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From "Vinod Kumar Vavilapalli (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-171) NodeManager should serve logs directly if log-aggregation is not enabled
Date Fri, 19 Oct 2012 00:00:03 GMT
Vinod Kumar Vavilapalli created YARN-171:
--------------------------------------------

             Summary: NodeManager should serve logs directly if log-aggregation is not enabled
                 Key: YARN-171
                 URL: https://issues.apache.org/jira/browse/YARN-171
             Project: Hadoop YARN
          Issue Type: Bug
          Components: nodemanager
    Affects Versions: 0.23.3
            Reporter: Vinod Kumar Vavilapalli


NodeManagers never serve logs for completed applications. If log-aggregation is not enabled,
in the interim, due to bugs like YARN-162, this is a serious problem for users as logs are
necessarily not available.

We should let nodes serve logs directly if YarnConfiguration.LOG_AGGREGATION_ENABLED is set.
This should be okay as NonAggregatingLogHandler can retain logs upto YarnConfiguration.NM_LOG_RETAIN_SECONDS.

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