- glue-wg - lists.ogf.org

XSD design choice related to LDAP
by david.meredith＠stfc.ac.uk 28 Feb '13

28 Feb '13

Dear WG, For the GLUE2 XML rendering we have a design choice that I understand was also relevant in the design of the LDAP schema. Some feedback would be most helpful, especially as I understand that user requirements triggered similar changes in the LDAP schema (i.e. from style A to B as described below?) Q. In the conceptual spec, when an entity inherits associations from a super class it usually redefines the inherited associations. For example, ComputingService redefines its inherited 'Endpoint.ID' to 'ComputingEndpoint.ID.' Similarly, StorageService redefines its inherited 'Endpoint.ID' to 'StorageEndpoint.ID'. Therefore, should we reflect these redefinitions in the XML element names (or not), e.g. option A or B below? I think the strength of A is that it is made clear that a ComputingService SHOULD (or is this MUST?) reference a ComputingEndpoint. The strength of B is that queries can be more standard across different implementations (akin to polymorphic queries, .e.g. the following XPath could be used to query for all endpoint IDs from all service implementations: "/Entities/*[@BaseType='Service']/Associations/EndpointID"). There are strengths with both approaches and the decision I think has to be driven by use-case experience, hence I put this to the LDAP folks. Thanks in advance, David Option A: Redefine the associations (e.g. ComputingEndpointID, ComputingShareID) ================================================================== <ComputingService BaseType="Service"> <ID>computingService1</ID> ... <Associations> <ComputingEndpointID>computingEndpoint1</ComputingEndpointID> <ComputingShareID>someShare</ComputingShareID> </Associations> </ComputingService> Option B: Don't redefine the associations (e.g. use inherited EndpointID, ShareID) =============================================================== <ComputingService BaseType="Service"> <ID>computingService1</ID> ... <Associations> <EndpointID>computingEndpoint1</EndpointID> <ShareID>someShare</ShareID> </Associations> </ComputingService> ========================== David Meredith Scientific Computing Dept Daresbury Laboratory Tel: +44 (0) 1925 603762 Fax: +44 (0) 1925 603100 (Site) Email: david.meredith(a)stfc.ac.uk Skype name: davidismeredith -- Scanned by iCritical.

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Meeting Reminder
by Shiraz Memon 28 Feb '13

28 Feb '13

Dear All, We will meet tomorrow to continue discussing the pending items from our last meeting. Date & Time: 26.03.2013, 16:00-~17:30 CET, 10:00-~11:30 US Eastern URL: Sign-in on ogf-glue-wg<https://webconf.vc.dfn.de/ogf-glue-wg/> as a Guest using your real name. Agenda Items: 1) Progress on XML rendering document and related issues: use of BaseType, union or annotation based open enumerations, public comment etc... 2) Updating the XML Schemas on GitHub source repository (implies snyc. with the latest rendering document) 3) Progress on unified enumerations 4) LDAP rendering update 5) OGF 37 preparation Best regards, Shiraz -- Ahmed Shiraz Memon Federated Systems and Data Jülich Supercomputing Centre (JSC) Phone: +49 2461 61 6899 Fax: +49 2461 61 6656 ------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------ Forschungszentrum Juelich GmbH 52425 Juelich Sitz der Gesellschaft: Juelich Eingetragen im Handelsregister des Amtsgerichts Dueren Nr. HR B 3498 Vorsitzender des Aufsichtsrats: MinDir Dr. Karl Eugen Huthmacher Geschaeftsfuehrung: Prof. Dr. Achim Bachem (Vorsitzender), Karsten Beneke (stellv. Vorsitzender), Prof. Dr.-Ing. Harald Bolt, Prof. Dr. Sebastian M. Schmidt ------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------

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updated doc and XSD
by david.meredith＠stfc.ac.uk 25 Feb '13

25 Feb '13

Dear all, For tomorrow's meeting please find attached an updated XSD, XML samples, and an updated doc for the proposed flat glue2 XSD rendering. There still a few minor TODOs to resolve (please search for 'TODO' in the glue2_2.xsd). These are also available from the following wiki folder: http://redmine.ogf.org/dmsf/glue-wg?folder_id=31 Thanks David ========================== David Meredith Scientific Computing Dept Daresbury Laboratory Tel: +44 (0) 1925 603762 Fax: +44 (0) 1925 603100 (Site) Email: david.meredith(a)stfc.ac.uk Skype name: davidismeredith -- Scanned by iCritical.

