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Elastic High Performance Computing:GetQueue

Last Updated:Feb 25, 2026

Query the details of a specified queue in an E-HPC 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:GetQueue

get

*All Resource

*

None None

Request parameters

Parameter

Type

Required

Description

Example

ClusterId

string

No

The ID of the cluster.

You can call ListClusters to query the cluster ID.

ehpc-hz-FYUr32****

QueueName

string

No

The name of the queue.

comp

Response elements

Element

Type

Description

Example

object

The response data.

RequestId

string

The ID of the request.

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

Queue

object

The configuration of the queue.

QueueName

string

The name of the queue.

comp

EnableScaleOut

boolean

Specifies whether automatic scale-out is enabled for the queue. Valid values:

  • true

  • false

true

EnableScaleIn

boolean

Specifies whether automatic scale-in is enabled for the queue. Valid values:

  • true

  • false

true

MinCount

integer

The minimum number of compute nodes that the queue maintains.

0

MaxCount

integer

The maximum number of compute nodes that the queue maintains.

1000

InitialCount

integer

The initial number of nodes in the queue.

0

InterConnect

string

The network type between compute nodes in the queue. Valid values:

  • vpc

  • eRDMA

erdma

VSwitchIds

array

The list of virtual switches available to compute nodes in the queue. N ranges from 1 to 5.

string

The ID of the virtual switch.

vsw-t4nw7upbpzb3u071twiys

ComputeNodes

array

The hardware configurations of compute nodes in the queue.

NodeTemplate

The configuration details of the compute node.

AllocationStrategy

string

The strategy used for automatic scale-out of the queue.

PriorityInstanceType

RamRole

string

The name of the RAM role attached to compute nodes in the queue.

AliyunECSInstanceForEHPCRole

HostnamePrefix

string

The hostname prefix for compute nodes in the queue.

compute

HostnameSuffix

string

The hostname suffix for compute nodes in the queue.

demo

MaxCountPerCycle

integer

The minimum number of nodes delivered per scale-out cycle.

99

KeepAliveNodes

array

The list of nodes with deletion protection enabled in the queue.

string

The hostname of a node with deletion protection enabled.

compute000

ReservedNodePoolId

string

The ID of the reserved node pool.

rnp-756vlp7a

CreateTime

string

2025-01-01T12:05:00Z

UpdateTime

string

2025-01-01T12:05:00Z

Examples

Success response

JSON format

{
  "RequestId": "04F0F334-1335-436C-A1D7-6C044FE7****",
  "Queue": {
    "QueueName": "comp",
    "EnableScaleOut": true,
    "EnableScaleIn": true,
    "MinCount": 0,
    "MaxCount": 1000,
    "InitialCount": 0,
    "InterConnect": "erdma",
    "VSwitchIds": [
      "vsw-t4nw7upbpzb3u071twiys"
    ],
    "ComputeNodes": [
      {
        "InstanceType": "ecs.c7.4xlarge",
        "ImageId": "aliyun_3_x64_20G_alibase_20221102.vhd",
        "InstanceChargeType": "PostPaid",
        "PeriodUnit": "Month",
        "Period": 1,
        "AutoRenew": false,
        "AutoRenewPeriod": 1,
        "SpotStrategy": "NoSpot",
        "SpotPriceLimit": 0.97,
        "Duration": 1,
        "EnableHT": true,
        "SystemDisk": {
          "Category": "cloud_essd",
          "Size": 40,
          "Level": "PL0"
        },
        "DataDisks": [
          {
            "Category": "cloud_essd",
            "Size": 40,
            "Level": "PL0",
            "DeleteWithInstance": false,
            "MountDir": "/data1",
            "Device": "/dev/xvdb",
            "SnapshotId": "s-bp1ei2b44ripxuo46hym"
          }
        ]
      }
    ],
    "AllocationStrategy": "PriorityInstanceType",
    "RamRole": "AliyunECSInstanceForEHPCRole",
    "HostnamePrefix": "compute",
    "HostnameSuffix": "demo",
    "MaxCountPerCycle": 99,
    "KeepAliveNodes": [
      "compute000"
    ],
    "ReservedNodePoolId": "rnp-756vlp7a",
    "CreateTime": "2025-01-01T12:05:00Z",
    "UpdateTime": "2025-01-01T12:05:00Z"
  }
}

Error codes

HTTP status code

Error code

Error message

Description

403 InvalidClusterStatus The operation failed due to invalid cluster status. The cluster status does not support the operation.
404 ClusterNotFound The specified cluster does not exist. The specified instance does not exist.
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.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.