nodejs response data multiply - node.js

Question

i made an app with socket.io.my problem is when i close node and open again server response count is up.first time 1 resutlset sending but second time 2 and third time 3 and so on? what is the problem
client code is
<script>
var socket = io.connect('http://10.0.0.192:8888');
socket.on('connecting', function () {
console.log('connecting');
});
socket.on('connect', function(s){
console.log('connect');
socket.emit('Baglan');
console.log('emit-Baglan');
socket.on('guncelle',function(data){
console.log(new Date().getMilliseconds());
console.dir(data);
});
});
socket.on('reconnecting', function () {
console.log('reconnecting');
});
socket.on('reconnect', function () {
console.log('reconnect');
});
socket.on('reconnect_failed', function () {
console.log('reconnect_failed');
});
</script>
and server
function getDataForClients() {
var d = new Array();
d.push({records:res});
//console.log(d);
return d;}
function onRequest(request, response) {
var pathname = url.parse(request.url).pathname;
//console.log("Request for " + pathname + " received.");
route(handle, pathname, response, request);
}
server = http.createServer(onRequest);
io = require('socket.io').listen(server);
io.set('log level', 1);
io.sockets.on('connection', function (client) {
//console.log(client);
client.on("Baglan",function(){
//console.log("user connected");
__sockets.push(client);
client.room="weather";
client.records=[];
client.join(client.room);
if(!res)
guncelle(false,client);
else
client.emit("guncelle",getDataForClients());
});
client.on('disconnect', function(){
var i = __sockets.indexOf(client);
__sockets.splice(i,1);
client.leave(client.room);
//console.log("user leave");
});
});
server.listen(8888);
function guncelle(v,c) {
//console.log("update");
var db = mysql.createClient({
user: 'user',
password: '***',
});
db.query('USE '+TEST_DATABASE);
db.query(
"select * from table",
function selectCb(err, results, fields) {
if (err) {
throw err;
}
res = results;
var _data = getDataForClients();
if(v)
io.sockets.emit("guncelle",_data);
else
c.emit("guncelle",_data);
db.end();
}
);
}
there are 5 result between 15 ms.
sorry i cant post image.