move debug log

pkg/mqtt/connection.go

@@ -63,13 +63,13 @@ func (c *Connection) Submit(msg Message) {
 
 // Publish will publish a message , and return a chan to wait for completion.
 func (c *Connection) Publish(msg Message, timeout time.Duration) error {
-	server.Log.Debugf("publishing message : %v, timeout %v", msg, timeout)
+
 
 	message := msg.(*Publish)
 	message.MessageID = c.MessageID
 	c.MessageID++
 	c.Submit(message)
-
+	server.Log.Debugf("publishing message : %v, timeout %v", msg, timeout)
 	ch := make(chan error)
 
 	// we don't wait for confirm.