From debbugs-submit-bounces@debbugs.gnu.org Tue Dec 12 06:46:25 2017 Received: (at submit) by debbugs.gnu.org; 12 Dec 2017 11:46:25 +0000 Received: from localhost ([127.0.0.1]:57741 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eOj0y-0002ZU-U0 for submit@debbugs.gnu.org; Tue, 12 Dec 2017 06:46:25 -0500 Received: from eggs.gnu.org ([208.118.235.92]:57835) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eOj0w-0002ZI-Tg for submit@debbugs.gnu.org; Tue, 12 Dec 2017 06:46:23 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eOj0q-00065c-Ur for submit@debbugs.gnu.org; Tue, 12 Dec 2017 06:46:17 -0500 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=-0.0 required=5.0 tests=BAYES_40 autolearn=disabled version=3.3.2 Received: from lists.gnu.org ([2001:4830:134:3::11]:49070) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1eOj0q-00065U-R9 for submit@debbugs.gnu.org; Tue, 12 Dec 2017 06:46:16 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:48799) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eOj0p-0001j5-Na for bug-guix@gnu.org; Tue, 12 Dec 2017 06:46:16 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eOj0l-00062f-PY for bug-guix@gnu.org; Tue, 12 Dec 2017 06:46:15 -0500 Received: from flashner.co.il ([178.62.234.194]:37835) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eOj0l-00061u-Hg for bug-guix@gnu.org; Tue, 12 Dec 2017 06:46:11 -0500 Received: from localhost (46-117-129-230.bb.netvision.net.il [46.117.129.230]) by flashner.co.il (Postfix) with ESMTPSA id BD46B4023C for ; Tue, 12 Dec 2017 11:46:09 +0000 (UTC) Date: Tue, 12 Dec 2017 13:46:08 +0200 From: Efraim Flashner To: bug-guix@gnu.org Subject: databases should be created with chattr +C Message-ID: <20171212114608.GB1873@macbook41> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="eAbsdosE1cNLO4uF" Content-Disposition: inline User-Agent: Mutt/1.9.1 (2017-09-22) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Received-From: 2001:4830:134:3::11 X-Spam-Score: -4.0 (----) 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: -4.0 (----) --eAbsdosE1cNLO4uF Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable We support running GuixSD on top of btrfs, and the prevailing wisdom is to mark databases (sqlite, postgresql, etc.) as 'chattr +C', that is, as not copy-on-write. It is honored under ext4, but it shouldn't cause any changes. --=20 Efraim Flashner =D7=90=D7=A4=D7=A8=D7=99=D7=9D = =D7=A4=D7=9C=D7=A9=D7=A0=D7=A8 GPG key =3D A28B F40C 3E55 1372 662D 14F7 41AA E7DC CA3D 8351 Confidentiality cannot be guaranteed on emails sent or received unencrypted --eAbsdosE1cNLO4uF Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEEoov0DD5VE3JmLRT3Qarn3Mo9g1EFAlovwX4ACgkQQarn3Mo9 g1Fhpw/6A46iev0r6CY0Ei+643qJLxkCW9DdFe2g2EYSyOMsYcwolpKURPXrDqGV ST4q3lDGQAKRr3m68/Qp50F6enY6a+d1ytYovOCX9I8SRDCx3BxfhE25LghFTY20 JXOfd6pwKMPhbELRrsTln0H5BAaqozWTjDqTMpggFIWgOoqRkDKMJPsRMsWi3Uo9 PNfSkj8NYEqc9L5myQJ6NhKyyv1PP0js1K0hAmnC+SoAJFSP/boRE3RpPBTyLkQN HLwOk5L1XocjrvawY0dIhatDcUXbXc+ZobPHr+o7QIzlTLGea7OWm87QS9h03acd T5pekuxGJkGk/q9BJXrDrNM/VWD2xHs6jtmCSSoDNaFKmaGCDz9wZ3aQA+TPoAil INM10oaJ+rszW+QdCe0oYcuQgYA3EsVcnnECGXZ8/69zcP0w+m96ipqSvndLmz5s ZNnNfFPmtME9bQQM4GcDKoTTJevnhIjp/5E+3TituszLq8nwZoPkf2b2CAZD9ydF hXan0c93Sk2C1ju75W3tKaMf0MnslEtKHuHbEC1tUCrUludkW8BiijTvnc/sDU7D /Y2khLDVsSZMf2hBUKSqpIKjYWqPz5l5sBq7ZnFLN70OBylH0Kt0qOROw91siUnJ 59FofDGiHickNLuflrq9dJd8XoWRekcJMQ822WIb5TOUHDRpu/g= =OYM8 -----END PGP SIGNATURE----- --eAbsdosE1cNLO4uF--