OpenTelemetry

Vendor-neutral observability framework for distributed tracing, metrics, and logs. Provides SDKs for application instrumentation and a Collector for receiving, processing, and exporting telemetry data.

Architecture

App (SDK) → OTEL Collector → Backend (Jaeger / Tempo+Grafana)
    ↓              ↓
  Traces       Pipelines:
  Metrics      receivers → processors → exporters
  Logs

Task Reference

Go Instrumentation

• SDK setup, TracerProvider, HTTP/gRPC middleware → references/languages/go.md
• Database tracing, context rules, semconv → references/languages/go-advanced.md