tencent cloud



Last updated: 2022-08-17 15:58:03

1. API Description

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

This API (DescribeTasks) is used to query the list of tasks for a TencentDB instance.

A maximum of 50 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: DescribeTasks.
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 No String Instance ID in the format of cdb-c1nl9rpv. It is the same as the instance ID displayed on the TencentDB Console page. You can use the instance list querying API to query the ID, whose value is the InstanceId value in output parameters.
AsyncRequestId No String ID of an async task request, i.e., AsyncRequestId returned by relevant TencentDB operations.
TaskTypes.N No Array of Integer Task type. If no value is passed in, all task types will be queried. Valid values:
1 - rolling back a database;
2 - performing an SQL operation;
3 - importing data;
5 - setting a parameter;
6 - initializing a TencentDB instance;
7 - restarting a TencentDB instance;
8 - enabling GTID of a TencentDB instance;
9 - upgrading a read-only instance;
10 - rolling back databases in batches;
11 - upgrading a primary instance;
12 - deleting a TencentDB table;
13 - promoting a disaster recovery instance.
TaskStatus.N No Array of Integer Task status. If no value is passed in, all task statuses will be queried. Valid values:
-1 - undefined;
0 - initializing;
1 - running;
2 - succeeded;
3 - failed;
4 - terminated;
5 - deleted;
6 - paused.
StartTimeBegin No String Start time of the first task in the format of yyyy-MM-dd HH:mm:ss, such as 2017-12-31 10:40:01. It is used for queries by time range.
StartTimeEnd No String End time of the last task in the format of yyyy-MM-dd HH:mm:ss, such as 2017-12-31 10:40:01. It is used for queries by time range.
Offset No Integer Record offset. Default value: 0.
Limit No Integer Number of results to be returned for a single request. Default value: 20. Maximum value: 100.

3. Output Parameters

Parameter Name Type Description
TotalCount Integer Number of eligible instances.
Items Array of TaskDetail Information of an instance task.
RequestId String The unique request ID, which is returned for each request. RequestId is required for locating a problem.

4. Example

Example1 Querying the list of tasks for a TencentDB instance

Input Example

&<Common request parameters>

Output Example

    "Response": {
        "TotalCount": 5,
        "Items": [
                "Code": 9013,
                "Message": "[Operate CDB Fail][Upgrade Service Fail!] reason: ERR#-999: lock_inst.cgi: no instance records exist for some instance IDs",
                "JobId": 79,
                "AsyncRequestId": "9d21004b-3aa1896a-eeddca4b-a68f106d",
                "Progress": 10,
                "StartTime": "2019-10-09 20:03:39",
                "EndTime": "2019-10-09 20:39:34",
                "InstanceIds": [
                "TaskType": "OPEN GTID",
                "TaskStatus": "FAILED"
                "Code": 0,
                "Message": "Set parameters successfully",
                "JobId": 70,
                "AsyncRequestId": "1d564380-2e391736-f28fa246-43cea3aa",
                "Progress": 100,
                "StartTime": "2018-07-06 22:03:05",
                "EndTime": "2018-07-06 22:03:28",
                "InstanceIds": [
                "TaskType": "MODIFY PARAM",
                "TaskStatus": "SUCCEED"
                "Code": 0,
                "Message": "Initialized instance successfully",
                "JobId": 69,
                "AsyncRequestId": "ea39295d-420a0b4e-a98298c7-8751e1ad",
                "Progress": 100,
                "StartTime": "2018-07-06 22:01:42",
                "EndTime": "2018-07-06 22:02:26",
                "InstanceIds": [
                "TaskType": "INITIAL",
                "TaskStatus": "SUCCEED"
                "Code": 0,
                "Message": "Instance upgrade task is completed",
                "JobId": 68,
                "AsyncRequestId": "",
                "Progress": 100,
                "StartTime": "2018-07-05 23:53:48",
                "EndTime": "2018-07-06 22:05:10",
                "InstanceIds": [
                "TaskType": "UPGRADE MASTER",
                "TaskStatus": "SUCCEED"
                "Code": -1,
                "Message": "Failed to set parameters",
                "JobId": 66,
                "AsyncRequestId": "780b2e32-79cb0f4c-ec7854c5-44ff5371",
                "Progress": 0,
                "StartTime": "2018-07-05 23:30:36",
                "EndTime": "2018-07-05 23:30:37",
                "InstanceIds": [
                "TaskType": "MODIFY PARAM",
                "TaskStatus": "FAILED"
        "RequestId": "9a4b22f5-0f93-4a72-ba05-1eb6cdf37a1e"

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
CdbError Backend or process error.
InternalError.DatabaseAccessError Internal database error.
InternalError.DesError Internal system error.
InternalError.FtpError File transfer exception
InternalError.UnknownError Unknown error
InvalidParameter Parameter error.
InvalidParameter.InstanceNotFound The instance does not exist.
OperationDenied Operation denied.
OperationDenied.UserHasNoStrategy This account is not authorized to access the requested resource.
OperationDenied.WrongStatus The backend task status is invalid.
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