[gridcpr-wg] Use Cases for Grid Checkpoint and Recovery - Comments
Paul Stodghill
stodghil at cs.cornell.edu
Tue Oct 25 08:54:06 CDT 2005
I apologize, but I still don't understand what you are suggesting. Do
you think that there is a particular storage model that is implied by
the use-cases? Can you give an example of the sorts of changes that you
think should be made to the use-case doc?
Thanks for your comment.
guru prasad wrote:
> I think we should mention about the storage model atleast as a part of
> Checkpoint Management component of Figure 1. Though it is implied in
> the existing document, I think mentioning it will make it more clear.
>
> */Paul Stodghill <stodghil at cs.cornell.edu>/* wrote:
>
> I agree that we need to define it, but do we need to do so in the
> Use-Case document? Do you see any requirements that are missing or
> would be more clearly specified if we defined a storage model more
> clearly in the Use-Case document?
>
> Thanks for your comment.
>
> guru prasad wrote:
>
>> *2) **Checkpoint data management. *Once the checkpoint data has
>> been created, it needs to be managed. For example, *there needs
>> to functions for deleting checkpoint data that is no longer
>> needed. Also, this API should provide a **mechanism for querying
>> the meta-data that is associated with checkpoint data.*
>>
>>
>> I understand that Checkpoint has to be stored somewhere to be
>> able to delete or query the meta-data. It is said tacitly in the
>> above paragraph. But I feel we have to define the storage of
>> checkpoint also as this is a big question in its own. This will
>> have implications on Authentication, Authorization, Accounting,
>> and also maintain the Data Integrity.
>
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