Observability · Flashcard
What does an alerting rule define in Prometheus?
- AA PromQL condition that triggers an alert when true
- BA precomputed query saved as a brand new time series
- CA routing tree that maps alerts onto receivers
- DA scrape job describing which targets to collect
Why this is the answer
An alerting rule fires when its PromQL expression returns results. A recording rule instead saves a query's result as a new series; routing belongs to Alertmanager.
Official docs