PolarDB:Scheduled Tasks

Precautions

• You can view the details of only the following scheduled tasks:

  • Upgrade the specifications of a cluster. For more information about the procedure, see Procedure.

  • Add cluster nodes. For more information about the procedure, see Add a read-only node.

  • Update the version of a cluster. For more information, see Minor version updates.

  • Change the primary zone. For more information about the procedure, see Change the primary zone and vSwitch of a cluster.

• You can cancel only the tasks whose Status is Pending. Scheduled tasks for downgrade operations such as node deletion and automatic or manual downgrade cannot be canceled.

• If you have questions about scheduled tasks, join the DingTalk group for consultation. The experts in the group can answer your questions. You can also use the chatbot assistant for PolarDB for MySQL in the group that provides 24/7 support. DingTalk group number: 51685000218.

View scheduled tasks

1. Log on to the PolarDB console.

2. In the left-side navigation pane, click Clusters.

3. In the upper-left corner, select the region where the cluster to which you want to connect is deployed.

4. In the left-side navigation pane, click Scheduled Tasks.

5. On the Scheduled Tasks page, you can view the details about all scheduled tasks in the region, such as the Task ID, Status, Task Action, Start Time, End Time, and Execution Time.

   

   Note

   • The API of the task is displayed in the Task Action column. The following Task Action are supported:

     • ModifyDBClusterPrimaryZone: changes the primary zone.

     • ModifyDBNodeClass: upgrades a cluster.

     • CreateDBNodes: adds cluster nodes.

     • UpgradeDBClusterVersion: updates the version of a cluster.

   • You can view the Order ID of the cluster only when Task Action is ModifyDBNodeClass or CreateDBNodes.

Cancel a scheduled task

1. Log on to the PolarDB console.

2. In the left-side navigation pane, click Clusters.

3. In the upper-left corner, select the region where the cluster to which you want to connect is deployed.

4. In the left-side navigation pane, click Scheduled Tasks.

5. On the Scheduled Tasks page, find the scheduled task that you want to cancel, and click Cancel in the Actions column.

   Note

   You can cancel only the tasks whose Status is Pending. Scheduled tasks for downgrade operations such as node deletion and automatic or manual downgrade cannot be canceled.

6. In the message that appears, click OK.

Related API operations