[openstack-dev] [nova] Hard fail if you try to rename an AZ with instances in it?

Jay Pipes jaypipes at gmail.com
Wed Mar 28 22:35:54 UTC 2018

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 
>> this.
> 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)


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