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From "Adam Antal (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-9675) Expose log aggregation diagnostic messages through RM API
Date Mon, 15 Jul 2019 09:56:00 GMT
Adam Antal created YARN-9675:
--------------------------------

             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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