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ApsaraDB for SelectDB:CreateElasticRule

Last Updated:Dec 10, 2025

Creates a time-based scaling rule.

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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:CreateElasticRule

create

*All Resource

*

None None

Request parameters

Parameter

Type

Required

Description

Example

DbInstanceId

string

Yes

The instance ID.

selectdb-cn-7213cjv****

ClusterId

string

Yes

The cluster ID.

selectdb-xxxb9f2w-be

RegionId

string

Yes

The region ID.

cn-hangzhou

ElasticRuleStartTime

string

Yes

The start time of the time-based scaling rule.

00:00

ExecutionPeriod

string

Yes

The execution epoch.

Valid values:

  • Day :

    The rule is executed every day.

Day

ClusterClass

string

Yes

The target compute resource class for the cluster.

selectdb.2xlarge

Response elements

Element

Type

Description

Example

object

Schema of Response

RequestId

string

The request ID.

F8900A96-67F7-5274-A41B-7722E1ECF8C9

Data

object

The returned data.

DbInstanceId

string

The instance ID.

selectdb-cn-7213cjv****

ClusterId

string

The cluster ID.

selectdb-xxxb9f2w-be

RuleId

integer

The rule ID.

5465

ExecutionPeriod

string

The execution epoch.

Valid values:

  • Day :

    Day

Day

ElasticRuleStartTime

string

The start time of the time-based scaling rule.

00:00

ClusterClass

string

The target compute resource class for the cluster.

selectdb.2xlarge

Examples

Success response

JSON format

{
  "RequestId": "F8900A96-67F7-5274-A41B-7722E1ECF8C9",
  "Data": {
    "DbInstanceId": "selectdb-cn-7213cjv****\n",
    "ClusterId": "selectdb-xxxb9f2w-be",
    "RuleId": 5465,
    "ExecutionPeriod": "Day",
    "ElasticRuleStartTime": "00:00",
    "ClusterClass": "selectdb.2xlarge"
  }
}

Error codes

HTTP status code

Error code

Error message

Description

400 InvalidDBInstanceId.Malformed The specified parameter "DBInstanceId" is not valid. The parameter "DBInstanceId" is illegal.
400 InvalidClusterId.Malformed The specified parameter "ClusterId" is not valid.
400 InvalidRegionId.Malformed The specified parameter "RegionId" is not valid.
400 InvalidElasticRuleStartTime.Malformed The specified parameter "ElasticRuleStartTime" is not valid.
400 InvalidExecutionPeriod.Malformed The specified parameter "ExecutionPeriod" is not valid.
400 InvalidClusterClass.Malformed The specified parameter "ClusterClass" is not valid.
400 InvalidChargeType.NotSupport The specified parameter "ChargeType" does not meet the requirements.
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 InvalidInstanceType The operator is not permitted due to the instance type. The operation is prohibited because of the instance type.
403 OperationDenied.GetResourceLockFailed the operator is not permitted due to get resource lock failed. The request was denied because the resource lock failed to be obtained.
403 OperationDenied.AdjacentRulesClusterIsTheSame the operator is not permitted due to adjacent rules cluster class is the same. This operation is prohibited because the target computing resources of adjacent timesharing elasticity rules are the same.
403 OperationDenied.AdjacentRulesIntervalLessThanOneHour the operator is not permitted due to adjacent rules interval less than one hour. The operation is prohibited because the time interval between adjacent timesharing elasticity rules is less than 1 hour.
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 InvalidDBClusterId.NotFound The DBClusterId provided does not exist in our records. The cluster does not exist.
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

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.