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From "Andrew Wang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6454) MapReduce doesn't set the HADOOP_CLASSPATH for jar lib in distributed cache.
Date Tue, 30 Aug 2016 00:04:20 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6454?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15447492#comment-15447492
] 

Andrew Wang commented on MAPREDUCE-6454:
----------------------------------------

Hi folks, I noticed this JIRA is not present in trunk, though Vinod's comment says:

{quote}
Committed this to trunk, branch-2, 2.7 and 2.6. Thanks Junping.
{quote}

Based on the above discussion, I think this was only intended for branch-2 and thus git is
correct, but I would appreciate clarification.

> MapReduce doesn't set the HADOOP_CLASSPATH for jar lib in distributed cache.
> ----------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-6454
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6454
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            Reporter: Junping Du
>            Assignee: Junping Du
>            Priority: Critical
>             Fix For: 2.7.2, 2.6.2
>
>         Attachments: MAPREDUCE-6454-v2.1.patch, MAPREDUCE-6454-v2.patch, MAPREDUCE-6454-v3.1.patch,
MAPREDUCE-6454-v3.patch, MAPREDUCE-6454.patch
>
>
> We already set lib jars on distributed-cache to CLASSPATH. However, in some corner cases
(like: MR local mode, Hive Map side local join, etc.), we need these jars on HADOOP_CLASSPATH
so hadoop scripts can take it in launching runjar process.



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