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Date:	Fri, 16 Oct 2009 13:51:29 -0700
Message-ID:	<2bbbac860910161351s276fe178h98b9d6689808c50@mail.gmail.com>
Subject:	Rsync link-dest not working for a host with the most recent rsync/cygwin 1.7
From:	Chris Francy <francyci AT gmail DOT com>
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It appears something about the about rsync or the 1.7 version of
cygwin is preventing the --link-destination function of rsync from
working.  Files that have not been changed at all should be linked
together.  On the hosts still running a cygwin 1.5 version of rsync
the link-destination seems to work exactly as I expect it to.

I am using dirvish (http://www.dirvish.org/) on a Linux box (deb
5.0.3) to backup some of the data on windows boxes in the network.  I
have the cygwin+rsync setup in daemon mode on the servers.  I recently
upgraded a couple of the boxes to the latest cygwin 1.7.  On the
systems with cygwin 1.5 files are occasionally missed because of the
path length limitations so I really want to get a cygwin 1.7 setup
working.

This is the command that is being issued by dirvish to perform the backup.

rsync -vrltH --delete -pgo --stats -z -D --numeric-ids --timeout=300
--exclude-from=/srv/dirvish/srv-01/2009101610/exclude
--link-dest=/srv/dirvish/srv-01/2009101420/tree 10.2.35.241::data/
/srv/dirvish/srv-01/2009101610/tree

Here is the checksums and the output of stat of two files on my Linux
box that I should have been linked together.  No changes where made to
this file on the windows box between the first and second backups.

root AT pabil:# sha256sum 2009101420/tree/staff/Supply\ letter\
preschool.doc   2009101610/tree/staff/Supply\ letter\ preschool.doc
35cac3b2f0a54199da06c7ffdd5addf8634fa1d0829c11be8af037cf5572ddd1
2009101420/tree/staff/Supply letter preschool.doc
35cac3b2f0a54199da06c7ffdd5addf8634fa1d0829c11be8af037cf5572ddd1
2009101610/tree/staff/Supply letter preschool.doc

root AT pabil:# stat 2009101420/tree/staff/Supply\ letter\ preschool.doc
 2009101610/tree/staff/Supply\ letter\ preschool.doc
File: `2009101420/tree/staff/Supply letter preschool.doc'
  Size: 22016     	Blocks: 48         IO Block: 4096   regular file
Device: fd02h/64770d	Inode: 12042401    Links: 1
Access: (0700/-rwx------)  Uid: (  544/ UNKNOWN)   Gid: (    0/    root)
Access: 2009-10-14 20:50:32.000000000 -0700
Modify: 2005-08-26 13:58:39.000000000 -0700
Change: 2009-10-14 20:50:32.000000000 -0700
File: `2009101610/tree/staff/Supply letter preschool.doc'
  Size: 22016     	Blocks: 48         IO Block: 4096   regular file
Device: fd02h/64770d	Inode: 29475538    Links: 1
Access: (0700/-rwx------)  Uid: (  544/ UNKNOWN)   Gid: (    0/    root)
Access: 2009-10-16 10:51:06.000000000 -0700
Modify: 2005-08-26 13:58:39.000000000 -0700
Change: 2009-10-16 10:51:06.000000000 -0700

I have posted the output of 'cygcheck -s -v -r' here
(http://pastebin.com/m68d01c02).

I would appreciate some help getting the --list-dest to work properly.
 If you have some ideas please share.  If you need more information to
help diagnose or find a solution please ask.

Thanks,
Chris Francy

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