Observability and Monitoring in Modern Applications
Observability and Monitoring in Modern Applications Observability and monitoring help teams understand what applications do, how they perform, and why issues happen. Monitoring often covers health checks and pre-set thresholds, while observability lets you explore data later to answer new questions. In modern architectures, three signals matter most: logs, metrics, and traces. Together they reveal events, quantify performance, and connect user requests across services. Logs provide a record of what happened, when, and under what conditions. Metrics give numerical trends like latency, error rate, and throughput. Traces follow a single user request as it moves through services, showing timing and dependencies. When used together, they create a clear picture: what status a system is in now, where to look next, and how different parts interact. ...