Application Performance Monitoring and Observability for Beginners

Is your application running slowly, or worse, crashing without your knowledge? Understanding how to track and analyze system health is crucial for maintaining a reliable user experience in modern software development. This text-only course guides you from foundational monitoring concepts to practical observability strategies. You will learn how to instrument your code, collect key metrics, and interpret performance data to find and resolve bottlenecks before they impact your users. What you'll learn: Understand the core pillars of observability: metrics, logs, and traces; Implement structured logging to make application errors searchable and actionable; Instrument code with OpenTelemetry to track request latency and system performance; Configure dashboards to monitor CPU, memory, and database response times; Analyze distributed traces to pinpoint performance bottlenecks across services; Set up proactive alerting thresholds to detect anomalies in real time. You will start with key terminology and foundational definitions of application performance monitoring (APM) before moving on to practical scenarios, reading through real-world instrumentation examples, and practicing with written code-based exercises. This course is designed specifically for beginners and developers new to system monitoring, with no prior observability experience required. Start building more reliable, observable software today.