diff --git a/config_log b/config_log
index f4e4e0f4..3a5f51aa 100644
--- a/config_log
+++ b/config_log
@@ -1,4 +1,4 @@
-thread = 2
+thread = 8
 mqueue = 256
 cpath = "./service/?.so"
 logger = nil
diff --git a/gate/main.c b/gate/main.c
index f262a2e8..1c1fa3a9 100644
--- a/gate/main.c
+++ b/gate/main.c
@@ -135,7 +135,7 @@ _forward(struct skynet_context * ctx,struct gate *g, int uid, void * data, size_
 	}
 	struct connection * agent = _id_to_agent(g,uid);
 	if (agent->agent) {
-		// todo: client package has not session , send 0x7fffffff
+		// client package has not session , send 0x7fffffff
 		skynet_send(ctx, agent->client, agent->agent, SESSION_CLIENT, data, len, 0);
 	} else if (g->watchdog) {
 		char * tmp = malloc(len + 32);
@@ -202,6 +202,7 @@ _cb(struct skynet_context * ctx, void * ud, int session, uint32_t source, const
 		}
 		// big-endian
 		uint16_t len = plen[0] << 8 | plen[1];
+
 		void * data = mread_pull(m, len);
 		if (data == NULL) {
 			if (mread_closed(m)) {
diff --git a/gate/mread.c b/gate/mread.c
index 0645ec37..f795750a 100644
--- a/gate/mread.c
+++ b/gate/mread.c
@@ -276,7 +276,7 @@ mread_poll(struct mread_pool * self , int timeout) {
 			socklen_t len = sizeof(struct sockaddr_in);
 			int client_fd = accept(self->listen_fd , (struct sockaddr *)&remote_addr ,  &len);
 			if (client_fd >= 0) {
-//				printf("MREAD connect %s:%u (fd=%d)\n",inet_ntoa(remote_addr.sin_addr),ntohs(remote_addr.sin_port), client_fd);
+//				printf("MREAD(%p) connect %s:%u (fd=%d)\n",self, inet_ntoa(remote_addr.sin_addr),ntohs(remote_addr.sin_port), client_fd);
 				struct socket * s = _add_client(self, client_fd);
 				if (s) {
 					self->active = -1;
@@ -390,6 +390,14 @@ mread_pull(struct mread_pool * self , int size) {
 	for (;;) {
 		int bytes = recv(s->fd, buffer, rd, MSG_DONTWAIT); 
 		if (bytes > 0) {
+/*
+			printf("recv: [%d] ",s->fd);
+			int i;
+			for (i=0;i<bytes;i++) {
+				printf("%02x ",(uint8_t*)buffer[i]);
+			}
+			printf("\n");
+*/
 			ringbuffer_resize(rb, blk , bytes);
 			if (bytes < sz) {
 				_link_node(rb, self->active, s , blk);
diff --git a/lualib/mcgroup.lua b/lualib/mcgroup.lua
new file mode 100644
index 00000000..d7c09321
--- /dev/null
+++ b/lualib/mcgroup.lua
@@ -0,0 +1,30 @@
+local skynet = require "skynet"
+
+local SERVICE = "GROUPMGR"
+
+local group = {}
+
+function group.create()
+	return skynet.call(SERVICE, skynet.unpack, skynet.pack("NEW" , skynet.self()))
+end
+
+function group.address(id)
+	local send_id = id * 2 + 1
+	return skynet.query_group(send_id)
+end
+
+function group.enter(id, handle)
+	handle = handle or skynet.self()
+	skynet.send(SERVICE, 0 , skynet.pack("ENTER", handle, id))
+end
+
+function group.leave(id, handle)
+	handle = handle or skynet.self()
+	skynet.send(SERVICE, 0 , skynet.pack("LEAVE", handle, id))
+end
+
+function group.release(id)
+	skynet.send(SERVICE, 0 , skynet.pack("CLEAR", skynet.self(), id))
+end
+
+return group
\ No newline at end of file
diff --git a/lualib/skynet.lua b/lualib/skynet.lua
index 496b0daa..01a98c02 100644
--- a/lualib/skynet.lua
+++ b/lualib/skynet.lua
@@ -248,7 +248,7 @@ function skynet.clear_group(handle)
 end
 
