Britt Cyr created OOZIE-862:
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Summary: 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: mapOnlyStreaming.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*
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<streaming>
<mapper>mule_perm.pl</mapper>
<reducer>NONE</reducer>
</streaming>
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Or
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<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).
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<configuration>
<property>
<name>mapred.reduce.tasks</name>
<value>0</value>
</property>
...
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