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Posted to mapreduce-issues@hadoop.apache.org by "Ravi Gummadi (Created) (JIRA)" <ji...@apache.org> on 2011/12/01 10:25:40 UTC

[jira] [Created] (MAPREDUCE-3492) mapreduce examples jar is not built properly

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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[jira] [Commented] (MAPREDUCE-3492) mapreduce examples jar is not built properly

Posted by "Ravi Gummadi (Commented) (JIRA)" <ji...@apache.org>.
    [ 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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[jira] [Commented] (MAPREDUCE-3492) mapreduce examples jar is not built properly

Posted by "Hitesh Shah (Commented) (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/MAPREDUCE-3492?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13160970#comment-13160970 ] 

Hitesh Shah commented on MAPREDUCE-3492:
----------------------------------------

Wordcount should now be part of hadoop-mapreduce-project/hadoop=mapreduce-examples/ which is now part of the mavenized build. 
                
> 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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