text: var io = require('socket.io').listen(5001),
      redis = require('redis').createClient();
  
  redis.subscribe('message-comment');
  
  io.on('connection', function(socket){
    redis.on('message', function(channel, message){
  
    	var data = JSON.parse(message);
    	var message_id = data.message_id;
    	var comment = data.comment;
  
      socket.emit('message-comment-' + message_id, comment);
    });
  });