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Yes, I know it hasn't been tested, but as libvirt's interface is quite
similar, I was hoping to make it work with xen. This would also be nice for
openstack to broad its officially tested support.

I'm afraid I'm not even close to Boston, I'm frequently working in this
environment, so any clues and suggestions could help.

2011/10/6 <masumotok at nttdata.co.jp>

> live migration + Xen is not tested in current version .
> if you are in boston now and have xen environment, I may be able to help
> you.
>
> Kei
>
> ________________________________
> ²î³öÈË: openstack-bounces+masumotok=nttdata.co.jp at lists.launchpad.net[openstack-bounces+masumotok=
> nttdata.co.jp at lists.launchpad.net] ¤Ï Rog¨¦rio Vinhal Nunes [
> rogervn at dcc.ufmg.br] ¤Î´úÀí
> ËÍÐÅÈÕ•r: 2011Äê10ÔÂ7ÈÕ 2:42
> ÍðÏÈ: openstack
> ¼þÃû: [Openstack] Live Migration and Xen + Libvirt
>
> I'm trying to make live migration work in an environment with Xen and
> Libvirt, but I found some issues.
>
> The first one I managed to "correct", but it really looks like a bug. The
> live migration command will fail and the logs will indicate
> "InstanceNotRunning". That's because when a xen virtual machine is not using
> the processor, its status is "blocked". I "corrected" it by sending the
> instance in an infinite CPU loop and waiting for nova-compute to update the
> DB with the status "running". I don't know how these status are handled by
> KVM, but at least the migration check should take that in consideration if
> it plans to work with xen.
>
> The second one is a little more complicated and I haven't found a solution
> yet, so you may help me with it. After making the vm "running" the live
> migration just fails and the logs rise an error "Cannot find "'model'". Is
> there any configuration that is related to this?
>
> trace from nova-manage.log:
>
> (nova): TRACE: Traceback (most recent call last):
> (nova): TRACE:   File "/usr/bin/nova-manage", line 2141, in <module>
> (nova): TRACE:     main()
> (nova): TRACE:   File "/usr/bin/nova-manage", line 2129, in main
> (nova): TRACE:     fn(*fn_args, **fn_kwargs)
> (nova): TRACE:   File "/usr/bin/nova-manage", line 987, in live_migration
> (nova): TRACE:     self._migration(ec2_id, dest)
> (nova): TRACE:   File "/usr/bin/nova-manage", line 976, in _migration
> (nova): TRACE:     "block_migration": block_migration}})
> (nova): TRACE:   File "/usr/lib/pymodules/python2.6/nova/rpc/__init__.py",
> line 45, in call
> (nova): TRACE:     return get_impl().call(context, topic, msg)
> (nova): TRACE:   File
> "/usr/lib/pymodules/python2.6/nova/rpc/impl_kombu.py", line 739, in call
> (nova): TRACE:     rv = list(rv)
> (nova): TRACE:   File
> "/usr/lib/pymodules/python2.6/nova/rpc/impl_kombu.py", line 703, in __iter__
> (nova): TRACE:     raise result
> (nova): TRACE: RemoteError: RemoteError Error cannot find 'model'
>
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