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Elastic High Performance Computing:AddLocalNodes

Last Updated:Dec 25, 2025

Adds local compute nodes to a hybrid cloud cluster or a cloud cluster.

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Test

RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

  • Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.

  • API: The API that you can call to perform the action.

  • Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.

  • Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.

    • For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.

    • For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.

  • Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.

  • Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

ehpc:AddLocalNodes

*All Resource

*

None

None

Request parameters

Parameter

Type

Required

Description

Example

ClusterId

string

Yes

The cluster ID.

ehpc-hz-FYUr32****

Nodes

string

Yes

A JSON-formatted string that contains the information about the local compute nodes. The information includes the HostName, IpAddress, CpuCores, and Memory (in MB) of each node.

[{"HostName":"test-HostName","IpAddress":"192.168.**.**"},{"CpuCores":2,"Memory":1024}]

Queue

string

No

The scheduler queue to which the local compute nodes are added.

test.q

Response elements

Element

Type

Description

Example

object

RequestId

string

The request ID.

04F0F334-1335-436C-A1D7-6C044FE73368

InstanceIds

object

InstanceId

array

A list of information about the local compute nodes in the cluster.

string

A list of information about the local compute nodes in the cluster.

[{"HostName":"test-HostName","IpAddress":"192.168.**.**"},{"CpuCores":2,"Memory":1024}]

Examples

Success response

JSON format

{
  "RequestId": "04F0F334-1335-436C-A1D7-6C044FE73368",
  "InstanceIds": {
    "InstanceId": [
      "[{\"HostName\":\"test-HostName\",\"IpAddress\":\"192.168.**.**\"},{\"CpuCores\":2,\"Memory\":1024}]"
    ]
  }
}

Error codes

HTTP status code

Error code

Error message

Description

400

InvalidParams

The specified parameter %s is invalid.

The specified parameter %s is invalid.

400

NotEnabled

You have not enabled this service

You have not enabled this service

400

InDebt

Your account has overdue payments.

Your account has overdue payments.

500

UnknownError

An unknown error occurred.

An unknown error occurred.

403

InvalidClusterStatus

The operation failed due to invalid cluster status.

The cluster status does not support the operation.

403

InvalidOpt

The specified operation is invalid. Please try again later. If the problem still exists, submit a ticket.

403

ConflictOpt

A conflicting operation is running.

A conflicting operation is running. Please try again later.

404

ClusterNotFound

The specified cluster does not exist.

The specified instance does not exist.

404

VolumeNotFound

The specified volume does not exist.

The specified storage does not exist. Please verify the parameter.

404

ManagerNotFound

The manager nodes do not exist or their status is abnormal.

The manager nodes do not exist or their status is abnormal.

404

ObjectNotFound

The specified object is not found.

The specified object does not exist. Please verify the parameter.

503

ServiceUnavailable

The request has failed due to a temporary failure of the server

The request has failed due to a temporary failure of the server.

406

DbError

A database service error occurred.

Database request failed.

407

NotAuthorized

You are not authorized by RAM for this request.

The request is not authorized by RAM.

409

PartFailure

Part of the batch operation failed.

Part of the batch operation failed.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.