Changing the Specifications of an HBase Cluster

Prerequisites

You can perform specification expansion on a cluster when the cluster is in the In service state and no task is being performed (such as node scale-out and disk expansion).

• You can only increase cluster specifications. To decrease cluster specifications, create a cluster with smaller specifications and migrate the data from the current cluster to it.
• During the specification change, the cluster is unavailable and the change cannot be initiated when a change is in progress.
• The system is unavailable during the specification change.
• You can change the specifications of only one node type at a time. After the change, nodes in other types still maintain their original specifications.

Procedure

1. Log in to the CloudTable console.
2. Click Cluster Management.
3. Select the cluster to be operated and choose Operation > More > Specification Expansion.
   

   You can also click Specification Expansion on the cluster details page to switch to the Specification Expansion page.

4. Click to select a specification.
5. Confirm the fee and resource quota, and click OK.

   After you click OK, the cluster status changes to Sub-health and the task status changes to Resizing Flavor. After the cluster specifications are changed, the cluster status changes to In service and the task status is cleared.

Specification Expansion Status