Hi guys, From time to time we are receiving a large number of concurrent connections (1000+ concurrent users) and we are looking for solutions on how we can scale the database more efficiently without the need to put the site on maintenance mode while scaling up hardware. We tried to load Xenforo over multiple master databases using percona cluster, but that required converting all MyISAM and memory tables to InnoDB. However, with InnoDB we get lots of deadlocks. We would like to check if there are any proven solutions on how we can scale up the database on demmand? thanks!