Observability & Monitoring
You can't fix what you can't see.
Topics
| Chapter | What It Covers |
|---|---|
| Observability Fundamentals | Logs, metrics, and traces; SLI/SLO/SLA and error budgets; alerting philosophy; liveness vs readiness; dashboards |
Why This Matters
You can't fix what you can't see, and you can't see what you didn't instrument. Every design interview eventually asks "how would you know if this broke?" — the answer lives in this chapter.