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From "Rohith (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-5807) Print usage for TeraSort job.
Date Mon, 24 Mar 2014 10:30:45 GMT
Rohith created MAPREDUCE-5807:
---------------------------------

             Summary: Print usage for TeraSort job.
                 Key: MAPREDUCE-5807
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5807
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: examples
            Reporter: Rohith
            Assignee: Rohith
            Priority: Trivial


For new to hadoop, try for getting help mesage for examples jobs provided in mapreduce. These
Usage helps them in providing arguements.


terasort job execution does not print Usage message instead throw exception.

./yarn jar ../share/hadoop/mapreduce/hadoop-mapreduce-examples-*.jar terasort
14/03/24 15:34:55 INFO terasort.TeraSort: starting
java.lang.ArrayIndexOutOfBoundsException: 0
        at org.apache.hadoop.examples.terasort.TeraSort.run(TeraSort.java:283)
        at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
        at org.apache.hadoop.examples.terasort.TeraSort.main(TeraSort.java:325)
        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:597)
        at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:72)
        at org.apache.hadoop.util.ProgramDriver.run(ProgramDriver.java:144)
        at org.apache.hadoop.examples.ExampleDriver.main(ExampleDriver.java:74)
        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:597)
        at org.apache.hadoop.util.RunJar.main(RunJar.java:212)




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