From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp1 ([2001:41d0:8:6d80::]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) by ms0.migadu.com with LMTPS id SAWaE0b1gWBFSgAAgWs5BA (envelope-from ) for ; Fri, 23 Apr 2021 00:14:30 +0200 Received: from aspmx1.migadu.com ([2001:41d0:8:6d80::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp1 with LMTPS id yFwcD0b1gWDSCwAAbx9fmQ (envelope-from ) for ; Thu, 22 Apr 2021 22:14:30 +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 E677722E8B for ; Fri, 23 Apr 2021 00:14:29 +0200 (CEST) Received: from localhost ([::1]:59398 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lZhae-0001OM-K0 for larch@yhetil.org; Thu, 22 Apr 2021 18:14:28 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:60472) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lZhaN-0001OF-W2 for guix-devel@gnu.org; Thu, 22 Apr 2021 18:14:12 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:58041) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lZhaN-0004wf-Ny; Thu, 22 Apr 2021 18:14:11 -0400 Received: from [2a01:e0a:1d:7270:af76:b9b:ca24:c465] (port=38410 helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1lZhaN-0004Yw-7q; Thu, 22 Apr 2021 18:14:11 -0400 From: =?utf-8?Q?Ludovic_Court=C3=A8s?= To: Christopher Baines Subject: Re: Narinfo negative and transient error caching References: <87mtvhnsn6.fsf@cbaines.net> X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 4 =?utf-8?Q?Flor=C3=A9al?= an 229 de la =?utf-8?Q?R?= =?utf-8?Q?=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: Fri, 23 Apr 2021 00:14:09 +0200 In-Reply-To: <87mtvhnsn6.fsf@cbaines.net> (Christopher Baines's message of "Fri, 05 Mar 2021 22:27:09 +0000") Message-ID: <87tunyt1am.fsf@gnu.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-BeenThere: guix-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: guix-devel@gnu.org, 47897@debbugs.gnu.org Errors-To: guix-devel-bounces+larch=yhetil.org@gnu.org Sender: "Guix-devel" X-Migadu-Flow: FLOW_IN ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1619129670; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:list-id:list-help: list-unsubscribe:list-subscribe:list-post; bh=Hv8kVna4k1EOWL2jqr96jJDhigqAMrsN0wZRCDnS3ho=; b=uUBiIV9f749AfQiC+bQCdR5c7I7DLp+7FCoDZiVcXxIh+INoKJBMAEDNRiEcW4zbAIAYbq Y+pxXlQSs925IbCZARLlw2zNsbn9FCqj/pwAka8YEfExhPZNt5EcUwJmBilPXisxkdwv3+ MAhITFZEjoCo8ZRLJSKt6qYFD+jyoU8GNyekTgj3dL4zpHE3NHI2vQN86/vGY5tW8s0L89 RMEETQNsFNe5p2jhXVGJ0eVdxgY1Cz64gaxUFrTb4A08essy1g+SAuxrpEaWGOGOWNHygR c8o7OgGYlcaGpmXf5Ousmfs5E/8byeRwZcg+MB/QjPmyKM7OpdgPUVxyf2c3Iw== ARC-Seal: i=1; s=key1; d=yhetil.org; t=1619129670; a=rsa-sha256; cv=none; b=UrXFA5jE6Xf0eWhTq3Qqd1mZDmJ8zg0zdVxqo6GKQll9Jv/TQjcdK6pWTMTIf8Sphmdpwi cbVQ0VmNZBqkQTWKD3Yp7b8Q9c0fYIrlJiCj6cUct3hkjy1dxRO4CHuQkpyJ8YBaz0lodh CI0AzPyRCDlMA7kE4kVHimln2yquSGpoFqrVFExOXI15fcsSBcbYNmyVRvY1kSWMIQH2n/ tKZ4XrGVPv/tklUjP/wZypwZBB7cAvw1qm9iwb6enKWmyRVXH/gF0nCWmXud+tkGh+adOG p2EmJf8zP9JK4hr664pckZnMSI7+0QB2nvmEPmBXexk8tq6QqVRX10EQYK3+tA== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=none; dmarc=pass (policy=none) header.from=gnu.org; spf=pass (aspmx1.migadu.com: domain of guix-devel-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=guix-devel-bounces@gnu.org X-Migadu-Spam-Score: -2.95 Authentication-Results: aspmx1.migadu.com; dkim=none; dmarc=pass (policy=none) header.from=gnu.org; spf=pass (aspmx1.migadu.com: domain of guix-devel-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=guix-devel-bounces@gnu.org X-Migadu-Queue-Id: E677722E8B X-Spam-Score: -2.95 X-Migadu-Scanner: scn0.migadu.com X-TUID: wUD9B7/QR9K/ BTW, one thing that would be interesting too is to return 404 with a long =E2=80=98Cache-Control=E2=80=99 validity when the requested store item= is among the cached failures. We could also add an extra response header to explicitly communicate that the store item is known to fail to build. Ludo=E2=80=99.