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ApsaraDB RDS:DescribeDedicatedHostGroups

Last Updated:Jun 12, 2026

Mengkueri informasi tentang klaster khusus RDS.

Deskripsi operasi

Fitur klaster khusus memungkinkan Anda mengelola instans secara berkelompok berdasarkan klaster. Anda dapat membuat beberapa klaster khusus di satu wilayah. Klaster khusus berisi beberapa host, dan host berisi beberapa instans. Untuk informasi selengkapnya, lihat Ikhtisar klaster khusus.

Coba sekarang

Coba API ini di OpenAPI Explorer tanpa perlu penandatanganan manual. Panggilan yang berhasil akan secara otomatis menghasilkan contoh kode SDK sesuai dengan parameter Anda. Unduh kode tersebut dengan kredensial bawaan yang aman untuk penggunaan lokal.

Test

RAM authorization

Tabel berikut menjelaskan otorisasi yang diperlukan untuk memanggil API ini. Anda dapat menentukannya dalam kebijakan Resource Access Management (RAM). Kolom pada tabel dijelaskan sebagai berikut:

  • Action: Aksi yang dapat digunakan dalam elemen Action pada pernyataan kebijakan izin RAM untuk memberikan izin guna melakukan operasi tersebut.

  • API: API yang dapat Anda panggil untuk melakukan aksi tersebut.

  • Access level: Tingkat akses yang telah ditentukan untuk setiap API. Nilai yang valid: create, list, get, update, dan delete.

  • Resource type: Jenis resource yang mendukung otorisasi untuk melakukan aksi tersebut. Ini menunjukkan apakah aksi tersebut mendukung izin tingkat resource. Resource yang ditentukan harus kompatibel dengan aksi tersebut. Jika tidak, kebijakan tersebut tidak akan berlaku.

    • Untuk API dengan izin tingkat resource, jenis resource yang diperlukan ditandai dengan tanda bintang (*). Tentukan Nama Sumber Daya Alibaba Cloud (ARN) yang sesuai dalam elemen Resource pada kebijakan.

    • Untuk API tanpa izin tingkat resource, ditampilkan sebagai All Resources. Gunakan tanda bintang (*) dalam elemen Resource pada kebijakan.

  • Condition key: Kunci kondisi yang didefinisikan oleh layanan. Kunci ini memungkinkan kontrol granular, berlaku baik hanya untuk aksi maupun untuk aksi yang terkait dengan resource tertentu. Selain kunci kondisi spesifik layanan, Alibaba Cloud menyediakan serangkaian common condition keys yang berlaku di semua layanan yang didukung RAM.

  • Dependent action: Aksi dependen yang diperlukan untuk menjalankan aksi tersebut. Untuk menyelesaikan aksi tersebut, pengguna RAM atau role RAM harus memiliki izin untuk melakukan semua aksi dependen.

Action

Access level

Resource type

Condition key

Dependent action

rds:DescribeDedicatedHostGroups

get

*全部资源

*

None None

Parameter permintaan

Parameter

Type

Required

Description

Example

RegionId

string

Yes

ID wilayah. Anda dapat memanggil operasi DescribeRegions untuk mengkueri ID wilayah yang tersedia.

cn-hangzhou

DedicatedHostGroupId

string

No

ID klaster khusus.

dhg-7a9xxxxxxxx

ImageCategory

string

No

Image host yang digunakan untuk mengkueri klaster khusus. Nilai valid:

  • WindowsWithMssqlStdLicense: Windows (dengan lisensi SQL Server Edisi Standar).

  • WindowsWithMssqlEntLisence: Windows (dengan lisensi SQL Server Edisi Perusahaan).

  • WindowsWithMssqlWebLisence: Windows (dengan lisensi SQL Server Edisi Web).

  • AliLinux: Linux.

WindowsWithMssqlStdLicense

Elemen respons

Element

Type

Description

Example

object

Parameter tanggapan.

DedicatedHostGroups

object

DedicatedHostGroups

array<object>

Daftar informasi klaster khusus.

array<object>

Detail klaster khusus.

AllocationPolicy

string

The policy based on which the system allocates resources in the dedicated cluster. Valid values:

  • Evenly: The system evenly allocates the resources to all the hosts in the dedicated cluster.

  • Intensively: The system preferentially allocates the resources to the heavily loaded hosts in the dedicated cluster.

Evenly

BastionInstanceId

string

The ID of the bastion host.

bastionhost-cn-m7xxxxxxxx

CpuAllocateRation

number

The percentage of allocated cores in the dedicated cluster. Unit: %.

25

CpuAllocatedAmount

number

The number of allocated cores in the dedicated cluster.

8

CpuAllocationRatio

integer

The core overcommitment ratio of the dedicated cluster. Unit: %. For more information about the core overcommitment ratio, see Manage a dedicated cluster.

