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Elastic Compute Service:DescribeDedicatedHostClusters

Last Updated:Apr 25, 2025

Queries the details of one or more dedicated host groups.

Operation description

Usage notes

You can specify multiple request parameters to filter query results. Specified request parameters have logical AND relations. Only the specified parameters are included in the filter conditions. However, if DedicatedHostClusterIds is set to an empty JSON array ([]), this parameter is regarded as a valid filter condition and an empty result is returned.

Debugging

You can run this interface directly in OpenAPI Explorer, saving you the trouble of calculating signatures. After running successfully, OpenAPI Explorer can automatically generate SDK code samples.

Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

  • Operation: the value that you can use in the Action element to specify the operation on a resource.
  • Access level: the access level of each operation. The levels are read, write, and list.
  • Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
    • For mandatory resource types, indicate with a prefix of * .
    • If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
  • Condition Key: the condition key that is defined by the cloud service.
  • Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.
OperationAccess levelResource typeCondition keyAssociated operation
ecs:DescribeDedicatedHostClustersget
DedicatedHostCluster
acs:ecs:{#regionId}:{#accountId}:ddhcluster/{#ddhclusterId}
DedicatedHostCluster
acs:ecs:{#regionId}:{#accountId}:ddhcluster/*
    none
none

Request parameters

ParameterTypeRequiredDescriptionExample
StatusstringNo
Note This parameter is unavailable for use.
null
LockReasonstringNo
Note This parameter is unavailable for use.
null
ResourceGroupIdstringNo

The resource group ID of the host group. You can use a resource group ID to filter no more than 1,000 host groups.

Note A default resource group is not supported.
rg-bp67acfmxazb4p****
Tagarray<object>No

The tags of the host group.

objectNo

The tags of the host group.

KeystringNo

The tag key. Valid values of N: 1 to 20. The tag key cannot be an empty string. It can be up to 64 characters in length, and can neither contain http:// or https:// nor acs: or aliyun.

You can filter no more than 1,000 host groups, regardless of how many tags are used. To query more than 1,000 host groups, call the ListTagResources API operation.

TestKey
ValuestringNo

The tag value. Valid values of N: 1 to 20. The tag value cannot be an empty string. It can be up to 64 characters in length and cannot contain http:// or https://.

TestValue
RegionIdstringYes

The region ID of the host group. You can call the DescribeRegions operation to query the most recent region list.

cn-hangzhou
ZoneIdstringNo

The zone ID of the host group. You can call the DescribeZones operation to query the most recent zone list.

cn-hangzhou-f
DedicatedHostClusterIdsstringNo

The list of host group IDs. The value can be a JSON array consisting of multiple IDs in the ["dc-xxxxxxxxx", "dc-yyyyyyyyy",..., "dc-zzzzzzzzz"] format. Separate the IDs with commas (,).

["dc-bp12wlf6am0vz9v2****", "dc-bp12wlf6am0vz9v3****"]
DedicatedHostClusterNamestringNo

The name of the host group.

myDDHCluster
PageNumberintegerNo

The page number.

Pages start from page 1.

Default value: 1

1
PageSizeintegerNo

The number of entries to return on each page.

Valid values: 1 to 100.

Default value: 10.

5

Response parameters

ParameterTypeDescriptionExample
object
PageSizeinteger

The number of entries per page.

5
RequestIdstring

The request ID.

214A2187-B06F-4E49-A081-4D053466A8C7
PageNumberinteger

The page number.

1
TotalCountinteger

The total number of dedicated host clusters.

2
DedicatedHostClustersarray<object>

An array consisting of host group information.

DedicatedHostClusterobject
Descriptionstring

The description of the host group.

This-is-my-DDHCluster
DedicatedHostClusterIdstring

The ID of the host group.

dc-bp12wlf6am0vz9v2****
ResourceGroupIdstring

The resource group ID of the host group.

rg-bp67acfmxazb4p****
ZoneIdstring

The zone ID of the host group.

cn-hangzhou-f
RegionIdstring

The region ID of the host group.

cn-hangzhou
DedicatedHostClusterNamestring

The name of the host group.

myDDHCluster
Tagsarray<object>

The tags of the host group.

