Monitor a folder

[Dave Morrow]

Hi all.  Please forgive me if this question is of the "RTFM" variety.  I am new to Rsync and just attempting to determine if it will meet my needs with respect to one problem I am attempting to solve.

I have a web application which is running on Apache2/PHP which allows users to upload files.  I would like to add a redundant server for load-balancing and failover purposes but need to ensure that the "uploads" directory is appropriately replicated to the second server.  Thus, my question is; can Rsync monitor a folder or filesystem for changes and perform it's synchronization when changes occur as opposed to being "cron'd" to run at specified intervals?  If not, does anyone know of a decent way to handle such things?  I am running on a Linux platform (RHEL4).

David A. Morrow
Technical Systems Lead
Autodata Solutions Company
David.Morrow at Autodata.Net
http://www.autodata.net
Tel: (519) 951-6079
Fax: (519) 451-6615 

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