Elasticsearch settings

For Managed Service for Elasticsearch clusters, you can configure Elasticsearch settings.

The label next to the setting name shows which interface can be used to configure this setting: the management console, CLI, API, or Terraform. The All interfaces label means that all of the above interfaces are supported.

Depending on the selected interface, the same setting may be represented in a different way, e.g.:

• Fielddata cache size in the management console is:

  • fielddata_cache_size in the gRPC API, CLI, and Terraform.
  • fielddataCacheSize in the REST API.

Cluster-level settingsCluster-level settings

You can use the following settings:

• Fielddata cache size All interfaces

  Maximum cache size allocated to field data. Specified as a string containing a relative (20%) or absolute (12GB) value. The maximum value is equal to 40% of the JVM heap. There is no default value, as the amount of cache allocated to field data is not limited.

  For more information, see the Elasticsearch documentation.

• Reindex remote whitelist API

  This is a comma-separated list of host IP addresses or FQDNs, as well as host ports that may be used as a remote source for the Reindex API.

  You can use the * wildcard character to specify an IP or port range, such as:

  hostname:9200, 192.168.0.*:9200, localhost:*
  

  For more information, see the Elasticsearch documentation.

• Reindex SSL CA path API

  The local path to the certificate file for the cluster to use to encrypt the connection to the remote source for the Reindex API.

  Add the certificate file as an extension to the cluster and specify the path as:

  /etc/elasticsearch/extensions/<extension_name>/<certificate_name>
  

  For more information, see the Elasticsearch documentation.