diff --git a/web.py b/web.py
index a000b9b..bddd590 100644
--- a/web.py
+++ b/web.py
@@ -44,6 +44,7 @@ class DispatchHandler(tornado.web.RequestHandler):
         return self.write({'errcode': 0, "errmsg": ''})
 
     def _selfmp2ss(self):
+        log.info("start mp2ss")
         try:
             ss = Mp2shushu()
             ss.run()