[openstack-dev] [Glance] Replacing Glance DB code to Oslo DB code.

John Bresnahan jbresnah at redhat.com
Tue Aug 20 17:12:30 UTC 2013

Mark, good thoughts (as usual)

On 08/19/2013 09:15 PM, Mark Washenberger wrote:
> The goal isn't really to replace sqlalchemy completely.

Perhaps my problem is that I am not exactly sure what the goals are.
Cleanup (BL mixed in the BL seems wrong)?  HA or performance (are people
hitting limits that are traced to SQL) ?  Flexibility/Research
(plug-able modules for experimentation)?  I think it would help scope
the effort (and temper my concern about the work/reward ratio) if they
were enumerated in clear place.

> I'm hoping I can
> create a space where multiple drivers can operate efficiently without
> introducing bugs (i.e. pull all that business logic out of the driver!)
> I'll be very interested to see if people can, after such a refactoring,
> try out some more storage approaches, such as dropping the sqlalchemy
> orm in favor of its generic engine support or direct sql execution, as
> well as NoSQL what-have-you. We don't have to make all of the drivers
> live in the project, so it really can be a good place for interested
> parties to experiment.

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