[openstack-dev] [nova] Austin summit versioned notification

Balázs Gibizer balazs.gibizer at ericsson.com
Tue May 3 15:17:54 UTC 2016


> -----Original Message-----
> From: Matt Riedemann [mailto:mriedem at linux.vnet.ibm.com]
> Sent: May 03, 2016 15:58
> To: openstack-dev at lists.openstack.org
> Subject: Re: [openstack-dev] [nova] Austin summit versioned notification
> 
> On 5/3/2016 3:10 AM, Balázs Gibizer wrote:
> > Hi,
> >
> > Last week Friday in Austin we discussed the way forward with the
> versioned
> > notification transformation in Nova.
> >
> > We agreed that when we separate the object model use for notifications
> from
> > the nova object model we still use the NovaObject as a base class to avoid
> > change in the wire format and the major version bump it would cause.
> > However we won't register the notification object into the
> NovaObjectRegistry.
> 
> We also said that since the objects won't be registered, we still want
> to test their hashes in case something changes, so register the
> notification objects in the test that checks for changes (even though
> they aren't registered globally), this will keep us from slipping.

Thanks for pointing this out. The spec is already up to date with this 
agreements.

> 
> > In general we agreed that we move forward with the transformation
> according
> > to the spec [1].
> >
> > Regarding the schema generation for the notifications we agreed to
> > propose a general JSON Schema generation implementation to
> > oslo.versionedobjects [2] that can be used in Nova later to generate
> > schemas for the notification object model.
> >
> > To have a way to synchronize our effort I'd like to restart the weekly
> > subteam meeting [5]. As the majority of the subteam is in US and EU I
> propose
> > to continue the currently existing time slot UTC 17:00 every Tuesday.
> > I proposed the frequency increase from biweekly to weekly here [3].
> > This means that we can meet today 17:00 UTC [4] on #openstack-meeting-
> 4.
> >
> > Cheers,
> > Gibi
> >
> > [1] https://review.openstack.org/#/c/286675/ Versioned notification
> transformation
> > [2] https://review.openstack.org/#/c/311194/ versionedobjects: add json
> schema generation
> > [3] https://review.openstack.org/#/c/311948/
> > [4]
> https://www.timeanddate.com/worldclock/fixedtime.html?iso=20160503T1
> 70000
> > [5] https://wiki.openstack.org/wiki/Meetings/NovaNotification
> >
> >
> >
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> 
> 
> --
> 
> Thanks,
> 
> Matt Riedemann
> 
> 
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