From: Olaf Hering <olaf@aepfle.de>
To: xen-devel@lists.xenproject.org,
Anthony PERARD <anthony.perard@citrix.com>
Subject: Re: status of non-live migration of HVM with libvirt
Date: Tue, 9 Apr 2019 18:06:42 +0200 [thread overview]
Message-ID: <20190409160642.GA18345@aepfle.de> (raw)
In-Reply-To: <20190107110737.1ef0a0ef.olaf@aepfle.de>
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Anthony,
looks like this fix missed qemu-4.0.
What is your opinion on this fix? I think there was zero reply...
Olaf
On Mon, Jan 07, Olaf Hering wrote:
> Am Fri, 4 Jan 2019 17:48:31 +0100
> schrieb Olaf Hering <olaf@aepfle.de>:
>
> > Am Fri, 4 Jan 2019 16:57:55 +0100
> > schrieb Olaf Hering <olaf@aepfle.de>:
> >
> > > worth keeping (and fixing) the concept of an "offline migration"
> >
> > And regarding the fix, it looks like qmp_xen_save_devices_state does not need the concept of "live". Just shutdown the blockdevices and be done with it?
>
> Anthony, it looks like 5d6c599fe1 ("migration, xen: Fix block image lock issue on live migration") went too far. Why does stopping the disks at the very end of the save/migrate process depend on "live"? During a migration the disks have to be released either way. During "xl save" the domU may continue to run, if '-c' was specified.
>
> It seems the 'live' parameter for xen-save-devices-state is not needed.
>
> Olaf
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WARNING: multiple messages have this Message-ID (diff)
From: Olaf Hering <olaf@aepfle.de>
To: xen-devel@lists.xenproject.org,
Anthony PERARD <anthony.perard@citrix.com>
Subject: Re: [Xen-devel] status of non-live migration of HVM with libvirt
Date: Tue, 9 Apr 2019 18:06:42 +0200 [thread overview]
Message-ID: <20190409160642.GA18345@aepfle.de> (raw)
Message-ID: <20190409160642.CQMKonZ3QAgjbogGYPq8AWVLcvqHcVPh3VGg2xpU4nE@z> (raw)
In-Reply-To: <20190107110737.1ef0a0ef.olaf@aepfle.de>
[-- Attachment #1.1: Type: text/plain, Size: 1010 bytes --]
Anthony,
looks like this fix missed qemu-4.0.
What is your opinion on this fix? I think there was zero reply...
Olaf
On Mon, Jan 07, Olaf Hering wrote:
> Am Fri, 4 Jan 2019 17:48:31 +0100
> schrieb Olaf Hering <olaf@aepfle.de>:
>
> > Am Fri, 4 Jan 2019 16:57:55 +0100
> > schrieb Olaf Hering <olaf@aepfle.de>:
> >
> > > worth keeping (and fixing) the concept of an "offline migration"
> >
> > And regarding the fix, it looks like qmp_xen_save_devices_state does not need the concept of "live". Just shutdown the blockdevices and be done with it?
>
> Anthony, it looks like 5d6c599fe1 ("migration, xen: Fix block image lock issue on live migration") went too far. Why does stopping the disks at the very end of the save/migrate process depend on "live"? During a migration the disks have to be released either way. During "xl save" the domU may continue to run, if '-c' was specified.
>
> It seems the 'live' parameter for xen-save-devices-state is not needed.
>
> Olaf
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_______________________________________________
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next prev parent reply other threads:[~2019-04-09 16:06 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-04 15:57 status of non-live migration of HVM with libvirt Olaf Hering
2019-01-04 16:48 ` Olaf Hering
2019-01-07 10:07 ` Olaf Hering
2019-04-09 16:06 ` Olaf Hering [this message]
2019-04-09 16:06 ` [Xen-devel] " Olaf Hering
2019-04-10 16:25 ` Anthony PERARD
2019-04-10 16:25 ` [Xen-devel] " Anthony PERARD
2019-04-10 18:42 ` Olaf Hering
2019-04-10 18:42 ` [Xen-devel] " Olaf Hering
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