Szilard Nemeth created YARN-10323:
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Summary: [Umbrella] YARN Debuggability and Supportability
Improvements
Key: YARN-10323
URL: https://issues.apache.org/jira/browse/YARN-10323
Project: Hadoop YARN
Issue Type: Improvement
Reporter: Szilard Nemeth
Troubleshooting YARN problems can be difficult on a production environment.
Collecting data before problems occur or actively collecting data in an
on-demand basis could truly help tracking down issues.
Some examples:
1. If application is hanging, application logs along with RM / NM logs could be
collected, plus jstack of either the YARN daemons or the application container.
2. Similarly, when an application fails we may collect data.
3. Scheduler issues are quite common so good tooling that helps to spot issues
would be crucial.
Design document will be added later.
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