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ApsaraDB for SelectDB:DescribeDBClusterConfig

Last Updated:Dec 25, 2025

Queries the configuration information about a cluster in an ApsaraDB for SelectDB 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

selectdb:DescribeDBClusterConfig

get

*All Resource

*

None None

Request parameters

Parameter

Type

Required

Description

Example

ConfigKey

string

Yes

The configuration file to be modified.

  • For a compute cluster, set the value to be.conf.

  • For a frontend (FE) cluster, set the value to fe.conf.

Valid values:

  • fe.conf :

    fe.conf

  • be.conf :

    be.conf

be.conf

DBClusterId

string

Yes

The cluster ID.

selectdb-cn-7213c8yvv09-be

DBInstanceId

string

Yes

The instance ID.

selectdb-cn-7213cjv****

RegionId

string

No

The region ID.

cn-hangzhou

Response elements

Element

Type

Description

Example

object

The response parameters.

Data

object

The information returned.

DbInstanceName

string

The instance ID.

selectdb-cn-wny3li0****

DbInstanceId

string

The numeric ID of the instance.

6585

DbClusterId

string

The cluster ID.

selectdb-cn-wny3li0****-be

TaskId

integer

The task ID.

107841167

Params

array<object>

The details about each parameter returned.

object

Name

string

The name of the parameter.

doris_scanner_thread_pool_thread_num

Optional

string

The value range of the parameter.

[0-20000]

Comment

string

The comments on the parameter.

存储引擎并发扫描硬盘的线程数。采用线程池统一管理。

Value

string

The current value of the parameter.

10

ParamCategory

string

The category of the parameter.

查询

DefaultValue

string

The default value of the parameter.

15

IsDynamic

integer

Indicates whether the parameter immediately takes effect without requiring a restart.

true

IsUserModifiable

integer

Indicates whether the parameter is modifiable.

true

DynamicCode

string

The dynamic code. This parameter is not returned.

0

DynamicMessage

string

The dynamic message. This parameter is not returned.

An error occurred while processing your request.

AccessDeniedDetail

string

The details about the access denial. This parameter is returned only if Resource Access Management (RAM) authentication failed.

failed

RequestId

string

The request ID.

ADF42B18-43FD-5100-83A9-BE81AB70C863

Examples

Success response

JSON format

{
  "Data": {
    "DbInstanceName": "selectdb-cn-wny3li0****",
    "DbInstanceId": "6585",
    "DbClusterId": "selectdb-cn-wny3li0****-be",
    "TaskId": 107841167,
    "Params": [
      {
        "Name": "doris_scanner_thread_pool_thread_num",
        "Optional": "[0-20000]",
        "Comment": "存储引擎并发扫描硬盘的线程数。采用线程池统一管理。",
        "Value": "10",
        "ParamCategory": "查询",
        "DefaultValue": "15",
        "IsDynamic": 0,
        "IsUserModifiable": 0
      }
    ]
  },
  "DynamicCode": "0",
  "DynamicMessage": "An error occurred while processing your request.",
  "AccessDeniedDetail": "failed",
  "RequestId": "ADF42B18-43FD-5100-83A9-BE81AB70C863"
}

Error codes

HTTP status code

Error code

Error message

Description

400 DocumentConvertFailed.ExceedFileSizeLimit The conversion has been failed, exceed file size limit. english description1
400 Forbidden User not authorized to operate on the specified resource, or this API does not support RAM. english description1
400 InvalidDBName The specified database name is not allowed. english description1
400 CreateOrderFailed Failed to create order. Failed to create order.
400 InvalidDBInstanceId.Malformed The specified parameter "DBInstanceId" is not valid. The parameter "DBInstanceId" is illegal.
403 DBClusterNotSupported The requested operation can not be performed while the cluster is not sale. The requested operation cannot be performed while the cluster is not running.
403 IncorrectDBInstanceState Current DB instance state does not support this operation. english description1
403 InstanceEngineType.NotSupport The instance engine and type does not support operations. english description1
403 InvalidDBInstanceState.NotSupport The specified instance state does't support this operation. The instance is in a state that does not support the current operation.
403 MoneyLessThan100 The Account Monet less Than 100. english description1
403 OperationDenied.DBNameAndAccountPrivilegeCount The operation is not permitted due to count of database or account privilege. english description1
403 InsufficientResourceCapacity The resource is out of usage. Not enough resources, please try again later.
404 DBInstanceLocked The current instance lock mode does not support this operation. english description1
404 IncorrectVswitchId The specified parameter VSwitchId is not valid. english description1
404 InvalidApi.NotFound Specified api is not found, please check your url and method.
404 InvalidDBInstance.NotFound The specified instance is not found. english description1
404 InvalidDBInstanceClass.NotFound The specified instance classic does not exist. english description1
404 InvalidRegionId.NotFound The provided RegionId does not exist in our records. english description1
404 QueryPrice.Failed The inquiry failed. Contact Alibaba Cloud customer service representatives. english description1
404 InvalidDBInstanceId.NotFound The DBInstanceId provided does not exist in our records. Instance does not exist.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.