The challenge is to maintain unique web server log across the nodes.
Any clue about that ?
Again for pages which send emails, all nodes must have running
postfix with same domain.
I'm also wondering how to do that.
For log files, we use rsync to put all the logs on one machine after they are rotated. That means it may take 24 hours before the logs are received, but on servers that don't have shared storage, that it probably the easiest way.