'Zipkin upstream span ended before downstream span
I have Gateway (Spring Cloud Gateway) and API services (Spring Boot) running on localhost. The API service is behind the Gateway. The Gateway service will route all /api/** endpoints to the API service. I have Sleuth and Zipkin set up too. It is all working fine but I'm not able to understand why Zipkin is showing the following trace. Showing here is a simple GET request to endpoint /api/ping. The question is why the Gateway span ends before API span? Shouldn't it be other way around? What is the logic behind this?
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