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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4421) Remove dependency on deployed MR jars
Date Tue, 10 Jul 2012 13:20:34 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13410325#comment-13410325
] 

Arun C Murthy commented on MAPREDUCE-4421:
------------------------------------------

In particular we should remove $YARN_HOME/share/hadoop/mapreduce/* and $YARN_HOME/share/hadoop/mapreduce/lib/*
from YARN_APPLICATION_CLASSPATH.
                
> Remove dependency on deployed MR jars
> -------------------------------------
>
>                 Key: MAPREDUCE-4421
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4421
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>    Affects Versions: 2.0.0-alpha
>            Reporter: Arun C Murthy
>            Assignee: Arun C Murthy
>
> Currently MR AM depends on MR jars being deployed on all nodes via implicit dependency
on YARN_APPLICATION_CLASSPATH. 
> We should stop adding mapreduce jars to YARN_APPLICATION_CLASSPATH and, probably, just
rely on adding a shaded MR jar along with job.jar to the dist-cache.

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