Comment by acd

Prometheus.io which is a modern fresh monitoring system that I would checkout if replacing a legacy system.

Also take a look at Riemann which is system monitoring written in Clojure. Riemann should be good for monitoring latency of the system.

If it helps here is Slidedeck from Spotify how they do their monitoring https://www.netways.de/fileadmin/images/Events_Trainings/Eve...