This topic describes how to configure a maintenance window for an ApsaraDB RDS for PostgreSQL instance. After you configure a maintenance window for your RDS instance, the backend system maintains your RDS instance during the maintenance window. This ensures the stability of your RDS instance. The default maintenance window spans from 02:00 to 06:00. We recommend that you set the maintenance window to an off-peak hour based on your business requirements. This helps prevent interruptions to your workloads.
Usage notes
Before the maintenance starts, the system sends emails to the contacts that are associated with your Alibaba Cloud account. We recommend that you check your email box on a regular basis to obtain up-to-date information.
When the maintenance window arrives, your RDS instance enters the Maintaining Instance state. This ensures a smooth maintenance process. When the RDS instance is in this state, database access and query operations such as performance monitoring are not affected. However, except for account management, database management, and IP address whitelist configuration, modification operations such as upgrade, downgrade, and restart are temporarily unavailable.
During the maintenance window, one or two instance switchovers occur. Make sure that your application is configured to automatically reconnect to your RDS instance. For more information about the impacts of an instance switchover, see Impacts of an instance switchover.
Modify the maintenance window of a single RDS instance
- 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.
In the Configuration Information section, click Settings to the right of Maintenance Window.
Configure the Start Time and End Time parameters and save the settings.
NoteThe time zone of the displayed maintenance window is the same as the time zone of the computer used to log on to the ApsaraDB RDS console.
Modify the maintenance window of multiple RDS instances at a time
- 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 your RDS instance resides.
Select the RDS instances whose maintenance window you want to modify and click Modify Maintenance Window below the instance list.
In the Modify Maintenance Window dialog box, select an appropriate maintenance window and click OK.
NoteThe time zone of the maintenance window is the same as that of the computer that you use to log on to the ApsaraDB RDS console.
Related operations
Operation | Description |
Modifies the maintenance window of an ApsaraDB RDS instance. |