[openstack-dev] Gate proposal - drop Postgresql configurations in the gate

Clint Byrum clint at fewbar.com
Thu Jun 12 17:28:35 UTC 2014

Excerpts from Matt Riedemann's message of 2014-06-12 08:15:46 -0700:
> On 6/12/2014 9:38 AM, Mike Bayer wrote:
> >
> > On 6/12/14, 8:26 AM, Julien Danjou wrote:
> >> On Thu, Jun 12 2014, Sean Dague wrote:
> >>
> >>> That's not cacthable in unit or functional tests?
> >> Not in an accurate manner, no.
> >>
> >>> Keeping jobs alive based on the theory that they might one day be useful
> >>> is something we just don't have the liberty to do any more. We've not
> >>> seen an idle node in zuul in 2 days... and we're only at j-1. j-3 will
> >>> be at least +50% of this load.
> >> Sure, I'm not saying we don't have a problem. I'm just saying it's not a
> >> good solution to fix that problem IMHO.
> >
> > Just my 2c without having a full understanding of all of OpenStack's CI
> > environment, Postgresql is definitely different enough that MySQL
> > "strict mode" could still allow issues to slip through quite easily, and
> > also as far as capacity issues, this might be longer term but I'm hoping
> > to get database-related tests to be lots faster if we can move to a
> > model that spends much less time creating databases and schemas.
> >
> >
> >
> > _______________________________________________
> > OpenStack-dev mailing list
> > OpenStack-dev at lists.openstack.org
> > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
> >
> Is there some organization out there that uses PostgreSQL in production 
> that could stand up 3rd party CI with it?
> I know that at least for the DB2 support we're adding across the 
> projects we're doing 3rd party CI for that. Granted it's a proprietary 
> DB unlike PG but if we're talking about spending resources on testing 
> for something that's not widely used, but there is a niche set of users 
> that rely on it, we could/should move that to 3rd party CI.
> I'd much rather see us spend our test resources on getting multi-node 
> testing running in the gate so we can test migrations in Nova.

I think this is really the answer. To paraphrase the wise and well
experienced engineer, Beyoncé:

"If you like it then you shoulda put CI on it."

The project will succumb to a tragedy of the commons if it bends over
backwards for every deployment variation available. But 3rd parties who
care can always contribute resources and (if they play nice...) votes.

I think there are a tiny number of things that will cause corner case
bugs that could creep in, but as Sean says, we haven't actually seen

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