21-27 March 2009
Prague
Europe/Prague timezone

The impact and adoption of GLUE 2.0 in the LCG/EGEE production Grid

26 Mar 2009, 15:40
20m
Club B (Prague)

Club B

Prague

Prague Congress Centre 5. května 65, 140 00 Prague 4, Czech Republic
oral Grid Middleware and Networking Technologies Grid Middleware and Networking Technologies

Speaker

Dr Stephen Burke (RUTHERFORD APPLETON LABORATORY)

Description

The GLUE information schema has been in use in the LCG/EGEE production Grid since the first version was defined in 2002. In 2007 a major redesign of GLUE, version 2.0, was started in the context of the Open Grid Forum following the creation of the GLUE Working Group. This process has taken input from a number of Grid projects, but as a major user of the version 1 schema LCG/EGEE has had a strong interest that the new schema should support its needs. In this paper we discuss the structure of the new schema in the light of the LCG/EGEE requirements and explain how they are met, and where improvements have been achieved compared with the version 1 schema. In particular we consider some difficulties encountered in recent extensions of the use of the version 1 schema to aid resource accounting in LCG, to enable the use of the SRM version 2 storage protocol by the LHC experiments, and to publish information about a wider range of services to improve service discovery. We describe how these can be better met by the new schema, and we also discuss the way in which the transition to the new schema is being managed.
Presentation type (oral | poster) oral

Primary author

Dr Stephen Burke (RUTHERFORD APPLETON LABORATORY)

Co-authors

Mr Felix Ehm (CERN) Dr Flavia Donno (CERN) Mr Laurence Field (CERN) Dr Maarten Litmaath (CERN) Dr Paul Millar (DESY) Dr Sergio Andreozzi (INFN-CNAF)

Presentation Materials