> I think you're conflating instrumentation and alerting.

A bit, because I'm hesitant to cram into a time series database data that I consider boolean. I'd move past this for consistency if the checks were easy to create, though.

> Prometheus has many instrumentation options. For your example I'd suggest a cronjob that outputs a file to the textfile node_exporter module (echo old_libc_process $COUNT > /configured/path/oldlibc.prom).

Interesting. That architecture or configuration of this exporter isn't documented yet, but if just magically sent numbers upstream from text files that I keep up to date, that might be worth a migration by itself. Nagios SSH checks are ridiculous to manage.

Thanks for indulging my conversation in any case. I'll put this on my radar and watch where it goes.