Take a look at the Services module, if you are not familiar with it. Allows one to expose APIs, which could be used for cluster node communications.
I've made such a setup for a few clients, and am building one now at the RackSpace cloud that is planned to hook into their scaling API to dynamically scale. 

Sincerely,
-Blake

On Oct 30, 2010, at 5:25 AM, Damian Adriel Perez Valdes wrote:

Hi:

Can I make a something like a cluster with Drupal ?

I need to install Drupal some servers, and that information of one drupal sync with a center server, and the others servers too.

Exits some module to do it ?

Thanks.