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by pcalcado 534 days ago
By database layer, do you mean the RDS in the diagrams?

If so, they were logical diagrams; the deployment itself was more complicated to handle the realities of AWS and whatnot.

Still, having a single beefy RDS instance is a pretty common pattern for apps at this size. I've never experienced RDS postgres as a bottleneck for standard microservices architectures even at the 100-million-MAU scale.