Good day fellow Moodlers,
This topic has been bantered around for quite some time, but most responses seem to have been dated and at least a few years old.
We already have a load balanced web cluster for our fairly large moodle, supporting well over 25000 users. Our database, however is still potentially a single point of failure.
We have some plans to deploy master-slave replication across identical hardware. (MySQL / InnoDB/ Moodle 1.9)
Given there are so many newcomers to the Database Clustering playground, has anyone else successfully implemented a multinode (at least three) database cluster?
I was looking at Percona XtraDB Cluster and it looks relatively promising, however, I was hoping someone else had any hands-on deployment with this or any other viable cluster solution.