>STDOUT</code> or <code>STDERR</code> trace data will be written directly to those locations. If a URL is provided, Mixer will post Zipkin-formatted data to that endpoint (example: <code>http://zipkin:9411/api/v1/spans</code>).</p><p>In the 0.2 release, Mixer only supports Zipkin tracing.</p></div></div></div><div id="writing-custom-adapters" class="panel panel-default"> <a class="panel-title" data-toggle="collapse" data-parent="#faq-accordion-4" href="#collapse18"><div class="panel-heading"><h4>How can I w