Thanks Stuart. My comments are in-line <HK>. ---- Hiro Kishimoto Stuart Schaefer wrote:
Hi,
The slides in scenario #3 contain the detail that includes the provisioning steps. I do not see where in any of the sequence diagrams the CSG interacts with the ACS service. Candidate Sets are retrieved from the Execution Planning Services. The EPS works with ACS and should also be linked to Provisioning. If a service is already deployed and can be reused, I would presume that EPS would make this determination. The CDDLM system allows for this.
<HK> IFAIK, EPS does not (or should not) work with ACS directory. Instead, EPS should talk to information service. </HK>
Our presumption in CDDLM is that what is returned from the ACS is a parameterized template, that should be partially resolved during the Candidate Set Generation Phase and Resource Reservation Phase. But many parameters are not known until deployment time or runtime.
<HK> In OGSA-WG scenario #1, CSG talks to ACS. However I think CSG should talk to Information service, instead. </HK>
So, prior to invoking a service container (StartActivityFromJSDL() in the first diagram of scenario #1), the CDDLM service can be used to complete the template resolution, deploy the required systems and prepare the job for execution. Not sure if the sequence diagrams need this level of detail.
<HK> It should be. We should add directed link from JM to CDDLM service for deployment and configuration. </HK>
I think the only operations that are missing in the current CDDLM component model (container) are the commands to start and stop the actual job. We have taken care of all of the deploy, register, undeploy requirements as well as can support the "getState()" query from the Information Services. I would also add that we treat releasing resources and un-deploying configurations as different, environment specific operations.
We can contribute the sequence diagrams that were created as part of our work and those created by the ACS team to show the detailed steps of provisioning. Would anyone like to see those?
<HK> Why not? Please let us know it. </HK>
Thanks,
Stuart Schaefer