From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp1 ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms0.migadu.com with LMTPS id E1GLAkBwimFOrAAAgWs5BA (envelope-from ) for ; Tue, 09 Nov 2021 13:57:36 +0100 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp1 with LMTPS id OMn3OD9wimGTXAAAbx9fmQ (envelope-from ) for ; Tue, 09 Nov 2021 12:57:35 +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 BED8C35B03 for ; Tue, 9 Nov 2021 13:57:35 +0100 (CET) Received: from localhost ([::1]:35350 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mkQgw-0003F0-Nq for larch@yhetil.org; Tue, 09 Nov 2021 07:57:34 -0500 Received: from eggs.gnu.org ([209.51.188.92]:48530) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mkQgQ-0002Ol-P2 for guix-patches@gnu.org; Tue, 09 Nov 2021 07:57:02 -0500 Received: from debbugs.gnu.org ([209.51.188.43]:49582) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mkQgQ-0000m9-Ft for guix-patches@gnu.org; Tue, 09 Nov 2021 07:57:02 -0500 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1mkQgQ-0007ER-El for guix-patches@gnu.org; Tue, 09 Nov 2021 07:57:02 -0500 X-Loop: help-debbugs@gnu.org Subject: [bug#51427] [PATCH] nix: libstore: Do not remove unused links when deleting specific items. Resent-From: Ludovic =?UTF-8?Q?Court=C3=A8s?= Original-Sender: "Debbugs-submit" Resent-CC: guix-patches@gnu.org Resent-Date: Tue, 09 Nov 2021 12:57:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 51427 X-GNU-PR-Package: guix-patches X-GNU-PR-Keywords: patch To: Jack Hill Cc: 51427@debbugs.gnu.org, Liliana Marie Prikler , Maxim Cournoyer Received: via spool by 51427-submit@debbugs.gnu.org id=B51427.163646260527771 (code B ref 51427); Tue, 09 Nov 2021 12:57:02 +0000 Received: (at 51427) by debbugs.gnu.org; 9 Nov 2021 12:56:45 +0000 Received: from localhost ([127.0.0.1]:32895 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mkQg9-0007Dq-Hd for submit@debbugs.gnu.org; Tue, 09 Nov 2021 07:56:45 -0500 Received: from eggs.gnu.org ([209.51.188.92]:47746) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mkQg7-0007Dc-GV for 51427@debbugs.gnu.org; Tue, 09 Nov 2021 07:56:44 -0500 Received: from [2001:470:142:3::e] (port=36972 helo=fencepost.gnu.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mkQg1-0000dx-V5; Tue, 09 Nov 2021 07:56:37 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-Version:In-Reply-To:Date:References:Subject:To: From; bh=DtO+krCApB3Tnz0Sz/oaGQ7fBcgQ0i8zH446J5TEnsQ=; b=dkITqtRNItK6dw+Ry73v Br+KwRa/9BNPdNT/AjbMmX9yH31nnjCllCXYYoc+QJ+K/GOumrEqehgyqhagsTa4JxXWSvimhh4Ly TAfLxvdZjI8jU+2q3Vnlec/rsgVgeV6lAHVg+nZ6gOQsxHx1YoOV/J+JSYyjlr43pcYii+Lqx5csb 9Pin/XNVCzoGmJNTGZCPd9IW0i9O8PsQagK/+sXuy7vU48fPuQpcFuaD8NrUg98I5XkVsdJIslPCH XE5Qc0wTlCbHl4sVYWoYoSDgaItWAM2j2PlomYaagZEiffXLjzC+TAPCG8unWdUcjecSAdWEcPK3a lpfKXquvG1qQeg==; Received: from 91-160-117-201.subs.proxad.net ([91.160.117.201]:54411 helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mkQg1-00027y-Kx; Tue, 09 Nov 2021 07:56:37 -0500 From: Ludovic =?UTF-8?Q?Court=C3=A8s?= References: <20211027034918.4591-1-maxim.cournoyer@gmail.com> <87o8795j61.fsf@gnu.org> <5c2dd60acfaa7d74b7554babb3e223bc855bac8a.camel@gmail.com> <87h7cxp9tl.fsf@gnu.org> <87sfwg7w9z.fsf@gmail.com> <87ee7tmdbd.fsf@gnu.org> <87k0hi0xzp.fsf@gmail.com> Date: Tue, 09 Nov 2021 13:56:35 +0100 In-Reply-To: (Jack Hill's message of "Mon, 8 Nov 2021 23:57:23 -0500 (EST)") Message-ID: <87lf1xmqrg.