This is a usage question.

In the Sleuth docs for gRPC, they mention two variants. First one uses io.github.lognet:grpc-spring-boot-starter and io.zipkin.brave:brave-instrumentation-grpc and clients must use SpringAwareManagedChannelBuilder. In the second variant, nothing is said other than "Grpc Spring Boot Starter automatically detects the presence of Spring Cloud Sleuth and brave’s instrumentation for gRPC and registers the necessary client and/or server tooling."

There doesn't seem to be any relation between these projects, and are maintained by different people. yidongnan/grpc-spring-boot-starter doesn't seem to use SpringAwareManagedChannelBuilder anywhere. Should it? Also, does it need io.zipkin.brave:brave-instrumentation-grpc to work?

Perhaps the owners of the two projects should discuss merging them. It seems like a waste of time to develop two parallel projects for the same purpose.