Snapshot and restore settingsedit
The following cluster settings configure snapshot and restore.
-
snapshot.max_concurrent_operations -
(Dynamic, integer) Maximum number of concurrent snapshot operations. Defaults to
1000.This limit applies in total to all ongoing snapshot creation, cloning, and deletion operations. Elasticsearch will reject any operations that would exceed this limit.
SLM settingsedit
The following cluster settings configure snapshot lifecycle management (SLM).
-
slm.history_index_enabled -
(Dynamic, Boolean)
Controls whether SLM records the history of actions taken as part of SLM policies
to the
slm-history-*indices. Defaults totrue.
-
slm.retention_schedule -
(Dynamic, cron scheduler value)
Controls when the retention task runs.
Can be a periodic or absolute time schedule.
Supports all values supported by the cron scheduler.
Defaults to daily at 1:30am UTC:
0 30 1 * * ?.
-
slm.retention_duration -
(Dynamic, time value)
Limits how long SLM should spend deleting old snapshots.
Defaults to one hour:
1h.
-
slm.health.failed_snapshot_warn_threshold -
(Dynamic, Long)
The number of failed invocations since last successful snapshot that
indicate a problem with the policy in the health api.
Defaults to a health api warning after five repeated failures:
5L.
-
repositories.url.allowed_urls
- (Static) Specifies the read-only URL repositories that snapshots can be restored from.