[tomthumb]

If you select the first option (multiple domains), the load balancing would be done by the client ( hit one domain, on failure hit next.)

[jcun4128]

It looks like the other thing I'm missing is the shared database. Which idk if Postgres counts, my stuff is not that high performance but wondering if I need something else like Redis.

[tomthumb]

Postgres supports clustering and replication.

[jcun4128]

Okay I will look into that. I already use Postgres for the rest of the app idk if I need to introduce another thing just for websocket connection persistence through multiple instances.