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    PolarDB:CreateAIDBClusterTask

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    PolarDB:CreateAIDBClusterTask

    Last Updated:Aug 07, 2026

    Creates a model creation operator instance.

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    RAM authorization

    The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

    • Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.

    • API: The API that you can call to perform the action.

    • Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.

    • Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.

      • For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.

      • For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.

    • Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.

    • Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

    Action

    Access level

    Resource type

    Condition key

    Dependent action

    polardb:CreateAIDBClusterTask

    create

    *All Resource

    *

    		 None None

    Request syntax

    POST  HTTP/1.1

    Request parameters

    Parameter

    Type

    Required

    Description

    Example
    RegionId

    string

    No

    The region ID.

    cn-beijing
    DBClusterId

    string

    Yes

    The cluster ID.

    pc-****************
    ModelSource

    string

    Yes

    The model source. Valid values:

    • public: preset model

    • custom: custom model

    public
    ModelType

    string

    No

    The custom model type.

    qwen3
    ModelName

    string

    Yes

    The model name.

    • For a preset model, specify the name of the selected model.

    • For a custom model, specify the path where the model is stored (the model trained in a cold storage instance).

    Qwen3-8B

    DatasetPath

    string

    No

    The training dataset ID. This parameter is required for fine-tuning.

    pds-2zetrain***
    EvalDatasetPath

    string

    No

    The validation dataset ID. This parameter is required for evaluation.

    pds-2zetrain***
    RunningParameter

    string

    Yes

    The running parameters in a JSON string.

    {"split_dataset_ratio": 0.1,"train_mode": "grpo","train_type": "lora","num_epochs": 1,"batch_size": 2,"eval_batch_size": 2, "num_generations": 2, "learning_rate": "1e-6", "data_file_list": "test-00000-of-00001.jsonl#1000", "lora_rank": 8, "lora_alpha": 32, "external_plugins": "/plugin/train/plugin.py", "reward_funcs": "format,external_countdown", "gpu_memory_utilization": 0.4}
    KubeType

    string

    Yes

    The model service type. Valid values:

    • aitrain: model operator tuning

    Valid values:

    • aitrain :

      aitrain

    aitrain
    TaskName

    string

    No

    The model service description.

    xxxx
    ZoneId

    string

    No

    The zone ID.

    cn-hangzhou-k
    VPCId

    string

    No

    The virtual private cloud (VPC) ID.

    vpc-*******************
    VSwitchId

    string

    No

    The vSwitch ID.

    vsw-*********************
    SecurityGroupId

    string

    No

    The security group ID.

    sg-bp**************
    DBInstanceClass

    string

    No

    The instance type.

    polar.pg.g6.4xlarge.guh
    TuneArch

    string

    No

    No

    cold_storage

    No

    my-bucket

    Response elements

    Element

    Type

    Description

    Example

    object

    Schema of Response

    RequestId

    string

    Id of the request

    CED079B7-A408-41A1-BFF1-EC608E******
    OrderId

    string

    The order ID.

    2035638*******
    DBClusterId

    string

    The instance ID of the generated model service.

    pm-2zo88***

    Examples

    Success response

    JSON format

    {
  "RequestId": "CED079B7-A408-41A1-BFF1-EC608E******",
  "OrderId": "2035638*******",
  "DBClusterId": "pm-2zo88***"
}

    Error codes

    See Error Codes for a complete list.

    Release notes

    See Release Notes for a complete list.