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.