anchor.diff:  http://www.splunk.com/[Splunk] etc. you can order the events that took place. An example of
   Kibana would look like this:
   
  -image::https://raw.githubusercontent.com/spring-cloud/spring-cloud-sleuth/master/docs/src/main/asciidoc/images/kibana.png[Log correlation with Kibana]
  +image::https://raw.githubusercontent.com/spring-cloud/spring-cloud-sleuth/{branch}/docs/src/main/asciidoc/images/kibana.png[Log correlation with Kibana]
   
   If you want to use https://www.elastic.co/guide/en/logstash/current/index.html[Logstash] here is the Grok pattern for Logstash:
   
  
positive.code: 
  *Logback setup*
  
  Below you can find an example of a Logback configuration (file named `https://github.com/spring-cloud-samples/sleuth-documentation-apps/blob/master/service1/src/main/resources/logback-spring.xml[logback-spring.xml]`) that:
  
  - logs information from the application in a JSON format to a `build/${spring.application.name}.json` file
  - has commented out two additional appenders - console and standard log file
  
negative.code: 
  This is how the visualization of the parent / child relationship of spans would look like:
  
  image::https://raw.githubusercontent.com/spring-cloud/spring-cloud-sleuth/{branch}/docs/src/main/asciidoc/images/parents.png[Parent child relationship]
  
  === Purpose
  
  