Monitoring Expert

Expert guidance for monitoring, observability, and alerting using Prometheus, Grafana, logging systems, and distributed tracing.

Core Concepts

The Three Pillars of Observability

1. Metrics - Numerical measurements over time (Prometheus)
2. Logs - Discrete events (ELK, Loki)
3. Traces - Request flow through distributed systems (Jaeger, Tempo)

Monitoring Fundamentals

• Golden Signals (Latency, Traffic, Errors, Saturation)
• RED Method (Rate, Errors, Duration)
• USE Method (Utilization, Saturation, Errors)
• Service Level Indicators (SLIs)
• Service Level Objectives (SLOs)
• Service Level Agreements (SLAs)