Linux HOWTOs: DIY MySQL Cluster

Alex Davies has written a few smart, practical Linux tutorials. Check out his HOWTO on building a MySQL server cluster: his example uses two workers and one management server, but I imagine it's possible to run the managment service on one of the two primary systems. The big concern about any kind of redundancy clustering is safe and reliable replication of data. Davies doesn't get into the particulars of how the ndbd program moves data between hosts and so the network nitty-gritty stays behind the curtain, but if you feel the need to make two machines talk SQL to each other then this looks like a great quick start guide.