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From "Devaraj K (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4123) ./mapred groups gives NoClassDefFoundError
Date Tue, 22 May 2012 04:39:41 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13280714#comment-13280714
] 

Devaraj K commented on MAPREDUCE-4123:
--------------------------------------

{code:xml}
-1 tests included. The patch doesn't appear to include any new or modified tests.
Please justify why no new tests are needed for this patch.
Also please list what manual steps were performed to verify this patch.
{code}

It is script change hence no tests needed and verified manually.
                
> ./mapred groups gives NoClassDefFoundError
> ------------------------------------------
>
>                 Key: MAPREDUCE-4123
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4123
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 2.0.0, 3.0.0
>            Reporter: Nishan Shetty
>            Assignee: Devaraj K
>            Priority: Critical
>         Attachments: MAPREDUCE-4123.patch
>
>
> linux-168:/home/v2/hadoop-3.0.0-SNAPSHOT/bin # ./mapred groups
> Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/hadoop/mapred/tools/GetGroups
> Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.mapred.tools.GetGroups
>         at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:303)
>         at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
>         at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:316)
> Could not find the main class: org.apache.hadoop.mapred.tools.GetGroups.  Program will
exit.

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