From mboxrd@z Thu Jan 1 00:00:00 1970 From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=) Subject: Re: Default substitute URLs Date: Fri, 15 Jul 2016 16:10:40 +0200 Message-ID: <87y4530z6n.fsf@gnu.org> References: <87r3azkzku.fsf@gnu.org> <20160712090126.GA5646@solar> <87wpkpln7k.fsf@gnu.org> <20160714154854.GA24635@solar> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:40232) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bO3pG-0002qc-G0 for guix-devel@gnu.org; Fri, 15 Jul 2016 10:10:47 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bO3pD-0002SE-1G for guix-devel@gnu.org; Fri, 15 Jul 2016 10:10:46 -0400 In-Reply-To: <20160714154854.GA24635@solar> (Andreas Enge's message of "Thu, 14 Jul 2016 17:48:54 +0200") List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org Sender: "Guix-devel" To: Andreas Enge Cc: guix-devel Andreas Enge skribis: > On Wed, Jul 13, 2016 at 02:46:55PM +0200, Ludovic Court=C3=A8s wrote: >> I prefer to keep the mirror.hydra.gnu.org name, I think it=E2=80=99s cle= arer. > > Could there not be two, both of which would be checked, so if a package i= s not > found on the first one, it is searched on the second one? This would make= things > more resilient. Yes, that=E2=80=99s why we currently have mirror.* followed by hydra.*. But given that the former is a mirror of the latter, which clients do not know, it=E2=80=99s a bit silly: when mirror.* lacks an item, clients try hydra.* but are very unlikely to get a positive answer there. However, they pay an extra network query. Having several URLs pointing to the same server would be similarly inefficient. Hope this clarifies things. Ludo=E2=80=99.