Prometheus 2.22.0 is now out, following on from 2.21.0 with many fixes and improvements.
A blog on monitoring, scale and operational Sanity
Data is smaller and disks are bigger than you'd think.
You don't have to fill in all the silence details yourself.
Have you ever felt that a piece of software just isn't doing what you need?
Users are sometimes surprised that Prometheus uses RAM, let's look at that.
Linux provides scheduling metrics in
/proc/schedstat, which the node exporter uses.
As previously mentioned partial failure is hard to deal with.
Modern CPUs don't run at one constant frequency.