Re: [gentoo-user] eix-sync data comparison

Alan McKinnon <alan.mckinnon@×××××.com> [14-01-11 22:16]:
> On 11/01/2014 22:44, meino.cramer@×××.de wrote:
> > Alan McKinnon <alan.mckinnon@×××××.com> [14-01-11 21:16]:
> >> On 11/01/2014 22:04, meino.cramer@×××.de wrote:
> >>> Hi,
> >>>
> >>> suppose I would do an eix-sync on two different computers of different
> >>> platforms -- say AMR and an ordinary PC.
> >>>
> >>> Are the downloaded data identical?
> >>
> >> the portage tree is identical everywhere
> >>
> >> the overlays that layman uses are identical everywhere, but possibly not
> >> identical between your two hosts. I can easily imagine you have
> >> different overlays between them, and no guarantee they will always be
> >> the same.
> >>
> >> I consider your question to be fragile and possibly quite dangerous.
> >> What are you trying to accomplish?
> >>
> >>
> >> --
> >> Alan McKinnon
> >> alan.mckinnon@×××××.com
> >>
> >>
> > Hi Alan,
> >
> > thanks for your reply.
> >
> > I want to lower the load on the official gentoo server(s).
> >
> > When the log of an eix-sync process is printed on the console, it is
> > said, that it is *suggested* (hrrm), to only sinc once a day. Since
> > the ARM and the PC both use the same DSL line, both syncs are seen by
> > the gentoo server(s) as it came from the same IP (the one of my ISP).
> > In the worst case, one could be blacklisted...which I dont want to be.
>
> I wouldn't worry about that at all.
>
> Gentoo infra is vastly more resilient than that, and there are several
> official hosts in some sort of cluster arrangement. I have minimally 4
> gentoo hosts here at home and many many times I've run --sync
> simultaneously on all of them 5-10 times a day, with not a peep out of
> infra. I don't do this deliberately, sometimes I forget just how
> powerful clusterssh can be :-)
>
> Plus our ftp server at work is a mirror for all of ZA with no special
> permissions, it syncs every hour.
>
> The message in --sync is, I believe, a holdover from long long ago that
> hasn't been valid for years. But it's left to discourage abuse. What you
> are doing is not abuse, it's normal activity. Many of us here have
> multiple gentoo installs.
>
> If you want to reduce the data downloaded, then by all means configure
> rsyncd to share the tree on the PC, and point the ARM to that. Don't
> worry about overlays, the amount of changed data from them is usually
> too small to worry about.
>
>
>
>
>
> >
> > Especially with the ARM I need to sync once a day, since I have to
> > limit the amount of software to be recompiled/updated after each sync
> > since the ARM is not *that* fast (for example a kernel compilation
> > take ~8h).  Ah, by the way: I quit crosscompilation, distcc and
> > such...  Both successfully screwed up my gentoos on the ARM.
> >
> >
> > t regards,
> > mcc
> >
> >
> >
> >
> >
>
>
> --
> Alan McKinnon
> alan.mckinnon@×××××.com
>

Hi Alan,

thanks a lot for the good news -- Gentoo is such an nice thing and
I didn't want to play the bad guy.

Best regards,
mcc