Tail-based sampling unlocks deeper insights into distributed systems by allowing OpenTelemetry users to prioritize traces that matter most, such as those with errors or slow responses. This guide explains how tail-based sampling works, its differences from head-based sampling, and provides a practical walkthrough for setting up a two-tier OpenTelemetry Collector architecture that intelligently filters traces for more actionable observability.

https://itnext.io/empower-your-observability-tail-based-sampling-for-better-tracing-with-opentelemtry-243ca2cc55d1