[openstack-dev] [nova] Backwards incompatible API changes

Joe Gordon joe.gordon0 at gmail.com
Thu Mar 20 21:33:38 UTC 2014


On Thu, Mar 20, 2014 at 3:51 AM, Thierry Carrez <thierry at openstack.org>wrote:

> Christopher Yeoh wrote:
> > The patch was merged in October (just after Icehouse opened) and so has
> > been used in clouds that do CD for quite a while. After some discussion
> > on IRC I think we'll end up having to leave this backwards incompatible
> > change in there - given there are most likely users who now rely on
> > both sets of behaviour there is no good way to get out of this
> > situation. I've added a note to the Icehouse release notes.
>
> I still think reverting before release is an option we should consider.
> My point is, yes we broke it back in October for people doing CD (and
> they might by now have gotten used to it), if we let this to release
> we'll then break it for everyone else.
>
> We put a high emphasis into guaranteeing backward compatibility between
> releases. I think there would be more damage done if we let this sail to
> release, compared to the damage of reverting CD followers to pre-October
> behavior...
>
>
The good news is this was an admin only API so it is not commonly used.

++ to revert with a focus on compatibility between releases.


> --
> Thierry Carrez (ttx)
>
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