detect missing metric in alert.

[apetr...@gmail.com]

Hello everybody.

We have a couple of Prometheus servers that split by target functionality.

In each Prometheus, we have Alert rules. And sometimes we are moving metrics and rules between Prometheus instances. We already faced several times with issues when the metric is moved to another instance but the alert is still on the old one, or vice versa.

So, I'm curious is there a way to detect Alert for which metric is missing?

I know that I can use the absent function, but Alerts are created/update by many teams, so it will be hard to manage this