[MAPREDUCE-3630] NullPointerException running teragen

• Type: Task
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 0.23.0
• Fix Version/s: 0.23.1
• Component/s: mrv2
• Hadoop Flags: Reviewed
• Release Note: Committed to trunk and branch-0.23. Thanks Mahadev.
• Assignee: Mahadev Konar
• Reporter: Amol Kekre
• Created: 06/Jan/12 02:28
• Updated: 05/Mar/12 02:48
• Resolved: 25/Jan/12 06:31

Description

CMD = /grid/0/gs/gridre/yroot.omegab/share/hadoopcommon/bin/hadoop --config /grid/0/gs/gridre/yroot.omegab/conf/hadoop/
jar /grid/0/gs/gridre/yroot.omegab/share/hadoopmapred/hadoop-mapreduce-examples-*.jar teragen
-Dmapred.job.queue.name=audience -Dmapreduce.job.acl-view-job=* -Dyarn.app.mapreduce.am.staging-dir=/user
-Dmapreduce.jobtracker.staging.root.dir=/user 1 teraInputDir

Error:
11/09/21 21:59:59 INFO mapreduce.Job: map 50% reduce 0%
11/09/21 22:00:00 INFO mapreduce.Job: Task Id : attempt_1316132655177_0533_m_000001_0, Status : FAILED
java.lang.NullPointerException
at org.apache.hadoop.examples.terasort.TeraGen$SortGenMapper.cleanup(TeraGen.java:241)
at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:146)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:708)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:325)
at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:148)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1135)
at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:143)

11/09/21 22:00:00 WARN mapreduce.Job: Error reading task output Server returned HTTP response code: 400 for URL: http://.../tasklog?plaintext=true&attemptid=attempt_1316132655177_0533_m_000001_0&filter=stdout
11/09/21 22:00:00 WARN mapreduce.Job: Error reading task output Server returned HTTP response code: 400 for URL: http://.../tasklog?plaintext=true&attemptid=attempt_1316132655177_0533_m_000001_0&filter=stderr