On Thursday 7 Feb 02, Pat writes:
> On Sun, Feb 03, 2002 at 12:37:08PM -0600, Pat wrote:
> > I've installed the latest cygwin 1.3.9 in order to use the rsync daemon.
> > I have a setup that works fine under Solaris and basic mirroring works
> > to my cyginw box. However when I use the rsync "-backup" option (which tells
> > rsync to save copies of modified files, necessary for incremental backups)
> > rsync backs up all of the files every time...
>
> I've determined that the problem is more fundamental... Even without
> the -backup behavior the cygwin rsyncd causes many many files to be
> copied even whn they have not been modified.
>
> I thought perhaps it was because Win98 would not properly preserve
> ownership or permissions, so I removed those options (stopped using -a)
> and specified only recursion, time stamp, and links. I also believe that
> directories are not preserved in a case sensitive way (two dirs differing
> only by case cause problems for cygwin), but that is not the issue either...
>From the rsync man page:
--modify-window
When comparing two timestamps rsync treats the
timestamps as being equal if they are within the
value of modify_window. This is normally zero, but
you may find it useful to set this to a larger
value in some situations. In particular, when
transferring to/from FAT filesystems which cannot
represent times with a 1 second resolution this
option is useful.
Try --modify-window=2. Let us know if that's the right solution.
> Basically I think rsync under cygwin is just behaving badly.
On Win98. Not Cygwin's fault.
Lapo, that might be a good thing to mention in the
/usr/doc/Cygwin/rsync-<ver>.README file.
David
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