building a net of socket.io servers

[Toni Wagner]

Hi,

i am looking for an elegant way to scale socket.io across servers. I have an app based on nodeJS and socket.io and i need connected clients to dynamically talk to one-another.

my communication system creates independent rooms for single users, and usergroups (clients only talk to one another in usergroup-rooms). 

Obviously, we will have multiple servers, but I do not want to use the database to sync client<->client interactions. hence, i have to somehow link/sync multiple socket.io servers.

now my question is: 

is there an easy way (or already present open source project) that makes socket.io servers join rooms on other servers and 'syncs' their messages to own clients?

or in other words: 

can i spread ONE ROOM across multiple independent socket.io servers ?

or:

is there a more clever way to scale socket.io that i'm missing?

in any case, tnx for the terrific work with socket.io!!

Toni

[Marak Squires]

I use hook.io for stuff like this, maybe it can help.

http://github.com/hookio/hook.io

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Marak Squires

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[derek buchner]

I've been routing the messages via Redis' pubsub. Basically, the socket servers subscribe to the channels in which the connections/clients have requested membership in. When a message arrives, you publish on that room. The socket servers then pick up the message and emit to those in the target room.

The module was node_redis, "npm install redis".

Derek

[Toni Wagner]

great, thanks guys! I will look into both suggestions over the weekend. Still, i am a bit surprised that there is no 'native' solution for the general problem of scaling socket.io across server instances  from the socket.io team / community.

I am considering to start such a project, maybe based on your suggestions..

cheers,

t

2012/3/8 derek buchner <dlbu...@gmail.com>

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[Marak Squires]

Like I said, hook.io does this.