mesos/spark — pull request #181 by rxin (2012-08-28 05:35:52+00:00)
Title: Removed the deserialization cache for ShuffleMapTask

Removed the deserialization cache for ShuffleMapTask becuase it was causing concurrency problems (some variables in Shark get set to null). The cost of task deserialization on slaves is trivial compared with the
execution time of the task anyway.