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https://issues.apache.org/jira/browse/HADOOP-917?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Sami Siren updated HADOOP-917:
------------------------------

    Attachment: sequencefile-npe-test.patch

Attached patch reproduces the NPE in trunk version of hadoop:

java.lang.NullPointerException
        at 
org.apache.hadoop.io.SequenceFile$Sorter$MergeQueue.merge(SequenceFile.java:2392)
        at 
org.apache.hadoop.io.SequenceFile$Sorter.merge(SequenceFile.java:2087)
        at 
org.apache.hadoop.mapred.MapTask$MapOutputBuffer.mergeParts(MapTask.java:498)
        at org.apache.hadoop.mapred.MapTask.run(MapTask.java:191)
        at 
org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:109)


> NPE in org.apache.hadoop.io.SequenceFile$Sorter$MergeQueue
> ----------------------------------------------------------
>
>                 Key: HADOOP-917
>                 URL: https://issues.apache.org/jira/browse/HADOOP-917
>             Project: Hadoop
>          Issue Type: Bug
>          Components: io
>    Affects Versions: 0.10.1
>            Reporter: Sami Siren
>         Attachments: sequencefile-npe-test.patch
>
>
> After nutch started using hadoop 0.10.1 the following Exception started to 
> appear:
> java.lang.NullPointerException
>       at 
> org.apache.hadoop.io.SequenceFile$Sorter$MergeQueue.merge(SequenceFile.java:2158)
>       at 
> org.apache.hadoop.io.SequenceFile$Sorter.merge(SequenceFile.java:1892)
>       at 
> org.apache.hadoop.mapred.MapTask$MapOutputBuffer.mergeParts(MapTask.java:498)
>       at org.apache.hadoop.mapred.MapTask.run(MapTask.java:191)
>       at 
> org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:1367)
> Anyone know the cure?

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