Yarn Application Tracking
Choose the instance you need to operate, and click the “Yarn Application” button to enter the Yarn Application tracking page and query Yarn Application information at a specified time.
The information of the last 15 days is displayed by default, and you can set the time range for the query as needed.
For MapReduce, Spark type Application, you can check the logs of subtasks and Application Master.
Currently, it does not support viewing details of other types of Applications.
Explanation of Yarn Application status:
| Status | Explanation |
|---|---|
| NEW | After the Application requests to the ID and available resources, the status is NEW |
| NEW SAVING | After the Resource Manager receives the detailed resource request of the Application, the status is NEW SAVING |
| SUBMITTED | After the Resource Manager stores Job information, the status is SUBMITTED |
| ACCEPTED | The Resource Manager’s Scheduler conducts resource, user authority verification, and the status is ACCEPTED after verification passes |
| RUNNING | The resources are ready, and the application is started |
| FINISHED | The Job is successfully executed as scheduled, and the status is FINISHED |
| FAILED | Execution failed |
| KILLED | The Job was terminated by the user |
Subtask Query
Choose a specified Application, click the application ID to query the corresponding subtask information as follows:
Clicking on Task information can get task running record information as follows:
In the log column, you can click stdout, stderr, or syslog to obtain different types of log information:
Note: Only completed tasks can query logs.
Application Master Details
Choose a specified Application, click “Application Master Details” to query all task running record information as follows:
In the log column, you can click stdout, stderr, or syslog to obtain different types of log information:
Note: Only completed tasks can query logs.