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On 8/17/2018 12:30 PM, Dan Smith wrote:
>> The subject of using placement in Cinder has come up, and since then I've had a
>> few conversations with people in and outside of that team. I really think until
>> placement is its own project outside of the nova team, there will be resistance
>> from some to adopt it.
> I know politics will be involved in this, but this is a really terrible
> reason to do a thing, IMHO. After the most recent meeting we had with
> the Cinder people on placement adoption, I'm about as convinced as ever
> that Cinder won't (and won't need to) _consume_ placement any time
> soon. I hope it will _report_ to placement so Nova can make better
> decisions, just like Neutron does now, but I think that's the extent
> we're likely to see if we're honest.
Dan,

I don't know of any reason we wouldn't want to report to placement. Just 
a matter of getting a person to implement it.

Also, from a consumption standpoint we really only have one or two 
people are are opposed at this point.  We have time scheduled at the PTG 
to discuss this further.  The discussions in Vancouver seemed to be 
tilting toward the fact that it might solve other technical issues we 
have been having from an Active/Active HA configuration standpoint.  
Just need to get the right people in the room to talk about it.

Jay
> What other projects are _likely_ to _consume_ placement even if they
> don't know they'd want to? What projects already want to use it but
> refuse to because it has Nova smeared all over it? We talked about this
> a lot in the early justification for placement, but the demand for that
> hasn't really materialized, IMHO; maybe it's just me.
>
>> This reluctance on having it part of Nova may be real or just perceived, but
>> with it within Nova it will likely be an uphill battle for some time convincing
>> other projects that it is a nicely separated common service that they can use.
> Splitting it out to another repository within the compute umbrella (what
> do we call it these days?) satisfies the _technical_ concern of not
> being able to use placement without installing the rest of the nova code
> and dependency tree. Artificially creating more "perceived" distance
> sounds really political to me, so let's be sure we're upfront about the
> reasoning for doing that if so :)
>
> --Dan
>
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