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: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: guix-patches@gnu.org List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-patches-bounces+larch=yhetil.org@gnu.org Sender: "Guix-patches" X-Migadu-Flow: FLOW_IN ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1636462655; 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:resent-cc: resent-from:resent-sender:resent-message-id:in-reply-to:in-reply-to: references:references:list-id:list-help:list-unsubscribe: list-subscribe:list-post:dkim-signature; bh=DtO+krCApB3Tnz0Sz/oaGQ7fBcgQ0i8zH446J5TEnsQ=; b=TeaxfuusldFUdrJk8PrGD96237MGo9GRKaDgRth0DSEisurmJ1TcWm8oybf8C20JCCHZSX DfseZEpqGCVS736nCgfbjd9+2we+rcck2b3jMK4SQpvkSqSFA4VusJn6Lu+CkVuukbyJ/2 o+iG5MzQkaaqS8brZ++2qm/9kkc3KrhJ0i8v0Ku1xGTgdUZxOIeVsisPddpS6SqydN8pYc yGeVzaH8uPgkyLgM2mezjoQhSUqm7SLj5q+sirsmhDuEjDmie5kdwvd7WlSD8s3UMlL3Z1 HNuhfwEYTQPDJpsyjDtqM/m8UCs1ci7hLfOxNtL/bVUW3vgtGoR77bLn68kHSg== ARC-Seal: i=1; s=key1; d=yhetil.org; t=1636462655; a=rsa-sha256; cv=none; b=gq1tezotb8cby/WV80E7/7cvg5+m31XrpSJz/Tt+dFIes/JbsRHE0crnxkAZuG0ffc9t4K 4aJ2EEAUlIpzLa2qROu2Gh7G1cWPVVP/D7xULn9Z5fEMKd8SGJ+JFgF2C68OwhFhfHJdPN svCOy4C3r4iX4uc5dgHx63q3J5nxJDfMe9jt1zydN38HrImdHhmdCkIF/oFGbMs8uQDilp mHd8QU4aNxyswOvcvgz/mSKq8BRuC8+ROSXM/w26ZXPHX5YwprN+Z9+ndRgU7fEXofcRka WeJVGDknVQ0XFnmTvLyqEXjESqV73bQU2iZjWZ/a2wA/TvUoC7+CyDe7jwRaRg== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=gnu.org header.s=fencepost-gnu-org header.b=dkITqtRN; spf=pass (aspmx1.migadu.com: domain of guix-patches-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=guix-patches-bounces@gnu.org X-Migadu-Spam-Score: -2.02 Authentication-Results: aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=gnu.org header.s=fencepost-gnu-org header.b=dkITqtRN; dmarc=pass (policy=none) header.from=gnu.org; spf=pass (aspmx1.migadu.com: domain of guix-patches-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=guix-patches-bounces@gnu.org X-Migadu-Queue-Id: BED8C35B03 X-Spam-Score: -2.02 X-Migadu-Scanner: scn1.migadu.com X-TUID: t1Sc8UwgmNDv Hi, Jack Hill skribis: > On Mon, 8 Nov 2021, Maxim Cournoyer wrote: > >> Ludovic Court=C3=A8s writes: >> >>> BTW, those using Btrfs can probably use =E2=80=98--disable-deduplicatio= n=E2=80=99 and be >>> done with it. >> >> I erroneously used to think that Btrfs could do live deduplication, but >> it doesn't. There are external tools to do out of band / batch >> deduplication though [0]; so if they perform better than the guix daemon= 's >> own dedup, perhaps we could document this way out for our Btrfs users. >> >> [0] https://btrfs.wiki.kernel.org/index.php/Deduplication > > A little while ago I had hoped to test btrfs with > --disable-deduplication and bees [1] as the deduplication agent, but > wasn't able to successfully run a system with --disable-deduplication > because I needed the deduplication to cover up problem with grafts > [2]. Until we resolve the second issue, I don't think we should > recommend folks run the daemon with --disable-deduplication. > > [1] https://issues.guix.gnu.org/47983 (still missing a service) > [2] https://issues.guix.gnu.org/47115 Oh, right. We didn=E2=80=99t quite get to the bottom of #2. Is it still an issue? Some questions remained opened. Thanks, Ludo=E2=80=99.