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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (MAPREDUCE-4689) JobClient.getMapTaskReports on failed job results in NPE
Date Thu, 11 Oct 2012 17:50:07 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-4689?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arun C Murthy closed MAPREDUCE-4689.
------------------------------------

    
> 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, 2.0.2-alpha, 0.23.4
>
>         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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