Missing traceId in error log

[wapkch]

As mentioned in spring-projects/spring-framework#30675

The trace id in error log is missing after upgrading from Spring Boot 2 to Spring Boot 3.

After looking into it, i found that add a tomcat TraceValve like Spring Cloud Sleuth does can solve the problem. I'm not sure whether this should be provided by default?

Sample:
https://github.com/wapkch/web-tracing-log-demo

[jonatan-ivanov]

There is not much we can do for this on Micrometer Tracing side, please see these issues:

• Document how to mark an observation as an error if the exception was handled spring-projects/spring-framework#29848
• Document limitations of Servlet Filter observations spring-projects/spring-framework#29398

As a workaround, you can create an error handler and signal the error on the Observation: example.