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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
39e459b1-3878-41db-aaaf-7c7d0dfa2b19
41a60975-d6b8-468e-90bc-d7de58c2124d
46aec2ae-b6de-4503-a238-af736f81f1a4
50ec3d89-1c9d-4c28-adaf-26c924dfa3ed
_base
c6ec71a3-658c-4c7c-aa42-cc26296ce7fb
c72845e9-0d34-459f-b602-bb2ee409728b
compute_nodes
locks

Of these, only two show up in "nova list".

Chris