 function skynet.query_group(handle)
-	return c.command("GROUP","QUERY " .. tostring(handle))
+	return string_to_handle(c.command("GROUP","QUERY " .. tostring(handle)))
 end
 
 function skynet.address(addr)
diff --git a/redisconf b/redisconf
new file mode 100644
index 00000000..971fa540
--- /dev/null
+++ b/redisconf
@@ -0,0 +1,2 @@
+main = "127.0.0.1:6379"
+
diff --git a/service-src/service_harbor.c b/service-src/service_harbor.c
index 38184acb..6bc7ead8 100644
--- a/service-src/service_harbor.c
+++ b/service-src/service_harbor.c
@@ -442,6 +442,19 @@ _remote_send_handle(struct harbor *h, struct skynet_context * context, uint32_t
 	return 0;
 }
 
+static void
+_remote_register_name(struct harbor *h, struct skynet_context * context, const char name[GLOBALNAME_LENGTH], uint32_t handle) {
+	int i;
+	for (i=0;i<GLOBALNAME_LENGTH;i++) {
+		if (name[i] == '\0')
+			break;
+	}
+	if (handle != 0) {
+		_update_remote_name(h, context, name, handle);
+	}
+	_request_master(h,context,name,i,handle);
+}
+
 static int
 _remote_send_name(struct harbor *h, struct skynet_context * context, uint32_t source, const char name[GLOBALNAME_LENGTH], int session, const char * msg, size_t sz) {
 	struct keyvalue * node = _hash_search(h->map, name);
@@ -457,23 +470,14 @@ _remote_send_name(struct harbor *h, struct skynet_context * context, uint32_t so
 		header.destination = 0;
 		header.session = (uint32_t)session;
 		_push_queue(node->queue, msg, sz, &header);
+		// 0 for request
+		_remote_register_name(h, context, name, 0);
 		return 1;
 	} else {
 		return _remote_send_handle(h, context, source, node->value, session, msg, sz);
 	}
 }
 
-static void
-_remote_register_name(struct harbor *h, struct skynet_context * context, const char name[GLOBALNAME_LENGTH], uint32_t handle) {
-	int i;
-	for (i=0;i<GLOBALNAME_LENGTH;i++) {
-		if (name[i] == '\0')
-			break;
-	}
-	_update_remote_name(h, context, name, handle);
-	_request_master(h,context,name,i,handle);
-}
-
 static void
 _report_local_address(struct harbor *h, struct skynet_context * context, const char * local_address, int harbor_id) {
 	size_t sz = strlen(local_address);
diff --git a/service-src/service_master.c b/service-src/service_master.c
index 28b0a852..a6120555 100644
--- a/service-src/service_master.c
+++ b/service-src/service_master.c
@@ -220,6 +220,17 @@ _update_address(struct skynet_context * context, struct master *m, int harbor_id
 	}
 	m->remote_fd[harbor_id] = fd;
 	_broadcast(context, m, addr, sz, harbor_id);
+
+	int i;
+	for (i=1;i<REMOTE_MAX;i++) {
+		if (i == harbor_id)
+			continue;
+		const char * addr = m->remote_addr[i];
+		if (addr == NULL) {
+			continue;
+		}
+		_send_to(fd, addr, strlen(addr), i);
+	}
 }
 
