https://blog.codeship.com/autoscaling-on-complex-telemetry/
blog-post-autoscaling-on-complex-telemetry#make-reason-for-scaling-easy-to-understand1 2 3 "As a first step, you might consider autoscaling based on multiple custom metrics. This is possible to do, but I don't advise it for two reasons. Most important, I think, is that a multi-metric autoscale policy makes communication about its behavior difficult to reason about. "Why did the group scale?" is a very important question, one which should be answerable without elaborate deduction." blog-post-autoscaling-on-complex-telemetry#make-reason-for-scaling-easy-to-understand1 2 3