[jcgrillo]

I'll bet your backpressure mechanism can react at least an order of magnitude faster than your scaling mechanism.

[vrosas]

Serverless systems are pretty decent at scaling quickly these days. The problem is rarely lack of servers in my experience, though. You usually run out of database connections or some other bottleneck first.

[immibis]

In other words, you run out of database servers, or your connection limit is too low so you don't fully utilize your database servers.