apache/spark — pull request #2922 by shivaram (2014-10-24 06:42:16+00:00)
Title: [SPARK-4030] Make destroy public for broadcast variables

This change makes the destroy function public for broadcast variables. Motivation for the change is described in https://issues.apache.org/jira/browse/SPARK-4030.
This patch also logs where destroy was called from if a broadcast variable is used after destruction.