can not get mdc traceId

[LostZG]

Describe the bug

it can be seen, http-nio-8881-exec-4 is my main thread，TaskMainSubExecutePool is the thread pool i started,
they can both get the traceId in mdc，
xcLogProducerThread is disruptor thread，but it can not get the traceId in mdc.
what is the cause of this? or how do i troubleshoot this problem? thks!

Expected behavior
can get mdc traceId

Desktop (please complete the following information):

• OS: [mac os]
• Version [13.5]
• JVM Version [OpenJDK 1.8]

[rfoltyns]

I managed to reproduce it with a very specific Log4j2 pattern layout configuration. However, I don't want to make too many assumptions here. Could you please share all of the following:

• logging configuration
• list of logging dependencies on the classpath
• list of system properties you used to configure the logging

[tcmot]

@LostZG
能不能获取到mdc traceId和disruptor没有任何关系的，disruptor不提供获取traceId的任何保证。

你应该检查自己的场景，mdc传递traceId的条件非常苛刻，threadlocal只能传递当前线程，InheritableThreadLocal只能传递子线程，无法传递线程池。

想要满足所有情况，需要使用阿里的TLL库进行包装。