Date: Fri, 25 Mar 2011 16:41:34 +0100 From: Baptiste Daroussin <bapt@freebsd.org> To: gahr@freebsd.org Cc: ports@freebsd.org, Alexander Leidinger <Alexander@leidinger.net>, hackers@freebsd.org, current@freebsd.org, Julien Laffaye <jlaffaye@freebsd.org> Subject: Re: [ECFT] pkgng 0.1-alpha1: a replacement for pkg_install Message-ID: <AANLkTim-H2=cJG24Cg7DyfdnASSfRpu15TVCBOXqk=2X@mail.gmail.com> In-Reply-To: <20110325153520.GB23861@gahrfit.gahr.ch> References: <20110325101111.GA36840@azathoth.lan> <20110325150653.21132ej6abxmjpgk@webmail.leidinger.net> <AANLkTikxi%2BjgnLrFg57o1N-Qzip9juaqXGzK2eYLkpFr@mail.gmail.com> <20110325153814.20287h1594npcu80@webmail.leidinger.net> <AANLkTimZ5B4bYp1_wNLHbB_jSwcnzKvf7dpO35W1k1%2B2@mail.gmail.com> <20110325153520.GB23861@gahrfit.gahr.ch>
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2011/3/25 Pietro Cerutti <gahr@freebsd.org>: > On 2011-Mar-25, 15:03, Julien Laffaye wrote: >> >>> What about DB corruption/loss? Do you keep the /var/db/pkg/<package>/xxx >> >>> files even with pkgng and only use the DB as a way to speed up some work >> >>> (so >> >>> the DB corruption just requires to run pkg2ng), or are you lost of the DB >> >>> is >> >>> lost? >> >>> >> >> >> >> Nothing is done about DB corruption/loss, I am not sure we need to do >> >> something. >> >> Maybe. >> > >> > I would say "for sure". Info: In Solaris 10 sqlite is used for the service >> > managenemt framework (SMF). It is possible that the DB is corrupt in some >> > bad situations. In this case you have to rebuild the DB (script provided, >> > been there, had to use it). >> >> If sqlite is properly used with transactions, it is very hard to >> corrupt the database. But if hardware lies to us and say that the data >> is on disk whereas it isnt... what can we do? >> Another potential problem is fsync(), but if it is broken on FreeBSD >> we want to fix it! >> >> BTW, the goal is to only have the database and not the flat files. >> If you are paranoid about power outage, use something like zfs snapshots... > > No need to look for strange scenarios, I'm surely going to sudo rm -f the file > more sooner than later, so... maybe just save a copy? > > -- > Pietro Cerutti > The FreeBSD Project > gahr@FreeBSD.org > > PGP Public Key: > http://gahr.ch/pgp > I think we can provide a periodic script activable by users (I let other decide if it has to be activated by default or not) that does a pkg backup /path/to/file/backup and xz it. because copying can be a huge. 40Mo for the database here, corresponding to 70Mo in the old format and to 600 packages. the dump xzed is only 3Mo regards, Bapthome | help
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