diff --git a/HISTORY.md b/HISTORY.md
index 9067a9ac..2f2af7b2 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,3 +1,12 @@
+v1.0.0-rc2 (2015-3-7)
+-----------
+* Fix a bug in lua 5.3.2
+* Update sproto (fix bugs and add ud for package)
+* Fix a bug in http
+* Fix a bug in harbor
+* Fix a bug in socket channel
+* Enhance remote debugger
+
 v1.0.0-rc (2015-12-28)
 -----------
 * Update to lua 5.3.2
diff --git a/lualib/mysql.lua b/lualib/mysql.lua
index 933e0643..afa76425 100644
--- a/lualib/mysql.lua
+++ b/lualib/mysql.lua
@@ -607,6 +607,10 @@ local function _query_resp(self)
         while err =="again" do
             res, err, errno, sqlstate = read_result(self,sock)
             if not res then
+                mulitresultset.badresult = true
+                mulitresultset.err = err
+                mulitresultset.errno = errno
+                mulitresultset.sqlstate = sqlstate
                 return true, mulitresultset
             end
             mulitresultset[i]=res
diff --git a/lualib/socket.lua b/lualib/socket.lua
index 5ea222e0..d7741b54 100644
--- a/lualib/socket.lua
+++ b/lualib/socket.lua
@@ -407,8 +407,6 @@ end
 
 ---------------------- UDP
 
-local udp_socket = {}
-
 local function create_udp_object(id, cb)
 	assert(not socket_pool[id], "socket is not closed")
 	socket_pool[id] = {
diff --git a/lualib/sproto.lua b/lualib/sproto.lua
index 3ae114bd..00f5337b 100644
--- a/lualib/sproto.lua
+++ b/lualib/sproto.lua
@@ -180,9 +180,10 @@ end
 local header_tmp = {}
 
 local function gen_response(self, response, session)
-	return function(args)
+	return function(args, ud)
 		header_tmp.type = nil
 		header_tmp.session = session
+		header_tmp.ud = ud
 		local header = core.encode(self.__package, header_tmp)
 		if response then
 			local content = core.encode(response, args)