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From "Ravi Gummadi (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3492) mapreduce examples jar is not built properly
Date Fri, 02 Dec 2011 07:35:40 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3492?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13161468#comment-13161468
] 

Ravi Gummadi commented on MAPREDUCE-3492:
-----------------------------------------

OK. Found the proper jar in hadoop-mapreduce-project/hadoop-mapreduce-examples/target/. Should
the "examples" target be removed from hadoop-mapreduce-project/build.xml ?
                
> mapreduce examples jar is not built properly
> --------------------------------------------
>
>                 Key: MAPREDUCE-3492
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3492
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: examples
>            Reporter: Ravi Gummadi
>
> When I try to build examples jar using "ant -Dresolvers=internal examples" in trunk,
the jar created in build/ directory is of very small size, may be empty jar. And trying to
run wordcount job gives the error:
> Exception in thread "main" java.lang.ClassNotFoundException: org.apache.hadoop.examples.ExampleDriver
>         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:307)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
>         at java.lang.Class.forName0(Native Method)
>         at java.lang.Class.forName(Class.java:247)
>         at org.apache.hadoop.util.RunJar.main(RunJar.java:193)

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