Daily Term: Observability

Observability

Observability is the ability to understand a system’s internal state by examining its external outputs, such as logs, metrics, and traces. For example, a microservices app might use observability tools to diagnose why a request failed by correlating logs (events), metrics (latency), and traces (request path). Observability enables debugging and performance optimization in complex systems but requires comprehensive instrumentation and integration of monitoring tools.

Date: 2025-09-09