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From "Karam Singh (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (MAPREDUCE-617) Streaming should not throw java.lang.RuntimeException and ERROR while displaying help
Date Fri, 18 Jun 2010 10:57:24 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-617?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Karam Singh resolved MAPREDUCE-617.
-----------------------------------

    Fix Version/s: 0.20.2
       Resolution: Fixed

Now Streaming does not throw java.lang.RuntimeException and ERROR while displaying help in
Hadoop. 02.0.2. So marking it as resolved fixed 


> Streaming should not throw java.lang.RuntimeException and ERROR while displaying help
> -------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-617
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-617
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: contrib/streaming
>            Reporter: Karam Singh
>            Priority: Minor
>             Fix For: 0.20.2
>
>
> Run streaming command as -:
> bin/hadoop jar contrib/streaming/hadoop-*-streaming.jar -help 
> it will dislay following -:
> ERROR streaming.StreamJob: Missing required option -input
> Usage: $HADOOP_HOME/bin/hadoop [--config dir] jar \
>           $HADOOP_HOME/hadoop-streaming.jar [options]
> Options:
>   -input    <path>     DFS input file(s) for the Map step
>   -output   <path>     DFS output directory for the Reduce step
>   -mapper   <cmd|JavaClassName>      The streaming command to run
>   -combiner <JavaClassName> Combiner has to be a Java class
>   -reducer  <cmd|JavaClassName>      The streaming command to run
>   -file     <file>     File/dir to be shipped in the Job jar file
>   -dfs    <h:p>|local  Optional. Override DFS configuration
>   -jt     <h:p>|local  Optional. Override JobTracker configuration
>   -additionalconfspec specfile  Optional.
>   -inputformat TextInputFormat(default)|SequenceFileAsTextInputFormat|JavaClassName Optional.
>   -outputformat TextOutputFormat(default)|JavaClassName  Optional.
>   -partitioner JavaClassName  Optional.
>   -numReduceTasks <num>  Optional.
>   -inputreader <spec>  Optional.
>   -jobconf  <n>=<v>    Optional. Add or override a JobConf property
>   -cmdenv   <n>=<v>    Optional. Pass env.var to streaming commands
>   -mapdebug <path>  Optional. To run this script when a map task fails
>   -reducedebug <path>  Optional. To run this script when a reduce task fails
>   -cacheFile fileNameURI
>   -cacheArchive fileNameURI
>   -verbose
> For more details about these options:
> Use $HADOOP_HOME/bin/hadoop jar build/hadoop-streaming.jar -info
> Exception in thread "main" java.lang.RuntimeException:
>         at org.apache.hadoop.streaming.StreamJob.fail(StreamJob.java:542)
>         at org.apache.hadoop.streaming.StreamJob.exitUsage(StreamJob.java:481)
>         at org.apache.hadoop.streaming.StreamJob.parseArgv(StreamJob.java:203)
>         at org.apache.hadoop.streaming.StreamJob.go(StreamJob.java:105)
>         at org.apache.hadoop.streaming.HadoopStreaming.main(HadoopStreaming.java:33)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:585)
>         at org.apache.hadoop.util.RunJar.main(RunJar.java:155)
> It should not display execption and -input and error about missin -input option 

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