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[Enumerations] change of ServiceType_t org.nordugrid.information.egiis
by Florido Paganelli 19 Feb '13

19 Feb '13

Hi all, I'd like to change the ServiceType_t org.nordugrid.information.egiis agreed long time ago to org.nordugrid.egiis The motivation is that after thinking about it it is very bad to have some capability-related aspect in the namespace. Capabilities should identify the scope(s) of a Service, and they should not be part of the namespace IMHO. If no objections, I'll proceed with the changes. EGIIS is ARC's own information index, based on LDAP. At the moment is not GLUE2-enabled but we might like to publish its existence in some information system (like GOCDB) using GLUE2 naming. Cheers, -- ================================================== Florido Paganelli ARC Middleware Developer - EMI Project System Administrator Lund University Division of Particle Physics BOX118 221 00 Lund Office Tel: 046-2220272 Email: florido.paganelli(a)REMOVE_THIShep.lu.se ==================================================

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Re: [glue-wg] GLUE WG teleconference, Tuesday, February 12, 2013
by Shiraz Memon 14 Feb '13

14 Feb '13

Hi, The minutes from yesterday's meeting (12.02.2013) have been published on our wiki. http://redmine.ogf.org/projects/glue-wg/wiki/12_Feb_2013 Cheers, Shiraz On Tue, Feb 12, 2013 at 12:26 AM, JP Navarro <navarro(a)mcs.anl.gov<mailto:navarro@mcs.anl.gov>> wrote: Reminder that we have a GLUE WG meeting Tuesday February 12. Regards, JP On Jan 28, 2013, at 12:17 PM, JP Navarro <navarro(a)mcs.anl.gov<mailto:navarro@mcs.anl.gov>> wrote: > Greetings Glue WG, > > NO meeting tomorrow January 29, 2013. Coordinates and agenda for our next GLUE WG teleconference follow: > : Tuesday, February 12, 2013 > : 16:00-17:30 Central Europe, 10:00-11:30 AM US Eastern > > Teleconference and screen sharing: > : https://webconf.vc.dfn.de/ogf-glue-wg/ (Adobe Connect) > : Login as Guest using your real name > > Agenda: > 1) XML Rendering document updates review and discussion (David, 60 minutes) > https://redmine.ogf.org/dmsf_files/12988?download= > 2) Other updates and planning our next teleconference (JP/Shiraz, 10 minutes) > > Please use the attached *.ics file to reserve this by-weekly time on your calendar. We will meet as needed and not necessarily every two weeks. > > Regards, > > Shiraz Memon > JP Navarro > > <GLUE WG teleconference.ics> _______________________________________________ glue-wg mailing list glue-wg(a)ogf.org<mailto:glue-wg@ogf.org> https://www.ogf.org/mailman/listinfo/glue-wg -- Ahmed Shiraz Memon Federated Systems and Data Jülich Supercomputing Centre (JSC) Phone: +49 2461 61 6899 Fax: +49 2461 61 6656 ------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------ Forschungszentrum Juelich GmbH 52425 Juelich Sitz der Gesellschaft: Juelich Eingetragen im Handelsregister des Amtsgerichts Dueren Nr. HR B 3498 Vorsitzender des Aufsichtsrats: MinDir Dr. Karl Eugen Huthmacher Geschaeftsfuehrung: Prof. Dr. Achim Bachem (Vorsitzender), Karsten Beneke (stellv. Vorsitzender), Prof. Dr.-Ing. Harald Bolt, Prof. Dr. Sebastian M. Schmidt ------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------

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GLUE WG teleconference, Tuesday, February 12, 2013
by JP Navarro 12 Feb '13

12 Feb '13

Greetings Glue WG, NO meeting tomorrow January 29, 2013. Coordinates and agenda for our next GLUE WG teleconference follow: : Tuesday, February 12, 2013 : 16:00-17:30 Central Europe, 10:00-11:30 AM US Eastern Teleconference and screen sharing: : https://webconf.vc.dfn.de/ogf-glue-wg/ (Adobe Connect) : Login as Guest using your real name Agenda: 1) XML Rendering document updates review and discussion (David, 60 minutes) https://redmine.ogf.org/dmsf_files/12988?download= 2) Other updates and planning our next teleconference (JP/Shiraz, 10 minutes) Please use the attached *.ics file to reserve this by-weekly time on your calendar. We will meet as needed and not necessarily every two weeks. Regards, Shiraz Memon JP Navarro

