tencent cloud



Last updated: 2024-07-19 14:30:32

    1. API Description

    Domain name for API request: dcdb.tencentcloudapi.com.

    This API is used to query the information of instance nodes.

    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 Params. The value used for this API: DescribeDCDBInstanceNodeInfo.
    Version Yes String Common Params. The value used for this API: 2018-04-11.
    Region No String Common Params. This parameter is not required for this API.
    InstanceId Yes String Instance ID
    Limit No Integer The maximum number of results returned at a time. Value range: (0-100]. Default value: 100.
    Offset No Integer Offset of the returned results. Default value: 0.

    3. Output Parameters

    Parameter Name Type Description
    TotalCount Integer Total number of nodes
    NodesInfo Array of BriefNodeInfo Node information
    RequestId String The unique request ID, generated by the server, will be returned for every request (if the request fails to reach the server for other reasons, the request will not obtain a RequestId). RequestId is required for locating a problem.

    4. Example

    Example1 Querying the information of instance nodes

    Input Example

    POST / HTTP/1.1
    Host: dcdb.tencentcloudapi.com
    Content-Type: application/json
    X-TC-Action: DescribeDCDBInstanceNodeInfo
    <Common request parameters>
        "InstanceId": "tdsqlshard-8upuqubt"

    Output Example

        "Response": {
            "NodesInfo": [
                    "NodeId": "b991a3d602da35cf7bf64dcafcd5f7ad589aa6d9",
                    "Role": "master",
                    "ShardId": "shard-he2hj3al"
                    "NodeId": "9a498278e1775355cac16c23d65c59204aec52f1",
                    "Role": "slave",
                    "ShardId": "shard-he2hj3al"
                    "NodeId": "3c698ab9547674e361bae013439225356175668d",
                    "Role": "master",
                    "ShardId": "shard-mgsnag2z"
                    "NodeId": "2f0714ded5eaef1dd927fdc1429350470ce0017b",
                    "Role": "slave",
                    "ShardId": "shard-mgsnag2z"
            "RequestId": "6b8b1984-c226-46d9-ac0a-81e241cf7cdc",
            "TotalCount": 4

    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
    FailedOperation.OssOperationFailed Failed to request the backend API.
    InternalError.InnerSystemError Internal system error.
    InternalError.OperateDatabaseFailed Database operation failed.
    InvalidParameter.InstanceNotFound Failed to find the requested instance.
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