 
diff --git a/service-src/service_tunnel.c b/service-src/service_tunnel.c
new file mode 100644
index 00000000..9fb6a92d
--- /dev/null
+++ b/service-src/service_tunnel.c
@@ -0,0 +1,22 @@
+#include "skynet.h"
+#include <stdio.h>
+
+static int
+_cb(struct skynet_context * context, void * ud, int session, uint32_t source, const void * msg, size_t sz) {
+	uint32_t dest = (uint32_t)(uintptr_t)ud;
+	skynet_forward(context, dest);
+	return 0;
+}
+
+int
+tunnel_init(void * dummy, struct skynet_context *ctx, const char * args) {
+	uint32_t dest = skynet_queryname(ctx, args);
+	if (dest == 0) {
+		skynet_error(ctx, "Can't create tunnel to %s",args);
+		return 1;
+	}
+
+	skynet_callback(ctx, (void*)(intptr_t)dest, _cb);
+
+	return 0;
+}
diff --git a/service/console.lua b/service/console.lua
index 63846d5c..70e22b12 100644
--- a/service/console.lua
+++ b/service/console.lua
@@ -8,8 +8,6 @@ skynet.start(function()
 		local handle = skynet.launch(cmd)
 		if handle == nil then
 			print("Launch error:",cmd)
-		else
-			print("Launch:",handle,cmd)
 		end
 		skynet.yield()
 	end
diff --git a/service/group_agent.lua b/service/group_agent.lua
new file mode 100644
index 00000000..3dcfa84b
--- /dev/null
+++ b/service/group_agent.lua
@@ -0,0 +1,58 @@
+local skynet = require "skynet"
+
+local command = {}
+local group = {}
+
+function command.CREATE(id)
+	assert(group[id] == nil)
+	group[id] = {}
+	local recv_id = id * 2
+	local addr = skynet.query_group(recv_id)
+	skynet.ret(skynet.pack(addr))
+end
+
+function command.AGENT(id, handle)
+	local tunnel = skynet.launch("tunnel", skynet.address(handle))
+	assert(tunnel)
+	local send_id = id * 2 + 1
+	skynet.enter_group(send_id, tunnel)
+	table.insert(group[id] , tunnel)
+end
+
+function command.ENTER(id, handle)
+	local recv_id = id * 2
+	local send_id = id * 2 + 1
+	skynet.enter_group(recv_id, handle)
+	skynet.enter_group(send_id, handle)
+end
+
+function command.LEAVE(id, handle)
+	local recv_id = id * 2
+	local send_id = id * 2 + 1
+	skynet.leave_group(recv_id, handle)
+	skynet.leave_group(send_id, handle)
+end
+
+function command.CLEAR(id)
+	local g = group[id]
+	assert(g)
+	local recv_id = id * 2
+	local send_id = id * 2 + 1
+	skynet.clear_group(recv_id)
+	skynet.clear_group(send_id)
+	group[id] = nil
+	for _,v in ipairs(g) do
+		skynet.kill(v)
+	end
+end
+
+skynet.dispatch(function (msg,sz)
+	local cmd , id , handle = skynet.unpack(msg,sz)
+	local f = command[cmd]
+	assert(f, cmd)
+	f(id,handle)
+end)
+
+skynet.start(function()
+	skynet.send("GROUPMGR" , 0, skynet.pack("MASTER", skynet.self()))
+end)
diff --git a/service/group_mgr.lua b/service/group_mgr.lua
new file mode 100644
index 00000000..34e2e68c
--- /dev/null
+++ b/service/group_mgr.lua
