[openstack-dev] [nova] The VM migration among compute nodes

Xiandong Meng mengxiandong at gmail.com
Wed Dec 3 08:44:48 UTC 2014

            It seems you have set a per-condition here: A Kilo controller
should be able to manage to a Juno compute node without any problem.
I am not so confident about this per-requites. We also need confirmation
from the community about it.


Xiandong Meng <mengxiandong at gmail.com>
mengxiandong at gmail.com

On Wed, Dec 3, 2014 at 4:14 PM, Li Junhong <lijh.hust at gmail.com> wrote:

> Dear All,
> I'm working on migrating the VMs among compute nodes, I read the
> python-novaclient and nova codes and did some investigation in nova to see
> the options to migrate VM between hosts, shown as below, could you guys
> help to have a look, add your comments and correct me if I miss anything?
> It seems that the following existing commands all have their pro and cons.
> Is there a command that satisfies the following requirement:
>    - It can migrate the running or non-running VMs among hosts
>    - The migration target host can be identified
>    - The new VM on the migration target host looks exactly the same as
>    the original one, the changes on the VM operating system can be retained
> The following commands are pairs, the first one is for a single server,
> while the second one is for host (the commands will iterate the VMs running
> on the host and run the first command against each of them)
>> --
> Best Regards!
> ------------------------------------------------------------------------
> Junhong, Li
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> OpenStack-dev at lists.openstack.org
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