Sync'ng directories between two servers ...

Bill Moran wmoran at
Wed Feb 7 15:33:32 UTC 2007

In response to Chuck Swiger <cswiger at>:

> Marc G. Fournier wrote:
> >   I've got a directory on ServerA that I would like to keep sync'd on ServerB 
> > ... to date, I've been using rsync for this, but what I hate with that is that 
> > it has to scan the whole directory on both servers to compare, putting a good 
> > load on each of them ...
> > 
> >   Is there anything out there that ppl are using successfully that just looks 
> > at ServerA, and dumps across those files that have changed since the last sync? 
> > ServerB will never have any changes made to it, other then what ServerA sends 
> > across ...
> Rsync is about as good as it reasonably gets, short of putting everything 
> explicitly under version control (ie, in SVN or CVS).  If you do put the tree 
> of stuff under VC, doing an update operation on ServerB will only need to 
> fetch the deltas made since the last update, without doing a comparison of the 
> unchanged files or placing much load on ServerA.

You know, it'd be cool if there was some way to hook rsync in to FAM (or
a similar utility).  I found some discussion about this on the rsync
mailing list.  The response seems to indicate that it's more work than
it seems.  I wish I had time to investigate this, as it sounds like an
interesting project.

Bill Moran
Collaborative Fusion Inc.

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