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Message-Id:	<4.3.1.2.20021226184954.016ece98@pop.rcn.com>
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Date:	Thu, 26 Dec 2002 18:58:20 -0500
To:	Michael Bourgon <michael_bourgon AT yahoo DOT com>, cygwin AT cygwin DOT com
From:	"Larry Hall (RFK Partners, Inc)" <lhall AT rfk DOT com>
Subject:	Re: Rsync issue - can it handle files larger than 2 gigabytes?
In-Reply-To:	<20021226180657.55238.qmail@web11107.mail.yahoo.com>
Mime-Version:	1.0

At 01:06 PM 12/26/2002, Michael Bourgon wrote:
>I'm trying to sync a 2.21 gigabyte file (so, a "large
>file") between Win2k and Win2k, where the client is
>pushing the file to the server (which is running
>"rsync --daemon --no-detach").  
>
>It fails, and to isolate the problem, I tried cp'ing
>the file:
>
>  cp /cygdrive/f/MY_db_200212252102.BAK /tmp
>
>which works successfully.  I then tried to rsync the
>same file:
>
>  rsync -a -vv -W --include=MY_db_200212252102.BAK
>--exclude=*.* /cygdrive/f/ /tmp
>
>It appears to replace the file with a 0-byte file.
>
>Here's the log from when it runs:
>
>building file list ...
>expand file_list to 4000 bytes, did move
>including file MY_db_200212252102.BAK because of
>pattern MY_db_200212252102.BAK
>done
>./
>MY_db_200212252102.BAK
>total: matches=0  tag_hits=0  false_alarms=0
>data=-1911686656
>wrote 150 bytes  read 36 bytes  124.00 bytes/sec
>total size is -1911686656  speedup is -10277885.25
>
>Does anyone know if there's anything I need to do to
>get large file support?  (I did have 4.58 gig free, so
>it wasn't due to lack of space)  Thanks.



Looks to me like you're running into 32-bit integer overflows.
While Cygwin internals don't support 64-bit either, judging from 
the output above, I'm guessing that rsync problem you're seeing is
internal to rsync.  A closer look at the code would help you determine
that for sure.  In any case, this is an indication that file sizes 
beyond 2GB don't work.



Larry Hall                              lhall AT rfk DOT com
RFK Partners, Inc.                      http://www.rfk.com
838 Washington Street                   (508) 893-9779 - RFK Office
Holliston, MA 01746                     (508) 893-9889 - FAX


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