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From Rohan Rai <rohan....@inmobi.com>
Subject JVM Reuse for parallel execution
Date Tue, 11 May 2010 13:57:55 GMT

Is there a way of executing multiple tasks in parallel in a single JVM.

For a particular job we see a child process being spawned for each task,
mapred.job.reuse.jvm.num.tasks being set to -1

In order to avoid the overhead of starting a JVM for each task and yet
parallel execution of tasks, wanted to know sharing the JVM is possible, for
parallel task execution.


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