since it's not supported .... (#2791)
since it's not supported .... (#2791)


twitter/zipkin,openzipkin/zipkin,adriancole/zipkin,twitter/zipkin,openzipkin/zipkin,twitter/zipkin,adriancole/zipkin,openzipkin/zipkin,adriancole/zipkin,openzipkin/zipkin,adriancole/zipkin,twitter/zipkin,openzipkin/zipkin