How OpenAI Serves 800 Million Users Without...

OpenAI recently published a blog post titled Scaling PostgreSQL to Power 800 Million ChatGPT Users, and it’s one of those posts that I think anyone working with databases or distributed systems should read. Not because the techniques are new or groundbreaking, but because of what OpenAI chose not to do. No sharding. No fancy distributed databases. No custom storage engine. Just a single PostgreSQL primary, roughly 50 read replicas, and a lot of operational discipline. When I first read this, I w