org.apache.hadoop.mapred.TaskInProgress: Error from attempt_201302251437_0004_m_000001_0: java.lang.RuntimeException: java.lang.ClassNotFoundException: net.petrikainulainen.spring.data.apachehadoop.WordMapper

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    Root Cause Analysis

    1. org.apache.hadoop.mapred.TaskInProgress

      Error from attempt_201302251437_0004_m_000001_0: java.lang.RuntimeException: java.lang.ClassNotFoundException: net.petrikainulainen.spring.data.apachehadoop.WordMapper

      at org.apache.hadoop.conf.Configuration.getClass()
    2. Hadoop
      Configuration.getClass
      1. org.apache.hadoop.conf.Configuration.getClass(Configuration.java:867)
      1 frame
    3. Hadoop
      Child$4.run
      1. org.apache.hadoop.mapreduce.JobContext.getMapperClass(JobContext.java:199)
      2. org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:719)
      3. org.apache.hadoop.mapred.MapTask.run(MapTask.java:370)
      4. org.apache.hadoop.mapred.Child$4.run(Child.java:255)
      4 frames
    4. Java RT
      Subject.doAs
      1. java.security.AccessController.doPrivileged(Native Method)
      2. javax.security.auth.Subject.doAs(Subject.java:415)
      2 frames
    5. Hadoop
      UserGroupInformation.doAs
      1. org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1121)
      1 frame
    6. Hadoop
      Child.main
      1. org.apache.hadoop.mapred.Child.main(Child.java:249)
      1 frame