We generate stats to keep track of traces sent, failures and so on
A Timer used for timing out spans in the DeadlineSpanMap
Add this record as a time based annotation.
Add this record as a time based annotation.
Mutate the Span with whatever new info we have.
Mutate the Span with whatever new info we have. If we see an "end" annotation we remove the span and send it off.
Always sample the request.
Always sample the request.
Sets the endpoint in the span for any future annotations.
Sets the endpoint in the span for any future annotations. Also sets the endpoint in any previous annotations that lack one.
Receives the Finagle generated traces and sends them off to Zipkin