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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HADOOP-1675) Null pointer exception in InMemoryFileSystem
Date Wed, 22 Apr 2009 00:49:47 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-1675?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tsz Wo (Nicholas), SZE resolved HADOOP-1675.
--------------------------------------------

    Resolution: Won't Fix

InMemoryFileSystem was removed.  See HADOOP-4648.

> Null pointer exception in InMemoryFileSystem
> --------------------------------------------
>
>                 Key: HADOOP-1675
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1675
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.13.0
>            Reporter: Runping Qi
>            Priority: Minor
>
> In a job running release .13, I saw a lot of failures due to the following errors:
> 2007-08-03 16:13:39,516 ERROR org.apache.hadoop.mapred.ReduceTask: Map output copy failure:
java.lang.NullPointerException
> 	at org.apache.hadoop.fs.InMemoryFileSystem$RawInMemoryFileSystem.reserveSpace(InMemoryFileSystem.java:361)
> 	at org.apache.hadoop.fs.InMemoryFileSystem.reserveSpaceWithCheckSum(InMemoryFileSystem.java:474)
> 	at org.apache.hadoop.mapred.MapOutputLocation.getFile(MapOutputLocation.java:220)
> 	at org.apache.hadoop.mapred.ReduceTask$ReduceCopier$MapOutputCopier.copyOutput(ReduceTask.java:680)
> 	at org.apache.hadoop.mapred.ReduceTask$ReduceCopier$MapOutputCopier.run(ReduceTask.java:641)

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