apache/spark — pull request #267 by aarondav (2014-03-28 22:13:23+00:00)
Title: SPARK-1349: spark-shell gets its own command history

Currently, spark-shell shares its command history with scala repl.

This fix is simply a modification of the default FileBackedHistory file setting:
https://github.com/scala/scala/blob/master/src/repl/scala/tools/nsc/interpreter/session/FileBackedHistory.scala#L77