To ensure the stability of the ApsaraDB ClickHouse cluster, Alibaba Cloud updates the cluster at irregular intervals. We recommend that you select a maintenance window within the off-peak hours of your business to minimize the impact on the business during the maintenance process.

Modify the maintenance window of a cluster

  1. Log on to the ApsaraDB for ClickHouse console.
  2. In the upper-left corner, select the region where the cluster that you want to manage is deployed.
  3. On the Clusters page, click the Default Instances tab and click the ID of the cluster that you want to manage to go to the Cluster Information page. In the Configuration Information section, click the Pen icon icon next to Maintenance Window.
    Note To modify the maintenance windows of multiple clusters at a time, on the Default Instances tab, select the check boxes to the left of all clusters that you want to manage, and click Modify Maintenance Time Period in the upper-right corner.
  4. Select a maintenance window during off-peak hours and click OK.