apache/incubator-spark — pull request #396 by pwendell (2014-01-12 23:36:55+00:00)
Title: Setting load defaults to true in executor

This preserves the behavior in earlier releases. If properties are set for the executors via `spark-env.sh` on the slaves, then they should take precedence over spark defaults. This is useful for if system administrators are setting properties for a standalone cluster, such as shuffle locations.

/cc @andrewor14 who initially reported this issue.