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ApsaraDB for SelectDB:CreateVirtualCluster

Last Updated:Dec 26, 2025

Creates a virtual cluster.

Operation description

This operation is available only for instances that use zone-redundant storage. The following conditions must be met:

  • The minor engine version of the instance is 4.0.7 or later.

  • The primary and standby clusters are in different zones.

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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:CreateVirtualCluster

create

*All Resource

*

None None

Request parameters

Parameter

Type

Required

Description

Example

DBInstanceId

string

Yes

The instance ID.

selectdb-cn-7213cjv****

RegionId

string

Yes

The region ID.

cn-hangzhou

ClusterName

string

Yes

The name of the cluster. The name must start with a letter and can be up to 64 characters long. It can contain letters (case-insensitive), digits, and underscores (_). The name cannot contain two or more consecutive underscores. The cluster name must be unique within the same instance.

vcg_demo

ActiveClusterId

string

Yes

The primary cluster ID.

selectdb-cn-7213cjv**** -be

StandbyClusterId

string

Yes

The standby cluster ID.

selectdb-26a3cjv**** -be

Response elements

Element

Type

Description

Example

object

Schema of Response

RequestId

string

Id of the request

5ED62C81-9948-5612-81E1-EA3853752306

Data

object

The returned data.

DbInstanceId

string

The instance ID.

selectdb-cn-7213cjv****

DbClusterId

string

The cluster ID.

selectdb-cn-7213cjv2ez-be

Examples

Success response

JSON format

{
  "RequestId": "5ED62C81-9948-5612-81E1-EA3853752306",
  "Data": {
    "DbInstanceId": "selectdb-cn-7213cjv****",
    "DbClusterId": "selectdb-cn-7213cjv2ez-be"
  }
}

Error codes

HTTP status code

Error code

Error message

Description

400 SystemError A system error occurred while processing your request. The system is abnormal.
400 ClusterNotSupport Current instance cluster does not support this operation. The operation is not supported in the current cluster state.
400 Forbidden User not authorized to operate on the specified resource, or this API does not support RAM. english description1
400 InvalidChargeType.NotSupport The specified parameter "ChargeType" does not meet the requirements.
400 InvalidDBName.Duplicate Specified DB name already exists in the This instance. New Cluster Name
400 InvalidClusterName.Format Specified ClusterName is not valid. It can not be empty string. The entered cluster name parameter is invalid.
400 MinorVersionNotSupport The instance version does not support the current operation. The instance version does not support the current operation.
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 OperationDenied.VirtualClusterBound The operation is not permitted due to it has been bound to a virtual cluster. Operation is not allowed because it is bound to a virtual cluster.
404 DBInstanceLocked The current instance lock mode does not support this operation. english description1
404 InvalidApi.NotFound Specified api is not found, please check your url and method.
404 InvalidDBInstanceId.NotFound The DBInstanceId provided does not exist in our records. Instance does not exist.
404 InvalidParam Invalid parameter, please check.
404 InvalidClusterName.NotFound The specified cluster name is not available. The specified cluster name is not available

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.