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https://issues.apache.org/jira/browse/MAPREDUCE-2472?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aaron T. Myers reassigned MAPREDUCE-2472:
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Assignee: Aaron T. Myers
> Extra whitespace in mapred.child.java.opts breaks JVM initialization
> --------------------------------------------------------------------
>
> Key: MAPREDUCE-2472
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2472
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: task-controller
> Affects Versions: 0.20.2, 0.22.0
> Reporter: Todd Lipcon
> Assignee: Aaron T. Myers
> Fix For: 0.22.0
>
> Attachments: mapreduce-2472.0.patch
>
>
> When creating taskjvm.sh, we split mapred.child.java.opts on " " and then
> create a quoted argument for each of those results. So, if you have an extra
> space anywhere in this configuration, you get an argument '' in the child
> command line, which the JVM interprets as an empty class name. This results
> in a ClassNotFoundException and the task cannot run.
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