I have 2-3 load balanced LAMP (Linux-Apache-MySQL-PHP) servers that I want to keep in sync
WebData (html, php scripts and images...etc everything under /var/www/html) should be synced between the 3 servers.
I have already looked at the following
1- DRBD and the problem is that it only works as primary-secondary meaning the main node can have read/write while other nodes cannot have neither read or write.
2- Rsync ( The best thing is running a one minute cron or construct a script under cron for less time but this is not very efficient
3- I dont have a storage thus NFS is not an option for me and I dont want to invest in another machine to act as storage (Plus I dont want another single point of failor that requires HA)
Bottom point , I want something like DRBD but that does not have restrictions on the other nodes.
Thanks in advance