Re: effectiveness of rsync and apt
* Goswin von Brederlow:
> Tyler MacDonald <tyler@yi.org> writes:
>
>> Brian Eaton <eaton.lists@gmail.com> wrote:
>>> http://rsync.samba.org/rsync-and-debian/rsync-and-debian.html
>>>
>>> Has anyone ever done some log file analysis to figure out how much
>>> bandwidth would be saved by transferring package deltas instead of
>>> entire new packages?
>
> Look at zsync and help develope it far enough so it can look into
> debs. Without that the gain is practicaly 0 or less.
The downside is that anything that doesn't work on entire .debs is
very likely to change them at the byte stream level (you only need to
use slightly different zlib versions or parameters). This means that
the chain of cryptographic hashes that guard against malicious mirror
or network operators breaks. 8-(
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