diff --git a/pkg/engine/v1/server.go b/pkg/engine/v1/server.go
index fd90078..c5abba9 100644
--- a/pkg/engine/v1/server.go
+++ b/pkg/engine/v1/server.go
@@ -86,15 +86,16 @@ func (s *Server) ServeDNS(w dns.ResponseWriter, m *dns.Msg) {
 		goto RESPONSE
 	}
 
-	log.WithFields(log.Fields{
-		"req_id": reqID,
-		"name":   m.Question[0].Name,
-		"type":   m.Question[0].Qtype,
-	}).Debug("Receive request")
-
 	context = plugin.NewContext(w, m, reqID)
 	context.MustRegisterPluginsOnce(s.plugins)
 
+	log.WithFields(log.Fields{
+		"req_id":    reqID,
+		"name":      m.Question[0].Name,
+		"type":      m.Question[0].Qtype,
+		"client_ip": context.ClientIP(),
+	}).Debug("Receive request")
+
 	context.Warmup()
 	context.Patch()
 
diff --git a/plugin/mupstream/plugin.go b/plugin/mupstream/plugin.go
index fcef181..25a0ba2 100644
--- a/plugin/mupstream/plugin.go
+++ b/plugin/mupstream/plugin.go
@@ -33,7 +33,7 @@ func (p *Plugin) Patch(c *plugin.Context) {
 	up := p.bestUpstream()
 	resp, rtt, err := up.forward(c.Msg)
 	if err != nil {
-		c.Error(err)
+		// c.Error(err)
 		return
 	}
 	resp.CopyTo(c.Msg)
diff --git a/plugin/mupstream/upstream.go b/plugin/mupstream/upstream.go
index 5400f54..d63e444 100644
--- a/plugin/mupstream/upstream.go
+++ b/plugin/mupstream/upstream.go
@@ -28,7 +28,7 @@ func newUpstream(addr string) *upstream {
 			Dialer: &net.Dialer{
 				KeepAlive: time.Minute,
 			},
-			Timeout: time.Second,
+			Timeout: 300 * time.Millisecond,
 		},
 	}
 }
diff --git a/plugin/statistics/plugin.go b/plugin/statistics/plugin.go
index 9eb5872..86a0234 100644
--- a/plugin/statistics/plugin.go
+++ b/plugin/statistics/plugin.go
@@ -64,9 +64,12 @@ func (p *Plugin) AfterResponse(c *plugin.Context, err error) {
 	}).Info("Response time usage statistics")
 	// write influxdb
 	go func(responseTime int64) {
+		if len(c.Msg.Question) < 1 {
+			return
+		}
 		err := p.pushResponsePoint(c.Msg.Question[0].Qtype, c.Msg.Question[0].Name, responseTime, !c.HasError())
 		if err != nil {
-
+			logrus.Error(err)
 		}
 	}(responseTime)
 }
@@ -116,5 +119,8 @@ func (p *Plugin) writeResponse() {
 	p.points = make([]*client.Point, 0)
 	p.writeLock.Unlock()
 
-	influxdbClient.Write(bp) // ignore error
+	err = influxdbClient.Write(bp) // ignore error
+	if err != nil {
+		logrus.Error(err)
+	}
 }