Monitoring Node.js: Key Metrics You Should Track

Effective Node.js monitoring requires tracking runtime metrics (memory, CPU), application metrics (request rates, response times), and business metrics (user actions, conversion rates). This guide covers what to track, how to collect it, and how to set up meaningful alerts. Why Do Node.js Metrics Matter? You've built a Node.js application and deployed it to production. Without proper metrics, troubleshooting becomes difficult when users report that "the app feels slow." Good metrics transform vague complaints into actionable data points like "the payment service is experiencing 500ms response times, up from a 120ms baseline." 💡 For a deeper understanding of observability in modern applications, check out Last9's APM Observability Guide What Runtime Metrics Should You Track? Runtime metrics show how Node.js itself is performing. They provide early warning signs of problems. Monitor Memory Usage Node.js memory management and garbage collection can be tricky. Watch these metrics t ... Read full article.