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Date: Sun, 9 Nov 2008 18:12:44 -0800 (PST)
From: "Edward J. Yoon (JIRA)" <jira@apache.org>
To: core-dev@hadoop.apache.org
Subject: [jira] Updated: (HADOOP-4608) Examples -Driver does not check first
 argument.
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     [ https://issues.apache.org/jira/browse/HADOOP-4608?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Edward J. Yoon updated HADOOP-4608:
-----------------------------------

    Fix Version/s: 0.20.0
                   0.19.1

Current trunk also affected.

> Examples -Driver does not check first argument.
> -----------------------------------------------
>
>                 Key: HADOOP-4608
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4608
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: examples
>    Affects Versions: 0.18.2
>            Reporter: Edward J. Yoon
>            Assignee: Edward J. Yoon
>             Fix For: 0.18.3, 0.19.1, 0.20.0
>
>         Attachments: HADOOP-4608.patch
>
>
> hadoop@vldb ~/hadoop $ bin/hadoop jar hadoop-0.18.2-examples.jar 
> An example program must be given as the first argument.
> Valid program names are:
>   aggregatewordcount: An Aggregate based map/reduce program that counts the words in the input files.
>   aggregatewordhist: An Aggregate based map/reduce program that computes the histogram of the words in the input files.
>   grep: A map/reduce program that counts the matches of a regex in the input.
>   join: A job that effects a join over sorted, equally partitioned datasets
>   multifilewc: A job that counts words from several files.
>   pentomino: A map/reduce tile laying program to find solutions to pentomino problems.
>   pi: A map/reduce program that estimates Pi using monte-carlo method.
>   randomtextwriter: A map/reduce program that writes 10GB of random textual data per node.
>   randomwriter: A map/reduce program that writes 10GB of random data per node.
>   sleep: A job that sleeps at each map and reduce task.
>   sort: A map/reduce program that sorts the data written by the random writer.
>   sudoku: A sudoku solver.
>   wordcount: A map/reduce program that counts the words in the input files.
> java.lang.IllegalArgumentException: An example program must be given as the first argument.
>         at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:123)
>         at org.apache.hadoop.examples.ExampleDriver.main(ExampleDriver.java:54)
>         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:155)
>         at org.apache.hadoop.mapred.JobShell.run(JobShell.java:54)
>         at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
>         at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
>         at org.apache.hadoop.mapred.JobShell.main(JobShell.java:68)

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