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Posted to mapreduce-issues@hadoop.apache.org by "Arun C Murthy (Resolved) (JIRA)" <ji...@apache.org> on 2011/10/30 21:18:34 UTC
[jira] [Resolved] (MAPREDUCE-1938) Ability for having user's
classes take precedence over the system classes for tasks' classpath
[ https://issues.apache.org/jira/browse/MAPREDUCE-1938?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Arun C Murthy resolved MAPREDUCE-1938.
--------------------------------------
Resolution: Fixed
Fix Version/s: 0.20.204.0
Fixed in 0.20.2xx. Not relevant for MR2.
> 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
> Assignee: Krishna Ramachandran
> Priority: Blocker
> Fix For: 0.20.204.0, 0.23.0
>
> Attachments: mapred-1938-1, mapred-1938-2.patch, mapred-1938-3.patch, 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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