java.lang.NullPointerException

Stack Overflow | Dayanand | 8 months ago
tip
Your exception is missing from the Samebug knowledge base.
Here are the best solutions we found on the Internet.
Click on the to mark the helpful solution and get rewards for you help.
  1. 0

    Hadoop: Using a Custom Object in a Mapper's Output

    Stack Overflow | 3 years ago | David Beveridge
    java.lang.NullPointerException
  2. 0

    Hadoop: NullPointerException when calling getFsStatistics

    Stack Overflow | 2 years ago
    java.lang.NullPointerException
  3. Speed up your debug routine!

    Automated exception search integrated into your IDE

  4. 0

    getting java.lang.NullPointerException hadoop map-reduce program

    Stack Overflow | 2 years ago | user3518005
    java.lang.NullPointerException
  5. 0

    GitHub comment 560#144067195

    GitHub | 2 years ago | boliza
    java.lang.NullPointerException

  1. Eli 1 times, last 1 year ago
1 unregistered visitors
Not finding the right solution?
Take a tour to get the most out of Samebug.

Tired of useless tips?

Automated exception search integrated into your IDE

Root Cause Analysis

  1. java.lang.NullPointerException

    No message provided

    at org.apache.hadoop.mapred.MapTask$TrackedRecordReader.close()
  2. Hadoop
    YarnChild$2.run
    1. org.apache.hadoop.mapred.MapTask$TrackedRecordReader.close(MapTask.java:210)
    2. org.apache.hadoop.mapred.MapTask.closeQuietly(MapTask.java:1976)
    3. org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:468)
    4. org.apache.hadoop.mapred.MapTask.run(MapTask.java:343)
    5. org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164)
    5 frames
  3. Java RT
    Subject.doAs
    1. java.security.AccessController.doPrivileged(Native Method)
    2. javax.security.auth.Subject.doAs(Subject.java:415)
    2 frames
  4. Hadoop
    UserGroupInformation.doAs
    1. org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1693)
    1 frame
  5. Hadoop
    YarnChild.main
    1. org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)
    1 frame