Use several socket.io processes with redis as datastore
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Readme.md
client.js
server.js

Readme.md

Multiple socket.io processes with redis

By default configuration, socket.io uses the memory (MemoryStore) to hold open connections. Hence it is not possible to run several socket.io processes, because the processes won't know nothing about the open connections of the other processes. But it's quite easy to use redis as store, which allows to share the open connections between several socket.io processes, which run on different ports.

You can use some kind of load balancer to distribute workload or use nodes http proxy module node-http-proxy to access the processes.

Usage

Install node.js: http://nodejs.org/

npm install socket.io
npm install socket.io-client
npm install redis

Install and run redis: http://redis.io/download/

Run two socket.io server processes:

node server.js // default port is 8090
node server.js 8091
node server.js 8092
...

Start as much clients you like:

node client.js // default port is 8090
node client.js 8091
node client.js 8092