apache/spark — pull request #2863 by andrewor14 (2014-10-20 21:54:58+00:00)
Title: [SPARK-4013] Do not create multiple actor systems on each executor

In the existing code, each coarse-grained executor has two concurrently running actor systems. This causes many more error messages to be logged than necessary when the executor is lost or killed because we receive a disassociation event for each of these actor systems.

This blocks #2840.