--link-dest not working with rsync daemon?

Alberto Accomazzi aaccomazzi at cfa.harvard.edu
Mon Jan 26 21:14:14 GMT 2004

I am puzzled as to why I can't get the option --link-dest to work 
properly.  When I use this option when both source and destinations are 
on a local filesystem the hard-linking of the target against the 
link-dest directory does work, but when the source is a remote directory 
(via ssh or rsync server) hard links are not created.  I suspect it has 
something to do with setting the correct timestamp on the files, since 
the server and client machines have clocks with a large offset, but why 
would that be the case?

The version of rsync I'm using is:
rsync  version 2.6.0  protocol version 27
Copyright (C) 1996-2004 by Andrew Tridgell and others
Capabilities: 64-bit files, socketpairs, hard links, symlinks, batchfiles,
               IPv6, 64-bit system inums, 64-bit internal inums

The distribution is fedora core 1 with kernel 2.4.22-1.2140.nptl.  Below 
you can see the results of my test.  Any help is appreciated.


-- Alberto

[ads at localhost ~/rsynctest]$ rsync 
drwxr-xr-x        4096 2004/01/26 15:17:47 .
-rw-r--r--           4 2004/01/26 15:17:47 foo

[ads at localhost ~/rsynctest]$ date
Mon Jan 26 14:59:16 EST 2004

[ads at localhost ~/rsynctest]$ cat ./runtest.sh

/bin/rm -rf orig new

# echo getting original copy
$HOME/mirror/bin/i486-linux/rsync-2.6.0 --timeout 1800 --delete -az \
     rsync://adswon.cfa.harvard.edu/ast/load/test/ \

# echo getting second copy
$HOME/mirror/bin/i486-linux/rsync-2.6.0 --timeout 1800 --delete -az "$@" \
     --link-dest=`pwd`/orig/ \
     rsync://adswon.cfa.harvard.edu/ast/load/test/ \

/bin/ls -l `pwd`/orig `pwd`/new

[ads at localhost ~/rsynctest]$ ./runtest.sh -vvv
opening tcp connection to adswon.cfa.harvard.edu port 873
receiving file list ...
received 2 names
recv_file_list done
get_local_name count=2 /home/ads/rsynctest/new/
created directory /home/ads/rsynctest/new
expand file_list to 4000 bytes, did move
send_file_list done
deleting in .
recv_files(2) starting
generator starting pid=1001 count=2
delta transmission enabled
set modtime of . to (1075148267) Mon Jan 26 15:17:47 2004
generating and sending sums for 1
count=1 rem=4 blength=700 s2length=2 flength=4
generate_files phase=1
recv mapped foo of size 4
got file_sum
renaming .foo.cJC1Ra to foo
set modtime of foo to (1075148267) Mon Jan 26 15:17:47 2004
recv_files phase=1
generate_files phase=2
set modtime of . to (1075148267) Mon Jan 26 15:17:47 2004
recv_files finished

wrote 127 bytes  read 139 bytes  532.00 bytes/sec
total size is 4  speedup is 0.02
_exit_cleanup(code=0, file=main.c, line=1064): about to call exit(0)
total 4
-rw-r--r--    1 ads      ads             4 Jan 26  2004 foo

total 4
-rw-r--r--    1 ads      ads             4 Jan 26  2004 foo

Alberto Accomazzi, NASA Astrophysics Data System    http://ads.harvard.edu
Harvard-Smithsonian Center for Astrophysics     http://cfa-www.harvard.edu
60 Garden St, MS 31, Cambridge, MA 02138, USA   aaccomazzi at cfa.harvard.edu

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