Loading

Node configuration

ECK

Any setting defined in the elasticsearch.yml configuration file can also be defined for a set of Elasticsearch nodes in the spec.nodeSets[?].config section.

Some settings are managed by ECK, it is not recommended to change them, refer to Settings managed by ECK for more details.

spec:
  nodeSets:
  - name: masters
    count: 3
    config:
      # On Elasticsearch versions before 7.9.0, replace the node.roles configuration with the following:
      # node.master: true
      node.roles: ["master"]
      xpack.ml.enabled: true
  - name: data
    count: 10
    config:
      # On Elasticsearch versions before 7.9.0, replace the node.roles configuration with the following:
      # node.master: false
      # node.data: true
      # node.ingest: true
      # node.ml: true
      # node.transform: true
      node.roles: ["data", "ingest", "ml", "transform"]
Warning

ECK parses Elasticsearch configuration and normalizes it to YAML. Consequently, some Elasticsearch configuration schema are impossible to express with ECK and, therefore, must be set using dynamic cluster settings. For example:

spec:
  nodeSets:
  - name: data
    # ...
    config:
      cluster.max_shards_per_node: 1000
      cluster.max_shards_per_node.frozen: 10001
    # ...
  1. This won't work because cluster.max_shards_per_node is defined as a scalar value on the previous line

For more information on Elasticsearch settings, check Configuring Elasticsearch.