[Cialug] instant replication with rsync

[David Bierce]

You can monitor the directories on the disk and look for changes then  
execute a script on an interval or when the change happens.

Easy scriptable tools.

http://inotify-tools.sourceforge.net/

Dave

On Jan 13, 2009, at 11:37 AM, Matthew Nuzum wrote:

> Is there a way to use rsync (or a similar tool) to get near instant  
> replication?
>
> Scenario, you have a website that allows users to upload images. Files
> are uploaded several times per day at unpredictable intervals. You
> want the images to appear instantly regardless of which webserver they
> were uploaded on.
>
> Setting rsync to run at 1min intervals would not do this because if
> you upload an image you want to see it right away. Also, on a busy day
> there may be 10 - 20 images uploaded. If you have multiple servers
> running rsync at one min intervals it would be a bit wasteful.
>
> -- 
> Matthew Nuzum
> newz2000 on freenode, skype, linkedin, identi.ca and twitter
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