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Re: rsync fails to copy (both 2.4.6-1 and 2.5.5-0.1) maybe other ways to copy?




On 18 Dec 2002, Shyamal Prasad wrote:

>     "Mike" == Mike Dresser <mdresser_l@windsormachine.com> writes:
>
>     Mike> But since there's no rsync server being used in this case,
>     Mike> it has to read the entire file anyways.

> You don't need a server for the incremental updates to happen. rsync
> on the client side invokes rsync on the remote side and does an
> incremental backup anyway. That is why you need rsh/ssh or something
> before you can rsync without the server. At least on a *nix
> box. Perhaps wintel changes that.......
>
> /Shyamal

In this case, he's got a mount to the remote machine.

He's doing the same thing as doing a rsync a b locally

It's going to have to generate c'sums for a, and for b to know what is
different, no?

As compared to a normal connection rsync a:/a b, where a:/ is told to do
the checksums, and the local client handles its own checksums of b and
they just compare checksums over the line, sending small blocks as needed.

He's going to have it reading all of a, to generate checksums over the
line, and then read all of b locally to generate checksums, and then
compare in memory.

Now, if he put rsyncd.exe from cygwin in the Windows machine and told it
to use that, it'd be a lot more efficient.

Or do I understand rsync wrong?





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