[Openstack] instance_info_caches table, nova not populating for some instances

Don Waterloo don.waterloo at gmail.com
Wed Jan 21 03:20:49 UTC 2015


For any one else who hits this, I entered
https://bugs.launchpad.net/nova/+bug/1413049
which contains a patch.

In a nutshell, @ the bottom end of reloading/healing the cache, it turns
around and uses the cache in _gather_port_ids_and_networks().

My fix is to use the neutron api and call list_ports.

On 20 January 2015 at 14:04, Don Waterloo <don.waterloo at gmail.com> wrote:

>
>
> On 20 January 2015 at 13:22, Nathanael Burton <
> nathanael.i.burton at gmail.com> wrote:
>
>> Don,
>>
>> I created this bug [1] for Nova a while ago which sounds similar to the
>> problem you're having although we were running nova-network not neutron.  I
>> proposed a fix [1] for that bug but it never got merged because I didn't
>> have time to write the tests.
>>
>> [1] - https://bugs.launchpad.net/nova/+bug/1378459
>> [2] - https://review.openstack.org/126633
>>
>> Nate
>>
>>
> Thank you for that. I'm working on finding the root cause now. mine for
> sure is not an upgrade nor a manual change to the db. In my case, the
> instance starts life with a good info_cache, and then it mysteriously goes
> to [] (python empty array). The heal keeps getting the value [] each time
> for these instances.
>
> So some debuggery is ahead of me. It sounds related for sure.
>
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