[Openstack-operators] Need feedback for nova aborting cold migration function

Flint WALRUS gael.therond at gmail.com
Wed May 2 08:52:24 UTC 2018

As an operator dealing with platforms that do cold migration I would like
to be able to abort and rollback the process.

That would give us a better service quality and availability.

We do have no choices but to use cold migration on some of our remote sites
as they don’t get a unified storage such as CEPH for cost management.

Those remote sites have to growth and gain traction before being budgeted
for a truly powerful distributed storage backend. Due to such limitations I
would love to be able to reduce the time our customers are impacted by such
move while doing maintenance or any other jobs requiring us to do a

Thanks for the hard work on this topic!
Le mar. 1 mai 2018 à 03:03, Takashi Natsume <natsume.takashi at lab.ntt.co.jp>
a écrit :

> Hi everyone,
> I'm going to add the aborting cold migration function [1] in nova.
> I would like to ask operators' feedback on this.
> The cold migration is an administrator operation by default.
> If administrators perform cold migration and it is stalled out,
> users cannot do their operations (e.g. starting the VM).
> In that case, if administrators can abort the cold migration by using
> this function,
> it enables users to operate their VMs.
> If you are a person like the following, would you reply to this mail?
> * Those who need this function
> * Those who will use this function if it is implemented
> * Those who think that it is better to have this function
> * Those who are interested in this function
> [1] https://review.openstack.org/#/c/334732/
> Regards,
> Takashi Natsume
> NTT Software Innovation Center
> E-mail: natsume.takashi at lab.ntt.co.jp
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