[openstack-dev] [nova] BUG? nova-compute should delete unused instance files on boot
vishvananda at gmail.com
Mon Oct 7 22:34:26 UTC 2013
There is a configuration option stating what to do with instances that are still in the hypervisor but have been deleted from the database. I think you want:
You probably also want
to bring back the instances that were running before the node was powered off. We should definitely consider changing the default of these two values since I think the default values are probably not what most people would want.
On Oct 7, 2013, at 1:24 PM, Chris Friesen <chris.friesen at windriver.com> wrote:
> On 10/07/2013 12:44 PM, Russell Bryant wrote:
>> On 10/07/2013 02:28 PM, Chris Friesen wrote:
>>> I've been doing a lot of instance creation/deletion/evacuate and I've
>>> noticed that if I
>>> 1)create an instance
>>> 2) power off the compute node it was running on
>>> 3) delete the instance
>>> 4) boot up the compute node
>>> then the instance rootfs stays around in /var/lib/nova/instances/.
>>> Eventually this could add up to significant amounts of space.
>>> Is this expected behaviour? (This is on grizzly, so maybe havana is
>>> different.) If not, should I file a bug for it?
>>> I think it would make sense for the compute node to come up, query all
>>> the instances in /var/lib/nova/instances/, and delete the ones for
>>> instances that aren't in the database.
>> How long are you waiting after starting up the compute node? I would
>> expect it to get cleaned up by a periodic task, so you might have to
>> wait roughly 10 minutes (by default).
> This is nearly 50 minutes after booting up the compute node:
> cfriesen at compute2:/var/lib/nova/instances$ ls -1
> Of these, only two show up in "nova list".
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