"observationEnabled" defaults to TRUE

[cero-t]

Expected Behavior

I want the auto-configuration to set the observationEnabled parameter of RabbitTemplate and AbstractRabbitListenerContainerFactory to true by default.

Current Behavior

Micrometer Tracing does not work out of the box because the default value of their observationEnabled are now set to false.

Context

Spring Boot 3.0 provides auto-configuration for Micrometer Tracing, and it works out of the box with Spring Web and Spring Cloud Stream, but it doesn't work with Spring AMQP. I found Spring Cloud Stream (binder-rabbitmq) sets it true. I think Spring AMQP should also be friendly towards Micrometer Tracing.

[garyrussell]

It is false by default by design; adding observation is quite expensive, especially for those who only want metrics (and not tracing). When observation is not enabled, we maintain Micrometer timers outside of observation, avoiding its overhead.

We could consider setting it based on an environment property, but we cannot set it to true by default.

[artembilan]

Don't we need to expose such an auto-configuration property, @garyrussell , in Spring Boot? RabbitProperties.Template and RabbitProperties.Listener . For Spring Integration I did via spring.integration.management.observationPatterns

[garyrussell]

It could be done there, yes; but, again, I would not want it to default to true.

[artembilan]

Right, false by default, but still easy to configure by convention instead of some customizers and so on.

[cero-t]

Thank you, I understand the design. I hope it can be set by an environment or auto-configuration property.

[garyrussell]

You could open a request against Boot, but I don't know if the Boot team will add new properties in patch releases.