DescribeDiagnosisTasks - AnalyticDB for MySQL - Alibaba Cloud Documentation Center

Queries the execution information about distributed tasks in a stage of a query.

Debugging

OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer.

Debug

Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

Operation: the value that you can use in the Action element to specify the operation on a resource.
Access level: the access level of each operation. The levels are read, write, and list.
Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
- The required resource types are displayed in bold characters.
- If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
Condition Key: the condition key that is defined by the cloud service.
Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.

Operation	Access level	Resource type	Condition key	Associated operation
adb:DescribeDiagnosisTasks	Read	DBCluster acs:adb:{#regionId}:{#accountId}:dbcluster/{#DBClusterId}	none	none

Request parameters

Parameter	Type	Required	Description	Example
DBClusterId	string	Yes	The cluster ID. Note You can call the DescribeDBClusters operation to query the IDs of all AnalyticDB for MySQL Data Warehouse Edition (V3.0) clusters within a region.	am-bp1r053byu48p****
RegionId	string	No	The region ID of the cluster. Note You can call the DescribeRegions operation to query the most recent region list.	cn-hangzhou
ProcessId	string	Yes	The query ID. Note You can call the DescribeProcessList operation to query the IDs of queries that are being executed.	202011191048151921681492420315100****
StageId	string	Yes	The ID of a stage in the query that is specified by the `ProcessId` parameter.	Stage[26]
Order	string	No	The order in which to sort the tasks by field. Specify the value in the JSON format. Example: `[{"Field":"CreateTime", "Type":"desc"}]`. Note `Field` specifies the field that is used to sort the tasks. Valid values of Field: `State`, `CreateTime`, `DBName`, `ProcessID`, `UpdateTime`, `JobName`, and `ProcessRows`. `Type` specifies the sort order. Valid values of Type: `Desc` and `Asc`. The values are case-insensitive.	[{"Field":"StartTime", "Type": "desc" }]
PageNumber	integer	No	The page number.	1
PageSize	integer	No	The number of entries per page. Valid values: 30 (default) 50 100	30
State	string	No	The state of the asynchronous import or export task to be queried. Valid values: RUNNING FINISHED FAILED	RUNNING
Host	string	No	The IP address from which the query was initiated.	192.168.XX.XX

Response parameters

Parameter	Type	Description	Example
	object	The response parameters.
RequestId	string	The request ID.	F0983B43-B2EC-536A-8791-142B5CF1E9B6
TaskList	object []	The queried tasks.
ScanCost	long	The amount of time that is consumed to scan data from a data source in the task. Unit: milliseconds.	0
OutputDataSize	long	The amount of output data in the task. Unit: bytes.	123
InputDataSize	long	The amount of input data in the task. Unit: bytes.	123
State	string	The final execution state of the task. Valid values: FINISHED CANCELED ABORTED FAILED	FINISHED
OperatorCost	long	The total amount of time that is consumed by all operators in the task on a node. This parameter can be used to determine whether long tails occur in computing. Unit: milliseconds.	3
OutputRows	long	The number of output rows in the task.	105
ScanDataSize	long	The amount of scanned data in the task. Unit: bytes.	123
ElapsedTime	long	The amount of time that elapsed from when the task was created to when the task was completed. Unit: milliseconds.	456
ScanRows	long	The number of rows that are scanned from a data source in the task.	0
PeakMemory	long	The peak memory of the task. Unit: bytes.	234
TaskId	string	The task ID.	22568****
InputRows	long	The number of input rows in the task.	105
TaskCreateTime	long	The timestamp when the task was created.	2022-12-12 00:00:12
TaskEndTime	long	The timestamp when the task ends.	2022-12-22 00:00:00
TaskHost	string	The IP address of the host where the task was executed.	192.168.XX.XX
Drivers	string	The number of tasks that can be executed concurrently.	16
QueuedTime	string	The queuing duration of the task. Unit: milliseconds.	12
ComputeTimeRatio	string	The compute time ratio, which can be used to determine whether the task is really time-consuming. This parameter can be calculated by using the following formula: OperatorCost/Drivers/ElapsedTime. A greater value indicates that the task was executed for computing for most of the task time. A less value indicates that the task was waiting for scheduling or blocked due to other reasons for most of the task time.	0.89
TotalCount	integer	The total number of tasks in the stage.	33

Examples

Sample success responses

JSONformat

{
  "RequestId": "F0983B43-B2EC-536A-8791-142B5CF1E9B6",
  "TaskList": [
    {
      "ScanCost": 0,
      "OutputDataSize": 123,
      "InputDataSize": 123,
      "State": "FINISHED",
      "OperatorCost": 3,
      "OutputRows": 105,
      "ScanDataSize": 123,
      "ElapsedTime": 456,
      "ScanRows": 0,
      "PeakMemory": 234,
      "TaskId": "22568****",
      "InputRows": 105,
      "TaskCreateTime": 0,
      "TaskEndTime": 0,
      "TaskHost": "192.168.XX.XX",
      "Drivers": "16",
      "QueuedTime": "12",
      "ComputeTimeRatio": "0.89"
    }
  ],
  "TotalCount": 33
}

Error codes

For a list of error codes, visit the Service error codes.