Chapter 13: Monitoring Basics
Chala mitrano, aaj aapan monitoring. Bike dashboard — speed, fuel, temperature — highway var rokaychya aadhi. Golden signals, host metrics (CPU/RAM/disk), aani primary path: Prometheus + Node Exporter + Grafana. CloudWatch cha short mention — AWS course madhe depth. Alert fatigue tip aani disk threshold lab. Ghabru naka: ek clear dashboard + ek useful alert.
What you will learn in this chapter
- Golden signals in plain English
- Host metrics: CPU, RAM and disk
- Prometheus + Node Exporter primary path
- A simple Grafana dashboard
- One useful disk alert without noise
Concepts in this chapter
- 13.1Why monitor — dashboard before the outage call
- 13.2Golden signals — four questions in plain English
- 13.3Host metrics — CPU, RAM, disk
- 13.4Primary path — Prometheus + Node Exporter + Grafana
- 13.5Node Exporter — expose host metrics
- 13.6Prometheus — scrape and store
- 13.7Grafana — one calm dashboard
- 13.8Alerting — one disk threshold that matters
- 13.9What about application metrics?
- 13.10CloudWatch in one paragraph (secondary path)
- 13.11Anti-patterns
- 13.12Troubleshooting table
- 13.13Lab — disk metric path and a triggered alert
The chapter recap is at the end of the last concept page.