Curious how you managed this, currently have a setup using an nginx reverse proxy as a load balancer between two separate web servers that connect to a Galera cluster for the database, using an NFS mount for data and internal_data directories, and would love to be able to improve on this

The csync2 setup is something I hadn't even wanted to touch, seems like it'd be way too easy for something to sync wrong and mess something up. This site is fairly heavy on attachments as well, around 500gb or so of attachments