A service-level batch job runs nightly and then exits. Which metric is the key one to expose, and how should it usually be delivered?

A metric tracks the number of requests currently in progress and can move up or down during the day....

A developer wants to expose how long it has been since the last successful sync. What is the recomme...

A team proposes adding a `user_id` label to a high-volume request metric so every user's traffic can...

A batch job regularly runs for more than a few minutes and sometimes becomes slow when calling exter...

An exporter polls its target every 10 seconds on its own timer and caches the results for Prometheus...