SwitchDBInstanceMasterSlave

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2. Input Parameters

The following request parameter list only provides API request parameters and some common parameters. For the complete common parameter list, see Common Request Parameters.

Parameter Name	Required	Type	Description
Action	Yes	String	Common Params. The value used for this API: SwitchDBInstanceMasterSlave.
Version	Yes	String	Common Params. The value used for this API: 2017-03-20.
Region	Yes	String	Common Params. For more information, please see the list of regions supported by the product.
InstanceId	Yes	String	Instance ID
DstSlave	No	String	Specifies the replica server to switched to. Valid values: `first` (the first replica server), `second` (the second replica server). Default value: `first`. `second` is valid only for a multi-AZ instance.
ForceSwitch	No	Boolean	Whether to force the switch. Valid values: `True`, `False` (default). If this parameter is set to `True`, instance data may be lost during the switch.
WaitSwitch	No	Boolean	Whether to perform the switch during a time window. Valid values: `True`, `False` (default). If `ForceSwitch` is set to `True`, this parameter is invalid.

3. Output Parameters

Parameter Name	Type	Description
AsyncRequestId	String	Async task ID
RequestId	String	The unique request ID, which is returned for each request. RequestId is required for locating a problem.

4. Example

Example1 Performing a source-replica switch

Input Example

https://cdb.tencentcloudapi.com/?Action=SwitchDBInstanceMasterSlave
&InstanceId=cdb-xxxxxxxx
&DstSlave=second
&<Common request parameters>

Output Example

{
  "Response": {
    "RequestId": "faae8d6a-38fb-44de-988e-5a0e78aba4a7",
    "AsyncRequestId": "6EF60BEC-0242-43AF-BB20-270359FB54A7"
  }
}

5. Developer Resources

SDK

TencentCloud API 3.0 integrates SDKs that support various programming languages to make it easier for you to call APIs.

Command Line Interface

Tencent Cloud CLI 3.0

6. Error Code

The following only lists the error codes related to the API business logic. For other error codes, see Common Error Codes.

Error Code	Description
CdbError.DatabaseError	Backend database error.
InternalError.DatabaseAccessError	Internal database error.
InternalError.UnknownError	Unknown error
InvalidParameterValue.InvalidParameterValueError	Invalid parameter value
OperationDenied	Operation denied.
OperationDenied.InstanceStatusError	Exceptional instance status
OperationDenied.InstanceUnsupportedOperateError	The instance does not support this operation.
ResourceNotFound.CdbInstanceNotFoundError	The instance cannot be found. Please check whether your instance status is normal.

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