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On 11/14/13 at 05:37pm, Jiang, Yunhong wrote:
>
>> -----Original Message-----
>> From: Andrew Laski [mailto:andrew.laski at rackspace.com]
>> Sent: Wednesday, November 13, 2013 3:22 PM
>> To: OpenStack Development Mailing List (not for usage questions)
>> Subject: Re: [openstack-dev] [nova][object] One question to the resource
>> tracker session
>>
>> On 11/13/13 at 11:12pm, Jiang, Yunhong wrote:
>> >Hi, Dan Smith and all,
>> >	I noticed followed statement in 'Icehouse tasks' in
>> https://etherpad.openstack.org/p/IcehouseNovaExtensibleSchedulerMetr
>> ics
>> >
>> >		convert resource tracker to objects
>> >		make resoruce tracker extensible
>> >		no db migrations ever again!!
>> >		extra specs to cover resources - use a name space
>> >
>> >	How is it planned to achieve the 'no db migrations ever again'? Even
>> with the object, we still need keep resource information in database. And
>> when new resource type added, we either add a new column to the table.
>> Or it means we merge all resource information into a single column as json
>> string and parse it in the resource tracker object?.
>>
>> You're right, it's not really achievable without moving to a schemaless
>> persistence model.  I'm fairly certain it was added to be humorous and
>> should not be considered an outcome of that session.
>
>Andrew, thanks for the explanation. Not sure anyone have interests on this task, otherwise I will take it.

There is a blueprint for part of this from Paul Murray, 
https://blueprints.launchpad.net/nova/+spec/make-resource-tracker-use-objects.  
So you could coordinate the work if you're interested.

>
>--jyh
>
>>
>> >
>> >Thanks
>> >--jyh
>> >
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