diff --git a/README.md b/README.md
index 473e84f..44b5ad7 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,13 @@
 shadowsocks manyuser branch
 ===========
+Which people need this branch
+------------------
+1.share shadowsocks server
+
+2.create multi server by shadowsocks
+
+3.manage server (transfer / account)
+
 Install
 -------
 install MySQL 5.x.x
@@ -8,7 +16,7 @@ install MySQL 5.x.x
 
 create a database named `shadowsocks`
 
-import `shadowsocks.sql`
+import `shadowsocks.sql` into `shadowsocks`
 
 edit Config.py
 Example:
@@ -33,13 +41,18 @@ Example:
 
 	db start server at port [%s] pass [%s]
 
-User table colum
+Database user table column
 ------------------
 `passwd` server pass
+
 `port` server port
+
 `t` last keepalive time
+
 `u` upload transfer
+
 `d` download transer
+
 `transfer_enable` if u + d > transfer_enable this server will be stop (db_transfer.py del_server_out_of_bound_safe)
 
 Manage socket
@@ -49,9 +62,18 @@ Manage server work in UDP at `MANAGE_BIND_IP` `MANAGE_PORT`
 use `MANAGE_PASS:port:passwd:0` to del a server at port `port`
 
 use `MANAGE_PASS:port:passwd:1` to run a server at port `port` password is `passwd`
-eg:
 
-	udpCliSock.sendto('MANAGE_PASS:65535:123456:1', (MANAGE_BIND_IP, MANAGE_PORT))
+Python Eg:
+
+	udpsock.sendto('MANAGE_PASS:65535:123456:1', (MANAGE_BIND_IP, MANAGE_PORT))
+	
+PHP Eg:
+
+	$sock = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);
+	$msg = 'MANAGE_PASS:65535:123456:1';
+	$len = strlen($msg);
+	socket_sendto($sock, $msg, $len, 0, MANAGE_BIND_IP, MANAGE_PORT);
+	socket_close($sock);
 
 shadowsocks
 ===========
diff --git a/shadowsocks/server_pool.py b/shadowsocks/server_pool.py
index 61f5ca0..beb1c0f 100644
--- a/shadowsocks/server_pool.py
+++ b/shadowsocks/server_pool.py
@@ -33,7 +33,8 @@ import thread
 import threading
 import sys
 import asyncmgr
-
+import Config
+from socket import *
 
 class ServerPool(object):
 
@@ -44,12 +45,12 @@ class ServerPool(object):
         self.config = utils.get_config(False)
         utils.print_shadowsocks()
         self.dns_resolver = asyncdns.DNSResolver()
-
+        self.mgr = asyncmgr.ServerMgr()
         self.tcp_servers_pool = {}
         #self.udp_servers_pool = {}
 
         self.loop = eventloop.EventLoop()
-        thread.start_new_thread(ServerPool.run_server, (self.loop, self.dns_resolver))
+        thread.start_new_thread(ServerPool._loop, (self.loop, self.dns_resolver, self.mgr))
 
     @staticmethod
     def get_instance():
@@ -58,9 +59,8 @@ class ServerPool(object):
         return ServerPool.instance
 
     @staticmethod
-    def run_server(loop, dns_resolver):
+    def _loop(loop, dns_resolver, mgr):
         try:
-            mgr = asyncmgr.ServerMgr()
             mgr.add_to_loop(loop)
             dns_resolver.add_to_loop(loop)
             loop.run()
@@ -103,6 +103,24 @@ class ServerPool(object):
             ret = e
         return ret
 
+    def del_server(self, port):
+        port = int(port)
+        ret = True
+        if port not in self.tcp_servers_pool:
+            logging.info("stopped server at %s:%d already stop" % (self.config['server'], int(port)))
+            return True
+        logging.info("stopping server at %s:%d" % (self.config['server'], int(port)))
+        try:
+            udpsock = socket(AF_INET, SOCK_DGRAM)
+            udpsock.sendto('%s:%s:0:0' % (Config.MANAGE_PASS, port), (Config.MANAGE_BIND_IP, Config.MANAGE_PORT))
+            udpsock.close()
+        except Exception, e:
+            import traceback
+            traceback.print_exc()
+            ret = e
+            logging.warn(e)
+        return ret
+
     def cb_del_server(self, port):
         port = int(port)
         ret = True
diff --git a/shadowsocks/tcprelay.py b/shadowsocks/tcprelay.py
index b2bc44d..bb9872a 100644
--- a/shadowsocks/tcprelay.py
+++ b/shadowsocks/tcprelay.py
@@ -356,6 +356,7 @@ class TCPRelayHandler(object):
         if not data:
             self.destroy()
             return
+        self._server.server_transfer_ul += len(data)
         if not is_local:
             data = self._encryptor.decrypt(data)
             if not data:
@@ -388,6 +389,7 @@ class TCPRelayHandler(object):
         if not data:
             self.destroy()
             return
+        self._server.server_transfer_dl += len(data)
         if self._is_local:
             data = self._encryptor.decrypt(data)
         else:
@@ -495,6 +497,8 @@ class TCPRelay(object):
         self._eventloop = None
         self._fd_to_handlers = {}
         self._last_time = time.time()
+        self.server_transfer_ul = 0L
+        self.server_transfer_dl = 0L
 
         self._timeout = config['timeout']
         self._timeouts = []  # a list for all the handlers