> surely you would prefer temporal degradation then total system shutdown Sometimes, but sometimes you want the opposite. A slow service (e.g. a db server wit

> surely you would prefer temporal degradation then total system shutdown Sometimes, but sometimes you want the opposite. A slow service (e.g. a db server with a failing disk) might still pass health checks but degrade overall system performance. It is easier/simpler to detect a total outage than a slow/flapping service.