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From "Roman Shaposhnik (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-3845) hadoop distcp fails to run with java.lang.NoClassDefFoundError
Date Thu, 09 Feb 2012 23:00:57 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3845?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Roman Shaposhnik updated MAPREDUCE-3845:
----------------------------------------

    Priority: Major  (was: Blocker)

Apparently distcp command in mapred launcher script works. Bumping down the priority since
a simple workaround exists.
                
> hadoop distcp fails to run with java.lang.NoClassDefFoundError
> --------------------------------------------------------------
>
>                 Key: MAPREDUCE-3845
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3845
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: distcp
>    Affects Versions: 0.23.1
>            Reporter: Roman Shaposhnik
>            Assignee: Roman Shaposhnik
>             Fix For: 0.23.1
>
>
> Here's how to reproduce:
> {noformat}
> $ cd /tmnp
> $ curl http://people.apache.org/~acmurthy/hadoop-0.23.1-rc0/hadoop-0.23.1.tar.gz | tar
xzvf -
> $ cd hadoop-0.23.1
> $ ./bin/hadoop distcp
> Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/hadoop/tools/DistCp
> Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.tools.DistCp
> 	at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
> 	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
> 	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
> 	at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
> Could not find the main class: org.apache.hadoop.tools.DistCp.  Program will exit.
> {noformat}

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