Sleuth does not work in Coroutines context

Describe the bug traceId, spanId and exportable are not printed in Coroutines context.

Versions Spring Boot: 2.3.3.RELEASE Spring Cloud: Hoxton.SR8

Sample You can see full code by sleuth-coroutines.

	@GetMapping("/hello")
	suspend fun hello(): Map<String, String> {
		log.info("in main context")

		GlobalScope.launch {
			log.info("in Coroutines context (launch)")
		}

		GlobalScope.async {
			log.info("in Coroutines context (async)")
		}.await()

		return mapOf(
			"msg" to "hello"
		)
	}

Printed log messages

2020-09-12 21:03:15.306  INFO [sleuth-coroutines,42883585174b8ae0,42883585174b8ae0,true] 22621 --- [ctor-http-nio-2] c.e.sleuthcoroutines.WebController       : in main context
2020-09-12 21:03:15.312  INFO [sleuth-coroutines,,,] 22621 --- [atcher-worker-2] c.e.sleuthcoroutines.WebController       : in Coroutines context (async)
2020-09-12 21:03:15.312  INFO [sleuth-coroutines,,,] 22621 --- [atcher-worker-1] c.e.sleuthcoroutines.WebController       : in Coroutines context (launch)

[marcingrzejszczak]

Maybe that’s because you’re using 2.2.8? Please upgrade to the latest version.

If you check the SimpleTracer code you’ll see @since 3.0.4.

Kotlin code got added in 3.1.0.

[tmdgusya]

okey thank you i’ll upgrade version!