Users complained the service was slow, but I was blindly grepping log files. I share how I moved from 'driving blind' to full observability using Prometheus and Grafana, and explain Google's 4 Golden Signals of monitoring.
How to deploy without shutting down servers. Differences between Rolling, Canary, and Blue-Green. Deep dive into Database Rollback strategies, Online Schema Changes, AWS CodeDeploy integration, and Feature Toggles.
Solving server waste at dawn and crashes at lunch. Understanding Auto Scaling vs Serverless through 'Taxi Dispatch' and 'Pizza Delivery' analogies. Plus, cost-saving tips using Spot Instances.
Why your server isn't hacked. From 'Packet Filtering' checking ports/IPs to AWS Security Groups. Evolution of Firewalls.
Why would Netflix intentionally shut down its own production servers? Explore the philosophy of Chaos Engineering, the Simian Army, and detailed strategies like GameDays and Automating Chaos to build resilient distributed systems.
Running a server is like piloting a plane. You can't fly by looking out the window (User complaints). You need an altimeter, speedometer, and fuel gauge.
At minimum, put RPS (Traffic), Latency, and Error Rate on your dashboard right now. Your server might be screaming for help. You just can't hear it because you're flying blind. Achieve Observability. It's the only way to sleep soundly at night.
