A good monitor should have a human-friendly interface, and that interface is Zipkin. This article discusses in detail how Sleuth can be used with Zipkin.
Zipin profile
Zipkin is Twitter’s open-source distributed tracking system, based on Dapper’s paper. Its main function is to collect time series data of the system to track system latency and other issues of microservices architecture. Zipkin also provides a very user-friendly interface to help us analyze tracking data.
TIPS
Zipkin’s official website: zipkin.io/