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minutes from today telecon
by Sergio Andreozzi 17 Jan '08

17 Jan '08

Dear all, the minutes of the today telecon are available here: http://forge.ogf.org/sf/wiki/do/viewPage/projects.glue-wg/wiki/PhoneMeeting… by the end of this week I will send around the new GLUE Spec + UML; we'll also align the XSD mapping as agreed, the next telecon at 1 PM GMT for continuing the discussion on AustralianGrid requirements is scheduled for Jan 22 http://forge.ogf.org/sf/wiki/do/viewPage/projects.glue-wg/wiki/PhoneMeeting… the next telecon is scheduled telecon for this Friday (18/1), 3 PM GMT http://forge.ogf.org/sf/wiki/do/viewPage/projects.glue-wg/wiki/PhoneMeeting… the agenda is still open. We could discuss the following open issues if people have updates on them: http://forge.ogf.org/sf/go/artf6080 (+ JP to ask Teragrid people about policy issues) http://forge.ogf.org/sf/go/artf6104 please, let me know about your wish. Cheers, Sergio -- Sergio Andreozzi INFN-CNAF, Tel: +39 051 609 2860 Viale Berti Pichat, 6/2 Fax: +39 051 609 2746 40126 Bologna (Italy) Web: http://www.cnaf.infn.it/~andreozzi

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GLUE Telecon reminder - tomorrow 15/1 - 1 PM GMT
by Sergio Andreozzi 16 Jan '08

16 Jan '08

Dear all, this is a gentle reminder for our tomorrow telecon: http://forge.ogf.org/sf/wiki/do/viewPage/projects.glue-wg/wiki/PhoneMeeting… Cheers, Sergio -- Sergio Andreozzi INFN-CNAF, Tel: +39 051 609 2860 Viale Berti Pichat, 6/2 Fax: +39 051 609 2746 40126 Bologna (Italy) Web: http://www.cnaf.infn.it/~andreozzi

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GLUE 2.0 draft spec comments
by Gerson Galang 16 Jan '08

16 Jan '08

Hi Sergio, I was looking at the xsd and noticed a few issues.. 1. The Service_t has declared Endpoint_Share, Service_Service and Share_Resource elements which do not get reflected in the ComputingService_t element. Shouldn't there be an ComputingEndpoint_ComputingShare, ComputingService_ComputingService, and ComputingShare_ComputingResource also in the ComputingService_t element? 2. I also found a few elements not being used anywhere in the xsd. One of them is the Policy_t which should probably be extended by the *Policy_t elements. 3. Why are the ExecutionEnviornment and ApplicationEnvironment elements declared in both the ComputingService_t and ComputingResource_t? 4. Rerunnable element has been declared twice in Job_t element 5. Shouldn't there be mapping elements for ExecutionEnvironment_ComputingShare and ApplicationEnviornment_ComputingShare. This was the issue we had with GLUE 1.2 and 1.3, there was no way to find out which queue the users should use to get their jobs running on a particular subcluster that has the compute resource requirements they are asking for and/or has the application they need to use. 6. There's no way of knowing which VOs (AdminDomain) are allowed to use the ComputingShares in the current xsd There might be others that I've missed but no big issue as schema is still in draft stage. We can talk about these issues tonight. Cheers, Gerson

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GLUE Sessions at OGF 22
by Sergio Andreozzi 11 Jan '08

11 Jan '08

Dear all, today is the deadline to request sessions for OGF 22. I've added requests for three sessions as described here: http://forge.ogf.org/sf/wiki/do/viewPage/projects.glue-wg/wiki/Participatio… we can refine the agenda of these sessions in order to allocate space for discussing implementations as well, but I would not go for more than three sessions. Moreover, at this OGF I do not plan to request a joint session on information modeling among different groups as did in the last two OGF. If you have any proposed changes, please let me know. Cheers, Sergio -- Sergio Andreozzi INFN-CNAF, Tel: +39 051 609 2860 Viale Berti Pichat, 6/2 Fax: +39 051 609 2746 40126 Bologna (Italy) Web: http://www.cnaf.infn.it/~andreozzi

