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https://issues.apache.org/jira/browse/MAPREDUCE-398?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tibor Kiss updated MAPREDUCE-398:
---------------------------------

    Attachment: hs_err_pid21757.log

Here is another way to reproduce the problem.
I create a cluster on Amazon EC2 m1.large instances and I try to run a simple 
distcp from hdfs to hdfs using a relatively small file. I end up in a jvm crash.
See the attached hs_err_pid21757.log

If I create a cluster of type m1.small instances, then everything it works 
perfectly.

It seems that there is a problem related to 64bit JVM only.

I tried to set up 
export HADOOP_TASKTRACKER_OPTS="-XX:+UseCompressedOops"
in  /etc/hadoop/conf.dist/hadoop-env.sh (then restarted the nodes) but no luck!

> Task process exit with nonzero status of 134.        
> -----------------------------------------------------
>
>                 Key: MAPREDUCE-398
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-398
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>         Environment: Linux OS, 1 Namenode, 5 Datanode
>            Reporter: sha feng
>            Priority: Minor
>         Attachments: hs_err_pid21757.log
>
>
> During fetcher2 stage, i got these errors on all datanodes.
> java.io.IOException: Task process exit with nonzero status of 134.      
>         at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java: 424)
> When fetching more than 1000000 urls, these errors occur.

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