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From "Robert Joseph Evans (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-3521) Hadoop Streaming ignores unknown commands
Date Thu, 08 Dec 2011 22:13:40 GMT
Hadoop Streaming ignores unknown commands

                 Key: MAPREDUCE-3521
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3521
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: mrv2
    Affects Versions: 0.23.0
            Reporter: Robert Joseph Evans
            Assignee: Robert Joseph Evans
            Priority: Minor

The hadoop streaming command will ignore any command line arguments to it.

hadoop jar streaming.jar -input input -output output -mapper cat -reducer cat ThisIsABadArgument

Works just fine.  This can mask issues where quotes were mistakenly missed like

hadoop jar streaming.jar -input input -output output -mapper xargs cat -reducer cat -archive

Streaming should fail if it encounters an unexpected command line parameter

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