Explore distributed tracing systems for monitoring complex microservices and Docker-based production environments in this conference talk from the International PHP Conference 2017. Delve into Google's Dapper tracing system and its impact on solving monitoring challenges in distributed systems. Learn about the functionality and applications of distributed tracing, with a focus on open-source implementations like Open Zipkin and OpenTracing. Discover how to implement these tracing solutions in PHP environments to enhance debugging, logging, and profiling capabilities in increasingly complex service architectures.