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From "Siddharth Seth (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-3713) Incorrect headroom reported to jobs
Date Tue, 24 Jan 2012 01:55:39 GMT
Incorrect headroom reported to jobs

                 Key: MAPREDUCE-3713
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3713
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: mrv2, resourcemanager
    Affects Versions: 0.23.0
            Reporter: Siddharth Seth
            Priority: Blocker

With multiple jobs submitted per user, and multiple users submitting jobs - the headroom reported
to the AppMasters is incorrect (very high).
Leads to a deadlock - reduces started, map tasks not complete... and reduces are not preempted
by the AM due to the incorrect headroom.

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