Changing Cluster Scale

Scenario

CCE allows you to change the number of nodes managed in a cluster.

Notes and Constraints

• This function is supported for clusters of v1.15 and later versions.
• Starting from v1.15.11, the number of nodes in a cluster can be changed to 2000. The number of nodes in a single master node cannot be changed to 1000 or more.
• Currently, a cluster can only be scaled out to a larger specification, but cannot be scaled in.
• Cluster scale changes cannot be rolled back. An alarm is reported if the change fails.
• Changing the cluster scale does not affect the services running in the cluster. However, the control plane (master nodes) will be interrupted for a short period of time. You are advised not to perform any other operations (such as creating workloads) during the change.

Procedure

1. Log in to the CCE console. In the navigation pane, choose Resource Management > Clusters.
2. In the cluster card, choose More > Change Specifications.

   

3. On the displayed page, set Management Scale as required.
4. Click Submit.

   You can click Back to Cluster List and click Task Status in the upper left corner to view the cluster change history. The status changes from Processing to Successful, indicating that the cluster specifications are successfully changed.

   

5. (Optional) If the cluster specifications fail to be changed, choose More > Change Specifications to change the cluster specifications again.