With sprint boot 3.1.5 in two microservices, one using FeignClient to request to the other microservice , I have this properties configuration in both microservices:

management:
  tracing:
    propagation:      
      produce: b3
      consume: b3
    brave:
      span-joining-supported: true

logging:
  pattern:
    level: "%5p [${spring.application.name:},%X{traceId:-},%X{spanId:-},%X{parentId:-}]"

I have next library in both poms:

``` io.micrometer micrometer-tracing-bridge-brave 1.1.6 

I have this FeignConfiguration lets called in microservice A to get the context propagated to the microservice B:

@Configuration public class FeignConfiguration {

@Bean
public Capability capability(final MeterRegistry registry) {
  return new MicrometerCapability(registry);
}

}

I have this in order to log PARENT_ID in both microservices and is working fine:

@Configuration public class BraveTracerConfig {

@Bean
CorrelationScopeCustomizer parentIdCorrelationScopeCustomizer() {
    return builder -> builder.add(SingleCorrelationField.create(BaggageFields.PARENT_ID));
}

} ``` The problem is when microservice A calls microservice B, traceId is propagated but I dont see in microservice B in the logs the spanId or parentId from the feign client logs in microservice A.

First of all, I read about Spring Boot 3.x does not allow joining of spans. But with the brave configuration is supposed I can get it according to this https://github.com/spring-projects/spring-boot/pull/35165, right?

Thanks!

Comment From: OlgaMaciaszek

@jonatan-ivanov, could you take a look at this issue?

Comment From: jonatan-ivanov

Thank you for the issue. There were a quite a few improvements in the auto-configuration in the past year: - Please upgrade to latest Boot (3.3.1 right now) - Please do not define a version for a dependency that is managed by Boot (Brave bridge), remove the version section and let Boot's BOM define the versions - Setting logging.pattern.level is not needed anymore - You don't need to create MicrometerCapability you only need to io.github.openfeign:feign-micrometer' - I think your custom CorrelationScopeCustomizer is not needed either though I'm not sure since I'm not 100% what you are trying to do but would you please try without it? - Brave's joint Span support was added in Boot 3.1, you need to flip a property flag to enable it as you just did (fyi: your link is broken above): Boot#35165

We have a "real-world" demo with feign (with okhttp) where this works, please feel free to take a look: https://github.com/jonatan-ivanov/teahouse. We also have a simple sample: https://github.com/micrometer-metrics/micrometer-samples/tree/main/openfeign

If after looking at these apps, this is still not working for you, could you please provide a minimal sample project to reproduce this issue so we can more easily investigate and ensure any fix is working properly for your use case?

(Fyi: your link to the Boot issue was broken, I fixed it.)

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