full upload happening even though only a timestamp has changed
jw at pegasys.ws
Tue Apr 22 12:16:49 EST 2003
On Tue, Apr 22, 2003 at 01:51:33AM +0000, Tom Goulet wrote:
> > > Okay, I got all that. So if the modification time is different, Rsync
> > > should get a checksum, right?
> > Wrong. If the mtime is different rsync updates the file.
> 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.
> > You are confusing upload with update.
> Well, I guess I am, since I thought they were the same. What's the
The reason rsync exists and was explained in my earlier email.
> > > http://web.em.ca/~tomg/tmp/rsync_debug.0
> > 404 Not Found
> Works for me.
Whitespace error on my end, sorry.
> > The existence of the temp file does not mean it is uploading
> > the file.
> I am certain it's uploading when I've said it's uploading. The time
> taken, Rsync's "wrote xxx bytes" output, and Iptraf prove that.
Try -vvv and just on that file. Your stdout is 3MB of
You also might try a larger block size which can reduce the
likelihood of a redo.
J.W. Schultz Pegasystems Technologies
email address: jw at pegasys.ws
Remember Cernan and Schmitt
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