From: Jamie Lokier <jamie@shareable.org>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] qcow2 - safe on kill? safe on power fail?
Date: Tue, 22 Jul 2008 15:22:54 +0100 [thread overview]
Message-ID: <20080722142254.GB20829@shareable.org> (raw)
In-Reply-To: <48857926.5020708@qumranet.com>
Avi Kivity wrote:
> >Seems like a band-aid to me as SIGKILL is still an issue. Plus it
> >would involve modifying all disk formats, not just QCOW2. I'd rather
> >see proper journal support added to QCOW2 myself.
>
> Journalling is so out of fashion. It's better to sequence the
> operations so that failure results in a leak instead of corruption.
That would be find. If there's too much leakage after a time, it
would be easy enough to "qemu convert" to recreate the image without
leakage.
Or trees, trees are the new journals... :-) Still there's always
the possibility of errors to recover from, no matter how careful.
-- Jamie
prev parent reply other threads:[~2008-07-22 14:00 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-05 21:18 [Qemu-devel] Signal handling and qcow2 image corruption David Barrett
2008-03-05 21:55 ` Anthony Liguori
2008-03-05 23:48 ` David Barrett
2008-03-06 6:57 ` Avi Kivity
2008-07-21 18:10 ` [Qemu-devel] qcow2 - safe on kill? safe on power fail? Jamie Lokier
2008-07-21 19:43 ` Anthony Liguori
2008-07-21 21:26 ` Jamie Lokier
2008-07-21 22:14 ` Anthony Liguori
2008-07-21 23:47 ` Jamie Lokier
2008-07-22 6:06 ` Avi Kivity
2008-07-22 14:08 ` Anthony Liguori
2008-07-22 14:46 ` Jamie Lokier
2008-07-22 19:11 ` Avi Kivity
2008-07-22 14:32 ` Jamie Lokier
2008-07-21 22:00 ` Andreas Schwab
2008-07-21 22:15 ` Anthony Liguori
2008-07-21 22:22 ` David Barrett
2008-07-21 22:50 ` Anthony Liguori
2008-07-22 6:07 ` Avi Kivity
2008-07-22 14:11 ` Anthony Liguori
2008-07-22 14:36 ` Avi Kivity
2008-07-22 16:16 ` Jamie Lokier
2008-07-22 19:13 ` Avi Kivity
2008-07-22 20:04 ` Jamie Lokier
2008-07-22 21:25 ` Avi Kivity
2008-07-22 14:22 ` Jamie Lokier [this message]
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