Open Stack

Thanks to everyone who contributed to this discussion.  With just a
teeny bit more bikeshedding on the exact syntax [1], we landed on:

group_policy={none|isolate}

I have proposed this delta to the granular spec [2].

-efried

[1]
http://p.anticdent.org/logs/openstack-placement?dated=2018-04-19%2013:48:39.213790#a1c
[2] https://review.openstack.org/#/c/562687/

On 04/19/2018 07:38 AM, Balázs Gibizer wrote:
> 
> 
> On Thu, Apr 19, 2018 at 2:27 PM, Eric Fried <openstack at fried.cc> wrote:
>> gibi-
>>
>>>  Can the proximity param specify relationship between the un-numbered
>>> and
>>>  the numbered groups as well or only between numbered groups?
>>>  Besides that I'm +1 about proxyimity={isolate|any}
>>
>> Remembering that the resources in the un-numbered group can be spread
>> around the tree and sharing providers...
>>
>> If applying "isolate" to the un-numbered group means that each resource
>> you specify therein must be satisfied by a different provider, then you
>> should have just put those resources into numbered groups.
>>
>> If "isolate" means that *none* of the numbered groups will land on *any*
>> of the providers satisfying the un-numbered group... that could be hard
>> to reason about, and I don't know if it's useful.
>>
>> So thus far I've been thinking about all of these semantics only in
>> terms of the numbered groups (although Jay's `can_split` was
>> specifically aimed at the un-numbered group).
> 
> Thanks for the explanation. Now it make sense to me to limit the
> proximity param to the numbered groups.
> 
>>
>> That being the case (is that a bikeshed on the horizon?) perhaps
>> `granular_policy={isolate|any}` is a more appropriate name than
>> `proximity`.
> 
> The policy term is more general than proximity therefore the
> granular_policy=any query fragment isn't descriptive enough any more.
> </bikeshed>
> 
> gibi
> 
>>
>> -efried
>>
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