expert (E1): a week of the observability queue on a large legacy Prometheus/Alertmanager repo, graded by…

expert (E1): a week of the observability queue on a large legacy Prometheus/Alertmanager repo, graded by…: a task in 3ambench (Harbor dataset). Someone looking at a dashboard reached matchmaking on-call at 20:21 CEST; the edge was returning 502s for lobby-api from about 19:56 until the fix-forward…