Update config.ini

sample/config.ini

@@ -29,7 +29,7 @@ session_max_pipeline=1024
 # If proxy don't send a heartbeat in timeout seconds which is usually because proxy has high load or even no response, zk will mark this proxy offline.
 # A higher timeout will recude the possibility of "session expired" but clients will not know the proxy has no response in time if the proxy is down indeed.
 # So we highly recommend you not to change this default timeout and use Jodis(https://github.com/wandoulabs/codis/tree/master/extern/jodis)
-# which watches the available proxies and will drop the offline proxy automatically.
+# which watches the available proxies and will skip the offline proxy or add new online proxy automatically.
 # If you are not using Java in client, you can DIY a zk watcher accourding to Jodis source code.
 zk_session_timeout=30