Adds trace and span ids to the Slf4J MDC, so you can extract all the logs from a given trace or span in a log aggregator. Example logs:
2016-02-02 15:30:57.902 INFO [bar,6bfd228dc00d216b,6bfd228dc00d216b,false] 23030 --- [nio-8081-exec-3] ... 2016-02-02 15:30:58.372 ERROR [bar,6bfd228dc00d216b,6bfd228dc00d216b,false] 23030 --- [nio-8081-exec-3] ... 2016-02-02 15:31:01.936 INFO [bar,46ab0d418373cbc9,46ab0d418373cbc9,false] 23030 --- [nio-8081-exec-4] ...
[appname,traceId,spanId,exportable] entries from the MDC:
Sleuth records timing information to aid in latency analysis. Using sleuth, you can pinpoint causes of latency in your applications. Sleuth is written to not log too much, and to not cause your production application to crash.
spring-cloud-sleuth-zipkin is on the classpath then the app will generate and collect Zipkin-compatible traces.
By default it sends them via HTTP to a Zipkin server on localhost (port 9411).
Configure the location of the service using
spring-kafkayour app will send traces to a broker instead of http.
spring-cloud-sleuth-streamis deprecated and should no longer be used.
If using Zipkin, configure the percentage of spans exported using
the SLF4J MDC is always set and logback users will immediately see the trace and span ids in logs per the example
above. Other logging systems have to configure their own formatter to get the same result. The default is