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PolarDB:ModifyAIDBClusterModel

Last Updated:Sep 17, 2026

Changes the model or the client-facing invocation name of an AI cluster.

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Test

RAM authorization

No authorization for this operation. If you encounter issues with this operation, contact technical support.

Request parameters

Parameter

Type

Required

Description

Example

RegionId

string

Yes

The region ID.

cn-beijing

DBClusterId

string

Yes

The ID of the PolarDB AI 3.0 logical instance.

pm-2ze4x2mwo81knj08a

ModelName

string

Yes

The name of the target model. Select a value from the ModelName values returned by the DescribeAvailableModels operation.

Qwen3-32B

DisplayModelName

string

No

The new client-facing invocation name. If this parameter is not specified, the existing invocation name is retained.

my-flagship-chat

DryRun

boolean

No

The maximum number of workers to restart per batch within a single MSD. Valid values: 1 to 30. This parameter takes effect only when RestartMode is set to inPlace.

8

Response elements

Element

Type

Description

Example

object

Schema of Response

DryRun

boolean

Indicates whether the request is a dry-run request.

true

ModelType

string

The model type of the instance.

custom

RequestId

string

Id of the request

3AA6E0E4-1234-5678-90AB-1234567890AB

TargetModelName

string

The resolved target model name.

Qwen3-32B

TargetOssPath

string

The resolved target OSS path.

/my-model-bucket/models/qwen3

TaskId

integer

The ID of the asynchronous task. This parameter is empty when DryRun is set to true.

123456

TotalBatches

integer

The number of change batches.

1

TotalMsds

integer

The number of affected model serving instances.

2

Warnings

array

The change warnings returned by the upstream. The caller must display these warnings.

string

The warning content.

The change will restart model workers.

Examples

Success response

JSON format

{
  "DryRun": true,
  "ModelType": "custom",
  "RequestId": "3AA6E0E4-1234-5678-90AB-1234567890AB",
  "TargetModelName": "Qwen3-32B",
  "TargetOssPath": "/my-model-bucket/models/qwen3",
  "TaskId": 123456,
  "TotalBatches": 1,
  "TotalMsds": 2,
  "Warnings": [
    "The change will restart model workers."
  ]
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.