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From "Vinod Kumar Vavilapalli (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3087) CLASSPATH not the same after MAPREDUCE-2880
Date Tue, 18 Oct 2011 16:41:11 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3087?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13129846#comment-13129846
] 

Vinod Kumar Vavilapalli commented on MAPREDUCE-3087:
----------------------------------------------------

I've been conveniently ignoring this all this while.

mr-generated-classpath needs to be automatically generated. And it(its content) is tied to
the app module (hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/pom.xml).
We cannot check-in some version of it; if something changes in app module, this file(and/or
the test-jar) needs to change and thus is unmaintainable.

So we should only add the real-app jar as the dependency. We only need it to be present for
jobclient module which uses the setFrameWorkClasspath() util, which already is there.

So in sum, your patch without any pom changes should work for you, I think. Shouldn't it?
                
> CLASSPATH not the same after MAPREDUCE-2880
> -------------------------------------------
>
>                 Key: MAPREDUCE-3087
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3087
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 0.23.0
>            Reporter: Ravi Prakash
>            Assignee: Ravi Prakash
>            Priority: Critical
>             Fix For: 0.23.0
>
>         Attachments: MAPREDUCE-3087.patch, MAPREDUCE-3087.patch, MAPREDUCE-3087.patch,
MAPREDUCE-3087.patch, notworking.classpath.uniq, test-mr-app.jar, working.classpath.uniq
>
>
> After MAPREDUCE-2880, my classpath was missing key jar files. 

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