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Date: Mon, 11 Apr 2005 14:32:45 +0100
From: Jason Pearce <jason DOT pearce AT ieee DOT org>
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To: Cygwin List <cygwin AT cygwin DOT com>
Subject: Re: rsync hangs on checksum synchronization
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FYI - I use rsync with checksums to synchronise from my laptop to work. 
It syncs to a HP binary of rsync at the other end. I found I had to use 
checksums because the time stamping was unreliable, transfering more 
than it needed to. I have found it to be very reliable since switching 
to checksums, but my database is much smaller, 591 files 477M.

I use this command:
rsync -crpz --progress --delete Makefile setup.exe setup.ini etc release 
engserv3:/netapp1/cad/users/jasonp/cygwin-beta/

On Cygin I have rsync  version 2.6.3  protocol version 28 (2.6.3-1)

On HP I have rsync  version 2.5.6  protocol version 26

Regards,
Jason

>At 08:31 AM 4/9/2005, you wrote:
>  
>
>>>Hi everybody,
>>>
>>>I'm experiencing another variant of the rsync hang-problem. I'm using rsync
>>>locally to synchronize some large amount of data (~ 80 GB of media files)
>>>with an attached USB harddrive. The command I use for everyday
>>>synchronization reads as:
>>>
>>>rsync -CvubrltgoD -v --delete --backup-dir=/CYGDRIVE/p/BACKUP
>>>--exclude="System Volume Information" --exclude="RECYCLER"
>>>--exclude="desktop.ini" --stats --progress /CYGDRIVE/m/ /CYGDRIVE/$1
>>>
>>>This command just works as expected - no problems occur. However, I want to
>>>run a cron job every month that performs a thorough, binary comparison
>>>between the two trees. The command reads as:
>>>
>>>rsync -cCvubrltgoD -v -v --delete --backup-dir=/CYGDRIVE/p/BACKUP
>>>--exclude="System Volume Information" --exclude="RECYCLER"
>>>--exclude="desktop.ini" --stats --progress /CYGDRIVE/m/ /CYGDRIVE/$1
>>>
>>>As you will notice, the only noticeable difference is the additional
>>>"-c"-switch which implies the use of checksums.
>>>
>>>Running the second command results in a large list being built (locally,
>>>>from /CYGDRIVE/m/), which soon stops after about 100 files. The point where
>>>it stops is not identical all the time.
>>>
>>>I don't know if I should attach the result of the cygcheck-command here
>>>since it contains a large amount of data - if you need any more information,
>>>please ask me to provide it. Google could not help me in this issue, and I
>>>can't see why the command in question should not work.
>>    
>>
>
>'cygcheck -srv' is always a help.  I'd suggest *attaching* an uncompressed
>version in any follow-up.  How large could it be?  Mine's 43K.
>
>Also, please note that if any of your mounted drives ('/cygdrive/X')
>require windows authentication to access, you'll have trouble with that
>when running as a service (if the service is run as 'SYSTEM' rather than
>under your Windows login).  
>
>
>
>
>--
>Larry Hall                              http://www.rfk.com
>RFK Partners, Inc.                      (508) 893-9779 - RFK Office
>838 Washington Street                   (508) 893-9889 - FAX
>Holliston, MA 01746                     
>
>  
>

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