ISM settings
We don’t recommend changing these settings; the defaults should work well for most use cases.
Index State Management (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 OpenSearch _cluster/settings
operation. None require a restart, and all can be marked persistent
or transient
. To learn more about static and dynamic settings, see Configuring OpenSearch.
Setting | Default | Description |
---|---|---|
plugins.index_state_management.enabled | True | Specifies whether ISM is enabled or not. |
plugins.index_state_management.job_interval | 5 minutes | The interval at which the managed index jobs are run. |
plugins.index_state_management.jitter | 0.6 | A randomized delay that is added to a job’s base run time to prevent a surge of activity from all indexes at the same time. A value of 0.6 means a delay of 0-60% of a job interval is added to the base interval. For example, if you have a base interval time of 30 minutes, a value of 0.6 means an amount anywhere between 0 to 18 minutes gets added to your job interval. Maximum is 1, which means an additional interval time of 100%. This maximum cannot exceed plugins.jobscheduler.jitter_limit , which also has a default of 0.6. For example, if plugins.index_state_management.jitter is set to 0.8, ISM uses plugins.jobscheduler.jitter_limit of 0.6 instead. |
plugins.index_state_management.coordinator.sweep_period | 10 minutes | How often the routine background sweep is run. |
plugins.index_state_management.coordinator.backoff_millis | 50 milliseconds | The backoff time between retries for failures in the ManagedIndexCoordinator (such as when we update managed indexes). |
plugins.index_state_management.coordinator.backoff_count | 2 | The count of retries for failures in the ManagedIndexCoordinator . |
plugins.index_state_management.history.enabled | True | Specifies whether audit history is enabled or not. The logs from ISM are automatically indexed to a logs document. |
plugins.index_state_management.history.max_docs | 2,500,000 | The maximum number of documents before rolling over the audit history index. |
plugins.index_state_management.history.max_age | 24 hours | The maximum age before rolling over the audit history index. |
plugins.index_state_management.history.rollover_check_period | 8 hours | The time between rollover checks for the audit history index. |
plugins.index_state_management.history.rollover_retention_period | 30 days | How long audit history indexes are kept. |
plugins.index_state_management.allow_list | All actions | List of actions that you can use. |
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