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✅ Production Engineering Level
Monitoring & Observability
Complete Beginner → Advanced Syllabus (Pin-to-Pin)
🟢 LEVEL 1 — Observability Fundamentals
1. Three Pillars of Observability
2. Why Observability Matters
- Production visibility
- Incident detection
- Performance analysis
- Root cause analysis
🟢 LEVEL 2 — Metrics
3. Metrics Collection
- Time-series data
- Metric types (counters, gauges, histograms)
- Cardinality management
- Sampling strategies
4. Common Metrics
- Request rate & latency
- Error rate
- Resource utilization
- Business metrics
🟡 LEVEL 3 — Logging
5. Structured Logging
- JSON structured logs
- Log levels
- Context propagation
- Correlation IDs
6. Log Aggregation
- ELK stack
- Datadog
- Splunk
- Log parsing & analysis
🟡 LEVEL 4 — Distributed Tracing
7. Tracing Fundamentals
- Spans & traces
- Trace propagation
- OpenTelemetry standard
- Sampling decisions
8. Tracing Tools
- Jaeger
- Zipkin
- Datadog APM
- Trace visualization
🟠 LEVEL 5 — Monitoring Systems
9. Time Series Databases
- Prometheus
- InfluxDB
- TimescaleDB
- Querying time series
10. Metrics Storage
- Data retention policies
- Downsampling
- Aggregation
- Cost optimization
🟠 LEVEL 6 — Alerting
11. Alert Rules
- Threshold-based alerts
- Anomaly detection
- Alert composition
- Alert fatigue prevention
12. Notification Routing
- Alert pipelines
- Escalation policies
- On-call management
- Integration with incident systems
🔵 LEVEL 7 — Advanced Patterns
13. Custom Metrics
- Business metrics instrumentation
- Feature metrics
- User journey tracking
- Revenue metrics
14. Synthetic Monitoring
- Synthetic tests
- Uptime monitoring
- Proactive detection
- End-to-end testing
🔵 LEVEL 8 — Performance Monitoring
15. Application Performance
- APM tools
- Method profiling
- Database query analysis
- Slow transaction tracking
16. Infrastructure Monitoring
- Server health checks
- Kubernetes metrics
- Network monitoring
- Storage monitoring
🔴 LEVEL 9 — Organization & Governance
17. Dashboard Design
- Meaningful dashboards
- Drill-down capabilities
- Dashboard governance
- On-call dashboards
18. Observability Culture
- Team training
- Instrumentation standards
- Cost optimization
- Continuous improvement
⭐ Senior Frontend Focus (Must Master)
- Frontend performance metrics instrumentation
- Web Vitals collection & monitoring
- User interaction tracking
- Error tracking & RUM (Real User Monitoring)
- Frontend synthetic tests
- Frontend bundle size monitoring
- Cache hit/miss rate tracking