Monstache monitoring

[hubornohub]

Hi,
Currently I’m working on monitoring monstache. Although it has built-in http server but doesn’t expose metrics in Prometheus exposition format. So, I made use of promhttp go library and created custom metrics based on the endpoints like /healthz, /stats etc. But I have a bit confusion here:

1. When does monstache go down? I mean when elastic cluster or mongodb going down, it doesn’t report anything. So, based on which condition can I say it’s unhealthy and test it out to create alerts.
2. And also, unless I hit the endpoint /stats, Prometheus doesn’t fetch the metrics automatically. I want to know like am I doing something wrong here?

[erodactyl]

Did you find a solution to know when Monstache goes down? The /healthz endpoint always returns ok with status code 200.

monstache/monstache.go

Line 4207 in 6f03294

mux.HandleFunc("/healthz", func(w http.ResponseWriter, req *http.Request) {