Help Center/ CloudTable Service/ User Guide/ Using Doris/ Doris Cluster O&M/ Adjusting the Capacity of a Doris Cluster/ Doris Node Scale-out
Updated on 2025-07-24 GMT+08:00
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Doris Node Scale-out

The node scale-out is performed by adding FE or BE nodes in the cluster and this operation does not affect system running.

Pay attention to the following requirements:

  • The number of FE nodes after the scale-out must be an odd number, such as 3 or 5.
  • The number of BE nodes after the scale-out ranges from 4 to 100.

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 > Scale Out in the Operation column.

    You can also click Scale Out on the cluster details page to go to the Scale Out page.

  4. Set Configured Node to Frontend Nodes or Backend Nodes as required.
  5. Click + to add nodes.
  6. Confirm the fee and resource quota, and click OK.

Scale-out Statuses

Table 1 Node scale-out statuses

Task Status

Description

Scaling out

Indicates that a cluster is being scaled out.

Scale-out failed

Indicates that the cluster fails to be scaled out.

Viewing Scaling Details

  • After you click OK, the cluster task status changes to Scaling out. After the cluster scale-out is complete, the cluster status changes to In service.
  • After you click OK, the cluster task status changes to Scaling out. If the scale-out fails, the cluster status is In service and the task status is Scale-out failed.