Which solution to choose for mysql master/slave replication under rails 3?

Question

MySQL

Subj. Those. at the framework or proxy level, requests must go either to the master or to the slave. It is not a problem to manually mark (write code) which requests will go to the slave. Apparently 90% of the load in several methods of the controller.

What solution can be considered now stable, supported, actually used in production, etc.?
Needed specifically for rails 3.2.x and ruby ​​193

Answer 1

Also faced this issue. So far I've only found http://kovyrin.github.com/db-charmer/ .