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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HADOOP-1895) sort fails with OutOfMemoryExceptions
Date Mon, 17 Sep 2007 08:14:32 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-1895?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arun C Murthy resolved HADOOP-1895.
-----------------------------------

    Resolution: Invalid

The OOM Exceptions were due to a configuration mistake of specifying mapred.child.java.opts
 in mapred-default.xml (post HADOOP-785), once fixed the sort benchmarks didn't exhibit this
behaviour.

> sort fails with OutOfMemoryExceptions
> -------------------------------------
>
>                 Key: HADOOP-1895
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1895
>             Project: Hadoop
>          Issue Type: Bug
>          Components: mapred
>            Reporter: Gautam Kowshik
>            Assignee: Arun C Murthy
>
> sort100
> > 
> > java.lang.OutOfMemoryError: Java heap space at
> > java.util.Arrays.copyOf(Arrays.java:2786) at
> > java.io.ByteArrayOutputStream.write(ByteArrayOutputStream.java:94) at
> > java.io.DataOutputStream.write(DataOutputStream.java:90) at
> > org.apache.hadoop.io.BytesWritable.write(BytesWritable.java:137) at
> > org.apache.hadoop.mapred.MapTask$MapOutputBuffer.collect(MapTa
> > sk.java:349)
> > at
> > org.apache.hadoop.mapred.lib.IdentityMapper.map(IdentityMapper
> > .java:40)
> > at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:50) at
> > org.apache.hadoop.mapred.MapTask.run(MapTask.java:192) at
> > org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:1785)
> > 

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