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