diff --git a/3rd/lua/lstring.c b/3rd/lua/lstring.c
index 79a232df..71443a91 100644
--- a/3rd/lua/lstring.c
+++ b/3rd/lua/lstring.c
@@ -419,8 +419,11 @@ luaS_clonestring(lua_State *L, TString *ts) {
   result = query_ptr(ts);
   if (result)
     return result;
-  // ts is not in SSM, so recalc hash, and add it to SSM
   h = luaS_hash(str, l, 0);
+  result = query_string(h, str, l);
+  if (result)
+    return result;
+  // ts is not in SSM, so recalc hash, and add it to SSM
   return add_string(h, str, l);
 }
 
diff --git a/lualib-src/lua-crypt.c b/lualib-src/lua-crypt.c
index 405679a9..5322b2d6 100644
--- a/lualib-src/lua-crypt.c
+++ b/lualib-src/lua-crypt.c
@@ -885,7 +885,12 @@ int lhmac_sha1(lua_State *L);
 int
 luaopen_crypt(lua_State *L) {
 	luaL_checkversion(L);
-	srandom(time(NULL));
+	static int init = 0;
+	if (!init) {
+		// Don't need call srandom more than once.
+		init = 1 ;
+		srandom(time(NULL));
+	}
 	luaL_Reg l[] = {
 		{ "hashkey", lhashkey },
 		{ "randomkey", lrandomkey },
diff --git a/lualib-src/sproto/lsproto.c b/lualib-src/sproto/lsproto.c
index d1cca74e..22e53189 100644
--- a/lualib-src/sproto/lsproto.c
+++ b/lualib-src/sproto/lsproto.c
@@ -469,7 +469,7 @@ lpack(lua_State *L) {
 	size_t sz=0;
 	const void * buffer = getbuffer(L, 1, &sz);
 	// the worst-case space overhead of packing is 2 bytes per 2 KiB of input (256 words = 2KiB).
-	size_t maxsz = (sz + 2047) / 2048 * 2 + sz;
+	size_t maxsz = (sz + 2047) / 2048 * 2 + sz + 2;
 	void * output = lua_touserdata(L, lua_upvalueindex(1));
 	int bytes;
 	int osz = lua_tointeger(L, lua_upvalueindex(2));
diff --git a/lualib/http/httpc.lua b/lualib/http/httpc.lua
index 09ac9288..68d3ce9c 100644
--- a/lualib/http/httpc.lua
+++ b/lualib/http/httpc.lua
@@ -72,7 +72,8 @@ local function request(fd, method, host, url, recvheader, header, content)
 				body = body .. padding
 			end
 		else
-			body = nil
+			-- no content-length, read all
+			body = body .. socket.readall(fd)
 		end
 	end
 
diff --git a/lualib/http/sockethelper.lua b/lualib/http/sockethelper.lua
index febe4cea..cac3130d 100644
--- a/lualib/http/sockethelper.lua
+++ b/lualib/http/sockethelper.lua
@@ -19,6 +19,8 @@ function sockethelper.readfunc(fd)
 	end
 end
 
+sockethelper.readall = socket.readall
+
 function sockethelper.writefunc(fd)
 	return function(content)
 		local ok = writebytes(fd, content)
diff --git a/lualib/mysql.lua b/lualib/mysql.lua
index c3573ae2..933e0643 100644
--- a/lualib/mysql.lua
+++ b/lualib/mysql.lua
@@ -125,19 +125,6 @@ local function _compose_packet(self, req, size)
     return packet
 end
 
-
-local function _send_packet(self, req, size)
-    local sock = self.sock
-
-    self.packet_no = self.packet_no + 1
-
-
-    local packet = _set_byte3(size) .. strchar(self.packet_no) .. req
-
-    return socket.write(self.sock,packet)
-end
-
-
 local function _recv_packet(self,sock)
 
 
diff --git a/lualib/skynet/debug.lua b/lualib/skynet/debug.lua
index 635bdb31..79c51ad1 100644
--- a/lualib/skynet/debug.lua
+++ b/lualib/skynet/debug.lua
@@ -1,6 +1,4 @@
-local io = io
 local table = table
-local debug = debug
 
 return function (skynet, export)
 
diff --git a/lualib/skynet/remotedebug.lua b/lualib/skynet/remotedebug.lua
index 1fa04155..72a06809 100644
--- a/lualib/skynet/remotedebug.lua
+++ b/lualib/skynet/remotedebug.lua
@@ -1,6 +1,6 @@
 local skynet = require "skynet"
 local debugchannel = require "debugchannel"
-local socket = require "socket"
+local socketdriver = require "socketdriver"
 local injectrun = require "skynet.injectcode"
 local table = table
 local debug = debug
@@ -56,7 +56,7 @@ local function gen_print(fd)
 			tmp[i] = tostring(tmp[i])
 		end
 		table.insert(tmp, "\n")
-		socket.write(fd, table.concat(tmp, "\t"))
+		socketdriver.send(fd, table.concat(tmp, "\t"))
 	end
 end
 
