What happens when your Node.js server receives 1000 requests/sec but your database can only handle 100/sec? 🤔
Most engineers think the system will just queue the requests.
But that's exactly how systems crash.
Memory spikes.
Queues grow infinitely.
Latency explodes.
So how do modern systems prevent this?
The answer is a concept called Backpressure.
The idea is surprisingly simple when a consumer cannot process data fast enough, it signals the producer to slow down.
Instead of blindly pushing more data, the system controls the flow of information.
Think of it like a traffic signal 🚦
Cars (data) cannot enter
the road faster than they exit.
Node.js actually implements this by default.
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