Rule-Based Monitoring
Rule-based monitoring is a methodology for system and application oversight that uses predefined rules or conditions to detect issues, trigger alerts, and automate responses. It involves setting up specific thresholds, patterns, or logical criteria (e.g., CPU usage > 90% for 5 minutes) to monitor metrics, logs, or events in real-time. This approach is foundational in IT operations, DevOps, and security to ensure reliability, performance, and compliance by identifying anomalies or failures based on explicit rules.
Developers should learn rule-based monitoring to implement proactive observability in production environments, enabling early detection of bugs, performance degradation, or security breaches without manual intervention. It is essential for maintaining service-level agreements (SLAs), automating incident response in CI/CD pipelines, and ensuring compliance with regulatory standards in industries like finance or healthcare. Use cases include monitoring server health, application error rates, network traffic spikes, or security policy violations.