MaxScale is a Proxy for the MySQL protocol built with a modular architecture.
The underlying concept of modules allows to extend the MaxScale proxy services. The current version implements Read Write splitting and Connection Load Balancing. Internally MySQL queries go through a SQL parsing phase. This gives MaxScale great capabilities regarding queries routing.
So if you are interested by MaxScale do not hesitate to enter the chat room #maxscale on irc.freenode.net. its developers will be there. Bring your ideas and problems. You are welcome.
The MaxScale sources code is on github
THere is a MaxScale Google group available
And a good starting point on how to install and configure MaxScale is Ivan Zoratti’s blog post