full upload happening even though only a timestamp has changed
tomg at em.ca
Tue Apr 22 12:37:58 EST 2003
> > Why? It seems to me to be a lot saner to get the checksum of the
> > modification time or size is different.
> The difference in cost between generating the checksum for
> comparison and doing an update with no change is very small.
Okay, judging by the mail Donovan sent me, I didn't know what I was
> > > You are confusing upload with update.
> > Well, I guess I am, since I thought they were the same. What's the
> > difference?
> The reason rsync exists and was explained in my earlier email.
I think I understand. The whole reason I started this thread was
because Rsync was doing an upload when it didn't need to because both
files were the same except for modification time.
> > > The existence of the temp file does not mean it is uploading
> > > the file.
> > Okay.
And thanks for explaining the mechanics of an update for me.
> Try -vvv and just on that file. Your stdout is 3MB of
I know :-).
> You also might try a larger block size which can reduce the
> likelihood of a redo.
I still think a redo isn't happening. I'll use Donovan's suggestion of
tomg at nova:/extra/library/software/Knopper,_Klaus$ rsync -vvvessh -B 65536 KNOPPIX_V3.2-2003-04-18-EN.iso teep:/extra/tomg/library/software/Knopper,_Klaus/
opening connection using ssh teep rsync --server -vvv -B65536 . /extra/tomg/library/software/Knopper,_Klaus/
expand file_list to 4000 bytes, did move
server_recv(2) starting pid=25025
received 1 names
get_local_name count=1 /extra/tomg/library/software/Knopper,_Klaus/
generator starting pid=25025 count=1
send_files mapped KNOPPIX_V3.2-2003-04-18-EN.iso of size 729716736
calling match_sums KNOPPIX_V3.2-2003-04-18-EN.iso
[ Many minutes pass and there is 700MiB or so of upload traffic
according to Iptraf ... and my hub's activity light is a solid green ...
it's uploading, honest ]
false_alarms=0 tag_hits=0 matches=0
sender finished KNOPPIX_V3.2-2003-04-18-EN.iso
recv mapped KNOPPIX_V3.2-2003-04-18-EN.iso of size 729716736
renaming .KNOPPIX_V3.2-2003-04-18-EN.iso.rKviXi to KNOPPIX_V3.2-2003-04-18-EN.iso
send files finished
total: matches=0 tag_hits=0 false_alarms=0 data=729716736
wrote 729805913 bytes read 36 bytes 1083602.00 bytes/sec
total size is 729716736 speedup is 1.00
_exit_cleanup(code=0, file=main.c, line=620): about to call exit(0)
tomg at nova:/extra/library/software/Knopper,_Klaus$
I even verified MD5 sums before the upload finished:
tomg at teep:~/library/software/Knopper,_Klaus$ md5sum KNOPPIX_V3.2-2003-04-18-EN.iso
tomg at nova:/extra/library/software/Knopper,_Klaus$ md5sum KNOPPIX_V3.2-2003-04-18-EN.iso
Tom Goulet, tomg at em.ca, D8BAD3BC, http://web.em.ca/~tomg/contact.html
I usually read no mail which is unsolicited and bulk, is not exclusively in
plain text, has advertising footers, is top-posted, or has bad line wrap.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Size: 189 bytes
Desc: not available
Url : http://lists.samba.org/archive/rsync/attachments/20030422/0fe76734/attachment.bin
More information about the rsync