Tagobject
TagValuestring

The tag value.

TestValue
TagKeystring

The tag key.

TestKey
DedicatedHostIdsarray

The IDs of dedicated hosts in the host group.

DedicatedHostIdstring

The ID of the dedicated host.

["dh-bp181e5064b5sotr****","dh-bp18064b5sotrr9c****"]
DedicatedHostClusterCapacityobject

The capacity of the host group.

AvailableVcpusinteger

The number of available vCPUs.

2
AvailableMemoryinteger

The size of available memory. Unit: GiB

4
TotalMemoryinteger

The total memory size. Unit: GiB

8
TotalVcpusinteger

The total number of vCPUs.

4
LocalStorageCapacitiesarray<object>

The local storage capacity.

LocalStorageCapacityobject
DataDiskCategorystring

The category of data disks. Valid values:

  • cloud: basic disk
  • cloud_efficiency: ultra disk
  • cloud_ssd: standard SSD
  • ephemeral_ssd: local SSD
  • cloud_essd: Enterprise SSD (ESSD)
cloud
AvailableDiskinteger

The available capacity of the local disk. Unit: GiB

20
TotalDiskinteger

The total capacity of the local disk. Unit: GiB

40
AvailableInstanceTypesarray<object>

The available capacity of ECS instances in the host group.

AvailableInstanceTypeobject
InstanceTypestring

The ECS instance type.

ecs.c6.26xlarge
AvailableInstanceCapacityinteger

The available capacity of the ECS instance type.

0

Examples

Sample success responses

JSONformat

{
  "PageSize": 5,
  "RequestId": "214A2187-B06F-4E49-A081-4D053466A8C7",
  "PageNumber": 1,
  "TotalCount": 2,
  "DedicatedHostClusters": {
    "DedicatedHostCluster": [
      {
        "Description": "This-is-my-DDHCluster",
        "DedicatedHostClusterId": "dc-bp12wlf6am0vz9v2****",
        "ResourceGroupId": "rg-bp67acfmxazb4p****",
        "ZoneId": "cn-hangzhou-f",
        "RegionId": "cn-hangzhou",
        "DedicatedHostClusterName": "myDDHCluster",
        "Tags": {
          "Tag": [
            {
              "TagValue": "TestValue",
              "TagKey": "TestKey"
            }
          ]
        },
        "DedicatedHostIds": {
          "DedicatedHostId": [
            [
              "dh-bp181e5064b5sotr****",
              "dh-bp18064b5sotrr9c****"
            ]
          ]
        },
        "DedicatedHostClusterCapacity": {
          "AvailableVcpus": 2,
          "AvailableMemory": 4,
          "TotalMemory": 8,
          "TotalVcpus": 4,
          "LocalStorageCapacities": {
            "LocalStorageCapacity": [
              {
                "DataDiskCategory": "cloud",
                "AvailableDisk": 20,
                "TotalDisk": 40
              }
            ]
          },
          "AvailableInstanceTypes": {
            "AvailableInstanceType": [
              {
                "InstanceType": "ecs.c6.26xlarge",
                "AvailableInstanceCapacity": 0
              }
            ]
          }
        }
      }
    ]
  }
}

Error codes

HTTP status codeError codeError messageDescription
400MissingParamter.RegionIdThe regionId should not be null.The RegionId parameter is required.
400InvalidParameter.DedicatedHostClusterIdsThe specified parameter dedicatedHostClusterIds is not valid.-
400InvalidRegion.NotFoundThe specified parameter RegionId is not valid.The specified RegionId parameter is invalid.
400InvalidZone.NotFoundThe specified parameter ZoneId is not valid.The specified ZoneId parameter is invalid.
403InvalidDedicatedHostIds.MalformedThe amount of specified dedicatedHostClusterIds exceeds the limit.-

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

Change history

Change timeSummary of changesOperation
2025-02-20API Description Update. The Error code has changedView Change Details