[HADOOP-12730] Hadoop streaming -mapper and -reducer options are wrongly documented as required

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Component/s: documentation
• Labels: newbie streaming
• Hadoop Flags: Reviewed
• Assignee: Kengo Seki
• Reporter: DeepakVohra
• Created: 19/Dec/14 15:09
• Updated: 30/Aug/16 01:19
• Resolved: 22/Jan/16 12:13

Description

-reducer is listed as a Required option, but is a -reducer still required if the Streaming job is Map only?

http://hadoop.apache.org/docs/r1.2.1/streaming.html#Specifying+Map-Only+Jobs

-reducer should not be listed as a Required option.