Changing the Specifications of an HBase Cluster

Constraints

• The entire cluster becomes temporarily unavailable during the specification change. Subsequent specification changes are not permitted until the current operation completes.
• You can change the specifications of only one type of nodes at a time. After the change, nodes in other types still maintain their original specifications.
• If the data volume is large, it may take long to modify the node specifications. You are advised to increase the node specifications during off-peak hours.

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).

Procedure

1. Log in to the CloudTable console.
2. On the Cluster Management page, locate the target cluster and choose More > Specification Expansion in its Operation column.
   

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

3. Select the target node type.
4. Select the CPU and memory from the node specifications drop-down list.
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