Also, the main application is in C++. A python script launches the C++ daemons. Perl scripts are quick and dirty tests and deployment scripts. The main hacking I'm looking for is with C++, and I don't care so much if the other stuff gets re-implemented in some other language.
Awesome project and a killer concept. No one has been able to really solve relational database scalability yet. I'll have to study the implementation. I was just talking with some friends a few weeks ago about this problem and we concluded that if someone came up with a distributed relational database with decent scalable performance they would be very successful indeed. Will try it out and follow the progress. Hope it takes off.
Have you tried Vertica? One of the big data project my team did used more than 200 servers in a single Vertica cluster. At the enterprise OEM level, the pricing is actually really affordable. You should try out Vertica Community Edition, the free 3 node version.