The author doesn't explicitly say "tracing" but he specifically calls out Dapper and Zipkin in the section, "“It’s slow” is the hardest problem you’ll ever debu

The author doesn't explicitly say "tracing" but he specifically calls out Dapper and Zipkin in the section, "“It’s slow” is the hardest problem you’ll ever debug." Dapper - http://research.google.com/pubs/pub36356.html http://research.google.com/pubs/pub36356.html Zipkin - http://engineering.twitter.com/2012/06/distributed-systems-tracing-with-zipkin.html http://engineering.twitter.com/2012/06/distributed-systems-t...