Distributed
← Operational readiness

Lesson 10.2

Metrics, logs & distributed tracing

Metrics summarize system behavior, logs record structured local events, and distributed traces connect the operations that handled one request so teams can move from symptom to cause.

One downstream inventory call dominates checkout

Ava sees cookie orders become slow. Ben follows one request through each computer step and finds the inventory check taking most of the time.

In this lesson you'll

  1. 1Follow one run and learn how to read the picture
  2. 2Predict what changes before revealing the result
  3. 3Compare the practices and help Ava get the slow inventory hop identified