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elasticsearchHow do I configure node roles in Elasticsearch?

To configure node roles in Elasticsearch, you can use the node.roles setting in the elasticsearch.yml configuration file. This setting is a list of roles that the node should have. The available roles are master, data, ingest and ml.

For example, to configure a node to be a master and data node, you can add the following to elasticsearch.yml:

node.roles: [master, data]

This will cause the node to act as both a master and data node.

The following is a list of the available roles and their meanings:

  • master: A node with this role will be responsible for managing the cluster, including managing the state of the cluster and assigning shards to nodes.
  • data: A node with this role will store and index data, and serve search requests.
  • ingest: A node with this role will process data before it is indexed.
  • ml: A node with this role will enable machine learning capabilities.

For more information, please refer to the Elasticsearch documentation.

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