Curator is logging and tracing neutral. The Curator code is instrumented with logging and tracers but uses a driver mechanism that allows easy integration into your preferred logging and tracing frameworks.
Curator uses SLF4J (http://www.slf4j.org/) for logging. SLF4J is a facade over logging that allows you to plug in any (or no) logging framework. See the SLF4J website for details.
Connect Curator tracing to your tracing framework via an instance of TracerDriver or AdvancedTracerDriver. Curator calls the various methods (e.g. addTrace() or addCount() ) and your instance proxies the calls to your tracing framework. Inform Curator of your tracing driver instance by calling CuratorZookeeperClient.setTracerDriver().