We recommend that you don’t change the settings. The default settings should work well for most use cases.

ISM stores its configuration in the .opendistro-ism-config index. Don’t modify this index without using the ISM API operations.

All settings are available using the Elasticsearch _cluster/settings operation. None require a restart, and all can be marked persistent or transient.

Setting Default Description
opendistro.index_state_management.enabled True Specifies whether ISM is enabled or not.
opendistro.index_state_management.job_interval 5 minutes The interval at which the managed index jobs are run.
opendistro.index_state_management.coordinator.sweep_period 10 minutes How often the routine background sweep is run.
opendistro.index_state_management.coordinator.backoff_millis 50 milliseconds The backoff time between retries for failures in the ManagedIndexCoordinator (such as when we update managed indices).
opendistro.index_state_management.coordinator.backoff_count 2 The count of retries for failures in the ManagedIndexCoordinator.
opendistro.index_state_management.history.enabled True Specifies whether audit history is enabled or not.
opendistro.index_state_management.history.max_docs 2,500,000 The maximum number of documents before rolling over the audit history index.
opendistro.index_state_management.history.max_age 24 hours The maximum age before rolling over the audit history index.
opendistro.index_state_management.history.rollover_check_period 8 hours The time between rollover checks for the audit history index.
opendistro.index_state_management.history.rollover_retention_period 30 days How long audit history indices are kept.
opendistro.index_state_management.allow_list All actions List of actions that you can use.