@@ -140,10 +140,13 @@ end
 local function watch_proto(protoname, cond)
 	local proto = assert(replace_upvalue(skynet.register_protocol, "proto"), "Can't find proto table")
 	local p = proto[protoname]
-	local dispatch = p.dispatch_origin or p.dispatch
-	if p == nil or dispatch == nil then
+	if p == nil then
 		return "No " .. protoname
 	end
+	local dispatch = p.dispatch_origin or p.dispatch
+	if dispatch == nil then
+		return "No dispatch"
+	end
 	p.dispatch_origin = dispatch
 	p.dispatch = function(...)
 		if not cond or cond(...) then
@@ -208,7 +211,7 @@ local function hook_dispatch(dispatcher, resp, fd, channel)
 	local function debug_hook()
 		while true do
 			if newline then
-				socket.write(fd, prompt)
+				socketdriver.send(fd, prompt)
 				newline = false
 			end
 			local cmd = channel:read()
@@ -244,7 +247,9 @@ local function hook_dispatch(dispatcher, resp, fd, channel)
 	func = replace_upvalue(dispatcher, HOOK_FUNC, hook)
 	if func then
 		local function idle()
-			skynet.timeout(10,idle)	-- idle every 0.1s
+			if raw_dispatcher then
+			    skynet.timeout(10,idle)	-- idle every 0.1s
+			end
 		end
 		skynet.timeout(0, idle)
 	end
diff --git a/lualib/snax/hotfix.lua b/lualib/snax/hotfix.lua
index 3a6e4e3e..f56a5072 100644
--- a/lualib/snax/hotfix.lua
+++ b/lualib/snax/hotfix.lua
@@ -1,7 +1,4 @@
 local si = require "snax.interface"
-local io = io
-
-local hotfix = {}
 
 local function envid(f)
 	local i = 1
diff --git a/lualib/socketchannel.lua b/lualib/socketchannel.lua
index cf918645..350423a4 100644
--- a/lualib/socketchannel.lua
+++ b/lualib/socketchannel.lua
@@ -411,10 +411,10 @@ end
 
 function channel:close()
 	if not self.__closed then
-		local thread = assert(self.__dispatch_thread)
+		local thread = self.__dispatch_thread
 		self.__closed = true
 		close_channel_socket(self)
-		if not self.__response and self.__dispatch_thread == thread then
+		if not self.__response and self.__dispatch_thread == thread and thread then
 			-- dispatch by order, send close signal to dispatch thread
 			push_response(self, true, false)	-- (true, false) is close signal
 		end
diff --git a/service-src/service_harbor.c b/service-src/service_harbor.c
index 70abe82b..3e722fa9 100644
--- a/service-src/service_harbor.c
+++ b/service-src/service_harbor.c
@@ -346,7 +346,6 @@ dispatch_name_queue(struct harbor *h, struct keyvalue * node) {
 	struct harbor_msg_queue * queue = node->queue;
 	uint32_t handle = node->value;
 	int harbor_id = handle >> HANDLE_REMOTE_SHIFT;
-	assert(harbor_id != 0);
 	struct skynet_context * context = h->ctx;
 	struct slave *s = &h->s[harbor_id];
 	int fd = s->fd;
@@ -366,6 +365,16 @@ dispatch_name_queue(struct harbor *h, struct keyvalue * node) {
 					push_queue_msg(s->queue, m);
 				}
 			}
+			if (harbor_id == (h->slave >> HANDLE_REMOTE_SHIFT)) {
+				// the harbor_id is local
+				struct harbor_msg * m;
+				while ((m = pop_queue(s->queue)) != NULL) {
+					int type = m->header.destination >> HANDLE_REMOTE_SHIFT;
+					skynet_send(context, m->header.source, handle , type | PTYPE_TAG_DONTCOPY, m->header.session, m->buffer, m->size);
+				}
+				release_queue(s->queue);
+				s->queue = NULL;
+			}
 		}
 		return;
 	}