[ogsa-wg] OGSA discovery study template
Djaoui, A (Abdeslem)
A.Djaoui at rl.ac.uk
Wed Sep 28 11:46:39 CDT 2005
I have put together a draft template for a study of existing Discovery systems and design of future OGSA discovery.
Comments on the template as well as contributions from existing grid projects are most welcome.
Abdeslem
PS:
David: The Unicore text below covers items 1,2,3 and 9 from the template. I can cut and paste it if you want
but a bit more information on the interfaces and the data model would be nice.
-----Original Message-----
From: David Snelling [mailto:David.Snelling at uk.fujitsu.com]
Sent: Wednesday, September 28, 2005 2:33 PM
To: Djaoui, A (Abdeslem)
Subject: Re: [ogsa-wg] OGSA WSRF BP 1.0 Editor submission final call
Abdeslem,
On 28 Sep 2005, at 12:13, Djaoui, A ((Abdeslem)) wrote:
> Thanks for that Dave, it might be useful if we put a template together
> and ask different projects to fill it in.
> I will circulate a draft ASAP.
Good idea. If you can pick apart the Unicore answer for the sections,
it might give you a head start. If you think of sections I haven't
implicitly filled in already, let me know. I'll fill them in quickly
and you can have a sample as well as a template.
>
> Abdeslem
>
>
> -----Original Message-----
> From: David Snelling [mailto:David.Snelling at uk.fujitsu.com]
> Sent: Sat 9/24/2005 12:33 PM
> To: Hiro Kishimoto
> Cc: Djaoui, A (Abdeslem); Andreas Savva; ogsa-wg at ggf.org
> Subject: Re: [ogsa-wg] OGSA WSRF BP 1.0 Editor submission final call
>
> Abdeslem,
>
> To get you started:
>
> Registry services in Production Unicore are integrated (the Grid fabric
> populates it rather than allowing registration). The registry of
> available resources, software, system load, and other services (such as
> brokers) are may available to clients on request. Most of this
> information is static and clients may choose to cache it. Most clients
> today cache it for the time they run and then refresh it when the start
> up. The Intel client allows manual refresh. Each registry is maintained
> by the sites, i.e. there is no central regisrty. However, the
> University of Manchester's Resource Broker I believe caches information
> from several sites to facilitate "Candidate Set Generation". Access to
> all this information is subject to authorization, e.g. non-public
> registry.
>
> There has been some concern that the registry is an "all or nothing"
> implementation without a search facility causes an excessive load on
> server to client communication, but we have never had feedback from
> this issue.
>
> There is a separate mechanism for registering jobs. By default, users
> see their own root jobs at the site where they were consigned. Sub-jobs
> at each site are only visible optionally - not supported by most
> clients today. There is a admin role that allows administrators to see
> jobs at a remote site.
>
> In the prototype Unicore/GS, built on WSRF, the registry is still in
> the planning stages. It is expected that all the above information,
> which is already available as Resource Properties of the "Atomic
> Services" (the Unicore dual to GRAM, RFT, etc.) will be available also
> through a Service Group based registry in the near term.
>
> We have not studied the possibility of a UDDI registry since the OGSI
> days. There may be fresh possibilities there.
>
> On 24 Sep 2005, at 2:35, Hiro Kishimoto wrote:
>
>> Hi Abdeslem,
>>
>> As a first step of defining Discovery and Registry in the Grid, can
>> you champion a study of existing grip projects; EGEE, OMII, Globus,
>> UNICORE, TeraGrid, etc.
>>
>> Thanks,
>> ----
>> Hiro Kishimoto
>>
>> Andreas Savva wrote:
>>> In OGSA, yes. But the WSRF BP is not the place to make such
>>> statements.
>>> The Roadmap is, so if there is a specific plan it should be added
>>> there.
>>> Djaoui, A (Abdeslem) wrote:
>>>> Well, my point is that Discovery is fundamental in OGSA and MUST be
>>>> (not MAY be) addressed by OGSA, especially now that UDDI is excluded
>>>> from the base profile. But I agree that the plans and decisions are
>>>> still to be discussed.
