anchor.diff:  -------------------
   <1> The default for `node.voting_only` is `false`.
   
  -IMPORTANT: The `voting_only` role requires the {default-dist} of Elasticsearch
  -and is not supported in the {oss-dist}. If you use the {oss-dist} and set
  +IMPORTANT: The `voting_only` role requires the {default-dist} of {es} and is not
  +supported in the {oss-dist}. If you use the {oss-dist} and set
   `node.voting_only` then the node will fail to start.  Also note that only
   master-eligible nodes can be marked as voting-only.
   
  
positive.code: default behavior in the {es} {default-dist}. If you want to use {ml-features},
  there must be at least one {ml} node in your cluster. For more information about
  {ml-features}, see
  {ml-docs}/xpack-ml.html[Machine learning in the {stack}].
  +
  IMPORTANT: If you use the {oss-dist}, do not set `node.ml`. Otherwise, the node
  fails to start.
  
negative.code: process>>.
  
  IMPORTANT: Master nodes must have access to the `data/` directory (just like
  `data` nodes) as this is where the cluster state is persisted between node 
  restarts.
  
  [float]
  [[dedicated-master-node]]
  ==== Dedicated master-eligible node
  
  It is important for the health of the cluster that the elected master node has 
  the resources it needs to fulfil its responsibilities. If the elected master 
  node is overloaded with other tasks then the cluster may not operate well. In 
  particular, indexing and searching your data can be very resource-intensive, so 
  in large or high-throughput clusters it is a good idea to avoid using the 
  master-eligible nodes for tasks such as indexing and searching. You can do this 
  by configuring three of your nodes to be dedicated master-eligible nodes. 
  Dedicated master-eligible nodes only have the `master` role, allowing them to
  focus on managing the cluster. While master nodes can also behave as 
  <<coordinating-node,coordinating nodes>> and route search and indexing requests
  from clients to data nodes, it is better _not_ to use dedicated master nodes for
  this purpose.
  
  To create a dedicated master-eligible node in the {default-dist}, set:
  
  