mesos/spark — pull request #297 by JoshRosen (2012-11-01 18:30:34+00:00)
Title: Cancel spot instance requests when exiting spark-ec2

This commit cancels spot instance requests if `spark-ec2` is interrupted while waiting for the requests to be fulfilled. When exiting, the script checks whether any of the spot requests were fulfilled and logs a warning if any instances were launched (it does not automatically kill those instances).