apache/incubator-spark — pull request #435 by tdas (2014-01-15 06:24:27+00:00)
Title: Fixed the flaky tests by making SparkConf not serializable

SparkConf was being serialized with CoGroupedRDD and Aggregator, which somehow caused OptionalJavaException while being deserialized as part of a ShuffleMapTask. SparkConf should not even be serializable (according to conversation with Matei). This change fixes that.