Have you ever felt that a piece of software just isn't doing what you need?
Reliable Insights
A blog on monitoring, scale and operational Sanity
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.
Prometheus 2.20 added a group aggregator. What is it for?
/proc/mdstat is another of the files that the node exporter exposes as metrics.
Trying to improve alerting piecemeal can be difficult.
