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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4689) JobClient.getMapTaskReports on failed job results in NPE
Date Sat, 29 Sep 2012 12:40:09 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4689?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13466203#comment-13466203
] 

Hudson commented on MAPREDUCE-4689:
-----------------------------------

Integrated in Hadoop-Hdfs-0.23-Build #389 (See [https://builds.apache.org/job/Hadoop-Hdfs-0.23-Build/389/])
    svn merge -c 1391679 FIXES: MAPREDUCE-4689. JobClient.getMapTaskReports on failed job
results in NPE (jlowe via bobby) (Revision 1391681)

     Result = UNSTABLE
bobby : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1391681
Files : 
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/CompletedTask.java
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/test/java/org/apache/hadoop/mapreduce/v2/hs/TestJobHistoryParsing.java

                
> JobClient.getMapTaskReports on failed job results in NPE
> --------------------------------------------------------
>
>                 Key: MAPREDUCE-4689
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4689
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: client
>    Affects Versions: 0.23.3
>            Reporter: Jason Lowe
>            Assignee: Jason Lowe
>             Fix For: 3.0.0, 0.23.4, 2.0.3-alpha
>
>         Attachments: MAPREDUCE-4689.patch
>
>
> When calling JobClient.getMapTaskReports for a job that has failed results in an NPE.
 For example:
> {noformat}
> Exception in thread "main" java.lang.NullPointerException
> 	at org.apache.hadoop.mapreduce.counters.AbstractCounters.<init>(AbstractCounters.java:107)
> 	at org.apache.hadoop.mapred.Counters.<init>(Counters.java:71)
> 	at org.apache.hadoop.mapred.Counters.downgrade(Counters.java:80)
> 	at org.apache.hadoop.mapred.TaskReport.downgrade(TaskReport.java:81)
> 	at org.apache.hadoop.mapred.TaskReport.downgradeArray(TaskReport.java:88)
> 	at org.apache.hadoop.mapred.JobClient.getTaskReports(JobClient.java:691)
> 	at org.apache.hadoop.mapred.JobClient.getMapTaskReports(JobClient.java:681)
> ...
> {noformat}

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