>>>>
>>>> Abdeslem
>>>> /////////////
>>>>
>>>> -----Original Message-----
>>>> From: Andreas Savva [mailto:andreas.savva at jp.fujitsu.com]
>>>> Sent: Thursday, September 22, 2005 2:10 PM
>>>> To: Djaoui, A (Abdeslem)
>>>> Cc: Hiro Kishimoto; ogsa-wg at ggf.org
>>>> Subject: Re: [ogsa-wg] OGSA WSRF BP 1.0 Editor submission final call
>>>>
>>>>
>>>> I disagree. There are no firm decisions or plans so 'may' is more
>>>> appropriate at the moment.
>>>>
>>>> Andreas
>>>>
>>>> Djaoui, A (Abdeslem) wrote:
>>>>
>>>>
>>>>
>>>>> Hi
>>>>> Following from previous email... I see I am too late and a decision
>>>>> has
>>>>> already been made. So I suggest modifying the sentence
>>>>> "There may be
>>>>> additional profiles in the future that will include discovery
>>>>> functions"
>>>>>
>>>>> to:
>>>>>
>>>>> "Discovery will be covered by future specifications and profiles."
>>>>>
>>>>> Abdeslem
>>>>> //////////////
>>>>>
>>>>> -----Original Message-----
>>>>> From: owner-ogsa-wg at ggf.org [mailto:owner-ogsa-wg at ggf.org] On
>>>>> Behalf Of
>>>>> Hiro Kishimoto
>>>>> Sent: 22 September 2005 09:26
>>>>> To: ogsa-wg at ggf.org
>>>>> Subject: [ogsa-wg] OGSA WSRF BP 1.0 Editor submission final call
>>>>>
>>>>> Hi all,
>>>>>
>>>>> At the today's OGSA-WG call, we discussed BP 1.0 once more and
>>>>> agreed
>>>>> the following two;
>>>>>
>>>>> (1) Exclude UDDI section of WS-I BP 1.1 from OGSA WSRF BP
>>>>> Now, section 1.2 (page 4 line 114-116) says;
>>>>>
>>>>>
>>>>>
>>>>>> This Profile extends the WS-I Basic Profile 1.1 [WS-I BP 1.1]. All
>>>>>>
>>>>>
>>>>> requirements except for section 5 "Service Publication and
>>>>> Discovery"
>>>>> specified in WS-I BP 1.1 pertain to this Profile. There may be
>>>>> additional profiles in the future that will include discovery
>>>>> functions.
>>>>>
>>>>> Revised really final draft (v043) is on the GridForge.
>>>>> https://forge.gridforum.org/projects/ogsa-wg/document/draft-ggf-
>>>>> ogsa-wsr
>>>>> f-basic-profile/en/39
>>>>>
>>>>> (2) Submit OGSA WSRF BP 1.0 (v043) to GGF Editor this Friday
>>>>> Given that OGSA Basic Security Profiles need more time to complete
>>>>> (maybe after GGF15), we agreed to submit OGSA WSRF BP 1.0 alone to
>>>>> GGF
>>>>> Editor this Friday. If you have any farther comments on this draft,
>>>>> please let us know before EoB Friday (Sept. 23).
>>>>>
>>>>> Thanks,
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>
>>
> --
>
> Take care:
>
> Dr. David Snelling < David . Snelling . UK . Fujitsu . com >
> Fujitsu Laboratories of Europe
> Hayes Park Central
> Hayes End Road
> Hayes, Middlesex UB4 8FE
>
> +44-208-606-4649 (Office)
> +44-208-606-4539 (Fax)
> +44-7768-807526 (Mobile)
>
>
>
--
Take care:
Dr. David Snelling < David . Snelling . UK . Fujitsu . com >
Fujitsu Laboratories of Europe
Hayes Park Central
Hayes End Road
Hayes, Middlesex UB4 8FE
+44-208-606-4649 (Office)
+44-208-606-4539 (Fax)
+44-7768-807526 (Mobile)
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