ADVANCED // ENTERPRISE
MODULE 09 // OBSERVABILITY
Monitoring at Scale.
Implement enterprise monitoring and observability.
OBSERVABILITY ARCHITECTURE
Enterprise monitoring aggregates signals from hundreds of components. Design for scale: distributed collection, centralized aggregation, and efficient querying.
The three pillars: metrics (quantitative measurements over time), logs (event records with context), and traces (request journey across services). All three are needed for effective troubleshooting.
Alert on symptoms, not causes. Users care about latency and errors, not CPU usage. High CPU is only a problem if it causes user-visible impact.
< 15min
Detection Time
Time from issue occurrence to alert. Faster detection reduces impact.
< 30min
Resolution Time
Time from alert to fix. Requires runbooks and accessible data.
99.9%
Alert Accuracy
Percentage of alerts requiring action. High false positives cause alert fatigue.
KNOWLEDGE CHECK // Q09
Why alert on symptoms rather than causes?