From debbugs-submit-bounces@debbugs.gnu.org Thu Jan 09 05:53:02 2020 Received: (at submit) by debbugs.gnu.org; 9 Jan 2020 10:53:02 +0000 Received: from localhost ([127.0.0.1]:51857 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ipVR0-0005no-Kq for submit@debbugs.gnu.org; Thu, 09 Jan 2020 05:53:02 -0500 Received: from lists.gnu.org ([209.51.188.17]:41524) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ipVQy-0005nM-M8 for submit@debbugs.gnu.org; Thu, 09 Jan 2020 05:53:01 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:43332) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ipVQx-0004Hd-DQ for bug-guix@gnu.org; Thu, 09 Jan 2020 05:53:00 -0500 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=0.8 required=5.0 tests=BAYES_50 autolearn=disabled version=3.3.2 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ipVQv-00041e-Oe for bug-guix@gnu.org; Thu, 09 Jan 2020 05:52:58 -0500 Received: from mout-p-102.mailbox.org ([2001:67c:2050::465:102]:51002) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1ipVQv-0003fz-FD for bug-guix@gnu.org; Thu, 09 Jan 2020 05:52:57 -0500 Received: from smtp1.mailbox.org (smtp1.mailbox.org [80.241.60.240]) (using TLSv1.2 with cipher ECDHE-RSA-CHACHA20-POLY1305 (256/256 bits)) (No client certificate requested) by mout-p-102.mailbox.org (Postfix) with ESMTPS id 47tjd04PV7zKmVD for ; Thu, 9 Jan 2020 11:52:52 +0100 (CET) X-Virus-Scanned: amavisd-new at heinlein-support.de Received: from smtp1.mailbox.org ([80.241.60.240]) by spamfilter01.heinlein-hosting.de (spamfilter01.heinlein-hosting.de [80.241.56.115]) (amavisd-new, port 10030) with ESMTP id ORGXeI9EE2_7 for ; Thu, 9 Jan 2020 11:52:48 +0100 (CET) From: Robert Vollmert Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.11\)) Subject: nginx caching headers are broken due to epoch store timestamps Message-Id: Date: Thu, 9 Jan 2020 11:52:47 +0100 To: bug-guix@gnu.org X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2001:67c:2050::465:102 X-Spam-Score: -1.6 (-) X-Debbugs-Envelope-To: submit X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -2.6 (--) I=E2=80=99ve been having hard-to-debug caching issues serving up static = files with nginx. It turns out this is due to nginx computing e-tag headers from file timestamps, which are all epoch in the guix store. I=E2=80=99ve fixed this on my server by applying a patch from Nix: = https://github.com/robx/guix/commit/4b406f5bc608b3c0e18e15795d8fe61d3477a3= e2