Proper Transaction Name for Spring Boot Actuators

[remmeier]

Calls to the Spring Boot Actuators are labels: "ControllerClassName#methodName". For many kinds and for many kinds of applications (like with Kubernetes and health checks), those endpoints will be called often. One can configure https://www.elastic.co/guide/en/apm/agent/java/current/config-http.html#config-use-path-as-transaction-name to make use of the path as transcation names, but this can lead to other issues. Since it is a common use case, would be great to have a good default for the Spring MVC integration to support the Actuators out-of-the-box with reasonable labels, probably the first path element would already be sufficient (and will mostly stay like that anyway, like /health).

[SylvainJuge]

Hi @remmeier ,

Just to clarify here:

• actuator endpoints create dedicated HTTP transactions with url like http://localhost:8080/actuator/${ID}
• those endpoints can be identified by their request path ID listed here for defaults https://docs.spring.io/spring-boot/docs/current/reference/html/production-ready-features.html

I'm not familiar with Actuator implementation details, do you know how (and if) we could identify which actuator endpoint is being called at runtime without relying on brittle URL parsing ? If yes, changing the current implementation would be quite straightforward.

It seems that there is a property management.endpoints.web.base-path that allows to set the path prefix (default /actuator), thus we could use that also.