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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-7118) Distributed cache conflicts breaks backwards compatability
Date Thu, 19 Jul 2018 21:29:00 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-7118?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16549891#comment-16549891
] 

Hudson commented on MAPREDUCE-7118:
-----------------------------------

FAILURE: Integrated in Jenkins build Hadoop-trunk-Commit #14596 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/14596/])
MAPREDUCE-7118. Distributed cache conflicts breaks backwards (wangda: rev b3b4d4ccb53fdf8dacc66e912822b34f8b3bf215)
* (edit) hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapreduce/v2/util/LocalResourceBuilder.java
* (edit) hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/test/java/org/apache/hadoop/mapreduce/v2/util/TestMRApps.java


> 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: 3.0.0, 3.1.0, 3.2.0
>            Reporter: Jason Lowe
>            Assignee: Jason Lowe
>            Priority: Blocker
>         Attachments: MAPREDUCE-7118.001.patch
>
>
> 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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