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    ApsaraDB RDS:Set a maintenance window

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    ApsaraDB RDS:Set a maintenance window

    Last Updated:Jun 21, 2026

    ApsaraDB RDS periodically performs maintenance on your instance to ensure its stability. The default maintenance window is 02:00–06:00. You can set the maintenance window to off-peak hours to minimize the potential impact on your business.

    To set the maintenance window for other database engines, see the following topics:

    Usage notes

    • Before scheduled maintenance begins, ApsaraDB RDS sends emails to the contacts for your Alibaba Cloud account. Be sure to check for these notifications.

    • During the maintenance window, the instance state changes to Maintaining Instance to ensure a stable process. While the instance is in this state, database access and query operations, such as performance monitoring, are not affected. However, management operations other than account management, database management, and IP address whitelist configuration are temporarily unavailable. These include operations such as instance upgrade, downgrade, and restart.

    • During the maintenance window, one or two instance switchovers may occur. Ensure that your application has a reconnection mechanism. For more information about the impacts of an instance switchover, see Impacts of an instance switchover.

    Modify the maintenance window for a single instance

    1. Go to the Instances page. In the top navigation bar, select the region in which the RDS instance resides. Then, find the RDS instance and click the ID of the instance.

    2. In the Configuration Information section, click Set next to Maintenance Window.

    3. Select a Start Time and End Time for the maintenance window, and then click OK.

      Note

      The maintenance window is displayed in the time zone of the computer you use to log on to the ApsaraDB RDS console.

    Modify maintenance windows for multiple instances

    1. Log on to the ApsaraDB RDS console. In the left-side navigation pane, click Instances. In the top navigation bar, select the region in which the RDS instance resides.

    2. Select the checkboxes next to the target instances, and then click Modify Maintenance Window at the bottom of the page.

    3. In the dialog box that appears, select a maintenance window and click OK.

      Note

      The maintenance window is displayed in the time zone of the computer you use to log on to the ApsaraDB RDS console.

    API reference

    To modify the maintenance window programmatically, call the ModifyDBInstanceMaintainTime API operation.