[openstack-dev] [nova] Hard fail if you try to rename an AZ with instances in it?
mriedemos at gmail.com
Fri Sep 14 17:24:03 UTC 2018
On 3/28/2018 4:35 PM, Jay Pipes wrote:
> On 03/28/2018 03:35 PM, Matt Riedemann wrote:
>> On 3/27/2018 10:37 AM, Jay Pipes wrote:
>>> If we want to actually fix the issue once and for all, we need to
>>> make availability zones a real thing that has a permanent identifier
>>> (UUID) and store that permanent identifier in the instance (not the
>>> instance metadata).
>>> Or we can continue to paper over major architectural weaknesses like
>> Stepping back a second from the rest of this thread, what if we do the
>> hard fail bug fix thing, which could be backported to stable branches,
>> and then we have the option of completely re-doing this with aggregate
>> UUIDs as the key rather than the aggregate name? Because I think the
>> former could get done in Rocky, but the latter probably not.
> I'm fine with that (and was fine with it before, just stating that
> solving the problem long-term requires different thinking)
Just FYI for anyone that cared about this thread, we agreed at the Stein
PTG to resolve the immediate bug  by blocking AZ renames while the AZ
has instances in it. There won't be a microversion for that change and
we'll be able to backport it (with a release note I suppose).
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