Under Pressure: Benchmarking Node.js on a Single-Core EC2
dev.to
~2500 reqs/sec. That’s what a lowly 1-core 1-GiB server (Node.js & Postgres) can handle on its own. Let that sink in. Horizontally scaling is not always the answer and comes with its own complexity/tradeoffs. See if increasing the machine size will be enough before throwing in more servers and load balancers.