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 UMrMBK0Me1/3VAAA0tVLHw (envelope-from ) for ; Mon, 05 Oct 2020 12:08:13 +0000 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp2 with LMTPS id mM95AK0Me19AOgAAB5/wlQ (envelope-from ) for ; Mon, 05 Oct 2020 12:08:13 +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 8729E9401BD for ; Mon, 5 Oct 2020 12:08:12 +0000 (UTC) Received: from localhost ([::1]:54558 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kPPHn-0006ns-Ec for larch@yhetil.org; Mon, 05 Oct 2020 08:08:11 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:57418) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kPPHe-0006li-UA for bug-guix@gnu.org; Mon, 05 Oct 2020 08:08:02 -0400 Received: from debbugs.gnu.org ([209.51.188.43]:36639) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kPPHe-00037b-Kk for bug-guix@gnu.org; Mon, 05 Oct 2020 08:08:02 -0400 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1kPPHe-0008GB-Fo for bug-guix@gnu.org; Mon, 05 Oct 2020 08:08:02 -0400 X-Loop: help-debbugs@gnu.org Subject: bug#43564: cuirass: Contention while registering new builds. Resent-From: Ludovic =?UTF-8?Q?Court=C3=A8s?= Original-Sender: "Debbugs-submit" Resent-CC: bug-guix@gnu.org Resent-Date: Mon, 05 Oct 2020 12:08:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 43564 X-GNU-PR-Package: guix X-GNU-PR-Keywords: To: 43564@debbugs.gnu.org Received: via spool by 43564-submit@debbugs.gnu.org id=B43564.160189967531738 (code B ref 43564); Mon, 05 Oct 2020 12:08:02 +0000 Received: (at 43564) by debbugs.gnu.org; 5 Oct 2020 12:07:55 +0000 Received: from localhost ([127.0.0.1]:48185 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kPPHX-0008Fp-J8 for submit@debbugs.gnu.org; Mon, 05 Oct 2020 08:07:55 -0400 Received: from eggs.gnu.org ([209.51.188.92]:50524) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kPPHV-0008Fc-QA for 43564@debbugs.gnu.org; Mon, 05 Oct 2020 08:07:54 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:57335) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kPPHQ-00036A-KZ for 43564@debbugs.gnu.org; Mon, 05 Oct 2020 08:07:48 -0400 Received: from [2001:660:6102:320:e120:2c8f:8909:cdfe] (port=35026 helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1kPPHO-0006hv-JA; Mon, 05 Oct 2020 08:07:47 -0400 From: Ludovic =?UTF-8?Q?Court=C3=A8s?= References: <87imc5zrc8.fsf@gnu.org> <87k0wee3ud.fsf@gnu.org> X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 14 =?UTF-8?Q?Vend=C3=A9miaire?= an 229 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, 05 Oct 2020 14:07:44 +0200 In-Reply-To: <87k0wee3ud.fsf@gnu.org> (Mathieu Othacehe's message of "Mon, 28 Sep 2020 09:51:38 +0200") Message-ID: <87v9fo27vz.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: othacehe@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=pass (policy=none) header.from=gnu.org; 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: -1.51 X-TUID: j3Pe8yNGi/NE Hello! Mathieu Othacehe skribis: > Turns out, once an evaluation is over, new builds are registered. This > registration tries to insert a new build for each derivation returned by > the evaluation phase. If the new build does not add a new output, the > insertion query is then rollbacked. This means that there are at least > as many insertion queries as new derivations. Isn=E2=80=99t that the real problem, that we=E2=80=99re doing one transacti= on per derivation? Ideally, upon evaluation completion, I=E2=80=99d expect us to create a sing= le transaction that registers all 50K derivations at once, no? Thanks for the great improvements in this area! Ludo=E2=80=99.