Open Stack

Yep, it seems that our purposes are maintenance/test both.
BTW, if one admin/oprator want to maintenance a host, he/she may want to relocate  all instance to another health node.
If there is a command just like  'nova live-migrate --all' and he/she need not care about selecting which node as destination, all works will be done by nova-scheduler.

Best wishes,
Yale Yuan

From: Razique Mahroua [mailto:razique.mahroua at gmail.com]
Sent: Monday, January 07, 2013 4:56 PM
To: Yuan, Ye A
Cc: openstack-operators at lists.openstack.org
Subject: Re: [Openstack-operators] A concept feature named 'scheduling live migration'

Hi Yuan ,
would it be similar somehow to the feature which allows you to disable a service via keystone on a server?
see : https://bugs.launchpad.net/keystone/+bug/1048662

Razique Mahroua - Nuage & Co
razique.mahroua at gmail.com<mailto:razique.mahroua at gmail.com>
Tel : +33 9 72 37 94 15

[cid:image001.jpg at 01CDED8B.2F0EAB60]

Le 7 janv. 2013 à 09:01, "Yuan, Ye A" <ye.a.yuan at intel.com<mailto:ye.a.yuan at intel.com>> a écrit :


Hi all,
There is a feature in my mind just as below:
In VMware, admin can use maintenance mode to set a host to entering maintenance mode, in which the host does not allow you to deploy or power on a virtual machine until all running virtual machines are powered down or migrated to different hosts.
So, if there is a feature that enable scheduler while live migration rather than use destination hostname argument in shell command 'nova live-migration <instance-uuid> <hostname>', OpenStack can implement maintenance mode too. In other words, operator can migrate instance without specific destination hostname.
If anyone has some suggestions, please feel free to let me know.

Best wishes,
Yale Yuan

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