[openstack-dev] [blazar]: proposal for a new lease type

Lisa lisa.zangrando at pd.infn.it
Fri Oct 31 12:14:18 UTC 2014


Hi Sylvain,

thanks for your answer.
Actually we haven't yet developed that because we'd like to be sure that 
our proposal is fine with BLAZAR.
We already implemented a pluggable advanced scheduler for Nova which 
addresses the issues we are experiencing with OpenStack in the Italian 
National Institute for Nuclear Physics. This scheduler named 
FairShareScheduler is able to make OpenStack more efficient and flexible 
in terms of resource usage. Of course we wish to integrate our work in 
OpenStack and so we tried several times to start a discussion and a 
possible interaction with the OpenStack developers, but it seems to be 
so difficult to do it.
The GANTT people suggested us to refer to BLAZAR because it may have 
more affinity with our scope. Is it so? Therefore, I would appreciate to 
know if you may be interested in our proposal.

Thanks for your attention.
Cheers,
Lisa


   Such component's name is FairShareScheduler and


On 31/10/2014 10:08, Sylvain Bauza wrote:
>
> Le 31/10/2014 09:46, Lisa a écrit :
>> Dear Sylvain and BLAZAR team,
>>
>> I'd like to receive your feedback on our blueprint 
>> (https://blueprints.launchpad.net/blazar/+spec/fair-share-lease) and 
>> start a discussion in Paris the next week at the OpenStack Summit. Do 
>> you have a time slot for a very short meeting on this?
>> Thanks in advance.
>> Cheers,
>> Lisa
>>
>
> Hi Lisa,
>
> At the moment, I'm quite occupied on Nova to split out the scheduler, 
> so I can't hardly dedicate time for Blazar. That said, I would 
> appreciate if you could propose some draft implementation attached to 
> the blueprint, so I could glance at it and see what you aim to deliver.
>
> Thanks,
> -Sylvain
>>
>> On 28/10/2014 12:07, Lisa wrote:
>>> Dear Sylvain,
>>>
>>> as you suggested me few weeks ago, I created the blueprint 
>>> (https://blueprints.launchpad.net/blazar/+spec/fair-share-lease) and 
>>> I'd like to start a discussion.
>>> I will be in Paris the next week at the OpenStack Summit, so it 
>>> would be nice to talk with you and the BLAZAR team about my proposal 
>>> in person.
>>> What do you think?
>>>
>>> thanks in advance,
>>> Cheers,
>>> Lisa
>>>
>>>
>>> On 18/09/2014 16:00, Sylvain Bauza wrote:
>>>>
>>>> Le 18/09/2014 15:27, Lisa a écrit :
>>>>> Hi all,
>>>>>
>>>>> my name is Lisa Zangrando and I work at the Italian National 
>>>>> Institute for Nuclear Physics (INFN). In particular I am leading a 
>>>>> team which is addressing the issue concerning the efficiency in 
>>>>> the resource usage in OpenStack.
>>>>> Currently OpenStack allows just a static partitioning model where 
>>>>> the resource allocation to the user teams (i.e. the projects) can 
>>>>> be done only by considering fixed quotas which cannot be exceeded 
>>>>> even if there are unused resources (but) assigned to different 
>>>>> projects.
>>>>> We studied the available BLAZAR's documentation and, in agreement 
>>>>> with Tim Bell (who is responsible the OpenStack cloud project at 
>>>>> CERN), we think this issue could be addressed within your framework.
>>>>> Please find attached a document that describes our use cases 
>>>>> (actually we think that many other environments have to deal with 
>>>>> the same problems) and how they could be managed in BLAZAR, by 
>>>>> defining a new lease type (i.e. fairShare lease) to be considered 
>>>>> as extension of the list of the already supported lease types.
>>>>> I would then be happy to discuss these ideas with you.
>>>>>
>>>>> Thanks in advance,
>>>>> Lisa
>>>>>
>>>>
>>>> Hi Lisa,
>>>>
>>>> Glad to see you're interested in Blazar.
>>>>
>>>> I tried to go thru your proposal, but could you please post the 
>>>> main concepts of what you plan to add into an etherpad and create a 
>>>> blueprint [1] mapped to it so we could discuss on the implementation ?
>>>> Of course, don't hesitate to ping me or the blazar community in 
>>>> #openstack-blazar if you need help with the process or the current 
>>>> Blazar design.
>>>>
>>>> Thanks,
>>>> -Sylvain
>>>>
>>>> [1] https://blueprints.launchpad.net/blazar/
>>>>
>>>>>
>>>>>
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>>>>
>>>>
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>>
>>
>>
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