Open Telemetry

on YouTube ↗21m

" summary

OpenTelemetry unifies OpenTracing and OpenCensus into an API-plus-SDK that lets libraries emit traces, metrics and logs; Beam gets official support alongside existing options like Spandex (DataDog-only) and OpenCensus. It models work as spans with parent/child context and uses head sampling and tail sampling to cut costs. Concrete tools: telemetry.execute for sync start/stop/failure hooks, collectors that stitch traces, and visual outputs (single-request flame graphs that reveal N+1 queries, stack traces and network latency). Watch for incomplete traces and clock skew.

AI-written summary · about

" chapters (11)

1. 0:00Introduction
2. 2:04Observability problem
3. 6:17Distributed tracing basics
4. 10:56Built-in tracing limitations
5. 11:17Observability superpowers
6. 13:49Distributed tracing culture shift
7. 14:10Common pitfalls
8. 15:16Open Tracing vs Open Census
9. 16:40OpenTelemetry merger
10. 17:42OpenTelemetry in Erlang/Elixir
11. 18:03Telemetry for metrics

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