[Openstack-operators] Shelving

Kris G. Lindgren klindgren at godaddy.com
Thu Aug 18 22:21:40 UTC 2016


Does shelving an instance also free up the instances reservation against that node?  If it doesn’t I assume that’s why it still counts against their quota?  IE Nova is still trying to keep a slot open for them on that server, so when you unshelv does it go back to the same node or does it go to a new node?

___________________________________________________________________
Kris Lindgren
Senior Linux Systems Engineer
GoDaddy

From: David Medberry <openstack at medberry.net>
Date: Thursday, August 18, 2016 at 3:49 PM
To: "Jonathan D. Proulx" <jon at csail.mit.edu>
Cc: "openstack-operators at lists.openstack.org" <openstack-operators at lists.openstack.org>
Subject: Re: [Openstack-operators] Shelving


On Thu, Aug 18, 2016 at 3:12 PM, Jonathan D. Proulx <jon at csail.mit.edu<mailto:jon at csail.mit.edu>> wrote:

True they do consume IPs.

In my configuration they do not consume any hypervisor disk.  I
*think* this is true of all configurations once the 'shelved' systems
are 'offloaded'.

i concur, that's the intent of shelving as I understand it, to free up the hypervisor by moving off of the hypervisor entirely. So in our case with libvirt, there are no "shut off" instance names listed with "virsh list --all". They truly are "shelved" with just glance storage (once they are "shelve-offload"ed).
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