We had a fun time this week with TokyoTyrant. Recently it has become apparent that MemcacheDB has been all but abandoned. As fantastic as the early work was by Steve Chu, the project is in disrepair. That, coupled with the less than obvious failover for its replication combined to make us seek alternatives.
This past April I was riding in a late model, 2 door rental car with an interesting trio for sure. On my right sat Patrick Galbraith, maintainer of DBD::mysql and author of the Federated storage engine. Directly in front of me manning the steering wheel (for those of you keen on spatial description, you may have noted at this point that its most likely I was seated in the back, left seat of a car which is designed to be driven on the right side of the road. EOUF [end of useless fact]), David Axmark, co-founder of MySQL. Immediately to his right sat Brian Aker, of (most recently) Drizzle fame.