Comment by vault_

Autoscaling seems like a downstream concern from the techniques being discussed here. Autoscaling tends to have a pretty high latency, so you still need a strategy for being overloaded while that extra capacity comes online. There's also a question of how the autoscaler knows what "load" is and when it's "too high." Just going off of CPU/memory usage probably means you're over-provisioning. Instead, if you have back-pressure or load-shedding built into your system you can use those as signals to the autoscaler.