socketio-scale-demo

Simple demo of using socket io redis adapter for scaling sockets

How to use it

1. npm install
2. Run PORT=3000 node index.js from one terminal
3. Run PORT=3001 node index.js from another terminal
4. Open both urls in browser and try typing some message on both.
5. You can see that messages are sent between those server processes and displayed on web page.
6. Try to Remove

var redis = require('socket.io-redis');
io.adapter(redis({ host: 'localhost', port: 6379 }));

To see that in this case, the messages won't be sent to both server instances.