Observability and Distributed Tracing in Modern Systems

Observability and Distributed Tracing in Modern Systems Observability is about understanding how a system behaves in the real world. It helps answer questions like what happened, where it happened, and why. In modern software, a single action can touch many services, machines, and networks. Good observability turns that complexity into actionable insight. Three signals guide most teams: logs, metrics, and traces. Metrics show the big picture with numbers over time. Logs provide details about events and decisions. Traces follow a user request across services, revealing the path and delays along the way. In distributed systems, traces are especially powerful because they connect the dots between components that otherwise operate in isolation. ...

September 22, 2025 · 2 min · 365 words