Adam Antal created YARN-9675:
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Summary: Expose log aggregation diagnostic messages through RM API
Key: YARN-9675
URL: https://issues.apache.org/jira/browse/YARN-9675
Project: Hadoop YARN
Issue Type: Improvement
Components: api, log-aggregation, resourcemanager
Affects Versions: 3.2.0
Reporter: Adam Antal
The ResourceManager collects the log aggregation status reports from the
NodeManagers. Currently these reports are collected, but when app info API or
similar high-level REST is called, only an overall status is displayed
(RUNNING, RUNNING_WITH_FAILURES,FAILED etc.).
The diagnostic messages are only available through the old RM web UI, so our
internal tool currently crawls that page and extract the log aggregation
diagnostic and error messages from the raw HTML. This is not a good practice,
and more elegant API call may be preferable. It may be useful for others as
well since log aggregation related failures are usually hard to debug since the
lack of trace/debug messages.
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