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https://issues.apache.org/jira/browse/MAPREDUCE-5959?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14068357#comment-14068357
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Dmitry Sivachenko commented on MAPREDUCE-5959:
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I was using 2.4.1. Since fix from MAPREDUCE-5813 was included into 2.4.0, I
think it does not relate to my problem.
> 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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