OGSA-DMI Telcon - 25/07/08 ========================== Attendees: Mario Antonioletti, EPCC Michel Drescher, Fujitsu Steven Newhouse, Microsoft Allen Luniewski, IBM Agenda: - Implementations and Interop progress - OGF24 Planning - Rendering documents +--- - Implementations and Interop progress Michel and Steven have been working on interop. Currently can both get factory attributes from each other's implementations, can also create DTIs from each other's implementations. Michel can create a DTI on Steven's implementation and it works. Steven has not yet tried it out on Michel's implementation. Time zone difference has been a bit of a burden. Have had some SOAP 1.1 issues - .Net has two sets of settings. Steven's clients were originally speaking SOAP 1.2 while Michel's server understood SOAP 1.1. Steven can now use 1.1 on his client. Main obstacles overcome: security infrastructure sorted, protocols are communicating with each other - now massaging the XML messages is being done which is a lesser but not trivial problem. Semantics are right but the XML processing works slightly differently across the implementations - question as to how low we want to drill into this. The basic interop is done for the factory and instance services. To what level do we want a continue developing test case/scenarios to test the specifications? Can do it at the high level and then leave the rest to compliance testing? Are errors dealt with correctly? Michel set up a wiki page with test cases that we want to try out: http://forge.gridforum.org/sf/wiki/do/viewPage/projects.ogsa-dmi-wg/wiki/Hom... Need to cover the Data EPRs, check that we can set up a transfer and successfully transfer data. Also, do some faults testing. Set up the basic mechanisms to test inter operation but we do not have to do this exhaustively. Currently doing the plain web services rendering interop. Steven will not go on to do a WSRF rendering. We need to have participants from the WSRF camp - possibly Jeulich Unicore or Globus but carrying out this exercise has been really useful. Validating the core stuff - the WSRF rendering is really a wrapper round that core bit. Thus far we are on track. Have six months to do all of this. Would be nice to have a third person involved in order to validate the spec. By OGF would expect that we will have Steven and Michel's stuff interop'ing fully and should have the basic stuff that needs to bed tested on the wiki page. - OGF24 Planning A 45 minute DMI session requested. At the moment Steven appears to be the only person that is planning to attend OGF. Michel, Allen and Mario are not - Ravi was not sure. The standards council is planning to have a plenary event at OGF24 to talk about the uptake of standards work. Plan to talk about standards across various groups - Steven can plug the DMI work at this session. - Rendering documents Michel has sent out the WSDL to Steve - WSDL did not contain SOAP binding information for either SOAP 1.1 or 1.2 - lead to some issues but this is sorted out now. Now have SOAP 1.1 bindings. The WSDL is now fairly mature. Can start to feed things back to the rendering documents. Things are working well. Michel and Steven will continue working on the interop and try to find the sensitive parts to work on and use this together with the XML generated to build the rendering documents. If we can present the results of the interop activities we may get further engagement from the broader community. Michel and Steven will announce when they are ready to move on to the next stage and get more people involved. Steven/Michel will flag when they think we should have another call. +-----------------------------------------------------------------------+ |Mario Antonioletti:EPCC,JCMB,The King's Buildings,Edinburgh EH9 3JZ. | |Tel:0131 650 5141|mario@epcc.ed.ac.uk|http://www.epcc.ed.ac.uk/~mario/ | +-----------------------------------------------------------------------+ -- The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336.