org.apache.hadoop.mapred.YarnChild: Error running child : java.lang.NoClassDefFoundError: org/apache/kylin/common/mr/KylinMapper

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    Root Cause Analysis

    1. java.lang.ClassNotFoundException

      org.apache.kylin.common.mr.KylinMapper

      at java.net.URLClassLoader.findClass()
    2. Java RT
      Class.forName
      1. java.net.URLClassLoader.findClass(URLClassLoader.java:381)
      2. java.lang.ClassLoader.loadClass(ClassLoader.java:424)
      3. sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
      4. java.lang.ClassLoader.loadClass(ClassLoader.java:357)
      5. java.lang.ClassLoader.defineClass1(Native Method)
      6. java.lang.ClassLoader.defineClass(ClassLoader.java:760)
      7. java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
      8. java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
      9. java.net.URLClassLoader.access$100(URLClassLoader.java:73)
      10. java.net.URLClassLoader$1.run(URLClassLoader.java:368)
      11. java.net.URLClassLoader$1.run(URLClassLoader.java:362)
      12. java.security.AccessController.doPrivileged(Native Method)
      13. java.net.URLClassLoader.findClass(URLClassLoader.java:361)
      14. java.lang.ClassLoader.loadClass(ClassLoader.java:424)
      15. sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
      16. java.lang.ClassLoader.loadClass(ClassLoader.java:357)
      17. java.lang.Class.forName0(Native Method)
      18. java.lang.Class.forName(Class.java:348)
      18 frames
    3. Hadoop
      Configuration.getClass
      1. org.apache.hadoop.conf.Configuration.getClassByNameOrNull(Configuration.java:2134)
      2. org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:2099)
      3. org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2193)
      3 frames
    4. Hadoop
      YarnChild$2.run
      1. org.apache.hadoop.mapreduce.task.JobContextImpl.getMapperClass(JobContextImpl.java:186)
      2. org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:745)
      3. org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
      4. org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164)
      4 frames
    5. Java RT
      Subject.doAs
      1. java.security.AccessController.doPrivileged(Native Method)
      2. javax.security.auth.Subject.doAs(Subject.java:422)
      2 frames
    6. Hadoop
      UserGroupInformation.doAs
      1. org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
      1 frame
    7. Hadoop
      YarnChild.main
      1. org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)
      1 frame