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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-7118) Distributed cache conflicts breaks backwards compatability
Date Tue, 03 Jul 2018 19:45:00 GMT
Jason Lowe created MAPREDUCE-7118:

             Summary: Distributed cache conflicts breaks backwards compatability
                 Key: MAPREDUCE-7118
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-7118
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: mrv2
    Affects Versions: 3.1.0, 3.0.0, 3.2.0
            Reporter: Jason Lowe
            Assignee: Jason Lowe

MAPREDUCE-4503 made distributed cache conflicts break job submission, but this was quickly
downgraded to a warning in MAPREDUCE-4549.  Unfortunately the latter did not go into trunk,
so the fix is only in 0.23 and 2.x.  When Oozie, Pig, and other downstream projects that can
occasionally generate distributed cache conflicts move to Hadoop 3.x the workflows that used
to work on 0.23 and 2.x no longer function.

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