SQLite Forum

SQLite with NFS + cachefilesd
Thanks for the input! I really need no downtime at all though. 

I was thinking about trying to mount the block storage to multiple hosts simultaneously. AWS EBS has a multi-attach feature, with some limitations. A big one is that standard file systems don't support concurrent access, so I'd need to use GFS2 or something like that. Starts being a bit less simple than I'd wish, but I may give it a try.