Help Center/ Data Warehouse Service/ API Reference/ API Description/ Node Change/ Deleting CN Nodes in Batches
Updated on 2025-08-06 GMT+08:00
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Deleting CN Nodes in Batches

Function

After a cluster is created, the number of required CN nodes varies with workloads. You can add or delete CN nodes as needed.

  • Other O&M operations cannot be performed during CN addition or deletion.

  • Services need to be stopped during CN node addition or deletion. You are advised to perform this operation during off-peak hours or when services are interrupted.

  • If a fault occurs during CN node addition or deletion and the rollback fails, you need to log in to the backend to rectify the fault. For details, see "Cluster Usage" > "Failed to Roll Back CN Addition or Deletion" in Troubleshooting.

Calling Method

For details, see Calling APIs.

URI

POST /v1.0/{project_id}/clusters/{cluster_id}/cns/batch-delete

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Definition

Project ID. To obtain the value, see Obtaining a Project ID.

Constraints

N/A

Range

N/A

Default Value

N/A

cluster_id

Yes

String

Definition

Cluster ID. For details about how to obtain the value, see Obtaining the Cluster ID.

Constraints

N/A

Range

N/A

Default Value

N/A

Request Parameters

Table 2 Request body parameters

Parameter

Mandatory

Type

Description

instances

No

Array of strings

Definition

IDs of the CN nodes to be deleted.

Constraints

N/A

Range

The value cannot be left blank.

Default Value

N/A

Response Parameters

Status code: 200

Table 3 Response body parameters

Parameter

Type

Description

job_id

String

Definition

Task ID for deleting CN nodes in batches.

Range

N/A

Example Requests

Delete CN nodes whose IDs are " b6ad3dc3-d2de-4d2c-a5df-fdde58eca8f0" in batches.

POST https://{Endpoint}/v1.0/89cd04f168b84af6be287f71730fdb4b/clusters/b5c45780-1006-49e3-b2d5-b3229975bbc7/cns/batch-delete

{
  "instances" : [ "b6ad3dc3-d2de-4d2c-a5df-fdde58eca8f0" ]
}

Example Responses

Status code: 200

The CN nodes are successfully deleted in batches.

{
  "job_id" : "2c908185841339ce018414e9944b0020"
}

Status Codes

Status Code

Description

200

The CN nodes are successfully deleted in batches.

400

Request error.

401

Authentication failed.

403

You do not have required permissions.

404

No resources found.

500

Internal server error.

503

Service unavailable.
Parent Topic: Node Change