Help Center/ ModelArts/ API Reference/ Node Pool Management/ Deleting a Node Pool

Updated on 2025-11-19 GMT+08:00

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Deleting a Node Pool

Function

This API is used to remove a created node pool. This function is not supported for yearly/monthly resource pools. This API is used when you need to delete a specified node pool when the tasks in the node pool are complete, the configuration is incorrect, or resources need to be cleared. Before using this API, ensure that the node pool exists and you have the administrator permissions. After the deletion, the node pool is permanently removed, and related resources and configurations are cleared. If the node pool does not exist, the user does not have the permission to perform the operation, or the node pool cannot be deleted, for example, it is a yearly/monthly resource pool or the node pool is in use, the API will return an error message.

Debugging

You can debug this API through automatic authentication in API Explorer or use the SDK sample code generated by API Explorer.

URI

DELETE /v2/{project_id}/pools/{pool_name}/nodepools/{nodepool_name}

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Definition: User project ID. For details, see Obtaining a Project ID and Name. Constraints: N/A Range: N/A Default Value: N/A
pool_name	Yes	String	Definition: Resource pool name. Constraints: N/A Range: N/A Default Value: N/A
nodepool_name	Yes	String	Definition: Node pool name. Constraints: N/A Range: N/A Default Value: N/A

Request Parameters

None

Response Parameters

Status code: 200

**Table 2** Response body parameters
Parameter	Type	Description
apiVersion	String	Definition: API version. Range: v2
kind	String	Node pool type. The options are as follows: NodePool: node pool
metadata	NodePoolMetadata object	Definition: Node pool metadata.
spec	NodePoolSpec object	Definition: Node pool expectation.
status	NodePoolStatus object	Definition: Node pool status.

**Table 3** NodePoolMetadata
Parameter	Type	Description
name	String	Definition: Node pool name. You can specify the name. If not specified, the default name is used. Range: N/A

**Table 4** NodePoolSpec
Parameter	Type	Description
resources	PoolResource object	Definition: List of resources in a node pool, including resource flavors, quantity, and custom configurations. Range: N/A

**Table 5** PoolResource
Parameter	Type	Description
flavor	String	Definition: Resource flavor name, for example, modelarts.vm.gpu.t4u8. Range: N/A
count	Integer	Definition: Committed specifications. Range: N/A
maxCount	Integer	Definition: Elastic usage of the resource flavor. This parameter value is the same the count value in a physical pool. It is greater than or equal to the count value in a logical pool. Range: N/A
azs	Array of PoolNodeAz objects	Definition: AZ distribution of the node pool.
nodePool	String	Definition: Node pool name, for example, nodePool-1. Range: N/A
taints	Array of Taints objects	Definition: Taints to be added to nodes to set anti-affinity. This parameter cannot be specified for a non-privileged pool.
labels	Map<String,String>	Definition: Kubernetes label, in key-value pair format. Range: N/A
tags	Array of UserTags objects	Definition: Resource tag. This parameter cannot be specified for a non-privileged pool. Range: N/A
network	NodeNetwork object	Definition: Network configuration. This parameter cannot be specified for a non-privileged pool.
extendParams	Map<String,String>	Definition: Custom configuration parameters. dockerBaseSize: Specify the container engine space size of a resource pool node. The value 0 indicates that the size is not limited.
creatingStep	CreatingStep object	Definition: Information about batch creation.
os	Os object	Definition: OS image information.

**Table 6** Taints
Parameter	Type	Description
key	String	Definition: Key. Range: N/A
value	String	Value.
effect	String	Effect.

**Table 7** UserTags
Parameter	Type	Description
key	String	Definition: Key. The value cannot start with CCE- or __type_baremetal. Range: N/A
value	String	Value.

**Table 8** NodeNetwork
Parameter	Type	Description
vpc	String	Definition: VPC ID. Constraints: N/A Range: N/A Default Value: N/A
subnet	String	Definition: Subnet ID. Constraints: N/A Range: N/A Default Value: N/A
securityGroups	Array of strings	Definition: Security group ID set. Constraints: N/A

**Table 9** CreatingStep
Parameter	Type	Description
step	Integer	Definition: Step of a supernode. Constraints: N/A Range: Only the step contained in the resource specification details is supported. Default Value: N/A
type	String	Definition: Batch creation type. Constraints: N/A Range: hyperinstance: supernode Default Value: N/A

**Table 10** Os
Parameter	Type	Description
name	String	Definition: OS name. Range: N/A
imageId	String	Definition: OS image ID. Range: N/A
imageType	String	Definition: OS image type. Range: private: private image

**Table 11** NodePoolStatus
Parameter	Type	Description
resources	resources object	Definition: Resources in different states in a node pool.

**Table 12** resources
Parameter	Type	Description
creating	PoolResourceFlavorCount object	Definition: Number of resources that are being created.
available	PoolResourceFlavorCount object	Definition: Number of available resources.
abnormal	PoolResourceFlavorCount object	Definition: Number of abnormal resources.
deleting	PoolResourceFlavorCount object	Definition: Number of resources that are being deleted.

**Table 13** PoolResourceFlavorCount
Parameter	Type	Description
flavor	String	Definition: Resource flavor ID. Range: N/A
count	Integer	Definition: Number of resource specification instances in a resource pool. Range: N/A
maxCount	Integer	Definition: Number of elastic resource specification instances in a resource pool. The value of this parameter in a physical pool is the same as that of count. Range: N/A
azs	Array of PoolNodeAz objects	Definition: AZ distribution of the resource specification instances to be created in a resource pool.
nodePool	String	Definition: Node pool ID. Range: N/A

**Table 14** PoolNodeAz
Parameter	Type	Description
az	String	Definition: AZ name. Range: N/A
count	Integer	Definition: Number of AZ resource instances. Range: N/A

Status code: 400

**Table 15** Response body parameters
Parameter	Type	Description
error_code	String	Definition: ModelArts error code. Range: N/A
error_msg	String	Definition: Error message. Range: N/A

Example Requests

Delete a node pool.

DELETE https://{endpoint}/v2/{project_id}/pools/{pool_name}/nodepools/{nodepool_name}

{ }

Example Responses

Status code: 200

success

{
  "kind" : "NodePool",
  "apiVersion" : "v2",
  "metadata" : {
    "name" : "nodepool-1"
  },
  "spec" : {
    "resources" : {
      "nodePool" : "nodepool-1",
      "flavor" : "modelarts.vm.2u4g.dcc",
      "count" : 1,
      "maxCount" : 1,
      "network" : {
        "vpc" : "277e9abc-0e6b-431a-9232-cfd25d5fc566",
        "subnet" : "03796378-c356-4c14-826b-e4913aa9c8b9",
        "securityGroups" : [ "0a15b48d-06f1-41e4-b782-ade90087bf59" ]
      }
    }
  },
  "status" : {
    "resources" : {
      "available" : {
        "nodePool" : "nodepool-1",
        "flavor" : "modelarts.vm.2u4g.dcc",
        "count" : 1,
        "maxCount" : 1,
        "azs" : [ {
          "az" : "cn-north-7c",
          "count" : 1
        } ]
      }
    }
  }
}

Status code: 400

Bad request

{
  "error_code" : "ModelArts.50004000",
  "error_msg" : "Bad request."
}

Status Codes

Status Code	Description
200	success
400	Bad request

Error Codes

See Error Codes.

Parent topic: Node Pool Management

Previous topic: Updating a Node Pool

Next topic: Obtaining Nodes in a Node Pool

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