From: Michael Monnerie <michael.monnerie@is.it-management.at>
To: pgsql-admin@postgresql.org
Subject: Re: 8.3.5 broken after power fail
Date: Tue, 17 Feb 2009 12:20:54 +0100
Message-ID: <200902171220.54530@zmi.at> (raw)
> tether your daughter to the other side of the room? I'm not sure
> which parts of those mount options are dangerous or not. I use ext3
> stock with noatime. And a battery backed RAID. Smaller slower work
> group / station controllers (i.e. 5 year old server conrollers) go
> for pretty cheap and give pretty good performance with 2 or 4 drives.
I know the problem is with XFS and mount option "nobarrier" within a XEN
vm. Just last week I discussed with the XFS devs if that would be save
to use with a battery backed RAID. They said "depends on the
hypervisor". So now I proofed (not that I wanted!) that within XEN, XFS
should always have "barrier" on.
> AS for fixing it, I believe the answer involves creating a clog file
> full of zeros 16Meg or so, and pg_reset_xlog. Don't count on all
> your data being there or all your FK-PK type relationships to be
> correct, Immediately dump it, initdb and reload your data, fixing it
> as you go.
OK, that's a start. Trying... still an error:
pg_dump: Fehlermeldung vom Server: ERROR: missing chunk number 0 for
toast value 1460201 in pg_toast_1281127
pg_dump: Die Anweisung war: COPY public.dbmail_messageblks
(messageblk_idnr, physmessage_id, messageblk, blocksize, is_header) TO
stdout;
What now?
mfg zmi
--
// Michael Monnerie, Ing.BSc ----- http://it-management.at
// Tel: 0660 / 415 65 31 .network.your.ideas.
// PGP Key: "curl -s http://zmi.at/zmi.asc | gpg --import"
// Fingerprint: AC19 F9D5 36ED CD8A EF38 500E CE14 91F7 1C12 09B4
// Keyserver: wwwkeys.eu.pgp.net Key-ID: 1C1209B4
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-admin@postgresql.org
Cc: michael.monnerie@is.it-management.at
Subject: Re: 8.3.5 broken after power fail
In-Reply-To: <200902171220.54530@zmi.at>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox