Kim,
it looks like you're correct in your assesment of the problem (i.e. the whole file is copied). You don't say what version of rsync you're running, but there may be a bug in the current version introduced recently with the addition of the --no-whole-file option. See the following message for a description of the problem and a patch: http://lists.samba.org/pipermail/rsync/2002-March/006526.html -- Alberto In message <[EMAIL PROTECTED]>, Kim Scarborough writes: > Okay, this response is a bit delayed, so I'm including a recap: > > > > > > I'm using it to backup files from one computer to another, and it > > > > > works exactly as I thought it would, except that it seems to be > > > > > copying entire files over when they've change rather than the > > > > > differences. > > > > > > > > What specifically leads you to that conclusion? > > > > > > I have it set to extra verbose, and I've been watching the files transfer > > > over. When I append 2K to a 100MB text file and re-rsync, it's pretty > > > obvious it's transferring 100MB, not 2K + whatever overhead the diff take s > > > up. > > > > I wouldn't be so sure. Add the option --stats to the rsync command line > > and see what it says. AFAIK those numbers are correct. > > Today I did a very specific test and I'm positive it's behaving that way. > Here's a transcript, sorry for the length: > > ----------------------------------------------------------------------------- - > > JINX: /root# ls -l /home/sluggo/temp > total 1904 > -rw------- 1 sluggo wheel 1934600 Mar 17 19:49 asciifile > > JINX: /root# rsync -vvaRbS --backup-dir=/backups/rsync/old --delete \ > --rsh=ssh --exclude="*.core" --exclude=/etc/namedb/secondary \ > --exclude=/var/run --numeric-ids --stats --progress --bwlimit=100 \ > /home/sluggo/temp remoteserver:/backups/rsync/current > rsync: open connection using ssh remoteserver rsync --server -vvblogDtprRS > --bwlimit=100 --delete --numeric-ids --backup-dir /backups/rsync/old . /backu ps/rsync/current > rsync: building file list... > > rsync: expand file_list to 4000 bytes, did move > rsync: 4 files to consider. > expand file_list to 4000 bytes, did move > deleting in home/sluggo/temp > home is uptodate > home/sluggo/temp/ > /home/sluggo/temp/asciifile > 131072 6% 76.13kB/s 0:00:23 > 524288 27% 76.18kB/s 0:00:18 > 1212416 62% 76.19kB/s 0:00:09 > 1605632 82% 76.18kB/s 0:00:04 > 1934600 100% 76.01kB/s 0:00:00 > backup_dir is /backups/rsync/old > total: matches=0 tag_hits=0 false_alarms=0 data=1934600 > > > Number of files: 4 > Number of files transferred: 1 > Total file size: 1934608 bytes > Total transferred file size: 1934600 bytes > Literal data: 1934600 bytes > Matched data: 0 bytes > File list size: 103 > Total bytes written: 1935042 > Total bytes read: 36 > > wrote 1935042 bytes read 36 bytes 73021.81 bytes/sec > total size is 1934608 speedup is 1.00 > > JINX: /root# echo "13 more chars" >> /home/sluggo/temp/asciifile > > JINX: /root# rsync -vvaRbS --backup-dir=/backups/rsync/old --delete \ > --rsh=ssh --exclude="*.core" --exclude=/etc/namedb/secondary \ > --exclude=/var/run --numeric-ids --stats --progress --bwlimit=100 \ > /home/sluggo/temp remoteserver:/backups/rsync/current > rsync: open connection using ssh remoteserver rsync --server > -vvblogDtprRS --bwlimit=100 --delete --numeric-ids --backup-dir > /backups/rsync/old . /backups/rsync/current > rsync: building file list... > > rsync: expand file_list to 4000 bytes, did move > rsync: 4 files to consider. > expand file_list to 4000 bytes, did move > deleting in home/sluggo/temp > home is uptodate > /home/sluggo/temp/asciifile > 131072 6% 76.19kB/s 0:00:23 > 425984 22% 76.19kB/s 0:00:19 > 851968 44% 76.18kB/s 0:00:14 > 1376256 71% 76.19kB/s 0:00:07 > 1934614 100% 76.02kB/s 0:00:00 > backup_dir is /backups/rsync/old > keep_backup home/sluggo/temp/asciifile -> > /backups/rsync/old/home/sluggo/temp/asciifile > > total: matches=0 tag_hits=0 false_alarms=0 data=1934614 > > Number of files: 4 > Number of files transferred: 1 > Total file size: 1934622 bytes > Total transferred file size: 1934614 bytes > Literal data: 1934614 bytes > Matched data: 0 bytes > File list size: 103 > Total bytes written: 1935056 > Total bytes read: 36 > > wrote 1935056 bytes read 36 bytes 70366.98 bytes/sec > total size is 1934622 speedup is 1.00 > > -------------------------------------------------------------- > > Note the "Total bytes written". All I added was that one line at the end > of the file. I also hit enter a couple times during the transfer so that > snapshots of the timings would be logged; note that it took about the same > amount of time both times. So unless I'm completely on drugs here, it > seems to be transferring the entire file, not a diff. > > ----------------------------------------------------------------------------- -- > Kim Scarborough http://www.unknown.nu/ki m/ > ----------------------------------------------------------------------------- -- > "I was so naive as a kid, I used to sneak behind the barn and do nothing." > -Johnny Carson > ----------------------------------------------------------------------------- -- > > > -- > To unsubscribe or change options: http://lists.samba.org/mailman/listinfo/rsy nc > Before posting, read: http://www.tuxedo.org/~esr/faqs/smart-questions.html **************************************************************************** Alberto Accomazzi mailto:[EMAIL PROTECTED] NASA Astrophysics Data System http://adsabs.harvard.edu Harvard-Smithsonian Center for Astrophysics http://cfawww.harvard.edu 60 Garden Street, MS 83, Cambridge, MA 02138 USA **************************************************************************** -- To unsubscribe or change options: http://lists.samba.org/mailman/listinfo/rsync Before posting, read: http://www.tuxedo.org/~esr/faqs/smart-questions.html
