Hi, someone told me that lemmy.world is running a similar setup to mine and that you might have some insight.
For background, I’ve got my instance running on 3 servers, I’ve disabled the scheduled tasks on the Lemmy containers that are load balanced (I’ve got an extra container that does the scheduled tasks).
If you started up the Lemmy containers and they all tried to do a database migration, how do you handle this? Is the best option to just run a single process on an upgrade and wait until the migration is finished before starting up the others?
Seems to me like you’re thinking clearly about this. Unless someone else with hands on experience jumps in with a pro-tip I suspect you may just have to pick your poison and give it a go.
Multi-lemmy isn’t a common config, though. Lemmy.world and I think lemmy.ca do it, but even lemmy.ml which was the biggest instance 2mo ago doesn’t. There might be half a dozen people in the world with hands on experience at this.