[ops][nova] How to update from N to N+3 (and manage nova services that don't start because they find too old compute nodes...)

Dan Smith dms at danplanet.com
Mon Jan 10 17:38:38 UTC 2022

> We are trying to do the same to update from Train to Xena, but now
> there is a problem because nova services on the controller node refuse
> to start since they find too old compute nodes (this is indeed a new
> feature, properly documented in the release notes).  As a workaround
> we had to manually modify the "version" field of the compute nodes in
> the nova.services table.
> Is it ok, or is there a cleaner way to manage the issue ?

I think this is an unintended consequence of the new check. Can you file
a bug against nova and report the number here? We probably need to do
something here...



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