Summary: The script runs and kills the stress test periodically. Default values have been used in the script now. Should I make this a part of the Makefile or automated rocksdb build? The values can be easily changed in the script right now, but should I add some support for variable values or input to the script? I believe the script achieves its objective of unsafe crashes and reopening to expect sanity in the database.

Test Plan: python tools/db_crashtest.py

Reviewers: dhruba, vamsi, MarkCallaghan

Reviewed By: vamsi

CC: leveldb

Differential Revision: https://reviews.facebook.net/D9369