Threshold Monitoring
Threshold monitoring is a system observability and alerting technique that involves setting predefined limits (thresholds) on metrics, such as CPU usage, memory consumption, or error rates, to detect when systems deviate from normal operational ranges. It triggers alerts or automated actions when these thresholds are breached, enabling proactive issue detection and response. This concept is widely implemented in monitoring tools to ensure system reliability, performance, and availability.
Developers should learn and use threshold monitoring to maintain system health and prevent outages by identifying anomalies early, such as resource exhaustion or performance degradation in applications and infrastructure. It is essential for DevOps, SRE roles, and any production environment to set up alerts for critical metrics like response times or server load, reducing downtime and improving incident response. Use cases include monitoring cloud services, microservices architectures, and business-critical applications to meet SLAs and operational standards.