how can I prevent node from outputting the data that I emit using io.sockets.emit(...)? I am not manually logging the data. I expect to have hundreds of users connecting to the node server, so I don't want the terminal window going crazy. Any help is appreciated.
You need set log level option to 0 like this:
var io = require('socket.io').listen(port, host);
io.set('log level', 0);