this post was submitted on 23 Jun 2023
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You can scale app servers surprisingly far before you need to shard a decently sized single master postgres cluster. Like, probably 20-50+ times the current write traffic it seems this instance has. It was probably due to the websockets thing, thinking about it. With 0.18, that goes away and requests can be stateless, cached, and you can throw a load balancer and n app servers at it.