Micrometer context propagation does not work in multi-binder scenarios when binder types are the same (e.g., Rabbit and Rabbit)

[Toxa45]

Good afternoon.
When using SteamBridge with RabbitMQ, the traceId of the sender and recipient are different.
Here is an example based on what was attached in #2639, but the traceId are different.
https://github.com/Toxa45/TestRabbitTraceId/tree/master/TestRabbitTraceId

I also noticed that this happens when the “environment” is filled. Initially, I made a typo and wrote “environment” - and, to my surprise, everything worked locally.

[olegz]

Hey @Toxa45
I have modified your description since there is no problem with StreamBridge, rather with the fact that you are using multi-binder scenario where you don't really need to. You taking data from the same instance of Rabbit as the one you are sending to.
Your configuration should be simplified to

spring:
  cloud:
    function:
      definition: testListener
    stream:
      output-bindings: test
      bindings:
        test-out-0:
          destination: test
          group: test
        testListener-in-0:
          destination: test
          group: test
logging:
  pattern:
    level: "%5p [${spring.application.name:},%X{traceId:-},%X{spanId:-}]"

management:
  tracing:
    sampling:
      probability: 1

Now, if this was just an academic exercise and your intention is to use multi-binder scenario for some real use case, where the type of the binder (i.e., Rabbit) is the same, than at the moment it is not supported and we'll be planning on adding suport for it for 4.2.

[Toxa45]

@olegz Good afternoon. When is 4.2 planned to be released? Or maybe there is some kind of temporary solution?

[Toxa45]

@olegz Good afternoon. The example that I posted is just an example that was transferred from a real project. The binders settings in the example are just to reproduce the error locally. You don’t have binders, so how do you suggest specifying the required host and credentials to connect to rabbit?

spring:
    cloud:
        stream:
            binders:
                rabbit:
                    type: rabbit
                    environment:
                        spring:
                            rabbitmq:
                                password: pass
                                username: username
                                port: 5672
                                virtual-host: /
                                deliveryMode: 2
                                host: RABBIT_HOST