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From "Dmitry Sivachenko (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-5959) java.lang.ClassCastException during terasort
Date Sun, 06 Jul 2014 15:45:37 GMT
Dmitry Sivachenko created MAPREDUCE-5959:
--------------------------------------------

             Summary: java.lang.ClassCastException during terasort
                 Key: MAPREDUCE-5959
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5959
             Project: Hadoop Map/Reduce
          Issue Type: Bug
    Affects Versions: 2.4.1
         Environment: FreeBSD (seems irrelevant), OpenJDK-7
            Reporter: Dmitry Sivachenko


Hello!

I am running bundled TeraSort program (from hadoop-examples.jar).
Sometimes I get the following exception:

2014-07-06 19:40:59,344 INFO  [main] mapreduce.Job (Job.java:printTaskEvents(1441)) - Task
Id : attempt_1404654366281_0001_m_031223_0, Status : FAILED
Error: java.lang.ClassCastException: org.apache.hadoop.mapreduce.lib.input.FileSplit cannot
be cast to org.apache.hadoop.mapred.InputSplit
        at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:403)
        at org.apache.hadoop.mapred.MapTask.run(MapTask.java:342)
        at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:167)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:415)
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1556)
        at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:162)




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