DescribeHistoryTasks - - Alibaba Cloud Documentation Center

Retrieves a list of historical administrative tasks for PolarDB for MySQL instances, such as parameter changes, and instance restarts.

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RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.
API: The API that you can call to perform the action.
Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.
Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.
- For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.
- For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.
Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.
Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

polardb:DescribeHistoryTasks

get

*All Resource

*

None

Request parameters

Parameter	Type	Required	Description	Example
RegionId	string	No	The region ID. Note For more information, see DescribeRegions.	cn-beijing
PageSize	integer	No	The number of records per page. Valid values: 10 to 100. Default value: 10.	10
PageNumber	integer	No	The page number. Valid values: positive integers. Default value: 1.	1
InstanceType	string	No	Currently, only Instance is supported.	Instance
Status	string	No	The task status. Valid values: Scheduled: waiting for execution Running: executing Succeed: executed successfully Cancelling: stopping Canceled: stopped Waiting: waiting for preset time You can provide a comma-separated list. Default value: empty, which indicates all statuses.	Running
InstanceId	string	No	The resource ID to filter by. You can provide a comma-separated list of up to 30 IDs. Default value: empty, indicating no restriction. AI 翻译 bad case，冗余 2 倍长度 Note Currently, only PolarDB cluster IDs are supported.	pc-2zed3m89cw***
TaskId	string	No	The task ID. You can provide a comma-separated list of up to 30 IDs. Default value: empty, indicating no restriction.	t-0mqi38ho0cgjv***
TaskType	string	No	The task type. You can provide a comma-separated list of up to 30 task types. Default value: empty, indicating no restriction.	ChangeVariable
FromStartTime	string	Yes	The start of the time range to query, based on task start time. The time follows the ISO8601 standard and must be in `UTC+0` time. Format: `yyyy-MM-ddTHH:mm:ssZ`. The earliest supported time is 30 days ago. If the specified time is more than 30 days ago, it will be automatically converted to 30 days ago. AI 翻译： start v.s beginning	2025-01-02T11:31:03Z
ToStartTime	string	Yes	The end of the time range to query, based on task start time. The time follows the ISO8601 standard and must be in `UTC+0` time. Format: `yyyy-MM-ddTHH:mm:ssZ`.	2025-01-03T11:31:03Z
FromExecTime	integer	No	The minimum task execution time in seconds. Filters for tasks that took longer than this value. Default value: 0.AI 翻译： minimum value of v.s minimum; 中文：in seconds 应该放第一句。	0
ToExecTime	integer	No	The maximum task execution time in seconds. Filters for tasks that took less than this value. Default value: 0.	0
ResourceGroupId	string	No	The resource group ID.	rg-************

Response elements

Element	Type	Description	Example
	object	Details of the returned parameters.
PageNumber	integer	The page number of the query result.	1
RequestId	string	The unique ID of the request.	F90D7C14-2D1C-5B88-9CD1-23AB2CF89***
PageSize	integer	The number of records per page.	10
TotalCount	string	The total number of tasks that meet the conditions, regardless of paging factors. AI 翻译：改为正面表达 before:The total number of tasks that meet the conditions, regardless of paging factors. after: The total number of tasks that match the filter criteria, across all pages.	2
Items	array<object>	The list of tasks.
	object	The task object.
Status	string	The final status of the task.这应该是一个终态，原翻译 The task status Scheduled: waiting for execution Running: executing Succeed: executed successfully Failed: execution failed Cancelling: stopping Canceled: stopped Waiting: waiting for preset time	Succeed
TaskId	string	The task ID.	t-0mqt8qhnw04ipz0***
CurrentStepName	string	The name of the current step being executed. If this parameter is empty, the task has not started.	finish_task
StartTime	string	The start time of the task.	2025-03-03T07:25:16Z
EndTime	string	The end time of the task.	2025-03-03T07:30:57Z
TaskType	string	The task type.	ChangeVariable
RemainTime	integer	The estimated remaining execution time, in seconds (s). Note This value is for reference only. The actual execution time prevails.	0
Progress	number	The completion progress of the task, from 0.0 to 100.0.AI 翻译 bad case：仅仅翻译中文，没有读上下文代码。原翻译 the current progress，但实际是一个数值，写法应该不一样。	100.0
RegionId	string	The region ID.	cn-beijing
InstanceType	string	The resource type.	Instance
InstanceId	string	The resource ID.	pc-2zed3m89cw***
InstanceName	string	The resource name.	pc-2zed3m89cw***
DbType	string	The database type.	polardb_mysql
Product	string	The product.	polardb
TaskDetail	string	The task details.	{\"steps\":[{\"step_name\":\"init_task\"},{\"step_name\":\"exec_task\"},{\"step_name\":\"finish_task\"}]}
ReasonCode	string	The reason for initiating the current task.	""
ActionInfo	string	The allowed operation information. Note This feature is not supported yet.	{}
Uid	string	The UID of the account that owns the resource.翻译对比：The UID of the account that owns the resource. v.s The user ID to which the resource belongs.同样是从句，version A 更清晰、易懂	1816563541899***
CallerSource	string	The request source. Valid values: System: system User: user	User
CallerUid	string	The ID of the requesting user. If `CallerSource` is `User`, this is the user's UID.AI 翻译"when"和"if"的用法，原翻译：When CallerSource is User, this parameter represents the user UID.	1816563541899***

Examples

Success response

JSON format

{
  "PageNumber": 1,
  "RequestId": "F90D7C14-2D1C-5B88-9CD1-23AB2CF89***",
  "PageSize": 10,
  "TotalCount": "2",
  "Items": [
    {
      "Status": "Succeed",
      "TaskId": "t-0mqt8qhnw04ipz0***",
      "CurrentStepName": "finish_task",
      "StartTime": "2025-03-03T07:25:16Z",
      "EndTime": "2025-03-03T07:30:57Z",
      "TaskType": "ChangeVariable",
      "RemainTime": 0,
      "Progress": 100,
      "RegionId": "cn-beijing",
      "InstanceType": "Instance",
      "InstanceId": "pc-2zed3m89cw***",
      "InstanceName": "pc-2zed3m89cw***",
      "DbType": "polardb_mysql",
      "Product": "polardb",
      "TaskDetail": "{\\\"steps\\\":[{\\\"step_name\\\":\\\"init_task\\\"},{\\\"step_name\\\":\\\"exec_task\\\"},{\\\"step_name\\\":\\\"finish_task\\\"}]}",
      "ReasonCode": "\"\"",
      "ActionInfo": "{}",
      "Uid": "1816563541899***",
      "CallerSource": "User",
      "CallerUid": "1816563541899***"
    }
  ]
}

Error codes

HTTP status code	Error code	Error message	Description
400	Param.Invalid	The parameter is invalid.	The parameter is invalid.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.