Flow display and user login and rate limit bug

client/control.go

@@ -189,8 +189,10 @@ func NewConn(tp string, vkey string, server string, connType string, proxyUrl st
 		}
 	} else {
 		sess, err = kcp.DialWithOptions(server, nil, 10, 3)
-		conn.SetUdpSession(sess)
-		connection = sess
+		if err == nil {
+			conn.SetUdpSession(sess)
+			connection = sess
+		}
 	}
 	if err != nil {
 		return nil, err

client/health.go

@@ -79,6 +79,7 @@ func check(t *file.Health) {
 				err = errors.New("status code is not match")
 			}
 		}
+		t.Lock()
 		if err != nil {
 			t.HealthMap[v] += 1
 		} else if t.HealthMap[v] >= t.HealthMaxFail {
@@ -91,5 +92,6 @@ func check(t *file.Health) {
 			//send fail remove
 			serverConn.SendHealthInfo(v, "0")
 		}
+		t.Unlock()
 	}
 }