Hadoop Map/Reduce
  1. Hadoop Map/Reduce
  2. MAPREDUCE-3492

mapreduce examples jar is not built properly

    Details

    • Type: Bug Bug
    • Status: Open
    • Priority: Major Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: examples
    • Labels:
      None

      Description

      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)

        Issue Links

          Activity

          Hide
          Ravi Gummadi added a comment -

          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 ?

          Show
          Ravi Gummadi added a comment - 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 ?
          Hide
          Hitesh Shah added a comment -

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

          Show
          Hitesh Shah added a comment - Wordcount should now be part of hadoop-mapreduce-project/hadoop=mapreduce-examples/ which is now part of the mavenized build.

            People

            • Assignee:
              Unassigned
              Reporter:
              Ravi Gummadi
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              Dates

              • Created:
                Updated:

                Development