[CentOS-devel] Delta RPMs (drpms) for CentOS-6 and CentOS-7

[Nico Kadel-Garcia]

On Wed, Jun 5, 2019 at 12:20 AM Fred Smith
<fredex at fcshome.stoneham.ma.us> wrote:
>
> On Tue, Jun 04, 2019 at 09:55:14AM -0500, Johnny Hughes wrote:
> > We are having issues with drpms on CentOS-6 i386 and x86_64 and on
> > CentOS-7 x86_64.
> >
> > The technical issues sometimes cause us to have to rebuild all drpms
> > over again .. and the time involved is very large.  Also storing the
> > drpms and moving them around takes up a lot of space and bandwidth.
> >
> > We would like to remove delta rpms (drpms) from our CentOS-6 and
> > CentOS-7 repositories.
> >
> > But before we do , we would like a discussion on these lists to ensure
> > this is not going to cause people major issues.
> >
> > So, begin the discussion, and we will address this again in about a
> > month.  And we'll see where it leads.
> >
> > Thanks,
> > Johnny Hughes
> >
>
> Johnny:
>
> I don't have any particular problems with drpms, but I note that
> on my laptop, which is a really dog-slow dual-core Atom maxed out
> with a whopping 2Gig of RAM, the drpms seems to take forever to
> finish the rebuild. I suspect for me it'd be faster to just download
> the full RPM.
>
> Fred

They add unnecessary bulk to local mirrors, and especially to the
repodata which *cannot* be optimized down without reducing content on
the mirrors. I've never liked this unnecessary duplication of data.