stop waiting for the ready notification if the server has stopped

Signed-off-by: Benjamin Wang <[email protected]>

server/embed/serve.go

@@ -99,7 +99,12 @@ func (sctx *serveCtx) serve(
 	splitHttp bool,
 	gopts ...grpc.ServerOption) (err error) {
 	logger := defaultLog.New(io.Discard, "etcdhttp", 0)
-	<-s.ReadyNotify()
+
+	select {
+	case <-s.ReadyNotify(): // wait for e.Server to join the cluster
+	case <-s.StopNotify(): // publish aborted from 'ErrStopped'
+		return nil
+	}
 
 	sctx.lg.Info("ready to serve client requests")