Jian He created YARN-3273:
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Summary: Improve web UI to facilitate scheduling analysis and
debugging
Key: YARN-3273
URL: https://issues.apache.org/jira/browse/YARN-3273
Project: Hadoop YARN
Issue Type: Improvement
Reporter: Jian He
Job may be stuck for reasons such as:
- hitting queue capacity
- hitting user-limit,
- hitting AM-resource-percentage
The first queueCapacity is already shown on the UI.
We may surface things like:
- what is user's current usage and user-limit;
- what is the AM resource usage and limit;
- what is the application's current HeadRoom;
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