@@ -0,0 +1,69 @@
+local skynet = require "skynet"
+
+local id = 0
+local harbor_ctrl = {}
+local multicast = {}
+local command = {}
+
+function command.MASTER(address, harbor)
+	harbor_ctrl[harbor] = address
+end
+
+local function create_group_in(harbor, id)
+	local local_ctrl = assert(harbor_ctrl[harbor])
+	local g = multicast[id]
+	local local_mc = skynet.call(local_ctrl, skynet.unpack, skynet.pack("CREATE", id))
+	for _,mc in pairs(g) do
+		skynet.send(local_ctrl, 0, skynet.pack("AGENT", id, mc))
+	end
+	for harbor_id,ctrl in pairs(harbor_ctrl) do
+		if harbor_id ~= harbor then
+			skynet.send(ctrl,0, skynet.pack("AGENT", id, local_mc))
+		end
+	end
+	g[harbor] = local_mc
+end
+
+function command.NEW()
+	id = id + 1
+	multicast[id] = {}
+	skynet.ret(skynet.pack(id))
+end
+
+function command.ENTER(address, harbor, id)
+	local g = multicast[id]
+	assert(g,id)
+	if g[harbor] == nil then
+		create_group_in(harbor, id)
+	end
+	local local_ctrl = assert(harbor_ctrl[harbor])
+
+	skynet.send(local_ctrl, 0, skynet.pack("ENTER", id, address))
+end
+
+function command.LEAVE(address, harbor, id)
+	local g = multicast[id]
+	assert(g,id)
+	local local_ctrl = assert(harbor_ctrl[harbor])
+	skynet.send(local_ctrl, 0, skynet.pack("LEAVE", id, address))
+end
+
+function command.DELETE(_,_, id)
+	local g = multicast[id]
+	assert(g,id)
+	multicast[id] = nil
+
+	for harbor_id,_ in pairs(g) do
+		skynet.send(harbor_ctrl[harbor_id],0, skynet.pack("CLEAR", id))
+	end
+end
+
+skynet.dispatch(function (msg,sz)
+	local cmd , address , param = skynet.unpack(msg,sz)
+	local f = command[cmd]
+	assert(f, cmd, param)
+	local harbor = skynet.harbor(address)
+	f(address, harbor, param)
+end)
+
+skynet.register("GROUPMGR")
\ No newline at end of file
diff --git a/service/main.lua b/service/main.lua
index 00847b46..a1951b8f 100644
--- a/service/main.lua
+++ b/service/main.lua
@@ -6,11 +6,14 @@ skynet.start(function()
 	print("Server start")
 	local lualog = skynet.launch("snlua","lualog")
 	local launcher = skynet.launch("snlua","launcher")
+	local group_mgr = skynet.launch("snlua", "group_mgr")
+	local group_agent = skynet.launch("snlua", "group_agent")
 	local remoteroot = skynet.launch("snlua","remote_root")
 	local console = skynet.launch("snlua","console")
 	local watchdog = skynet.launch("snlua","watchdog","8888 4 0")
 	local db = skynet.launch("snlua","simpledb")
 	local connection = skynet.launch("connection","256")
 	local redis = skynet.launch("snlua","redis-mgr")
+--	skynet.launch("snlua","testgroup")
 	skynet.exit()
 end)
diff --git a/service/main_log.lua b/service/main_log.lua
index 408f7323..4b98a112 100644
--- a/service/main_log.lua
+++ b/service/main_log.lua
@@ -1,7 +1,15 @@
 local skynet = require "skynet"
 
