Changing the Specifications of a Doris Cluster

Constraints

• You can only increase cluster specifications. To decrease cluster specifications, create a new cluster with the desired specifications and migrate data from the existing cluster.
• You can change the specifications of only one node type (the BE or FE node) at a time. After the change, nodes in other types still maintain their original specifications.
• Modifying node specifications, especially with large data volumes, can be time-consuming. We recommend performing such operations during periods of low system utilization.
• A cluster restart will cause the entire cluster to be temporarily unavailable during the specification change. Subsequent specification changes are not permitted until the current operation completes.
• To maintain system stability, repeated specification changes within a short timeframe are not supported. Operational frequency of such changes must be limited.
• The system is unavailable during the specification change.

Prerequisites

Procedure

1. Log in to the CloudTable console.
2. Click Cluster Management to view the clusters.
3. In the cluster list, locate the row that contains the target cluster and choose More > Specification Expansion in the Operation column.
   Note

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

4. Set Configured Node to Frontend Nodes or Backend Nodes as required.
5. Select the CPU and memory specifications from the drop-down list.
6. 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