QuickStart

0) Check, do you install high perfomance ext-event extension (libevent)

http://socketo.me/docs/deploy#evented-io-extensions

https://github.com/reactphp/event-loop#exteventloop

https://bitbucket.org/osmanov/pecl-event/src/530d542a9e828ad23063a483164e6ff15aee157b/INSTALL.md?fileviewer=file-view-default

Connections	stream_select	libevent
100	10.656	9.298
500	11.175	9.791
800	17.327	9.709
1000	23.282	9.749

https://www.pigo.idv.tw/archives/589

1) Define your pool (config/services.yaml)

wampserver_broadcast: ['127.0.0.1:8095', '127.0.0.1:8097', '127.0.0.1:8099']

2) Exclude this node

$key = array_search($this->websocket_this_node, $this->wampserver_broadcast);

unset($this->wampserver_broadcast[$key]);

3) Run your nodes

bin/console server:run --port=8095

bin/console server:run --port=8097

bin/console server:run --port=8099

4) Setup NGINX (as load balancer)

upstream socket {
    server 127.0.0.1:8095;
    server 127.0.0.1:8097;
    server 127.0.0.1:8099;
}

map $http_upgrade $connection_upgrade {
    default upgrade;
    ''      close;
}

server {
	server_name 127.0.0.1;
	listen 8090;

	proxy_next_upstream error;
	proxy_set_header X-Real-IP $remote_addr;
	proxy_set_header X-Scheme $scheme;
	proxy_set_header Host $http_host;

	location / {
		proxy_pass http://socket;
                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection "upgrade";
                proxy_set_header Host $host;

                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set_header X-Forwarded-Proto https;
                proxy_read_timeout 86400; # neccessary to avoid websocket timeout disconnect
                proxy_redirect off;
	}
}

http://nginx.org/en/docs/http/load_balancing.html http://nginx.org/en/docs/http/websocket.html

Installation

1. composer req andreybolonin/ratchet-multi-instance

2. Inject use RatchetMultiInstanceTrait; into your Topic class

3. Add broadcast/channel into you Topic class

public function onPublish(ConnectionInterface $connection, $topic, $event, array $exclude, array $eligible)
{
    switch ($topic->getId()) {
     case 'counter/channel':
         $this->CounterTopic($connection, $topic, $event, $exclude, $eligible);
         break;
    
     case 'price/channel':
         $this->PriceTopic($connection, $topic, $event, $exclude, $eligible);
         break;
    
     case 'broadcast/channel':
         $this->BroadcastTopic($connection, $topic, $event, $exclude, $eligible);
         break;
    }
}

4. Send the $topic->broadcast($event) with $this->broadcast($event) for broadcasting in another WampServer nodes

Arch

5) Symfony Bundle

https://github.com/andreybolonin/RatchetBundle