From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp0 ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms11 with LMTPS id qO0QMVVn4V9IZwAA0tVLHw (envelope-from ) for ; Tue, 22 Dec 2020 03:26:13 +0000 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp0 with LMTPS id 2E7ZLFVn4V8YeAAA1q6Kng (envelope-from ) for ; Tue, 22 Dec 2020 03:26:13 +0000 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by aspmx1.migadu.com (Postfix) with ESMTPS id 0AD819402B0 for ; Tue, 22 Dec 2020 03:26:11 +0000 (UTC) Received: from localhost ([::1]:47380 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1krYJN-0008PT-1X for larch@yhetil.org; Mon, 21 Dec 2020 22:26:09 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:49960) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1krYJG-0008PN-KO for bug-guix@gnu.org; Mon, 21 Dec 2020 22:26:02 -0500 Received: from debbugs.gnu.org ([209.51.188.43]:37130) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1krYJG-0001CP-DT for bug-guix@gnu.org; Mon, 21 Dec 2020 22:26:02 -0500 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1krYJG-0005ed-9o for bug-guix@gnu.org; Mon, 21 Dec 2020 22:26:02 -0500 X-Loop: help-debbugs@gnu.org Subject: bug#45302: Avahi substitute discovery keeps trying to ping unaccessible servers Resent-From: Maxim Cournoyer Original-Sender: "Debbugs-submit" Resent-CC: bug-guix@gnu.org Resent-Date: Tue, 22 Dec 2020 03:26:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 45302 X-GNU-PR-Package: guix X-GNU-PR-Keywords: To: Pierre Neidhardt Received: via spool by 45302-submit@debbugs.gnu.org id=B45302.160860751821675 (code B ref 45302); Tue, 22 Dec 2020 03:26:02 +0000 Received: (at 45302) by debbugs.gnu.org; 22 Dec 2020 03:25:18 +0000 Received: from localhost ([127.0.0.1]:48676 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1krYIX-0005dX-Nw for submit@debbugs.gnu.org; Mon, 21 Dec 2020 22:25:17 -0500 Received: from mail-qt1-f169.google.com ([209.85.160.169]:35630) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1krYIV-0005dK-9s for 45302@debbugs.gnu.org; Mon, 21 Dec 2020 22:25:15 -0500 Received: by mail-qt1-f169.google.com with SMTP id b9so8185183qtr.2 for <45302@debbugs.gnu.org>; Mon, 21 Dec 2020 19:25:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:references:date:in-reply-to:message-id :user-agent:mime-version; bh=He9UGJE9TYSfGT6qMtjNo1/+slGJGr3qgtgvktTNnnM=; b=L/EQdHsij5wvMRwGIvCgqyd632zWN0M+FmoPPlQ+8kDJEUcHpAe6Zdg8Sh+sn+8XMC hZoEDS+RDOC7dSBBRVX8BvJhAxKK99llQW9OsU0OTLZHEsQpmQB/YxZMRkvQ+omMlUHD uvt18O7EURcoWvcnjIMGva7bv5+FULXjj/akjc+xc3Z3eDFhNKpcNApJmRMLzZj5teBN uKg+/NZ7JxVaXGMUWvMaHnXSMCMMkGUJqyMGRHdMhHfbFFVvZy8oZAACfL6h6+KeHyjc vop1WqPUOxQVahhP81LAB9khlyJz5oDNbzF7my6/1oTjnxiFUm2VMnwIvP8tHpGIQynI Dv4A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:references:date:in-reply-to :message-id:user-agent:mime-version; bh=He9UGJE9TYSfGT6qMtjNo1/+slGJGr3qgtgvktTNnnM=; b=jz3pMLLs2bzORGGtpZtZcI+El/g07ZGpcOubnhxZXFBz/MlakNS9T2UNV14Sb0gIp6 fyNpjsrsEhosVkUXjXO82PnWndMIxTAdsJXwwDCvx2l+Hm0eUh0Vr57rNs7Cqdnp6Au8 lgRqcCzEG4AfSmLb0AowgVyw1libPYIVxuImJ2htUVNn6T+IaBMI6EmzmQbUP5Fgb3tX Q62sdaCqsO8SOPZuOUfM2qpQE20FoUBusDdRrMTEG/x0XK/9o1g52cxK7orM4zPAoPRg