EnableDBClusterServerless - PolarDB - Alibaba Cloud Documentation Center

Enables a stable serverless cluster.

Debugging

OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer.

Debug

Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

Operation: the value that you can use in the Action element to specify the operation on a resource.
Access level: the access level of each operation. The levels are read, write, and list.
Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
- The required resource types are displayed in bold characters.
- If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
Condition Key: the condition key that is defined by the cloud service.
Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.

Operation	Access level	Resource type	Condition key	Associated operation
polardb:EnableDBClusterServerless	Write	All Resources *	none	none

Request parameters

Parameter	Type	Required	Description	Example
DBClusterId	string	Yes	The cluster ID.	pc-**************
ScaleMin	string	No	The minimum number of PolarDB capacity units (PCUs) per node for scaling. Valid values: 1 to 8 PCUs.	1
ScaleMax	string	No	The maximum number of PCUs per node for scaling. Valid values: 1 to 8 PCUs.	2
ScaleRoNumMin	string	No	The minimum number of read-only nodes for scaling. Valid values: 0 to 7.	1
ScaleRoNumMax	string	No	The maximum number of read-only nodes for scaling. Valid values: 0 to 7.	2
ScaleApRoNumMin	string	No	The minimum number of stable AP read-only nodes. Valid values: 0 to 7.	1
ScaleApRoNumMax	string	No	The maximum number of stable AP read-only nodes. Valid values: 0 to 7.	1

Response parameters

Parameter	Type	Description	Example
	object
RequestId	string	The request ID.	5E71541A-6007-4DCC-A38A-F872C31FEB45
DBClusterId	string	The ID of the serverless cluster.	pc-bp10gr51qasnl****

Examples

Sample success responses

JSONformat

{
  "RequestId": "5E71541A-6007-4DCC-A38A-F872C31FEB45",
  "DBClusterId": "pc-bp10gr51qasnl****"
}

Error codes

HTTP status code	Error code	Error message	Description
404	InvalidDBInstanceClass.NotFound	rw class code must be equal with hot replica	The specification of the secondary node must be the same as that of the primary node.

For a list of error codes, visit the Service error codes.