File changed during save....

Stephen Zemlicka stevezemlicka at gmail.com
Mon Sep 17 15:28:17 GMT 2007


http://users.tkk.fi/~epenttil/rsync-vss/ 

_____________________________
Stephen Zemlicka
Integrated Computer Technologies
PH. 608-558-5926
E-Mail stevezemlicka at gmail.com 

-----Original Message-----
From: devzero at web.de [mailto:devzero at web.de] 
Sent: Sunday, September 16, 2007 5:16 PM
To: stevezemlicka at gmail.com; tony at servacorp.com
Cc: rsync at lists.samba.org
Subject: RE: File changed during save....

sounds interesting - are you speaking about a special rsync version or about
this helper script:

http://marc.info/?l=rsync&m=115822570129821&w=2

?

> -----Ursprüngliche Nachricht-----
> Von: "Stephen Zemlicka" <stevezemlicka at gmail.com>
> Gesendet: 16.09.07 19:43:54
> An:  "'roland'" <devzero at web.de>
> CC: <rsync at lists.samba.org>
> Betreff: RE: File changed during save....


> 
> If you're on windows, someone wrote a vss patch for rsync.  I haven't used
> it extensively though but it has worked for in-use outlook pst files so
far.
> I plan on testing it with exchange and sql databases in the near future.
> 
> _____________________________
> Stephen Zemlicka
> Integrated Computer Technologies
> PH. 608-558-5926
> E-Mail stevezemlicka at gmail.com 
> 
> -----Original Message-----
> From: rsync-bounces+stevezemlicka=gmail.com at lists.samba.org
> [mailto:rsync-bounces+stevezemlicka=gmail.com at lists.samba.org] On Behalf
Of
> Tony Abernethy
> Sent: Sunday, September 16, 2007 11:24 AM
> To: 'Matt McCutchen'; 'roland'
> Cc: rsync at lists.samba.org
> Subject: RE: File changed during save....
> 
> Matt McCutchen wrote:
> > 
> > On 9/15/07, roland <devzero at web.de> wrote:
> > > what`s the rsync equivalent to this?
> > > how can i see which files changed while rsync was 
> > transferring them ?
> > 
> > Handling of concurrent changes to source files is one of rsync's
> > weaknesses.  The rsync sender naively reads each source file from
> > beginning to end and sends what it sees; it doesn't detect if source
> > files change while being transferred.  In many cases, the concurrent
> > modification will leave the source file with an mtime different from
> > the mtime rsync saw when it statted the file during file-list building
> > (which gets set on the destination file), so a subsequent rsync run
> > will fix the corrupted destination file.  See this thread for more
> > information:
> > 
> > http://lists.samba.org/archive/rsync/2006-January/014534.html
> > 
> > Matt
> > -- 
> 
> Note that back-to-back rsyncs make the window of opportunity much
> much smaller for things to change during transit.
> 
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> 


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