I belive this can be possible by setting the allow_resize_same_host. More details can be found here: http://www.madorn.com/resize-on-single-compute.html . I believe the issue Dave is talking about is specifically targeting the same host for resize assuming the host can support it in a milti-node setup. As getting the scheduler to choose the current host in the multihost setup is 95 percent of the battle.
-------- Original message -------- From: David Medberry <[email protected]> Date: 05/26/2015 4:36 AM (GMT-08:00) To: Abhishek Talwar <[email protected]> Cc: [email protected] Subject: Re: [Openstack-operators] Can single node devstack OpenStack installation have VM migration No. Providing a mechanism for this is discussed from time to time, but it is not currently available. All
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