#Monitoring

How do you find where requests slow down in a microservices system? Learn how OpenTelemetry ties logs, metrics, and traces together to pinpoint bottlenecks with real code examples.

My service was down for 12 hours and I had no idea. How I built a minimal monitoring stack as a solo developer with free and low-cost tools.

I was tired of users reporting errors before I knew about them. How I set up Sentry in a Next.js project for real-time error tracking and alerting.

Your app works perfectly on localhost but crashes in production. Set up Sentry and error tracking to catch bugs before users complain.

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.

Logs are the black box of your infrastructure. When disaster strikes, grep is not enough. We explore the ELK Stack—the industry standard for centralized logging. Understand the roles of Elasticsearch, Logstash, and Kibana, compare modern alternatives like Fluentd and Vector, and learn strategies for Index Lifecycle Management (ILM).