On Friday, March 2, 2018 2:44:19 AM CET stan wrote:
> On Thu, 01 Mar 2018 14:29:45 -0000
> "Farhad Mohammadi Majd" <farhadbenya...@yahoo.com> wrote:
> > Hello, in Debian (9, stable), size of all the official repositories
> > metadata is maximum 10MB, while in Fedora, today I ran "dnf update"
> > for first time after installing Fedora 27
> > (Fedora-Workstation-Live-x86_64-27-1.6) and it took 20+58MB for two
> > official repositories!
> > It is really too high, why there is such difference? why don't
> > optimize it and fix this problem?
> I don't have any intimate knowledge of this. But you are comparing
> apples and oranges. Apt and dnf. Either the format of the meta data
> must be very different for the two, or apt must send much less meta
Yes, IMO the amount of information in metadata creates the difference.
> You aren't alone in complaining about this. Whenever an update occurs,
> all the meta data has to be downloaded again. People on limited
> quantity connections find this onerous. There has been discussion of
> making the meta data update an incremental update, but the format of
> meta data doesn't lend itself well to doing this. And the delta files
> would put a lot of extra files on repo hosts.
I doubt delta files for metadata would cause significant storage problems
(compare that with the size of RPMs). You don't have to keep the deltas
forever, it would be matter of quality of implementation..
Do we have some RFE bug for this, or some feature page? This is #1 issue in
yum/dnf world for quite some time.
> I think you can be assured that if there was a simple optimization that
> could take care of this, it would have already been applied.
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