[jira] [Commented] (MAPREDUCE-614) Streaming partitioner should allow command, not just Java class

["Devendra Bhat (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MAPREDUCE-614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16256463#comment-16256463 ] 

Devendra Bhat commented on MAPREDUCE-614:
-----------------------------------------

I don't know most of the thing which you guys were saying but I want to express clearly what thing I want from this partitioner function.

I have been trying to study mapreduce with python and while using python I have to pass the python codes as command.

Can you please implement what you suggested about this "it might be easier to define a suitable partitioner command (when using shell tools it might be easier to output a string instead of a specific number for example),"  as @Klass suggested above.

> Streaming partitioner should allow command, not just Java class
> ---------------------------------------------------------------
>
>                 Key: MAPREDUCE-614
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-614
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: contrib/streaming
>            Reporter: Klaas Bosteels
>
> Since HADOOP-4842 got committed, Streaming allows both commands and Java classes to be specified as mapper, reducer, and combiner, but the {{-partitioner}} option is still limited to Java classes only. Allowing commands to be specified as partitioner as well would greatly improve the flexibility of Streaming programs.



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