StartSwitchDatabase - PolarDB - Alibaba Cloud Documentation Center

Starts a database cutover for a database migration or synchronization task.

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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

polardbx:StartSwitchDatabase

none

*All Resource

*

None

Request parameters

Parameter	Type	Required	Description	Example
RegionId	string	Yes	The region ID of the instance.	cn-hangzhou
DBInstanceName	string	No	The name of the instance.	pxc-xxx
SlinkTaskId	string	Yes	The ID of the import task.	etx-szr2rr6i*****
IsModifyEndpoint	string	No	Specifies whether to modify the endpoint or port of the source or target instance.	true
SrcMainConnectString	string	No	The endpoint of the primary node of the source instance. This is typically the internal or public endpoint of the instance.	rm-*********.mysql.rds.aliyuncs.com
DstMainConnectString	string	No	The endpoint of the primary node of the target instance.	pxc-*********.polarx.rds.aliyuncs.com
SrcMainPort	string	No	The port number of the primary node of the source instance.	3308
DstMainPort	string	No	The port number of the target instance.	3313

Response elements

Element	Type	Description	Example
	object
Message	string	The response message.	*****
RequestId	string	Id of the request	9B2F3840-5C98-475C-B269-2D5C3A31797C
Success	boolean	Indicates whether the request was successful.	true
Data	object	The monitoring data.
SlinkTaskId	string	The ID of the slink task.	etx-szr2rr6i*****

Examples

Success response

JSON format

{
  "Message": "*****",
  "RequestId": "9B2F3840-5C98-475C-B269-2D5C3A31797C",
  "Success": true,
  "Data": {
    "SlinkTaskId": "etx-szr2rr6i*****"
  }
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.