anchor.diff:  [[indices-update-settings]]
  -=== Update Indices Settings
  +=== Update index settings API
  +++++
  +<titleabbrev>Update index settings</titleabbrev>
  +++++
   
  -Change specific index level settings in real time.
  -
  -The REST endpoint is `/_settings` (to update all indices) or
  -`{index}/_settings` to update one (or more) indices settings.
  -The body of the request includes the updated settings, for example:
  +Changes an <<index-modules-settings,index setting>> in real time.
   
   [source,js]
   --------------------------------------------------
  
positive.code: // CONSOLE
  // TEST[continued]
  
  [float]
  [[update-settings-analysis]]
  ==== Updating Index Analysis
  
  It is also possible to define new <<analysis,analyzers>> for the index.
  But it is required to <<indices-open-close,close>> the index
  first and <<indices-open-close,open>> it after the changes are made.
  
  For example if `content` analyzer hasn't been defined on `myindex` yet
  you can use the following commands to add it:
  
  [source,js]
  --------------------------------------------------
  
negative.code: To preserve existing settings from being updated, the `preserve_existing`
  request parameter can be set to `true`.
  
  [[bulk]]
  ===== Bulk indexing usage
  
  For example, the update settings API can be used to dynamically change
  the index from being more performant for bulk indexing, and then move it
  