[jira] [Updated] (MAPREDUCE-1938) Ability for having user's classes take precedence over the system classes for tasks' classpath

["Harsh J (Updated) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MAPREDUCE-1938?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Harsh J updated MAPREDUCE-1938:
-------------------------------

    Fix Version/s:     (was: 0.23.0)

This isn't present in 0.23. Removing from Fix Version. I'll take Arun's word that it is not needed there either (though it'd look like API breakage, hrm?)

It should be included in 0.22 though.
                
> 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
>
>         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. 

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira