Observability Study Portal

TL;DR

Grafana is the visualization, alerting, and exploration layer of modern observability, sitting on top of data sources like Prometheus (metrics), Loki (logs), and Tempo (traces) — together the LGTM stack. Senior engineers care because it's where dashboards, SLOs, and on-call alerts live, and getting it right (correlated traces/logs/metrics, recording rules, low-cardinality labels) is the difference between a war-room scramble and an obvious-at-a-glance incident.