You've seen metrics like prometheus_build_info, but why do they have a value of 1?
Reliable Insights
A blog on monitoring, scale and operational Sanity
One of the big changes in Prometheus 2.15.0 was reduced memory usage for indexes.
Subqueries were added to PromQL a while back, but there's more to this feature than it'd seem.
How can you view older data, while keeping your monitoring reliable?
On a regular basis a potential Prometheus user says they need a different architecture to make things reliable or scalable. Let's look at that.
The machine knows its own name, couldn't Prometheus use it?
How should a monitoring system deal with metrics no longer being there?
The standard way to use metrics in Prometheus is to declare them at file level, before using them. Why?
You may have noticed that notifications from the Alertmanager are text. Wouldn't it be nice if Prometheus sent graphs along?
Have you ever wondered why the buckets in histograms are not just counters of events that fall into each bucket?
