最后更新时间:2021-11-18 10:45:45

1. API Description

Domain name for API request:

This API is used to promote a replica node group of a multi-AZ deployed instance to master node group.

A maximum of 20 requests can be initiated per second for this API.

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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 parameter. The value used for this API: ChangeReplicaToMaster.
Version Yes String Common parameter. The value used for this API: 2018-04-12.
Region Yes String Common parameter. For more information, please see the list of regions supported by the product.
InstanceId Yes String Instance ID
GroupId Yes Integer Replica ID

3. Output Parameters

Parameter Name Type Description
TaskId Integer 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 Sample request

Input Example

Content-Type: application/json
X-TC-Action: ChangeReplicaToMaster
<Common request parameters>

    "InstanceId": "crs-sa5dsfs",
    "GroupId": 301524

Output Example

  "Response": {
    "RequestId": "c4ed5948-d156-4931-b9c3-10133a0bb6c9",
    "TaskId": 10856

5. Developer Resources


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

Command Line Interface

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
AuthFailure CAM signature/authentication error.
AuthFailure.InvalidAuthorization Invalid authorization.
FailedOperation.SystemError Internal system error, which is irrelevant to the business.
FailedOperation.UnSupportError The instance does not support this API.
InvalidParameter.IllegalParameterError Invalid parameter.
InvalidParameter.InvalidParameter Invalid service parameter.
InvalidParameter.PermissionDenied The API has no CAM permissions.
InvalidParameterValue Invalid parameter value.
ResourceNotFound.InstanceNotExists No Redis instance is found by the serialId.
ResourceUnavailable.InstanceStatusError Operation unsupported: the instance is exceptional.