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https://issues.apache.org/jira/browse/MAPREDUCE-5807?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14364887#comment-14364887
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Rohith commented on MAPREDUCE-5807:
-----------------------------------
Usage print as below along with configurations
{noformat}
Usage: terasort <in> <out>
TeraSort configurations are:
<mapreduce.terasort.num-rows> Number of rows to generate
<mapreduce.terasort.num.partitions> Number of partitions used for sampling
<mapreduce.terasort.partitions.sample> sampling size
<mapreduce.terasort.final.sync> Wheather to do final sync before the stream
is closed
<mapreduce.terasort.use.terascheduler> Wheather to use tera scheduler
<mapreduce.terasort.simplepartitioner> Wheather to use simple partitioner
<mapreduce.terasort.output.replication> Number of replications to be stored
for output data
{noformat}
> 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
> Attachments: 0001-MAPREDUCE-5807.patch, MAPREDUCE-5807.patch
>
>
> 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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