observing/red — Issue #2: Optimize sending message
Author: 3rd-Eden
Created: 2012-02-21 12:12:16+00:00
State: open

## Description
When we send a message we are now calling `engine#publish` which does a publish to all connected nodes. When you cluster is growing in size (nodes) this will create a lot of pointless overhead because node's that doesn't have user connected will also receive this message.

## Possible solutions

- When a user connects to a RED node, we are going to store the `hostname` and `process id` and put that in Redis. So when we need to send a message to that user, we can fetch the sessions connected nodes and only broadcast to those. This probably also requires the `engine` to listen to another for dedicated messaging`