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https://issues.apache.org/jira/browse/MAPREDUCE-5807?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Harsh J updated MAPREDUCE-5807:
-------------------------------
Attachment: 0002-MAPREDUCE-5807.patch
Thanks Rohith! The changes appear right. I've refined your patch a bit to
further constant-ise defaults used in the config-getters, and have corrected
some wording. Here's now it now appears:
{code}
Usage: terasort [-Dproperty=value] <in> <out>
TeraSort configurations are:
<mapreduce.terasort.num-rows> Number of rows to generate during teragen.
<mapreduce.terasort.num.partitions> Number of partitions used for sampling.
<mapreduce.terasort.partitions.sample> Sample size for each partition.
<mapreduce.terasort.final.sync> Perform a disk-persisting hsync at end of
every file-write.
<mapreduce.terasort.use.terascheduler> Use TeraScheduler for computing
input split distribution.
<mapreduce.terasort.simplepartitioner> Use SimplePartitioner instead of
TotalOrderPartitioner.
<mapreduce.terasort.output.replication> Replication factor to use for
output data files.
{code}
Let me know if the changes look good to you.
+1 generally, will commit after jenkins run.
> 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, 0002-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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