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minutes from 19 Dec telecon
by Sergio Andreozzi 06 Jan '08

06 Jan '08

Dear all, I hope that all of you spent a serene XMas and New Year's Eve. Here are the notes from the last 2007 telecon: http://forge.ogf.org/sf/wiki/do/viewPage/projects.glue-wg/wiki/PhoneMeeting… At this page you can find the tentative schedule for the January telecons: http://forge.ogf.org/sf/wiki/do/viewPage/projects.glue-wg/wiki/PhoneMeetings I would like to ask Gerson to pick up 3 of them to be scheduled at late morning EU time so he can attend and discuss the requirements from the Australian Grid. The remaining calls will be scheduled at the usual 3 PM GMT. Cheers, Sergio -- Sergio Andreozzi INFN-CNAF, Tel: +39 051 609 2860 Viale Berti Pichat, 6/2 Fax: +39 051 609 2746 40126 Bologna (Italy) Web: http://www.cnaf.infn.it/~andreozzi

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RFD, WSRF-RP and GLUE: food for thought [WAS: a new software release: Semantic MDS]
by Paul Millar 03 Jan '08

03 Jan '08

Happy New Year, everyone! I received the email below from the semantic grid list. I haven't explored the S-MDS package beyond reading the documentation on their webpage, but it looks both interesting and relevant to GLUE. At the abstract level, this package provides a "semantically" queryable access (i.e., a SPARQL end-point) to some instance data. The instance data is maintained by querying WSRF Resource Properties (RPs). An overview is available here: http://pages.dbgrid.org/s-mds/dist/doc/background/architecture.htm [in the diagram, they show RPs as local to the target system. I guess this is a deployment decision, so might not be a requirement] If this package were extended to expose GLUE data, then one could also use the same SPARQL end-point to query GLUE metadata. An alternative approach would be to define an WSRF-RP binding for GLUE. I've skimmed through the WSRF-RP spec (v1.2 draft-4) and, given a suitable GLUE/XML binding, this doesn't look too hard: a simple encapsulation through a suitable GLUE XML-namespace should work. The S-MDS package has an "RP/ontology mapping algorithm" that (I believe) automatically converts the WSRF-RP into some OWL ontology description of the WSRF-RP. Provided this mapping algorithm works for GLUE/WSRF-RP (i.e., GLUE/XML encapsulated within WSRF-RP SOAP), this should "just work" :-) This would be an interesting extension of the current work on an XML binding. Apart from the application within MDS, we might get an RDF/OWL binding for free! Cheers, Paul. ---------- Forwarded Message ---------- Subject: [SEM-GRD] A new software release: Semantic MDS TP1 Date: Sunday 23 December 2007 From: "Said Mirza" <mirza(a)ni.aist.go.jp> To: gt-user(a)globus.org, sem-grd(a)gridforum.org Hi, We are pleased to announce the release of our new software Semantic MDS (S-MDS) TP1. S-MDS is a Semantic Metadata Discovery and Monitoring system implemented on the top of the Globus Toolkit 4 (GT4). It is an information system that uses semantic web technologies to semantically describe grid resources (services) so that they can be more efficiently and effectively discovered and monitored. The software does not require any change to the (targeted/monitored) grid resources so that it can "peacefully" work with your grid resources. S-MDS harvests many semantic web technologies but it does not require users to be familiar with the technologies. It provides the following management and query tools for supporting the users. * S-MDS wizard and tools for easy creating, enriching and registering the semantic metadata. * A GUI-based query client for easy constructing a (SPARQL) query. This tool also includes a monitoring client that periodically pulls data from the repository and presents the data in a graphical view. For more information and download please visit: http://wiki.dbgrid.org/index.php?smds Best Regards, Said Mirza On behalf of the Data Grid Team, Grid Technology Research Center, AIST - Japan -- sem-grd mailing list sem-grd(a)ogf.org http://www.ogf.org/mailman/listinfo/sem-grd -------------------------------------------------------

