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From "Devaraj K (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-5959) java.lang.ClassCastException during terasort
Date Sat, 19 Jul 2014 08:26:38 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5959?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14067442#comment-14067442
] 

Devaraj K commented on MAPREDUCE-5959:
--------------------------------------

[~trtrmitya] which version of Hadoop are you using? Can you check whether that version contains
MAPREDUCE-5813 fix or not?

> 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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