[GRAAP-WG] Time Constraints Profile

[Constantinos (Costas) Kotsokalis]

Hi Dominic,

Recurring patterns for service usage is something that is needed in  
many cases, even if not allowed by current technology/service  
providers. In an example scenario where someone rents VMs to execute  
enterprise operations s/w on them, (s)he would certainly prefer to  
load-balance over a number of them available during working hours, and  
half or less that number outside working hours, to save money. I know  
this is not something that current cloud providers offer (to the  
extent I'm aware of, at least) but I believe it's a realistic need,  
and fits with fully dynamic scaling scenarios.

On the same time, I do agree that it increases complexity, especially  
if one is willing to include constructs such as "on the first Monday  
of every month" etc.

Just my E0.02.

Best regards,

Costas


On 7 Dec 2009, at 14:39, Dominic Battre wrote:

> Hello Costas,
>
> it would certainly be a possible extension.
>
> The question is do we want it? If we end up translating ical to XML  
> we come to a specification that is extremely powerful but very  
> difficult to implement.
>
> Our idea was to use the simplest language that would be useful.  
> Therefore, I would like to ask you and the others: Do you need  
> something like "every day, 9am-5pm"?
>
> Best regards,
>
> Dominic
>
> Constantinos (Costas) Kotsokalis wrote:
>> Hi Dominic,
>> Would you see fit to augment this also with some construct for  
>> defining periodic durations? E.g. to be able to say "every day,  
>> 9am-5pm", or things like that.
>> Best regards,
>> Costas
>> On 7 Dec 2009, at 13:43, Dominic Battre wrote:
>>> Dear GRAAP members,
>>>
>>> we have seen in various discussions that there seems to be a  
>>> frequent
>>> desire for a standardized term language to express when a service  
>>> shall
>>> be delivered.
>>>
>>> Examples are:
>>>
>>> - Making a hardware reservation of a cluster for interactive use
>>>
>>> - Co-allocation of resources of various types (hardware, network,
>>> licenses, ...)
>>>
>>> - Defining a deadline for the completion of a job
>>>
>>> We have had a discussion about this in Banff after which Oliver  
>>> and I
>>> have prepared a proposal for a Time Constraints Profile for
>>> WS-Agreement. This proposal has been uploaded here:
>>>
>>> https://forge.gridforum.org/sf/go/doc15832?nav=1
>>>
>>> We would be eager to hear your comments.
>>>
>>> - Is the proposal clear?
>>>
>>> - Is the proposal complete?
>>>
>>> - Does the proposal satisfy your needs?
>>>
>>> Best regards,
>>>
>>> Dominic
>>> -- 
>>> graap-wg mailing list
>>> graap-wg at ogf.org
>>> http://www.ogf.org/mailman/listinfo/graap-wg
>