From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp2 ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms11 with LMTPS id sBNiApcbX18xHQAA0tVLHw (envelope-from ) for ; Mon, 14 Sep 2020 07:28:23 +0000 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp2 with LMTPS id aOI2OJYbX1/qGAAAB5/wlQ (envelope-from ) for ; Mon, 14 Sep 2020 07:28:22 +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 92F449400C9 for ; Mon, 14 Sep 2020 07:28:22 +0000 (UTC) Received: from localhost ([::1]:47738 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kHiuT-0005bB-JW for larch@yhetil.org; Mon, 14 Sep 2020 03:28:21 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:51790) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kHiuA-0005Z7-0K for bug-guix@gnu.org; Mon, 14 Sep 2020 03:28:02 -0400 Received: from debbugs.gnu.org ([209.51.188.43]:40840) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kHiu9-0003GK-MC for bug-guix@gnu.org; Mon, 14 Sep 2020 03:28:01 -0400 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1kHiu9-0001sW-Jz for bug-guix@gnu.org; Mon, 14 Sep 2020 03:28:01 -0400 X-Loop: help-debbugs@gnu.org Subject: bug#41575: [bug#43371] [PATCH] doc: prevent host/container nscd mismatch Resent-From: Ludovic =?UTF-8?Q?Court=C3=A8s?= Original-Sender: "Debbugs-submit" Resent-CC: bug-guix@gnu.org Resent-Date: Mon, 14 Sep 2020 07:28:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 41575 X-GNU-PR-Package: guix X-GNU-PR-Keywords: To: conjaroy Received: via spool by 41575-submit@debbugs.gnu.org id=B41575.16000684257119 (code B ref 41575); Mon, 14 Sep 2020 07:28:01 +0000 Received: (at 41575) by debbugs.gnu.org; 14 Sep 2020 07:27:05 +0000 Received: from localhost ([127.0.0.1]:52374 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kHitF-0001qj-9R for submit@debbugs.gnu.org; Mon, 14 Sep 2020 03:27:05 -0400 Received: from eggs.gnu.org ([209.51.188.92]:44694) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kHitD-0001qA-IM; Mon, 14 Sep 2020 03:27:04 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:47186) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kHit8-00039o-1y; Mon, 14 Sep 2020 03:26:58 -0400 Received: from [2001:660:6102:320:e120:2c8f:8909:cdfe] (port=44022 helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1kHit7-0000b2-DF; Mon, 14 Sep 2020 03:26:57 -0400 From: Ludovic =?UTF-8?Q?Court=C3=A8s?= References: <87lfhet1d2.fsf@rdklein.fr> <87y2ld9ym2.fsf@gnu.org> X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 29 Fructidor an 228 de la =?UTF-8?Q?R=C3=A9volution?= X-PGP-Key-ID: 0x090B11993D9AEBB5 X-PGP-Key: http://www.fdn.fr/~lcourtes/ludovic.asc X-PGP-Fingerprint: 3CE4 6455 8A84 FDC6 9DB4 0CFB 090B 1199 3D9A EBB5 X-OS: x86_64-pc-linux-gnu Date: Mon, 14 Sep 2020 09:26:47 +0200 In-Reply-To: (conjaroy@gmail.com's message of "Sun, 13 Sep 2020 21:05:58 -0400") Message-ID: <87pn6oq0nc.fsf@gnu.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: -2.3 (--) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-Spam-Score: -3.3 (---) X-BeenThere: bug-guix@gnu.org List-Id: Bug reports for GNU Guix List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: 43371@debbugs.gnu.org, edk@beaver-labs.com, 41575@debbugs.gnu.org Errors-To: bug-guix-bounces+larch=yhetil.org@gnu.org Sender: "bug-Guix" X-Scanner: scn0 Authentication-Results: aspmx1.migadu.com; dkim=none; dmarc=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-Spam-Score: -1.01 X-TUID: fJRxPqG5BM4r Hi, conjaroy skribis: > A separate nscd per container also seems like a reasonable option. Howeve= r, > for the sake of machines hosting many long-lived containers, perhaps we > should consider reducing the cache size: currently it's 32MB for each name > service type, with an expiration of 12-24 hours: > > https://git.savannah.gnu.org/cgit/guix.git/tree/gnu/services/base.scm?id= =3D1042d269a723360a02b19a2baafef1e24a3bfc73#n1115 Good point. In that case, we can have =E2=80=98containerized-operating-system=E2=80=99 = provide its own NSS configuration with a reduced cache size (or without cache since there=E2=80=99s caching happening on the host for host name lookups, for instance). WDYT? Would you like to give it a try? Thanks, Ludo=E2=80=99.