Practical introduction to OpenTelemetry tracing
summary
Demo shows OpenTelemetry wired into an e‑commerce example: API6 gateway, Jaeger backend, Docker Compose orchestration, a Kotlin Spring Boot catalog, Python Flask pricing and a Rust stock service. Auto‑instrumentation via a Java agent captures cross‑service context with auto-instrumentation and HTTP headers like X-otel-key. The trace in Jaeger surfaces performance and logic issues — an initial run shows 20 spans then manual instrumentation raises it to 27 spans and reveals three repeated SELECT * calls per product.
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chapters (10)
- 0:00Introduction and background
- 3:33Metrics and logging basics
- 9:01Introduction to tracing
- 12:35OpenTelemetry overview
- 15:27Instrumentation approaches
- 19:43Demo setup and API gateway
- 27:18Java auto-instrumentation
- 31:19Python and Rust instrumentation
- 33:09Manual instrumentation
- 37:26Performance and Q&A
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