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MapReduce, mail # user - how to start the customized Child JVM task process of m/r?


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Re: how to start the customized Child JVM task process of m/r?
Owen O'Malley 2011-04-26, 16:13
2011/4/26 Juwei Shi <[EMAIL PROTECTED]>

> Owen, thanks a lot!
>
> Is is possible to do this by changing some source code of current MR?
Of course. Look at launchTask in

http://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.20-security/src/mapred/org/apache/hadoop/mapred/TaskController.java

 Actually, since the TaskController is a plugin, you could make a new plugin
implementation that had the desired changes.

-- Owen