Maintenance in Yandex Managed Service for Apache Spark™
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Updated at February 25, 2026
Maintenance includes:
- Automatic installation of Apache Spark™ updates and patches for hosts (including for stopped clusters).
- Other maintenance activities.
Maintenance window
You can set the maintenance window when creating a cluster or updating its settings:
- The arbitrary option (default) allows performing maintenance at any time.
- The by schedule option allows setting the preferred maintenance start day and time (UTC). For example, you can choose a time when the cluster is least loaded.