mapreduce.Job: Task Id : attempt_1473177830264_0002_m_000001_2, Status : FAILED Error: java.lang.ClassNotFoundException: scala.Predef$

Stack Overflow | ajay thompson | 7 months ago
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  1. 0

    Mapreduce using Scala Error: java.lang.ClassNotFoundException: scala.Predef$

    Stack Overflow | 7 months ago | ajay thompson
    mapreduce.Job: Task Id : attempt_1473177830264_0002_m_000001_2, Status : FAILED Error: java.lang.ClassNotFoundException: scala.Predef$
  2. 0

    Setting external jars to hadoop classpath

    tagwith.com | 1 year ago
    mapreduce.Job: Task Id : attempt_1415115532989_0001_m_000001_0, Status : FAILED Error: java.lang. : au.com.bytecode.opencsv.

    Root Cause Analysis

    1. mapreduce.Job

      Task Id : attempt_1473177830264_0002_m_000001_2, Status : FAILED Error: java.lang.ClassNotFoundException: scala.Predef$

      at java.net.URLClassLoader$1.run()
    2. Java RT
      ClassLoader.loadClass
      1. java.net.URLClassLoader$1.run(URLClassLoader.java:366)
      2. java.net.URLClassLoader$1.run(URLClassLoader.java:355)
      3. java.security.AccessController.doPrivileged(Native Method)
      4. java.net.URLClassLoader.findClass(URLClassLoader.java:354)
      5. java.lang.ClassLoader.loadClass(ClassLoader.java:425)
      6. sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
      7. java.lang.ClassLoader.loadClass(ClassLoader.java:358)
      7 frames
    3. mapreduce
      MaxTemperatureMapper.map
      1. mapreduce.MaxTemperatureMapper.map(MaxTemperatureMapper.scala:17)
      2. mapreduce.MaxTemperatureMapper.map(MaxTemperatureMapper.scala:9)
      2 frames
    4. Hadoop
      YarnChild$2.run
      1. org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:146)
      2. org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:787)
      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:415)
      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