The May Boston MySQL User Group featured John Hugg of VoltDB talking about determinism and databases. I have uploaded the hour-long video to http://www.youtube.com/watch?v=mTDLyRauJtw. Seasoned MySQLers will nod their heads because the problems described are familiar, and those who are not exactly sure what determinism and databases means will learn a lot.
Enjoy!
(As always, videos are free on YouTube with no login or attempt to solicit your e-mail address or any other information)