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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4740) only .jars can be added to the Distributed Cache classpath
Date Mon, 22 Oct 2012 19:40:13 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13481710#comment-13481710
] 

Jason Lowe commented on MAPREDUCE-4740:
---------------------------------------

+1, lgtm.  I'll commit this shortly.
                
> only .jars can be added to the Distributed Cache classpath
> ----------------------------------------------------------
>
>                 Key: MAPREDUCE-4740
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4740
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 0.23.3, 2.0.2-alpha
>            Reporter: Robert Joseph Evans
>            Assignee: Robert Joseph Evans
>            Priority: Blocker
>         Attachments: MR-4740.txt, MR-4740.txt, MR-4740.txt, MR-4740.txt
>
>
> Koji tracked down this one.
> {noformat}
> $ cat mycat.sh
> #!/bin/sh
> cat >& /dev/null
> $JAVA_HOME/bin/jinfo $PPID | grep java.class.path
> export | grep CLASSPATH
> ls -l 
> $ myfile=/user/me/myclasses.zip; yarn jar
> hadoop-streaming.jar
> -Dmapreduce.job.cache.archives=hdfs:///${myfile}
> -Dmapreduce.job.classpath.archives=${myfile} -input in.txt -output out -reducer NONE
-mapper mycat.sh  -file mycat.sh
> {noformat}
> So, cachearchive like class.zip or class.tar.gz were never set as part of the
> classpath even though they were properly set by DistributedCache.addArchiveToClassPath.
> It looks like we are parsing the classpath out of the configs, but then throwing that
away.  It looks simple enough to add them in the correct place.

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