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Alerting: Add state_periodic_save_batch_size config option (#98019)

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* Alerting: Add state_periodic_save_batch_size config option

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Co-authored-by: brendamuir <100768211+brendamuir@users.noreply.github.com>
This commit is contained in:
Alexander Akhmetov
2024-12-16 15:30:38 +01:00
committed by GitHub
co-authored by brendamuir
parent 22a9770ec5
commit 1f8f9a45d7
11 changed files with 243 additions and 37 deletions
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docs/sources/alerting/set-up/performance-limitations/index.md
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@@ -63,7 +63,9 @@ transition of an alert instance is saved in the database.
This can be prevented by writing to the database periodically. For this the feature flag `alertingSaveStatePeriodic` needs
to be enabled. By default, it saves the states every 5 minutes to the database and on each shutdown. The periodic interval
can also be configured using the `state_periodic_save_interval` configuration flag.
can also be configured using the `state_periodic_save_interval` configuration flag. During this process, Grafana deletes all existing alert instances from the
database and then writes the entire current set of instances back in batches in a single transacton.
Configure the size of each batch using the `state_periodic_save_batch_size` configuration option.
The time it takes to write to the database periodically can be monitored using the `state_full_sync_duration_seconds` metric
that is exposed by Grafana.