[openstack-dev] [nova] Required data migrations in Kilo, need Turbo Hipster tests updated

Dan Smith dms at danplanet.com
Thu Apr 23 03:16:40 UTC 2015

> If I selected all the instance_type_id's from the system-metadata table
> and used those uuid's to load the object with something like:
>         instance = objects.Instance.get_by_uuid(
>             context, instance_uuid,
>             expected_attrs=['system_metadata', 'flavor'])
> The tests would fail at that point when trying to read in the flavor as
> json. http://paste.openstack.org/show/205158/
> Basically without digging further it seems like I should be able to load
> an instance by uuid regardless of the state of my flavor(s). Since this
> fails it seems like there is something wrong with the flavor handling on
> the objects.

You should. The above is a reasonable result to get without the fix to
ensure that we create instance_extra records for instances missing it.

Do you still see the above with



> Another interesting thing is that migrate_flavor_data avoids migrating
> instances that are in the middle of an operation. The snapshot of
> databases we have include instances in this state. Since turbo-hipster
> is just testing against a snapshot in time there is no way for those
> instances to leave their working state and hence migrate_flavor_data can
> never finish (every run will leave instances undone). This therefore
> blocks the migrations from ever finishing.

Ah, yeah, that's interesting, but I think it's a restriction we have to
make for sanity.


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