tencent cloud

APIs

DescribeDBInstanceConfig

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最終更新日: 2026-06-09 16:30:55

1. API Description

Domain name for API request: cdb.intl.tencentcloudapi.com.

This API is used to query the configuration message of a cloud database instance, including sync mode and deployment mode.

A maximum of 100 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: DescribeDBInstanceConfig.
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, in the format such as cdb-c1nl9rpv. This matches the instance ID displayed on the TencentDB console.

3. Output Parameters

Parameter Name Type Description
ProtectMode Integer

Data protection method of the primary instance, possible returned values: 0 - asynchronous replication mode, 1 - semi-sync replication mode, 2 - strong sync replication mode.

DeployMode Integer

Primary instance deployment mode. Possible returned values: 0 - single AZ deployment, 1 - multi-AZ deployment.

Zone String

Primary AZ information of the instance, in the format of "ap-shanghai-2".

SlaveConfig SlaveConfig

Configuration message of the first standby for two-node, three-node, and four-node instances.

When querying a two-node instance, this parameter returns the standby information of the two-node instance. When querying a three-node or four-node instance, this parameter returns the first standby information of the instance.


Note: This field may return null, indicating that no valid values can be obtained.
BackupConfig BackupConfig

Configuration message of the second standby database for three-node and 4-node instances.

When querying three-node and 4-node instances, this parameter returns the information of the second standby database.


Note: This field may return null, indicating that no valid values can be obtained.
Switched Boolean

Whether to switch over to the standby database.

FourthConfig BackupConfig

Configuration message of the third standby database in a 4-node instance.

When querying a 4-node instance, this parameter returns the info of the third standby database.

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 Query Instance Architecture Information

Input Example

POST / HTTP/1.1
Host: cdb.intl.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: DescribeDBInstanceConfig
<Common request parameters>

{
    "InstanceId": "cdbro-j99ornco"
}

Output Example

{
    "Response": {
        "BackupConfig": {
            "ReplicationMode": "sync",
            "Vip": "",
            "Vport": 0,
            "Zone": "ap-guangzhou-4"
        },
        "DeployMode": 0,
        "FourthConfig": {
            "ReplicationMode": "sync",
            "Vip": "",
            "Vport": 0,
            "Zone": "ap-guangzhou-4"
        },
        "ProtectMode": 2,
        "RequestId": "e6ad4a50-f251-4236-9c30-1887f330a38c",
        "SlaveConfig": {
            "ReplicationMode": "sync",
            "Zone": "ap-guangzhou-4"
        },
        "Switched": false,
        "Zone": "ap-guangzhou-4"
    }
}

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

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.
CdbError Backend or process error.
InternalError.CdbError System error.
InternalError.DBOperationError Database operation failed.
InternalError.InternalHttpServerError An exception occurred while executing the request.
InternalError.JSONError Failed to parse JSON.
InternalError.NetworkError Network error
InternalError.UndefinedError Unknown error
InternalError.UnknownError Unknown error
InvalidParameter Parameter error.
InvalidParameter.ControllerNotFoundError This API was not found.
InvalidParameter.InstanceNotFound The instance does not exist.
InvalidParameterValue.InvalidParameterValueError Invalid parameter value
OperationDenied Operation denied.

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