System Monitoring
System monitoring is the practice of continuously observing and tracking the performance, health, and availability of computer systems, networks, applications, and infrastructure. It involves collecting metrics, logs, and events to detect issues, ensure reliability, and optimize resource usage. This enables proactive maintenance, troubleshooting, and data-driven decision-making in IT operations.
Developers should learn system monitoring to build resilient, scalable applications and maintain production systems effectively. It is essential for identifying performance bottlenecks, debugging failures, ensuring uptime in cloud or on-premise environments, and meeting service-level agreements (SLAs). Use cases include monitoring server CPU/memory usage, application response times, database query performance, and network latency in DevOps, SRE, or backend development roles.