[nova] FFU : When should we remove reshape support for a feature ?
Eric Fried
openstack at fried.cc
Tue Mar 31 14:29:00 UTC 2020
It may be worth taking into account that we had a work item to write a
FFU hook for this, but it was never done.
http://lists.openstack.org/pipermail/openstack-dev/2018-October/136110.html
http://lists.openstack.org/pipermail/openstack-discuss/2019-March/004204.html
efried_stirs_pot_from_afar
On 3/31/20 7:35 AM, Sylvain Bauza wrote:
> Hola,
>
> In Stein, I provided a new feature [1] that was checking inventories
> from multiple children resource providers (RP). Since in Rocky, those
> inventories were only on the root RP, I had to provide both :
> #1 : an upgrade support for RPs that were not having a parent RP (that
> was the case of Stein compute nodes) [2]
> #2 : a reshape method in the libvirt driver for moving allocations
> from a root RP to children RPs [3]
>
> Now, we're in the Ussuri timeframe and as I was usually doing, I removed
> the upgrade support (in #1) since we're 100% sure that all compute nodes
> are either Train or Ussuri [4]
>
> This is cool, but now the reshape code I wrote for #2 no longer works
> (which is normal, since the 'non-Stein' support was removed) [5]
>
> Soooooo. Can I also then remove the reshape support ? That would mean
> that upgrading from Rocky to Train would work, but Rocky to Ussuri
> wouldn't. I'm personally OK with this, but I guess other people could
> have concerns with.
>
> Do we have any consensus about how longer we would support a reshape ? I
> think honestly that a 3-releases time window is enough but I can hear
> some disagreements about this strawman proposal. If so, please voice.
>
> -Sylvain
>
> [1] https://blueprints.launchpad.net/nova/+spec/vgpu-stein
> [2] https://review.opendev.org/#/c/636591/
> [3] https://review.opendev.org/#/c/599208/
> [4] https://review.opendev.org/#/c/715489/
> [5]
> https://541e2403478ac154d5eb-056bfb946e355d1a1a86dc411a70c5ec.ssl.cf2.rackcdn.com/715489/1/check/nova-tox-functional-py36/481510f/testr_results.html
>
More information about the openstack-discuss
mailing list