-print("Log server start")
+skynet.dispatch()
 
-skynet.launch("snlua","globallog")
+skynet.start(function()
+	print("Log server start")
+	local lualog = skynet.launch("snlua","lualog")
+	local launcher = skynet.launch("snlua","launcher")
+	local group_agent = skynet.launch("snlua", "group_agent")
+	local console = skynet.launch("snlua","console")
+	local log = skynet.launch("snlua","globallog")
+--	skynet.launch("snlua","testgroup_c 11 1")
+	skynet.exit()
+end)
 
-skynet.exit()
diff --git a/service/testgroup.lua b/service/testgroup.lua
index 05e1d69a..9d4cb557 100644
--- a/service/testgroup.lua
+++ b/service/testgroup.lua
@@ -1,13 +1,24 @@
 local skynet = require "skynet"
+local group = require "mcgroup"
 
 skynet.dispatch()
 
 skynet.start(function()
-	local group = skynet.query_group(1)
+	local gid = group.create()
+	local gaddr = group.address(gid)
+	print("=== Create Group ===",gid,skynet.address(gaddr))
 	for i=1,10 do
 		local address = skynet.newservice("testgroup_c", tostring(i))
-		skynet.enter_group(1 , address)
+		group.enter(gid , address)
 	end
-	skynet.send(group,"Hello World")
-	skynet.exit()
+	skynet.sleep(1000)
+	skynet.send(gaddr,"Hello World")
+
+--	local group = skynet.query_group(1)
+--	for i=1,10 do
+--		local address = skynet.newservice("testgroup_c", tostring(i))
+--		skynet.enter_group(1 , address)
+--	end
+--	skynet.send(group,"Hello World")
+--	skynet.exit()
 end)
diff --git a/service/testgroup_c.lua b/service/testgroup_c.lua
index 6a729883..3407c1a2 100644
--- a/service/testgroup_c.lua
+++ b/service/testgroup_c.lua
@@ -1,11 +1,14 @@
 local skynet = require "skynet"
-local id = ...
+local group = require "mcgroup"
+local id, g = ...
 
 skynet.dispatch(function (msg,sz)
-	print(id, skynet.tostring(msg,sz))
+	print("===>",id, skynet.tostring(msg,sz))
 end
 )
 
 skynet.start(function()
-	print("start",id)
+	if g then
+		group.enter(tonumber(g))
+	end
 end)
diff --git a/skynet-src/skynet_server.c b/skynet-src/skynet_server.c
index 61d2d5af..91f13fa3 100644
--- a/skynet-src/skynet_server.c
+++ b/skynet-src/skynet_server.c
@@ -17,6 +17,8 @@
 #define BLACKHOLE "blackhole"
 #define DEFAULT_MESSAGE_QUEUE 16 
 
+#define CALLING_CHECK
+
 #ifdef CALLING_CHECK
 
 #define CHECKCALLING_BEGIN(ctx) assert(__sync_lock_test_and_set(&ctx->calling,1) == 0);
@@ -162,24 +164,28 @@ skynet_isremote(struct skynet_context * ctx, uint32_t handle, int * harbor) {
 	return ret;
 }
 
+static void
+_send_message(uint32_t des, struct skynet_message *msg) {
+	if (skynet_harbor_message_isremote(des)) {
+			struct remote_message * rmsg = malloc(sizeof(*rmsg));
+			rmsg->destination.handle = des;
+			rmsg->message = msg->data;
+			rmsg->sz = msg->sz;
+			skynet_harbor_send(rmsg, msg->source, msg->session);
+	} else {
+		if (skynet_context_push(des, msg)) {
+			free(msg->data);
+			skynet_error(NULL, "Drop message from %x forward to %x (size=%d)", msg->source, des, (int)msg->sz);
+		}
+	}
+}
+
 static int
 _forwarding(struct skynet_context *ctx, struct skynet_message *msg) {
 	if (ctx->forward) {
 		uint32_t des = ctx->forward;
 		ctx->forward = 0;
-		if (skynet_harbor_message_isremote(des)) {
-				struct remote_message * rmsg = malloc(sizeof(*rmsg));
-				rmsg->destination.handle = des;
-				rmsg->message = msg->data;
-				rmsg->sz = msg->sz;
-				skynet_harbor_send(rmsg, msg->source, msg->session);
-		} else {
-			if (skynet_context_push(des, msg)) {
-				free(msg->data);
-				skynet_error(NULL, "Drop message from %x forward to %x (size=%d)", msg->source, des, (int)msg->sz);
-				return 1;
-			}
-		}
+		_send_message(des, msg);
 		return 1;
 	}
 	return 0;
@@ -189,6 +195,17 @@ static void
 _mc(void *ud, uint32_t source, const void * msg, size_t sz) {
 	struct skynet_context * ctx = ud;
 	ctx->cb(ctx, ctx->cb_ud, 0, source, msg, sz);
+	if (ctx->forward) {
+		uint32_t des = ctx->forward;
+		ctx->forward = 0;
+		struct skynet_message message;
+		message.source = source;
+		message.session = 0;
+		message.data = malloc(sz);
+		memcpy(message.data, msg, sz);
+		message.sz = sz;
+		_send_message(des, &message);
+	}
 }
 
 static void