how to force sleuth not send in single b3 header

user_9319281 0
Viewed 804

I'm using sleuth in my Spring Boot application for log tracing, and my application also send some messages via Active MQ, but when i see the message properties, it send the trace with a single b3 header. how can i configure sleuth to separate the headers?

spring-cloud-sleuth spring-boot java
2 Answers

The default is not only better performance, but doesn't violate JMS header name rules. I would advise you figure out why you cannot use b3 single.

If you must use multiple headers, you can do something like this:

@Bean Propagation.Factory customPropagationFactory() {
  return B3Propagation.newFactoryBuilder()
      .injectFormat(Span.Kind.PRODUCER, Format.MULTI)
      .injectFormat(Span.Kind.CONSUMER, Format.MULTI)
      .build();
}
user_12279370

If you want the spring.sleuth.baggage.xxx application properties to work, then you need to wrap your propagation factory in a baggage propagation factory:

@Bean
public BaggagePropagation.FactoryBuilder baggagePropagationFactoryBuilder() {
    Propagation.Factory b3Factory = B3Propagation.newFactoryBuilder()
            .injectFormat(Span.Kind.PRODUCER, B3Propagation.Format.MULTI)
            .injectFormat(Span.Kind.CONSUMER, B3Propagation.Format.MULTI)
            .build();
    return BaggagePropagation.newFactoryBuilder(b3Factory);
}

See the javadoc on TraceBaggageConfiguration.baggagePropagationFactoryBuilder()

user_43317500
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