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telecon - tomorrow 19 Dec 2007 - 3 PM UK
by Sergio Andreozzi 18 Dec '07

18 Dec '07

Dear all, this is to confirm the last telecon for this year: http://forge.ogf.org/sf/wiki/do/viewPage/projects.glue-wg/wiki/PhoneMeeting… looking to talk you tomorrow. Cheers, Sergio -- Sergio Andreozzi INFN-CNAF, Tel: +39 051 609 2860 Viale Berti Pichat, 6/2 Fax: +39 051 609 2746 40126 Bologna (Italy) Web: http://www.cnaf.infn.it/~andreozzi

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choosing XML Document structure for GLUE 2.0 rendering
by Sergio Andreozzi 17 Dec '07

17 Dec '07

Dear all, I've set up a poll to know your preference for the GLUE 2.0 structure as XML document. Please, express your opinion by December 12: http://www.doodle.ch/participation.html?pollId=sg4v8qvy3h4h6d9t Cheers, Sergio -- Sergio Andreozzi INFN-CNAF, Tel: +39 051 609 2860 Viale Berti Pichat, 6/2 Fax: +39 051 609 2746 40126 Bologna (Italy) Web: http://www.cnaf.infn.it/~andreozzi

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Model Questions
by Donal K. Fellows 14 Dec '07

14 Dec '07

Hi everyone I've been looking through the current draft and I've got a few questions... :-) 1) Should the Policy class have Scheme and Rule attributes? They seem to be common across a number of subclasses. 2) What's the relationship between Mapping Policy and Share Policy? 3) Should the Downtime class relate to a Service instead of an Endpoint? 4) Are Shares inherent features of all Services in the GLUE model, or can a particular subclass of Service not use them? (Might they only be features of Computing Services? Might they only be features of particular important subclasses of Computing Services, i.e. those with queues?) 5) Why is Share State separate from Share? Does it relate to Service state? 6) In the Information Model level, I'd be strongly tempted to just say that integers are integers and not give the width of the integers. (That's more appropriate for the data model.) 7) There are unit mistakes in Computing Share Policy. (I also strongly recommend only using SI base units (plus bytes) for units.) 8) What is the relationship of the Execution and Application Environment classes to the core GLUE model? 9) I've had systems in the past where the job acquired a Usage Record as a property when it completed. That worked quite well. 10) You probably should talk to the OGSA-DMI-WG folks about the Storage Endpoint class's attributes. 11) There needs to be a relationship between Compute and Storage sides (essential questions are probably "where can I get the output of the Job from?" "where do I ship my input data to in order to run on that system?" and "where can I run my job so that I don't need to ship the data about unnecessarily?"). That's a very important relationship! :-) 12) Do you plan to construct a dictionary of Application names? If not, it's going to make finding Application Environment instances tricky in practice. This will also need to tie in with JSDL, HPC Profile and ACS groups. Maybe also OGSA Naming, though I believe they name something else. If you do, it probably should be in a separate document. (I'd suggest some sort of structured name so that you don't need to name everything!) It's also a shame that CIM hasn't done anything in this area that I can see... Donal.

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GridAustralia (previously know as the APACGrid) requirements for GLUE 2.0
by Gerson Galang 14 Dec '07

