[libvirt] [PATCH v10] support offline migration

[li guang]

在 2012-10-16二的 13:19 +0100，Daniel P. Berrange写道：
> On Thu, Oct 11, 2012 at 12:17:56PM +0800, liguang wrote:
> > original migration did not aware of offline case,
> > so, try to support offline migration quietly
> > (did not disturb original migration) by pass
> > VIR_MIGRATE_OFFLINE flag to migration APIs if only
> > the domain is really inactive, and
> > migration process will not puzzled by domain
> > offline and exit unexpectedly.
> > these changes did not take care of disk images the
> > domain required, for them could be transferred by
> > other APIs as suggested, then VIR_MIGRATE_OFFLINE
> > should not combined with VIR_MIGRATE_NON_SHARED_*.
> > if you want a persistent migration,
> > you should  do "virsh migrate --persistent" youself.
> > 
> > Signed-off-by: liguang <lig.fnst at cn.fujitsu.com>
> 
> This is still not quite working correctly. The following command
> must *not* run
> 
>   # virsh -c qemu+ssh://root@avocado/system migrate vm1 --offline qemu+ssh://root@mustard/system 
> 
> because it does not include the '--persistent' flag.
> 
> If I do set the --persistent flag though, that is now
> correctly operating. Likewise --undefinesource is
> working now.
> 
> The other bug remaining is that you are still creating
> an XML file /var/run/libvirt/qemu/$GUESTNAME.xml for
> the inactive guest. This is bogus, because that file
> should only exist if the guest is running.
> 
> Daniel

OK, I'll fix-up as you said, thanks!

-- 
liguang    lig.fnst at cn.fujitsu.com
FNST linux kernel team