[nova] Removing the CachingScheduler

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[nova] Removing the CachingScheduler

Matt Riedemann-3
It's been deprecated since Pike, and the time has come to remove it [1].

mgagne has been the most vocal CachingScheduler operator I know and he
has tested out the "nova-manage placement heal_allocations" CLI, added
in Rocky, and said it will work for migrating his deployment from the
CachingScheduler to the FilterScheduler + Placement.

If you are using the CachingScheduler and have a problem with its
removal, now is the time to speak up or forever hold your peace.

[1] https://review.openstack.org/#/c/611723/1

--

Thanks,

Matt

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Re: [nova] Removing the CachingScheduler

Matt Riedemann-3
On 10/18/2018 5:07 PM, Matt Riedemann wrote:

> It's been deprecated since Pike, and the time has come to remove it [1].
>
> mgagne has been the most vocal CachingScheduler operator I know and he
> has tested out the "nova-manage placement heal_allocations" CLI, added
> in Rocky, and said it will work for migrating his deployment from the
> CachingScheduler to the FilterScheduler + Placement.
>
> If you are using the CachingScheduler and have a problem with its
> removal, now is the time to speak up or forever hold your peace.
>
> [1] https://review.openstack.org/#/c/611723/1

This is your last chance to speak up if you are using the
CachingScheduler and object to it being removed from nova in Stein. I
have removed the -W pin from the review since a series of feature work
is now stacked on top of it.

--

Thanks,

Matt

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