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Posted to mapreduce-issues@hadoop.apache.org by "Radim Kolar (JIRA)" <ji...@apache.org> on 2012/08/02 05:56:03 UTC

[jira] [Commented] (MAPREDUCE-4068) Jars in lib subdirectory of the submittable JAR are not added to the classpath

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4068?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13427096#comment-13427096 ] 

Radim Kolar commented on MAPREDUCE-4068:
----------------------------------------

I do not see it either. Its major problem while migrating from mrv1. Libs in lib/ are used only in hadoop driver during job submission, but not in map/reduce YarnChild.java
                
> Jars in lib subdirectory of the submittable JAR are not added to the classpath
> ------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-4068
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4068
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 0.23.1
>            Reporter: Ahmed Radwan
>             Fix For: 0.23.2
>
>
> Prior to hadoop 0.23, users could add third party jars to the lib subdirectory of the submitted job jar and they become available in the task's classpath. I see this functionality was in TaskRunner.java, but I can't see similar functionality in hadoop 0.23 (neither in MapReduceChildJVM.java nor other places).

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