diff --git a/examples/cluster1.lua b/examples/cluster1.lua
index 0eca6176..70d20044 100644
--- a/examples/cluster1.lua
+++ b/examples/cluster1.lua
@@ -3,6 +3,11 @@ local cluster = require "cluster"
 local snax = require "snax"
 
 skynet.start(function()
+	cluster.reload {
+		db = "127.0.0.1:2528",
+		db2 = "127.0.0.1:2529",
+	}
+
 	local sdb = skynet.newservice("simpledb")
 	-- register name "sdb" for simpledb, you can use cluster.query() later.
 	-- See cluster2.lua
diff --git a/examples/config.c1 b/examples/config.c1
index 436859d4..0ebb4e9c 100644
--- a/examples/config.c1
+++ b/examples/config.c1
@@ -6,5 +6,6 @@ bootstrap = "snlua bootstrap"	-- The service for bootstrap
 luaservice = "./service/?.lua;./test/?.lua;./examples/?.lua"
 lualoader = "lualib/loader.lua"
 cpath = "./cservice/?.so"
-cluster = "./examples/clustername.lua"
+-- use cluster.reload instead, see cluster1.lua
+-- cluster = "./examples/clustername.lua"
 snax = "./test/?.lua"
diff --git a/lualib/cluster.lua b/lualib/cluster.lua
index 9883227f..3b180753 100644
--- a/lualib/cluster.lua
+++ b/lualib/cluster.lua
@@ -21,8 +21,8 @@ function cluster.open(port)
 	end
 end
 
-function cluster.reload()
-	skynet.call(clusterd, "lua", "reload")
+function cluster.reload(config)
+	skynet.call(clusterd, "lua", "reload", config)
 end
 
 function cluster.proxy(node, name)
diff --git a/service/clusterd.lua b/service/clusterd.lua
index 22d5e9f0..20c43ee7 100644
--- a/service/clusterd.lua
+++ b/service/clusterd.lua
@@ -29,12 +29,16 @@ end
 
 local node_channel = setmetatable({}, { __index = open_channel })
 
-local function loadconfig()
-	local f = assert(io.open(config_name))
-	local source = f:read "*a"
-	f:close()
-	local tmp = {}
-	assert(load(source, "@"..config_name, "t", tmp))()
+local function loadconfig(tmp)
+	if tmp == nil then
+		tmp = {}
+		if config_name then
+			local f = assert(io.open(config_name))
+			local source = f:read "*a"
+			f:close()
+			assert(load(source, "@"..config_name, "t", tmp))()
+		end
+	end
 	for name,address in pairs(tmp) do
 		assert(type(address) == "string")
 		if node_address[name] ~= address then
@@ -47,8 +51,8 @@ local function loadconfig()
 	end
 end
 
-function command.reload()
-	loadconfig()
+function command.reload(source, config)
+	loadconfig(config)
 	skynet.ret(skynet.pack(nil))
 end