BackupPC-users

Re: [BackupPC-users] Unexpected call BackupPC::Xfer::RsyncFileIO->unlink(...)

2009-12-19 08:49:00
Subject: Re: [BackupPC-users] Unexpected call BackupPC::Xfer::RsyncFileIO->unlink(...)
From: Tim Connors <tconnors AT rather.puzzling DOT org>
To: "General list for user discussion, questions and support" <backuppc-users AT lists.sourceforge DOT net>
Date: Sun, 20 Dec 2009 00:30:06 +1100 (EST)
On Sat, 19 Dec 2009, Holger Parplies wrote:

> Hi,
>
> Jeffrey J. Kosowsky wrote on 2009-12-18 15:36:48 -0500 [Re: [BackupPC-users] 
> Unexpected call?BackupPC::Xfer::RsyncFileIO->unlink(...)]:
> > Jeffrey J. Kosowsky wrote at about 13:11:37 -0500 on Monday, November 2, 
> > 2009:
> >  > Unexpected call 
> > BackupPC::Xfer::RsyncFileIO->unlink(cygwin/usr/share/man/man3/addnwstr.3x.gz)
> >  >
> >  > [...]
> >  >
> >  > Note from the below quoted thread from 2005, Craig claims that the error 
> > is
> >  > benign, but doesn't explain how/why.
> >
> > [...]
> >
> > I am curious about what could be causing this situation [...]
>
> if you're curious about what is causing a benign warning message, you're
> probably on your own for the most part. I can supply you with one casual
> observation and one tip:
>
> I think I saw that warning when I changed from tar to rsync XferMethod. As you
> know, tar and rsync encode the file type "plain file" differently in attrib
> files (rsync has a bit for it, tar (like stat()) doesn't and simply takes the
> absense of a bit for a special file type to mean "plain file"). When rsync
> compares remote and local file type (remote from remote rsync instance, local
> from attrib file generated by tar XferMethod), it assumes a plain file changed
> its type, so it removes the local copy [...]

I get it whenever any file gets replaced by a symlink courtesy of some
debian update (or vice versa - when a symlink gets replaced by a real
file?).

-- 
TimC
Beware of bugs in the above program. I proved it correct,
I did not try it.                   --- D. E. Knuth

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