Re: [ECFT] pkgng 0.1-alpha1: a replacement for pkg_install

From: Pietro Cerutti <gahr_at_freebsd.org>
Date: Fri, 25 Mar 2011 16:35:21 +0100
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_at_FreeBSD.org

PGP Public Key:
http://gahr.ch/pgp

Received on Fri Mar 25 2011 - 14:35:23 UTC

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