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From "David Rosenstrauch (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-1938) Ability for having user's classes take precedence over the system classes for tasks' classpath
Date Fri, 13 Aug 2010 14:47:18 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1938?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12898259#action_12898259
] 

David Rosenstrauch commented on MAPREDUCE-1938:
-----------------------------------------------

Just wondering:  does anyone know if Cloudera has plans to include this patch in the CDH any
time soon?

> Ability for having user's classes take precedence over the system classes for tasks'
classpath
> ----------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-1938
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1938
>             Project: Hadoop Map/Reduce
>          Issue Type: New Feature
>          Components: job submission, task, tasktracker
>            Reporter: Devaraj Das
>             Fix For: 0.22.0
>
>         Attachments: mr-1938-bp20.1.patch, mr-1938-bp20.patch
>
>
> It would be nice to have the ability in MapReduce to allow users to specify for their
jobs alternate implementations of classes that are already defined in the MapReduce libraries.
For example, an alternate implementation for CombineFileInputFormat. 

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