To ensure the stability of an AnalyticDB for MySQL cluster, the backend system of AnalyticDB for MySQL maintains clusters at irregular intervals. The default maintenance window is from 02:00 (UTC+8) to 03:00 (UTC+8). We recommend that you set the maintenance window to the off-peak hours of your business to avoid negative impacts on your business.

Considerations

  • Before the maintenance starts, AnalyticDB for MySQL sends a text message or an email to notify the contacts that are specified for your Alibaba Cloud account.
  • During the maintenance window, you can access databases, manage accounts, manage databases, and configure the IP address whitelist for the cluster.
  • During the maintenance window, network jitters may occur and may affect read and write operations. Make sure that you have configured automatic reconnection policies for your applications.
  • During the maintenance window, the cluster may experience transient connections. Make sure that you have configured automatic reconnection policies for your applications.

Procedure

  1. Log on to the AnalyticDB for MySQL console.
  2. In the upper-left corner of the page, select the region where the target cluster resides.
  3. In the left-side navigation pane, click Clusters.
  4. On the V3.0 Clusters tab, click the target Cluster ID.
  5. In the Configuration Information section of the Cluster Information page, click the Edit icon next to Maintenance Window.
    Maintenance window
  6. Select a maintenance window and click OK.
    Set a maintenance window
    Note The UTC+8 time zone is used.