To understand what is going on in a distributed system such as a system landscape of cooperating microservices, it is crucial to be able to track and visualize how requests and messages flow between microservices when processing an external call to the system landscape.
Refer to Chapter 1, Introduction to Microservices, the Distributed tracing section, for more information on this subject.
Spring Cloud comes with Spring Cloud Sleuth, which can mark requests and messages/events that are part of the same processing flow with a common correlation ID.
Spring Cloud Sleuth can also decorate log messages with correlation IDs to make it easier to track log messages from different microservices that come from the same processing flow. Zipkin is a distributed tracing system...