200

CreateTime

string

The timestamp when the dedicated cluster was created.

1571125370000

DedicatedHostCountGroupByHostType

object

The type of storage media that is used for the hosts in the dedicated cluster. Valid values:

  • dhg_cloud_ssd: cloud disks

  • dhg_local_ssd: local disks

dhg_cloud_ssd

DedicatedHostGroupDesc

string

The name of the dedicated cluster.

testHostGroup

DedicatedHostGroupId

string

The ID of the dedicated cluster.

dhg-7a9xxxxxxxx

DiskAllocateRation

number

The percentage of allocated disk space in the dedicated cluster. Unit: %.

0.49

DiskAllocatedAmount

number

The amount of allocated disk space in the dedicated cluster. Unit: GB.

200

DiskAllocationRatio

integer

The disk overcommitment ratio of the dedicated cluster. Unit: %. For more information about the core overcommitment ratio, see Manage a dedicated cluster.

200

DiskUsedAmount

number

The amount of used disk space in the dedicated cluster. Unit: GB.

20

DiskUtility

number

The disk usage of the dedicated cluster. Unit: %.

0

Engine

string

The database engine of the instances in the dedicated cluster.

MySQL

HostNumber

integer

The total number of hosts in the dedicated cluster.

3

HostReplacePolicy

string

The policy that is used to handle host failures. Valid values:

  • Auto: The system automatically replaces faulty hosts.

  • Manual: You must manually replace faulty hosts.

Auto

InstanceNumber

integer

The total number of instances in the dedicated cluster.

4

MemAllocateRation

number

The percentage of allocated memory space in the dedicated cluster. Unit: %.

33.7

MemAllocatedAmount

number

The amount of allocated memory space in the dedicated cluster.

16384

MemAllocationRatio

integer

The memory overcommitment ratio of the dedicated cluster. Unit: %. For more information about the core overcommitment ratio, see Manage a dedicated cluster.

90

MemUsedAmount

number

The amount of used memory space in the dedicated cluster. Unit: MB.

0

MemUtility

number

The memory usage of the dedicated cluster. Unit: %.

0

OpenPermission

string

Indicates whether the feature that allows you to have the OS permissions on the host is enabled. Valid values:

  • 0 or null: The permissions cannot be granted.

  • 1: The permissions can be granted.

  • 3: The permissions have been granted.

3

Text

string

The name and ID of the dedicated cluster. The value consists of DedicatedHostGroupDesc and DedicatedHostGroupId. Format: DedicatedHostGroupDesc/DedicatedHostGroupId.

testHostGroup/dhg-7a9xxxxxxxx

VPCId

string

The ID of the virtual private cloud (VPC) to which the dedicated cluster belongs.

vpc-bp1oxxxxxx

ZoneIDList

object

ZoneIDList

array

The zones to which the hosts of the dedicated cluster belong.

string

The zones to which the hosts of the dedicated cluster belong.

cn-hangzhou

RequestId

string

ID permintaan.

AB44DC0A-7E77-442A-97A9-C6418694CB22

Contoh

Respons sukses

JSONformat

{
  "DedicatedHostGroups": {
    "DedicatedHostGroups": [
      {
        "AllocationPolicy": "Evenly",
        "BastionInstanceId": "bastionhost-cn-m7xxxxxxxx",
        "CpuAllocateRation": 25,
        "CpuAllocatedAmount": 8,
        "CpuAllocationRatio": 200,
        "CreateTime": "1571125370000",
        "DedicatedHostCountGroupByHostType": {
          "test": "test",
          "test2": 1
        },
        "DedicatedHostGroupDesc": "testHostGroup",
        "DedicatedHostGroupId": "dhg-7a9xxxxxxxx",
        "DiskAllocateRation": 0.49,
        "DiskAllocatedAmount": 200,
        "DiskAllocationRatio": 200,
        "DiskUsedAmount": 20,
        "DiskUtility": 0,
        "Engine": "MySQL",
        "HostNumber": 3,
        "HostReplacePolicy": "Auto",
        "InstanceNumber": 4,
        "MemAllocateRation": 33.7,
        "MemAllocatedAmount": 16384,
        "MemAllocationRatio": 90,
        "MemUsedAmount": 0,
        "MemUtility": 0,
        "OpenPermission": "3",
        "Text": "testHostGroup/dhg-7a9xxxxxxxx",
        "VPCId": "vpc-bp1oxxxxxx",
        "ZoneIDList": {
          "ZoneIDList": [
            "cn-hangzhou"
          ]
        }
      }
    ]
  },
  "RequestId": "AB44DC0A-7E77-442A-97A9-C6418694CB22"
}

