Observability

Intro

Collectively, these three pillars of observability—metrics for the "what," logs for the "why," and traces for the "how"—provide a holistic view of system behavior, enabling teams to detect, diagnose, and resolve issues effectively

Logs

Logs are detailed records of discrete events

Traces

Traces map the journey of a single request across a distributed system to show its end-to-end path.

Metrics

Metrics are numeric summaries of system health

Tools

Open Telemetry

Mind Map

tracing

Swift apple ecosystem logging

W3C header

References

datadog | monitor otel w3c tracing limitation