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ApsaraDB RDS:DescribeHostGroupElasticStrategyParameters

Last Updated:Nov 17, 2025

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
rds:DescribeHostGroupElasticStrategyParametersget
*All Resources
*
    none
none

Request parameters

ParameterTypeRequiredDescriptionExample
RegionIdstringYes

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

cn-shanghai
DedicatedHostGroupNamestringYes

The name of the dedicated cluster.

dhg-d0dwi82293b2w9t5
ResourceGroupIdstringNo

The resource group ID.

rg-acfmy****

Response parameters

ParameterTypeDescriptionExample
object
RequestIdstring

The request ID.

60F9A12A-16B8-4728-B099-4CA38D32C31C
CpuSharinteger

The CPU utilization of the instance. Unit: percentage.

20
IopsZoominteger

The number of I/O requests.

10
MaxConnZoominteger

The maximum number of concurrent connections supported by the instance type.

30
CpuZoominteger

The number of CPU cores used by the instance. Unit: cores.

4
MemoryZoominteger

The total memory size of the instance in the dedicated cluster. Unit: MB.

1000

Examples

Sample success responses

JSONformat

{
  "RequestId": "60F9A12A-16B8-4728-B099-4CA38D32C31C",
  "CpuShar": 20,
  "IopsZoom": 10,
  "MaxConnZoom": 30,
  "CpuZoom": 4,
  "MemoryZoom": 1000
}

Error codes

HTTP status codeError codeError message
400InvalidCPUZoom.NotSupportThe param cpuZoom not in valid range
400InvalidCPUShar.NotSupportThe param cpuShar not in valid range
400InvalidMemoryZoom.NotSupportThe param memory zoom not in valid range
400InvalidIOPSZoom.NotSupportThe param iops zoom not in valid range
400InvalidMaxConnZoom.NotSupportThe param MaxConne zoom not in valid range
400InvalidResource.Type.NotSupportThe param Resource Type not in valid range
400InvalidIncreaseRatio.Type.NotSupportInsufficient host resources, please reduce the ratio
400InvalidDedicatedHostGroupNameThe DedicatedHostGroupName is invalid
400InvalidInsNameThe InsName is invalid
403ClusterTypeErrorCustins Cluster Type Error, Support User Cluster
403DedicatedHostNameIsNullDedicated Host Name Is Null!
404InvalidDedicatedHostGroupNamePhysical Custins Not Found!
404HostInfo.NotFound Current cluster not found host info!

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

Change history

Change timeSummary of changesOperation
2025-02-28The Error code has changedView Change Details
2024-11-20API Description Update. The Error code has changedView Change Details