Kode kesalahan

HTTP status code

Error code

Error message

Description

400 Forbidden User not authorized to operate on the specified resource.
400 Order.ComboInstanceNotAllowOperate A package instance is not allowed to operate independently.
400 Price.PricingPlanResultNotFound Pricing plan price result not found.
400 Order.NoRealNameAuthentication You have not passed the real-name authentication and do not meet the purchase conditions. Please log in to the user center for real-name authentication.
400 InsufficientAvailableQuota Your account quota limit is less than 0, please recharge before trying to purchase.
400 CommodityServiceCalling.Exception Failed to call commodity service.
400 RegionDissolvedEOM Dear customer, Alibaba Cloud plans to optimize and adjust the current region. Cloud services in this region will cease operations. You are currently unable to operate new purchase orders. Thank you for your understanding and support.
400 Commodity.InvalidComponent The module you purchased is not legal, please buy it again.
400 RegionEndTimeDissolvedAustralia Cloud services in the Australia (Sydney) region will be discontinued. Set the validity date to September 30, 2024 or earlier than September 30, 2024.
400 Price.CommoditySys Commodity system call exception.
400 Pay.InsufficientBalance Insufficient available balance.
400 Order.PeriodInvalid There is a problem with the period you selected, please choose again.
400 pay.noCreditCard Account not bound to credit card.
400 Order.InstHasUnpaidOrder There is an unpaid order for the service you have purchased. Please pay or void it before placing the order.
400 noAvailablePaymentMethod No payment method is specified for your account. We recommend that you add a payment method.
400 BasicInfoUncompleted Your information is incomplete. Complete your information before the operation.
400 Risk.RiskControlRejection Your account is abnormal, please contact customer service for details.
400 Api.NotSupport Specified api is not supported.
400 ContainForbiddenLabelError There is a label that prohibits placing orders. Please contact your distributor for assistance.
400 InvalidDBInstanceId.NotFound The DBInstanceId provided does not exist in records.
400 InvalidInstanceLevel.DiskType Specified instance level not support request disk type
400 InvalidParam Sepcified wal level Parameter is invalid. There are still logical slots in instance, so it can not be set as replica.
400 KmsApiError User secret key invalid.
400 System.SaleValidateFailed Sales expression validation system error.
400 Abs.InvalidAccount.NotFound account is not found.
400 SqlExecuteFailedOrTimeout sql command execution failed or timed out:%s.
400 ColdData.EngineVersionNotSupport The current instance engine version not support coldDataEnabled.
400 ColdData.MinorVersionNotSupport The current instance minor version not support coldDataEnabled.
400 IncorrectTargetClasscode The current instance type does not support this operation.
400 InvalidConnectionString.Duplicate Specified connection string already exists in the RDS.
400 RequiredParam.NotFound Required input param is not found.
400 Parameters.Invalid Parameter error, please check the parameters.
400 BackupPolicyNotSupport Cold Data won't open with CrossBackup or Flash Backup, please check Backup Policy.
400 InvalideStatus.Format The instance status does not support this operation.
400 InvalidReleasedKeepPolicy.Format Specified Released Keep Policy is not valid.
400 InvalidDBInstanceEngineType.Format the DB instance engine type does not support this operation.
400 Pay.NoCreditCard No credit cards.
400 VpcNetworkTypeNotSupport The vpc network type instance does not support this operation.
400 MirrorInsExists Specified DB instance mirror ins already existed.
400 UnsupportedClassCode The specified DB instance class stops selling.
400 InvalidBackupSet The specified database does not exist in the backup set.
400 OrdTCommodityQueryError Failed to query for product.
400 ProductInstanceReleased The instance has been released. Please check before placing the order.
400 RegionEndTimeDissolvedIndia The region is no longer supported.
500 ExternalFailure The request processing has failed due to external service failure.
500 RequestMetaDataFailed The service request failed. Please try again later or contact service personnel.
500 InvokeProxyFailure The request processing has failed due to service failure of rds api.
403 OrderStatus.UnPaid The specified db instance has unpaid order.
403 InvalidReduceDiskSize The storage capacity after the scale-down must be larger than the used amount.
403 CloudSSDNotSupport Cloud ssd does not support this operation, please upgrade to essd.
403 InvalidUserOperatorPermission The user permission does not support this operation.
403 InvalidVswitchId Specified conn vswitch id is not valid.
403 IncorrectMinorVersion Current engine minor version does not support operations.
403 OperationDenied.ZoneResource There is no available zone for inventory.
403 NotInFlowController Sorry,no permission.
403 InvalidKmsKey Kms key is disabled.
403 InvalidInstanceLevel.Malformed Current DB instance level does not support this operation.
404 InvalidClusterKms The current instance does not authorized to access the Key Management Service.
404 Request.NotFound The requested resource is not available.
404 HostInfo.NotFound The specified host info is not found.

Lihat Error Codes untuk daftar lengkap.

Catatan rilis

Lihat Release Notes untuk daftar lengkap.