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Re: Apt and rsync... I know...

Goswin von Brederlow <brederlo@informatik.uni-tuebingen.de> wrote:
> Doug Holland <meldroc@frii.com> writes:
>> because it hogs I/O and CPU cycles on the Debian servers.  That's a
>> valid reason, but surely there are ways around it.

> Its called cnysr and I asked for supporting it i think over a year
> ago, never got a reply.

> cnysr (rsync backwards you might have noticed) reverses the roles the
> client and server play in rsync. Instead of the client sending a
> blockwise checksum to the server the server send them, either
> calculated on the fly or from a precalculated file. The client then
> checks what blocks it needs and requests those. The blockwise
> checksums are (depending on the block size, assuming 1K) about 2% of
> the file.

Hmm. Iirc in almost every discussion about apt+rsync the existence of
a rsync-like algorthm with reversed sides (client doing the expensive
calculation) hascome up and was always said to be patent-encumbered.
               cu andreas
Hey, da ist ein Ballonautomat auf der Toilette!
Unofficial _Debian-packages_ of latest unstable _tin_

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