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Posted to mapreduce-issues@hadoop.apache.org by "Jason Lowe (JIRA)" <ji...@apache.org> on 2013/07/24 23:45:49 UTC

[jira] [Created] (MAPREDUCE-5417) Propagate task settings to AM when job runs in uber mode

Jason Lowe created MAPREDUCE-5417:
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             Summary: Propagate task settings to AM when job runs in uber mode
                 Key: MAPREDUCE-5417
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5417
             Project: Hadoop Map/Reduce
          Issue Type: Improvement
          Components: mrv2
    Affects Versions: 2.0.4-alpha
            Reporter: Jason Lowe


When a job runs in Uber-AM mode the JVM settings (e.g.: heap sizing), container sizing, and environment variables are not propagated to the AM.  This means running in uber-AM mode is not as simple as enabling {{mapreduce.job.ubertask.enable}} since lack of proper heap/container settings can doom the AM to crash or lack of proper environment variables can prevent the task code from properly running.


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