Keeping old versions of packages

[seth vidal]

On Wed, 10 Apr 2013 10:53:25 -0400
John.Florian at dart.biz wrote:

> > From: seth vidal <skvidal at fedoraproject.org>
> > 
> > The metadata doesn't get downloaded if it hasn't changed - the
> > problem though is that the metadata DOES change often. Normally
> > everyday.
> 
> Is there anything that could be done to make it unnecessary to pull
> the complete metadata for every update?  For example, IIRC this is
> all sqlite data, but what if this was in a plain-text data dump form
> where something like rsync could be used to efficiently transfer only
> those bits that have changed.  Client CPU time to reconstruct the DB
> is probably cheaper than the bandwidth.  Maybe such a mode would only
> be used if the DB size exceeded some threshold.
> 

You'll have to talk to those folks who are trying to work on a delta
metadata format.

And rsync is not efficient from a bunch of clients to a mirror server.
It would cripple a mirror server in a moment.

-sv