Observability
Three signals tell you how a system behaves: metrics, logs, and traces. They work best when you can see them together — and when you are not juggling too many tools.
- Metrics — numbers over time: CPU, latency, error rates. Good for alerts and trends.
- Logging — event detail for debugging after something goes wrong.
- Tracing — follow a request across services to find slow or failing hops.
Unify collection and views where you can. Correlate a spike with logs and a trace instead of guessing across dashboards.