rsync - Feb 2005 - [HELP] Rsync to remote machine sometimes produces different binaries

hi,

i'm using

machine 1 (SuSE 9.0 32Bit): rsync 2.6.2 (from SuSE RPM)
machine 2 (SuSE 9.1 64Bit): rsync 2.6.2 (from SuSE RPM)

my command looks like the following:
/usr/bin/rsync -W --progress --rsync-path=/usr/local/bin/rsync -e ssh 
--delete --force -av /data/ machine2:/data/machine1/

after rsyncing both machines, some files differ !
i verified these differences with "diff", hexdump and
"md5sum"

the files are e.g. normal excel files
when i look in them, they seem to be the same, but why do they differ 
with integrity check?

"-c" is no alternative for me hence it takes hours to verify 1.000.000
files!!!

if i delete the file on the target machine and rerun rsync, the file is 
ok - but this way i always have to check manually for differences 
between files and rsync is no help here for automatic backups

please help
i need it for backup purposes!!
thanks
-- 


                  Michael Gasch

            - Central IT Department -

Max Planck Institute for Evolutionary Anthropology
Deutscher Platz 6
04103 Leipzig

Germany

[update]

at the moment there're just .xls documents, which have this behaviour
hope this helps!!!

Michael Gasch wrote:
> hi,
> 
> i'm using
> 
> machine 1 (SuSE 9.0 32Bit): rsync 2.6.2 (from SuSE RPM)
> machine 2 (SuSE 9.1 64Bit): rsync 2.6.2 (from SuSE RPM)
> 
> my command looks like the following:
> /usr/bin/rsync -W --progress --rsync-path=/usr/local/bin/rsync -e ssh 
> --delete --force -av /data/ machine2:/data/machine1/
> 
> after rsyncing both machines, some files differ !
> i verified these differences with "diff", hexdump and
"md5sum"
> 
> the files are e.g. normal excel files
> when i look in them, they seem to be the same, but why do they differ 
> with integrity check?
> 
> "-c" is no alternative for me hence it takes hours to verify
1.000.000
> files!!!
> 
> if i delete the file on the target machine and rerun rsync, the file is 
> ok - but this way i always have to check manually for differences 
> between files and rsync is no help here for automatic backups
> 
> please help
> i need it for backup purposes!!
> thanks

-- 


                  Michael Gasch

            - Central IT Department -

Max Planck Institute for Evolutionary Anthropology
Deutscher Platz 6
04103 Leipzig

Germany

On Sat, Feb 05, 2005 at 11:12:37AM +0100, Michael Gasch
wrote:
> after rsyncing both machines, some files differ !
> i verified these differences with "diff", hexdump and
"md5sum"
By default, rsync considers a file to be the same if it has the same
size and the same modified-time, so it is possible for two files that
match in these attributes to differ in contents.  If you can figure out
what changed the spreadsheets without tweaking the files' modified-time
you might be able to fix the problem at that end.
> "-c" is no alternative for me hence it takes hours to verify
1.000.000
> files!!!
Since you say that these are just the .xls spreadsheet files that have
this problem, would limiting the rsync -c to just the spreadsheets make
it workable?

  /usr/bin/rsync -W --progress --rsync-path=/usr/local/bin/rsync -e ssh 
    -c --delete --force --include='*/' --include='*.xls'
--exclude='*'
    -av /data/ machine2:/data/machine1/

..wayne..