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Elastic High Performance Computing:ListCommands

Last Updated:Aug 28, 2026

Queries interactive commands in a cluster.

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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:ListCommands

*All Resource

*

None None

Request parameters

Parameter

Type

Required

Description

Example

ClusterId

string

Yes

The cluster ID.

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

ehpc-hz-FYUr32****

CommandId

string

No

The command ID.

c-hz01v8vudql****

PageNumber

integer

No

The page number to return. Pages start from 1.

Default value: 1.

1

PageSize

integer

No

The number of entries per page.
Valid values: 1 to 50.
Default value: 10.




10

Response elements

Element

Type

Description

Example

object

PageSize

integer

The number of entries returned per page.

10

RequestId

string

The request ID.

04F0F334-1335-436C-A1D7-6C044FE7****

PageNumber

integer

The page number of the returned page.

1

TotalCount

integer

The total number of returned entries.

1

Commands

object

Command

array<object>

The list of commands.

object

Timeout

string

The timeout period. Unit: seconds.

60

CommandId

string

The command ID.

c-hz01v8vudql****

WorkingDir

string

The working directory of the command.

/home

CommandContent

string

The content of the command.

echo "hello world"

Examples

Success response

JSON format

{
  "PageSize": 10,
  "RequestId": "04F0F334-1335-436C-A1D7-6C044FE7****",
  "PageNumber": 1,
  "TotalCount": 1,
  "Commands": {
    "Command": [
      {
        "Timeout": "60",
        "CommandId": "c-hz01v8vudql****",
        "WorkingDir": "/home",
        "CommandContent": "echo \"hello world\""
      }
    ]
  }
}

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 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 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 EcsError An error occurred while calling the ECS API operation. ECS API call error. %s
406 AgentError The agent service request failed. The cluster-side command failed to run. %s
406 AliyunError An Alibaba Cloud product error occurred. Alibaba Cloud product error. %s
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.