[jira] [Commented] (OOZIE-862) In Map-only Streaming (reducer=NONE), oozie runs reducer along with mapper(s).

["Mona Chitnis (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/OOZIE-862?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13396180#comment-13396180 ] 

Mona Chitnis commented on OOZIE-862:
------------------------------------

How is the second case (below) getting handled because of this change?

<streaming>
<mapper>mule_perm.pl</mapper>
</streaming>
                
> In Map-only Streaming (reducer=NONE), oozie runs reducer along with mapper(s).
> ------------------------------------------------------------------------------
>
>                 Key: OOZIE-862
>                 URL: https://issues.apache.org/jira/browse/OOZIE-862
>             Project: Oozie
>          Issue Type: Improvement
>            Reporter: Britt Cyr
>            Priority: Minor
>         Attachments: OOZIE-862.patch
>
>
> Oozie runs map-only streaming job with reducer, which is not intended.
> It always creates reducer when I give any of the following in *workflow.xml*
> --------------------------------------------
> <streaming>
>     <mapper>mule_perm.pl</mapper>
>     <reducer>NONE</reducer>
> </streaming>
> --------------------------------------------
> Or
> --------------------------------------------
> <streaming>
>     <mapper>mule_perm.pl</mapper>
> </streaming>
> --------------------------------------------
> No reducer is created only when, I give following in *workflow.xml* as
> configuration. (which is not intuitive/matching with hadoop jar streaming
> command).
> ------------------------------------------
>     <configuration>
>         <property>
>             <name>mapred.reduce.tasks</name>
>             <value>0</value>
>         </property>
>     ...
> ------------------------------------------

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