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DN format anomaly
by stephen.burke＠stfc.ac.uk 11 Feb '13

11 Feb '13

Hi all, Paul Millar raised an issue about DNs. The schema has two attributes, IssuerCA and TrustedCA, with type DN_t, defined as: "Distinguished Name as defined by RFC 4514 (http://www.rfc-editor.org/rfc/rfc4514.txt) X.509 uses a X.500 namespace, represented as several Relative Domain-Names (RDNs) concatenated by forward-slashes. The final RDN is usually a single common name (CN), although multiple CNs are allowed." What I expect is the usual globus/openssl-style format like /C=UK/O=eScienceCA/OU=Authority/CN=UK e-Science CA 2B and that is indeed what's being published in EGI. The text of the definition above agrees with that. However, RFC 4514 is in fact the definition of LDAP DNs, which of course look like GLUE2DomainID=UKI-SOUTHGRID-BHAM-HEP,GLUE2GroupID=grid,o=glue i.e. comma-delimited and in the reverse order. The reference to RFC 4514 looks like a mistake to me - any thoughts? Stephen -- Scanned by iCritical.

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Scheduling a regular GLUE WG teleconference in 2013
by JP Navarro 22 Jan '13

22 Jan '13

Greetings GLUE WG, Happy New 2013! We need to continue making progress in the various areas the GLUE WG has been working on over recent months. Rather than schedule teleconferences individual Shiraz and I would like to have a regularly scheduled meeting that we can use as needed. So that we can schedule it when most are available, please mark your general available in the following Doodle poll by COB Friday January 25: http://www.doodle.com/hhqm3kcpfe9n8yig Our next meeting would be at the selected time next week, and repeat every 2-4 weeks or as needed after that. Regards, JP Navarro ------------------------------------------------------------------------------ John-Paul Navarro (630) 252-1233 navarro(a)mcs.anl.gov http://www.mcs.anl.gov/~navarro Mathematics & Computer Science Division Argonne National Laboratory GPG: 4EA9 C86B C0F0 113D 6306 98B7 3649 D6CB EFA8 4133 http://orcid.org/0000-0003-2866-6798

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Hybrid-hyerarchical XML schema request
by Florido Paganelli 22 Jan '13

22 Jan '13

Hi all, I'd like to remind you that the only official version that we have of an XML schema, the hybrid/hyerarchical, is going to be referred as some community-based maintained schema, and there will be a translator to change that into the flat version that David is writing. Asd part of the community using it, I would ask to put back the <Services></Services> Container for Service. I think this is actually a rollback to some previous versions of the XML schema. At present the only software actually using such GLUE2 schema that I know are: - ARC - EMI Execution Service So it should not be a problem to have that back. It works nicely when aggegating services from different machines and in documents that have a mixture of GLUE2 XML and other XML meta information from other schema. What's the opinion of the group about this? Regards, -- Florido Paganelli Lund University - Particle Physics ARC Middleware EMI Project

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new SE type requests
by david.meredith＠stfc.ac.uk 18 Jan '13

18 Jan '13

Dear WG, GOCDB has received the following service type requests. Now, for the sake of compatibility, it would be best if we can on agree these values with the Glue2 enum list: * 'xrootd' * 'xrootd.redirector' - A component of the XRootD suite. * 'ch.cern.cvmfs.stratum.0' * 'ch.cern.cvmfs.stratum.1' - http://cernvm.cern.ch/portal/filesystem A couple of questions: 1) cvmfs types - are these acceptable? 2) WRT the xrootd I understand that "xroot" was decided upon in Glue2 rather than "xrootd" since xroot is the protocol name and xrootd is the server. However, the requestors of the xrootd service types strongly prefer 'xrootd' since they need to determine the exact implementation which matters to them. Now, I realise that the 'EndpointImplementationName' is meant for that purpose, but GOCDB doesn't support glue2 (yet) and to be pragmatic, I expect many dependent systems within EGI will still require a single SE type list for a long time to come yet. Therefore, what are your recommendations? Would it be possible to un-deprecate the 'xrootd' SE type in the GLUE2 list or should we consider this only as a GOCDB SE type? Thanks in advance, David https://github.com/OGF-GLUE/Enumerations/blob/master/ServiceType_t.csv ========================== David Meredith Scientific Computing Dept Daresbury Laboratory Tel: +44 (0) 1925 603762 Fax: +44 (0) 1925 603100 (Site) Email: david.meredith(a)stfc.ac.uk Skype name: davidismeredith -- Scanned by iCritical.

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