this.traceRequests = metricRegistry.timer(name(prefix, "trace-requests"));
this.connectRequests = metricRegistry.timer(name(prefix, "connect-requests"));
this.moveRequests = metricRegistry.timer(name(prefix, "move-requests"));
this.otherRequests = metricRegistry.timer(name(prefix, "other-requests"));
this.listener = new AsyncListener() {
@Override
public void onTimeout(AsyncEvent event) throws IOException {
asyncTimeouts.mark();
}