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Index management settings

You can use the following cluster settings to enable or disable index management features.

action.auto_create_index: (Dynamic) Automatically create an index if it doesn’t already exist and apply any configured index templates. Defaults to true.

action.destructive_requires_name: (Dynamic) When set to true, you must specify the index name to delete an index. It is not possible to delete all indices with _all or use wildcards.

cluster.indices.close.enable: (Dynamic) Enables closing of open indices in Elasticsearch. If false, you cannot close open indices. Defaults to true.

Closed indices still consume a significant amount of disk space.

reindex.remote.whitelist: (Static) Specifies the hosts that can be reindexed from remotely. Expects a YAML array of host:port strings. Consists of a comma-delimited list of host:port entries. Defaults to ["\*.io:*", "\*.com:*"].

stack.templates.enabled

(Dynamic) If true, enables built-in index and component templates. Elastic Agent uses these templates to create data streams. If false, Elasticsearch disables these index and component templates. Defaults to true.

This setting affects the following built-in index templates:

logs-*-*
metrics-*-*
synthetics-*-*

This setting also affects the following built-in component templates:

logs-mappings
logs-settings
metrics-mappings
metrics-settings
synthetics-mapping
synthetics-settings

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https://www.elastic.co/guide/en/elasticsearch/reference/7.17/index-management-settings.html