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Posted to yarn-issues@hadoop.apache.org by "Varun Vasudev (JIRA)" <ji...@apache.org> on 2014/11/25 17:03:12 UTC

[jira] [Created] (YARN-2901) Add errors and warning stats to RM, NM web UI

Varun Vasudev created YARN-2901:
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             Summary: Add errors and warning stats to RM, NM web UI
                 Key: YARN-2901
                 URL: https://issues.apache.org/jira/browse/YARN-2901
             Project: Hadoop YARN
          Issue Type: New Feature
          Components: nodemanager, resourcemanager
            Reporter: Varun Vasudev
            Assignee: Varun Vasudev


It would be really useful to have statistics on the number of errors and warnings in the RM and NM web UI. I'm thinking about -
1. The number of errors and warnings in the past 5 min/1 hour/12 hours/day
2. The top 'n'(20?) most common exceptions in the past 5 min/1 hour/12 hours/day

By errors and warnings I'm referring to the log level.

I suspect we can probably achieve this by writing a custom appender?(I'm open to suggestions on alternate mechanisms for implementing this).



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