Cianplan

Level 4: Reliability, security & cloud · L4.2 Observability

Distributed tracing and OpenTelemetry

Explain spans, context propagation and sampling.

12 min · Pro

What you take away

  • A span is one timed operation; a trace is the tree of spans that share a trace id across every service a request touched.

And 3 more inside the class, in Pro.

How the class is laid out

  1. The problem
  2. Reading a waterfall
  3. Propagation is the work
  4. Sampling: decide late if you can
  5. Check your understanding