We describe the architecture and initial implementation of the next-generation of Grid Data Management Middleware in the EU DataGrid (EDG) project. The new architecture stems out of our experience and the users requirements gathered during the two years of running our initial set of Grid Data Management Services. All of our new services are based on the Web Service technology paradigm, very much in line with the emerging Open Grid Services Architecture (OGSA). We have modularized our components and invested a great amount of effort towards a secure, extensible and robust service, starting from the design but also using a streamlined build and testing framework. Our service components are: Replica Location Service, Replica Metadata Service, Replica Optimization Service, Replica Subscription and high-level replica management. The service security infrastructure is fully GSI-enabled, hence compatible with the existing Globus Toolkit 2-based services; moreover, it allows for fine-grained authorization mechanisms that can be adjusted depending on the service semantics.
Cite
@article{arxiv.physics/0305134,
title = {Next-Generation EU DataGrid Data Management Services},
author = {Diana Bosio and James Casey and Akos Frohner and Leanne Guy and Peter Kunszt and Erwin Laure and Sophie Lemaitre and Levi Lucio and Heinz Stockinger and Kurt Stockinger and William Bell and David Cameron and Gavin McCance and Paul Millar and Joni Hahkala and Niklas Karlsson and Ville Nenonen and Mika Silander and Olle Mulmo and Gian-Luca Volpato and Giuseppe Andronico},
journal= {arXiv preprint arXiv:physics/0305134},
year = {2009}
}
Comments
Talk from the 2003 Computing in High Energy and Nuclear Physics (CHEP03), La Jolla,Ca, USA, March 2003 8 pages, LaTeX, the file contains all LaTeX sources - figures are in the directory "figures"