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Elastic High Performance Computing:DeleteNodes

Last Updated:Apr 20, 2023

Deletes one or more compute nodes from a cluster.

Operation Description

Before you delete a compute node, we recommend that you export all job data from the node to prevent data loss.

Authorization information

There is currently no authorization information disclosed in the API.

Request parameters


The ID of the cluster.

You can call the ListClusters operation to query the cluster ID.


Specifies whether to release the instances that are created by using E-HPC.

Default value: true


Specifies whether to directly delete the node. Valid values:

  • true
  • false

Response parameters


The ID of the task.

  • If you set the Sync parameter to true, the DeleteNodes operation is synchronous. Valid value: Not Available.
  • If you set the Sync parameter to false, the DeleteNodes operation is asynchronous. You can call the ListTasks operation to query the result of the task.

The ID of the request.



Sample success responses


  "TaskId": "04F0F334-1335-436C-A1D7-6C044FE7****",
  "RequestId": "04F0F334-1335-436C-A1D7-6C044FE7****"

Error codes

HTTP status codeError codeError messageDescription
400InvalidParamsThe specified parameter %s is invalid.The specified parameter %s is invalid.
400NotEnabledYou have not enabled this serviceYou have not enabled this service
403InvalidClusterStatusThe operation failed due to invalid cluster status.The cluster status does not support the operation.
403InvalidNodeStatusThe operation failed due to invalid node status.The node status does not allow the operation.
403ConflictOptA conflicting operation is running.A conflicting operation is running. Please try again later.
404ClusterNotFoundThe specified cluster does not exist.The specified instance does not exist.
404ComputeNotFoundThe specified compute node does not exist.The specified compute node does not exist.
404ManagerNotFoundThe manager nodes do not exist or their status is abnormal.The manager nodes do not exist or their status is abnormal.
404ObjectNotFoundThe specified object is not found.The specified object does not exist. Please verify the parameter.
406EcsErrorAn error occurred while calling the ECS API operation.An error occurred while calling the ECS API operation.
406EipErrorThe EIP API request failed.EIP API request failed.
406DbErrorA database service error occurred.Database request failed.
406AliyunErrorAn Alibaba Cloud product error occurred.An Alibaba Cloud product error occurred.
407NotAuthorizedYou are not authorized by RAM for this request.The request is not authorized by RAM.
409PartFailurePart of the batch operation failed.Part of the batch operation failed.
500UnknownErrorAn unknown error occurred.The operation is unknown. Please check arguments and try again later.
503ServiceUnavailableThe request has failed due to a temporary failure of the serverThe request has failed due to a temporary failure of the server.

For a list of error codes, visit the Service error codes.