apache/spark — pull request #1000 by nishkamravi2 (2014-06-06 20:48:38+00:00)
Title: Workaround in Spark for ConcurrentModification issue (JIRA Hadoop-10456, Spark-1097)

This fix has gone into Hadoop 2.4.1. For developers using < 2.4.1, it would be good to have a workaround in Spark as well.

Fix has been tested for performance as well, no regressions found.