14 Dec '07

Hi Sergio, I've been pulled away to work on another project so I haven't been able to actively look at the specifications you guys have been writing. Anyway, I've got some free time now so I was able to look at what you guys have done with the schema. So my first question is, how you guys are planning to address the requirements (http://forge.ogf.org/sf/wiki/do/viewPage/projects.glue-wg/wiki/GridAustrali… ) we've given you in May 2007? I've looked at our requirements and only four of them (stories 1, 2, 3, and 6 in the link above) have been addressed by GLUE 2.0 spec (draft). All of these four requirements have already been addressed by GLUE 1.3. So from what I see, there hasn't really been anything new added to GLUE 2.0 in terms of the requirements we've asked you to add in the new schema. Isn't the GLUE 2.0 spec already going for public comments after the next OGF? How are you planning to satisfy our requirements? GridAustralia will be very happy to contribute some of its resources just so the current draft can modified to satisfy our schema. I don't think our proposed schema is only GridAustralia specific so what we add into the specification shouldn't be an issue with anyone on this list. I also just want to comment on story 6 of our requirements. We know that you've satisfied that requirement by adding the ModuleName attribute to the ApplicationEnvironment entity but some Grids (e.g. TeraGrid) don't use modules and JP Navarro has suggested a more generic approach (and a better way of representing this type of information) and that's by using HandleType and HandleKey attributes. See below.. <ApplicationEnvironment> <ID>123</ID> <Name>apache-ant</Name> <Version>1.6.5</Version> <HandleType>softenv</HandleType>  <HandleKey>+apache-ant-1.6.5</HandleKey>  </ApplicationEnvironment> We're happy that you've got ModuleName in there but since this is a schema that will be used by a number of grid middleware/apps around the world, we just want to do it properly and avoid tying this version of the spec to a particular environment loading package implementation like "modules". It may be that you might not want to implement stories 9, 10, and 11 because you might think that it's just too hard to implement or you just think that there won't be any users/applications going to query for that information. If so, it would be good to get some feedback on the issues with our requirements. Story 13 is not related to software application so we want to know how you are planning to address that in GLUE 2.0? We also would like to hear your comments about the things we've listed under the "Glue 1.3 issues/comments" section of the GridAustraliaRequirements. I know those are not only applicable to GLUE 1.3 because I don't see the current draft of GLUE 2.0 addressing those issues yet. Look forward to hearing from you. Regards, Gerson On Dec 2, 2007 1:22 AM, Sergio Andreozzi <sergio.andreozzi(a)cnaf.infn.it> wrote: > Dear all, > > at the following page you can find the minutes of yesterday call: > http://forge.ogf.org/sf/wiki/do/viewPage/projects.glue-wg/wiki/PhoneMeeting… > > > the new GLUE Spec draft (no.18) is available here: > http://forge.ogf.org/sf/docman/do/viewDocument/projects.glue-wg/docman.root… > > > the new XML Schema rendering, XML example and updated mapping rules can > be reached from this page: > > http://forge.ogf.org/sf/wiki/do/viewPage/projects.glue-wg/wiki/GLUE2XMLSche… > > during the next week I will be in USA (West Coast) because I'm attending > a conference ( http://www.mandevcon.com/) where I will be presenting the > work that we (INFN) are doing in the framework of OMII-Europe to > implement GLUE 2.0 based on WBEM technologies. > > For next calls, I talked to Balazs and seems that the first intersection > is in the week 17-21/12. > I would propose 18 and 20 Dec as the last calls for this year: > http://forge.ogf.org/sf/wiki/do/viewPage/projects.glue-wg/wiki/PhoneMeetings > > > Please let me know if you can make it. > > Meanwhile, we can make progress on the mailing lists. I will send > specific e-mails to ask for feedback contributions on open tasks: > > http://forge.ogf.org/sf/tracker/do/listArtifacts/projects.glue-wg/tracker.g… > > > Cheers, Sergio > > -- > Sergio Andreozzi > INFN-CNAF, Tel: +39 051 609 2860 > Viale Berti Pichat, 6/2 Fax: +39 051 609 2746 > 40126 Bologna (Italy) Web: http://www.cnaf.infn.it/~andreozzi<http://www.cnaf.infn.it/%7Eandreozzi> > > _______________________________________________ > glue-wg mailing list > glue-wg(a)ogf.org > http://www.ogf.org/mailman/listinfo/glue-wg >

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