A PPARC funded project AG/AVO grid-tech work Guy Rixon AstroGrid Consortium meeting April 2004.

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Presentation transcript:

A PPARC funded project AG/AVO grid-tech work Guy Rixon AstroGrid Consortium meeting April 2004

AG/AVO grid-tech report WG Activity Grid-tech report OGSA-DAI experiments Grid Data Warehouse GridFTP experiments Working code Could be added to MySpace Certification proposal In-house management of PKI Needs a prototype GGF involvement Standards input to IVOA (imminent) Asynchronous activities Security

AG/AVO grid-tech report OGSA-DAI etc GDW works… …for a lenient value of ‘works’. Pre-loaded data Read-only data Small results sets OGSA-DAI not yet up to the job

AG/AVO grid-tech report Off-the-shelf grid services GridFTP OGSA-DAI ( maybe) ELDAS (OGSA-DAI clone) Urmm… Nothing else seems both standard and useful.

AG/AVO grid-tech report DFDL Data Format Description Language Map between XMLish structures and binary tables storage? Current version based on W3C XML schema Need help in defining/testing it.

AG/AVO grid-tech report GGF architecture & plumbing Open Grid Services Architecture (OGSA): Still vapourous; nothing we can use. Open Grid Services Infrastructure (OGSI): Dead as a parrot. WS-ResourceFramework (WS-RF) Replaces OGSI Subject of OASIS technical committee Useful to IVO:  Connect IVO web-services to grid  Manage asynchronous activities Few/no implementations yet

AG/AVO grid-tech report Grid Applications IT Industry standards OGSAOGSA Projection, c. GGF13 The squeeze on OGSA Grid Applications OGSA IT Industry standards Original plan, c. GGF5 OGSA Grid Applications IT Industry standards Current reality, c. GGF10 DFDLGridFTPGSI? OGSAOGSA OGSA’s job eroded by IVOA and industry products? If so, we get more benefit from GGF standards that assist the junction of apps and industry

AG/AVO grid-tech report The way forward As per the agreement at the Strasbourg IVOA meeting: Do ‘vanilla’ web services (WS-I etc.) Use grid/GGF/OASIS plumbing with caution  GridFTP  Grid-style security Hide grids as ‘intragrids’ Plus, in 2004/2005: Maybe use WS-RF to serve our own ends Re-integrate with the GGF grid later (2005/2006?)