Wierd problem with rysnc.
Sri Ramkrishna
sramkris at ichips.intel.com
Fri Jan 25 11:17:18 EST 2002
Okay, thats pretty fair. Here is what I'm trying to say.
The source directory tree has:
/a/b/c/d/
which has a bunch of subdirectories (say x,y,z} in it. Because we don't
want to mirror every subdirectory in the d/ directory we have individual
rsyncs that copy different subdirectories to a destination tree.
The destination is
/f/g/h/i/
and I have an rsync command that looks
like this thats run for each subdirectory in the source {x,y,z etc}.
rsync --archive --delete --backup --suffix=.backup
-rsync-path=/some/stdpath/to/rsync --exclude-from=/var/tmp/exclude-file srchost:/a/b/c/d/x/ desthost:/e/f/g/h/x/
we do this for y, z subdirectories etc.
Each of these subdirectories {x,y,z} have certain subdirectories where
there are files we want to exclude. So lets say that the "x" subdirectory
has a directory called "ath_version1". There might be other directories like
"ath_version2" also under the x/ directory tree.
We have an exclude file that looks like this:
ath_version1/bin/cse_plot.csh
ath_version1/bin/cse_plot.csh_shigeki
ath_version1/bin/RCS/cse_plot.csh,v
On the source side cse_plot.csh is a real file. On the destination
the cse_plot.csh is a symlink that points to cse_plot.csh_shigeki.
When rsync runs, the cse_plot.csh (a symlink) is replaced by the
source copy of the cse_plot.csh file. However, other files are not
touched. cse_plot.csh_shigeki for instance doesn't exist on the source
side and is left alone. We have put other symlinks that point to the
cse_plot.csh_shigeki as well in there but those have been deleted not
replaced with real files (because they is no corresponding file in the source
to replace it)
The symlink cse_plot.csh points to cse_plot.csh_shigeki which is not in RCS.
When we made a copy of cse_plot.csh_shigeki and checked in RCS, rsync didn't
delete the copy. Seems the rsync can not handle symlink properly.
I sometimes add rsync with a --verbose --verbose --verbose option but the log
doesn't tell me anythign about why it deleted the symlink.
Any help would be great.
sri
On Wed, Jan 23, 2002 at 01:26:55PM -0600, Dave Dykstra wrote:
> I am unaware of anybody else reporting a similar problem. My guess is that
> your experimentation with different rsync exclude options is actually the
> cause of the problem; they can be very tricky to understand. Give us the
> complete command line you're using and describe in detail exactly what
> is happening, including file names. If you can narrow it down to a simple
> example that somebody else could follow to reproduce the problem, that
> would be the best.
>
> - Dave Dykstra
>
> On Wed, Jan 23, 2002 at 10:52:21AM -0800, Sri Ramkrishna wrote:
> > I'm responding to my own mail. I'm adding some extra detail. Yesterday,
> > we added another symlink that points to the same file as the symlink that
> > was being deleted. The symlink was put into the excluded file and when
> > the test was run, the sample symlink was intact but the original symlink was
> > removed and still nothing in the logs saying it had removed the file.
> >
> > When we removed the symlink and replaced it with a file then the file
> > was untouched while the symlink was deleted.
> >
> > sri
> >
> > On Tue, Jan 22, 2002 at 10:29:10PM -0800, Sri Ramkrishna wrote:
> > >
> > > Hi folks, I'm having a problem with my rsync between two areas between a WAN.
> > > The problem is really odd. I have a script that runs every night. Lately,
> > > we've been having problems with rsync. The source side is an ordinary file
> > > while the destination side is a symlink. We've been having problems with rsync
> > > deleting the symlink and repacing it with the source copy despite having it in
> > > the exception list.
> > >
> > > The problem only occurs sporadically, it might not happen one day but happen at
> > > another. I ruled out some other process deleting it by running the script at a
> > > certain time after putting the symlink back. I had tried putting exceptions
> > > for the whole directory and that didn't help either. I also ran it with a
> > > couple of verbose options and the log of that didn't show it had deleted
> > > anything ever though after the script ran the symlink disappeared.
> > >
> > > So, I'm looking for a litle advice on how to proceed? Thanks!
> > >
> > > sri
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