Loadbalancing

[hohvn]

I have one issue when using load balancing. Please help me

fwrite(): send of 7 bytes failed with errno=32 Broken pipe

/var/www/vtvdigital/dungdetienroi.vtv.vn/moneydrop_node/protected/extensions/yii-node-socket/lib/vendor/elephant.io/lib/ElephantIO/Client.php(244)

232 * @return boolean 233 _/ 234 public function close() { 235 if ($this->fd) { 236 $this->write($this->encode(self::TYPE_DISCONNECT, Payload::OPCODECLOSE), false); 237 fclose($this->fd); 238 return true; 239 } 240 return false; 241 } 242 243 protected function write($data, $sleep = true) { 244 fwrite($this->getSocket(), $data); 245 // wait 100ms before closing connexion 246 if ($sleep) { 247 usleep(100 * 1000); 248 } 249 return $this; 250 } 251 252 / 253 * @return mixed 254 * @throws \RuntimeException 255 / 256 private function getSocket() {

[oncesk]

Hi, did you always get this error?

[hohvn]

yes, always :(

[oncesk]

this is bad, what length of your data? here https://github.com/whisller/IrcBotBundle/issues/7 sugestion by adding "\n\r" to data, if this will works this is a magic=)

can you try send small data package? and what logs on nodejs server side?

[hohvn]

i added "\n\r" but it not work. Here is nodejs server log

info: socket.io started Listening moneydrop.vtvd.vn:8080 Set origin: moneydrop.vtvd.vn:* debug: setting request GET /socket.io/1/websocket/KSWaZqJTUJzB59dG1Ieg debug: set heartbeat interval for client KSWaZqJTUJzB59dG1Ieg debug: websocket writing 7:::1+0 warn: client not handshaken client should reconnect info: transport end (error) debug: set close timeout for client KSWaZqJTUJzB59dG1Ieg debug: cleared close timeout for client KSWaZqJTUJzB59dG1Ieg debug: cleared heartbeat interval for client KSWaZqJTUJzB59dG1Ieg debug: discarding transport

[hohvn]

you can online debug here http://moneydrop.vtvd.vn/moneydrop_node/index.php?r=home/login username:1 password:1

[oncesk]

warn: client not handshaken client should reconnect

somthing wrong with handshake

[hohvn]

http://moneydrop.vtvd.vn/moneydrop_node/index.php?r=home/login username:1 password:1

please edit hosts: 123.30.211.13 moneydrop.vtvd.vn

[oncesk]

try @

[hohvn]

I use loadbalancing. have two server. When show Login Form, LB in Server 1, but nodejs client connect Server 2. i thinks it is issue

[hohvn]

okie

[oncesk]

ii understand this but you connect to nodejs from php

where nodejs server installed, on which server?

[hohvn]

Nodejs install on 2 server. I duplicated it

[oncesk]

can you show you node-socket component configuration in config file?

[oncesk]

seems like you connect via domain to nodejs and load balancer redirect you to other server, maybe add 127.0.0.1 moneydrop.vtvd.vn to /etc/hosts on your servers

[hohvn]

Loadbalancing: 123.30.211.13 listen port 6666 for nodejs

Server1: 123.30.211.16 NodeJS in Server 1 run port 8080 Server2: 123.30.211.5 NodeJS in Server2 run port 8080

Client connect to websocket server at 123.30.211.13:6666

Server1: console.php return array( 'basePath'=>dirname(FILE).DIRECTORY_SEPARATOR.'..', 'name'=>'My Console Application',

    // preloading 'log' component
    'preload'=>array('log'),

    // application components
    'components'=>array(
    'nodeSocket' => array(
        'class' => 'application.extensions.yii-node-socket.lib.php.NodeSocket',
      //  'host' => '192.168.100.111',  // default is 127.0.0.1, can be ip or domain name, without http
        'host' => 'moneydrop.vtvd.vn',

'loadbalancing_host' => 'moneydrop.vtvd.vn', 'loadbalancing_port' => 6666, 'port' => 8080 // default is 3001, should be integer ) ), 'commandMap' => array( 'server' => 'application.extensions.yii-node-socket.lib.php.NodeSocketCommand' ) ); main.php

'nodeSocket' => array( 'class' => 'application.extensions.yii-node-socket.lib.php.NodeSocket', // 'host' => '192.168.100.111', // default is 127.0.0.1, can be ip or domain name, without http 'host' => 'moneydrop.vtvd.vn', 'port' => 6666 // default is 3001, should be integer ),

Server 2 like it

[oncesk]

now i use your config and i have no errors, can you see nodejs logs?

[oncesk]

and i think this is not correct for nodejs because nodejs storing data in memory in this case data on server 1 and server 2 may be different, you can get strange behavior using this configuration, use can be logged in on server 1 but on server 2 is not

[hohvn]

oh, you need edit file client.template.js function YiiNodeSocket() { .... var server_host = 'http://<?php echo $nodeSocket->host;?>:<?php echo $nodeSocket->port;?>/client'; var is_loadbalancing = '<?php echo $nodeSocket->loadbalancing_host;?>'; if(is_loadbalancing != ''){ server_host = 'http://<?php echo $nodeSocket->loadbalancing_host;?>:<?php echo $nodeSocket->loadbalancing_port;?>/client'; }

[oncesk]

i test it in php

[hohvn]

okie, i'll check it. thanks you so much

[cannycookie]

Hey Hovn, did you get success with Load Balancing? We have same situation...

[oncesk]

hi, your nodejs logs the same like above?

[cannycookie]

We haven't tested on 2 servers at same time yet, I'm just trying to understand if it's possible to make it work with a cluster.

[oncesk]

its possible, but need some work, your need something like memcache or redis for node synchronization, somewhere i did it

• socket.io can do it from 1.0 version, your only need add some configuration, but you need to implement you nodejs and php (using elephantio of newer version) logic by yourself
• implement it in this extension, you need to broadcast packages to all your nodes, i have some code for this purpose
• does not use loadbalancer for nodejs

maybe in newer versions of socket.io that really simple, i do not watch socket.io changes now

[cannycookie]

Thank you Oncesk, we have patched elephant.io already. Will have a play and see what happens. Any suggestion on best method for autostart. Upstart seems to be a good solution: http://howtonode.org/deploying-node-upstart-monit

[oncesk]

not at all)