Have you ever wondered why the buckets in histograms are not just counters of events that fall into each bucket?read more
When relabelling is suggested for selecting targets with service discovery there’s sometimes a misunderstanding that relabelling can only change labels. That’s not the case.read more
When metrics come from another system they often don’t have labels.
metric_relabel_configs offers one way around that.
You may have noticed that most PromQL functions and operators remove the metric name in their result. Let’s look at why.read more
We’ve looked at the full Life of a Label. Let’s focus on one of the most common confusions around relabelling.read more
Prometheus 1.3.0 contained a small change that makes it possible to extract arbitrary labels from systems like Consul that only normally support one-dimensional tags.read more
The blackbox_exporter allows for a variety of network checks to be performed, with many common modules available out of the box.read more
In a previous post I said that rather than adding another label such as
alias to a target to give it a useable name, you should instead change the
instance label. Let’s see how you do that.