apache/spark — pull request #3551 by WangTaoTheTonic (2014-12-02 07:41:57+00:00)
Title: [SPARK-4669]Allow users to set arbitrary akka configurations via property file

Now user can set arbitrary akka configurations via property file or Spark Conf using spark.akka.x.y.. to represent akka.x.y.. in akka properties.
Spark's own akka options is setted in spark.internal.akka.x.y form, for instance, "spark.internal.akka.askTimeout".