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ApsaraDB RDS:DescribeDedicatedHosts

Last Updated:Jun 12, 2026

Mengkueri informasi host di klaster khusus.

Deskripsi operasi

Fitur klaster khusus mengelola instance secara batch dalam bentuk klaster. Anda dapat membuat beberapa klaster khusus di satu wilayah. Sebuah klaster khusus berisi beberapa host, dan sebuah host berisi beberapa instance. Untuk informasi lebih lanjut, 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:DescribeDedicatedHosts

get

*全部资源

*

None None

Parameter permintaan

Parameter

Type

Required

Description

Example

RegionId

string

No

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

cn-hangzhou

DedicatedHostGroupId

string

No

ID klaster khusus. Anda dapat memanggil operasi DescribeDedicatedHostGroups untuk mengkueri ID klaster khusus.

dhg-7a9xxxxxxxx

OrderId

integer

No

ID pesanan.

102565235

HostType

string

No

Tipe penyimpanan host. Nilai yang valid:

  • dhg_cloud_ssd: enhanced SSD (ESSD).

  • dhg_local_ssd: SSD lokal.

dhg_cloud_ssd

HostStatus

string

No

Status host. Nilai yang valid:

  • 0: Sedang dibuat

  • 1: Sedang digunakan

  • 2: Bermasalah

  • 3: Offline karena kesalahan (host sedang diganti)

  • 4: Offline

  • 5: Dihapus

  • 6: Sedang memulai ulang

1

AllocationStatus

string

No

Menentukan apakah instance dapat di-deploy pada host. Nilai yang valid:

  • 0: Instance tidak dapat di-deploy.

  • 1: Instance dapat di-deploy.

1

ZoneId

string

No

ID zona.

cn-hangzhou-i

DedicatedHostId

string

No

ID host di klaster khusus.

ch-t4nn100ddxxxxxxxx

Elemen respons

Element

Type

Description

Example

object

DedicatedHostGroupId

string

ID grup host.

dhg-7a9xxxxxxxx

DedicatedHosts

object

DedicatedHosts

array<object>

Daftar informasi host.

object

AccountName

string

The host account. You can call the CreateDedicatedHostAccount operation to create a host account.

test123

AllocationStatus

string

Specifies whether instances can be deployed on the host. Valid values:

  • 0: Instances cannot be deployed on the host.

  • 1: Instances can be deployed on the host.

1

BastionInstanceId

string

The bastion host ID.

bastionhost-cn-m7xxxxxxxx

CPUAllocationRatio

string

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

200

CpuUsed

string

The number of used CPU cores on the host. Unit: cores.

4

CreatedTime

string

The time when the host was created.

2021-03-25 17:29:06.0

DedicatedHostGroupId

string

The dedicated cluster ID.

dhg-7a9xxxxxxxx

DedicatedHostId

string

The host ID.

i-bpxxxxxxx

DiskAllocationRatio

string

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

200

EndTime

string

The time when the host expires.

2021-04-25T16:00:00Z

Engine

string

The database engine of instances that are created on the host.

mysql

HostCPU

string

The total number of CPU cores that are configured for the host. Unit: cores.

8

HostClass

string

The instance type of the host.

ecs.i2.16xlarge

HostMem

string

The total memory space of the host. Unit: MB.

32238

HostName

string

The host name.

testHost1

HostStatus

string

The status of the host. Valid values:

  • 0: creating

  • 1: running

  • 2: faulty

  • 3: being replaced

  • 4: deprecated

  • 5: deleting

  • 6: restarting

1

HostStorage

string

The storage capacity of the host. Unit: MB.

2097152

HostType

string

The storage type of the host. Valid values:

  • dhg_cloud_ssd: ESSD

  • dhg_local_ssd: local SSD

dhg_cloud_ssd

IPAddress

string

The internal IP address of the host.

192.xx.xx.xx

ImageCategory

string

The host image. This parameter is returned only when the Engine parameter is set to mssql. Valid values:

  • WindowsWithMssqlStdLicense: a Windows image that contains the licenses of SQL Server Standard Edition

  • WindowsWithMssqlEntLisence: a Windows image that contains the licenses of SQL Server Enterprise Edition

  • WindowsWithMssqlWebLisence: a Windows image that contains the licenses of SQL Server Web Edition

WindowsWithMssqlStdLicense

InstanceNumber

string

The total number of instances that are created on the host.

4

MemAllocationRatio

string

The maximum memory usage per host in the dedicated cluster.

90

MemoryUsed

string

The size of the used memory. Unit: MB.

16384

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

StorageUsed

string

The amount of used storage space on the host.

0

VPCId

string

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

vpc-bpxxxxxxx

VSwitchId

string

The ID of the vSwitch associated with the specified VPC.

vsw-bpxxxxxxx

ZoneId

string

The zone ID of the host.

cn-hangzhou-i

RequestId

string

ID permintaan.

C860658E-68A6-46C1-AF6E-3AE7C4D3CACF

Contoh

Respons sukses

JSONformat

{
  "DedicatedHostGroupId": "dhg-7a9xxxxxxxx",
  "DedicatedHosts": {
    "DedicatedHosts": [
      {
        "AccountName": "test123",
        "AllocationStatus": "1",
        "BastionInstanceId": "bastionhost-cn-m7xxxxxxxx",
        "CPUAllocationRatio": "200",
        "CpuUsed": "4",
        "CreatedTime": "2021-03-25 17:29:06.0",
        "DedicatedHostGroupId": "dhg-7a9xxxxxxxx",
        "DedicatedHostId": "i-bpxxxxxxx",
        "DiskAllocationRatio": "200",
        "EndTime": "2021-04-25T16:00:00Z",
        "Engine": "mysql",
        "HostCPU": "8",
        "HostClass": "ecs.i2.16xlarge",
        "HostMem": "32238",
        "HostName": "testHost1",
        "HostStatus": "1",
        "HostStorage": "2097152",
        "HostType": "dhg_cloud_ssd",
        "IPAddress": "192.xx.xx.xx",
        "ImageCategory": "WindowsWithMssqlStdLicense",
        "InstanceNumber": "4",
        "MemAllocationRatio": "90",
        "MemoryUsed": "16384",
        "OpenPermission": "3",
        "StorageUsed": "0",
        "VPCId": "vpc-bpxxxxxxx",
        "VSwitchId": "vsw-bpxxxxxxx",
        "ZoneId": "cn-hangzhou-i"
      }
    ]
  },
  "RequestId": "C860658E-68A6-46C1-AF6E-3AE7C4D3CACF"
}

Kode kesalahan

HTTP status code

Error code

Error message

Description

400 InvalidUserId.NotSupport The userid have no permission.
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 InvalidDedicatedHostGroup.NotFound Specified DedicatedHostGroup does not exists.
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.