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
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)
Best,
-jay
Just FYI for anyone that cared about this thread, we agreed at the Stein
PTG to resolve the immediate bug [1] 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).
[1] https://bugs.launchpad.net/nova/+bug/1782539
--
Thanks,
Matt
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