iRmg18eIeBBmaOosyfidC6cCG70ndsw3fOcX0EBHXmhOUTqOilOSkaoA+C82Gq6wEhIp xZXQ== X-Gm-Message-State: AOAM532rfxP3XIFiMJmPRBR6E+bPkZGIRP7rRNls1wO3Ku6PSZgi/4eE 1WggVF0/CtXKzmjSo9AW64hOsViQaElKqw== X-Google-Smtp-Source: ABdhPJxKs9VXT5oQJDsViqzvls/4b4lOx9BeMiwUqtDuT28oclSi/1TYkVuI/T/pEqs2N75XrfgQww== X-Received: by 2002:ac8:7b56:: with SMTP id m22mr19972295qtu.380.1608607509354; Mon, 21 Dec 2020 19:25:09 -0800 (PST) Received: from hurd (dsl-155-238.b2b2c.ca. [66.158.155.238]) by smtp.gmail.com with ESMTPSA id n7sm7850327qkg.19.2020.12.21.19.25.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Dec 2020 19:25:08 -0800 (PST) From: Maxim Cournoyer References: <87lfdw72lq.fsf@ambrevar.xyz> Date: Mon, 21 Dec 2020 22:25:03 -0500 In-Reply-To: <87lfdw72lq.fsf@ambrevar.xyz> (Pierre Neidhardt's message of "Thu, 17 Dec 2020 18:40:33 +0100") Message-ID: <87k0tasesw.fsf@gmail.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-guix@gnu.org List-Id: Bug reports for GNU Guix List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: 45302@debbugs.gnu.org Errors-To: bug-guix-bounces+larch=yhetil.org@gnu.org Sender: "bug-Guix" X-Migadu-Flow: FLOW_IN X-Migadu-Spam-Score: -1.22 Authentication-Results: aspmx1.migadu.com; dkim=fail (headers rsa verify failed) header.d=gmail.com header.s=20161025 header.b=L/EQdHsi; dmarc=fail reason="SPF not aligned (relaxed)" header.from=gmail.com (policy=none); spf=pass (aspmx1.migadu.com: domain of bug-guix-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=bug-guix-bounces@gnu.org X-Migadu-Queue-Id: 0AD819402B0 X-Spam-Score: -1.22 X-Migadu-Scanner: scn1.migadu.com X-TUID: MIBSPp3IqswH Hello, Pierre Neidhardt writes: > I've set up my desktop and laptop to use the new substitute discovery > feature, it's awesome! > > However, when I put my desktop to sleep and run a Guix command on my > laptop that requires access to a sbustitute server, I see this: > > $ guix build ncdu > substitute: guix substitute: warning: 10.0.0.5: connection failed: No route to host > substitute: updating substitutes from 'http://ci.guix.gnu.org'... 100.0% > 0.0 MB will be downloaded: > /gnu/store/p70r4maqgh6ghl25h5a99w7sf1jidap8-ncdu-1.15.1 > substituting /gnu/store/p70r4maqgh6ghl25h5a99w7sf1jidap8-ncdu-1.15.1... > > > The warning > > substitute: guix substitute: warning: 10.0.0.5: connection failed: No route to host > > > pops up on every download, which adds some 2s delay each time. This > makes the whole process much slower. > > For your information, Avahi does not find my desktop: > > $ sudo avahi-browse -al > Password: > + wlp2s0 IPv6 FOO___s MacBook Pro _companion-link._tcp local > + wlp2s0 IPv4 FOO___s MacBook Pro _companion-link._tcp local > C-c C-cGot SIGINT, quitting. This reminds me of https://issues.guix.gnu.org/30290. Perhaps if we can fix that one it'd make this one go away too?. I was thinking of having a simple mean to reduce the request attempts on servers down for a long while, such as entering dead periods (breaks): "I've tried X times, it doesn't respond, I give up for the next Y minutes"; allowing for X and Y to be configured via the record. Do you think this would help? Maxim