13-17 February 2006
Tata Institute of Fundamental Research
Europe/Zurich timezone

Flexible job submission using Web Services: the gLite WMProxy experience

15 Feb 2006, 14:20
20m
Auditorium (Tata Institute of Fundamental Research)

Auditorium

Tata Institute of Fundamental Research

Homi Bhabha Road Mumbai 400005 India
oral presentation Grid middleware and e-Infrastructure operation Grid Middleware and e-Infrastructure Operation

Speaker

Giuseppe AVELLINO (Datamat S.p.A.)

Description

Contemporary Grids are characterized by a middleware that provides the necessary virtualization of computation and data resources for the shared working environment of the Grid. In a large-scale view, different middleware technologies and implementations have to coexist. The SOA approach provides the needed architectural backbone for interoperable environments, where different providers can offer their solutions without restricting users to just one specific implementation. The WMProxy (Workload Manager Proxy) is a new service providing access to the gLite Workload Management System (WMS) functionality through a simple Web Services based interface. The WMProxy was designed to efficiently handle a large number of requests for job submission and control to the WMS and the service interface addresses the Web Services and SOA architecture standards, in particular adhering to the WS- Interoperability basic profile. In this paper we describe the WMProxy service: from its architecture, independent from the used Web Services container, up to the provided functionality, all together with the rationale behind the decisions made during both the design and implementation phases. In particular, we provide a description of how the WMProxy is integrated with the gLite Workload Management System; the used technologies, focusing on the Web Services features; the mechanisms adopted to improve performances still keeping high reliability and fault-tolerance; the changes in the job submission operation chain with respect to the previous generation of Workload Management System and the new operations provided in order to support bulk-submission and improve Client-Server interaction capabilities.

Primary authors

Alessandro MARASCHINI (Datamat S.p.A.) Andrea CAVALLINI (Datamat S.p.A.) Andrea PARRINI (Datamat S.p.A.) Annalisa TERRACINA (Datamat S.p.A.) Claudio SCARCELLA (Datamat S.p.A.) Fabrizio PACINI (Datamat S.p.A.) Giuseppe AVELLINO (Datamat S.p.A.) Marco SOTTILARO (Datamat S.p.A.) Stefano BECO (Datamat S.p.A.)

Co-authors

A. DORIGO (INFN Padova) A. GIANELLE (INFN Padova) A. GUARISE (INFN Torino) A. KRENEK (CESNET) A. S. BORGIA (INFN Padova) A. WERBROUCK (INFN Torino) D. KOURIL (CESNET) D. REBATTO (INFN Milano) E. MOLINARI (INFN Milano) E. RONCHIERI (INFN Cnaf) F. DVORAK (CESNET) F. GIACOMINI (INFN Cnaf) F. PRELZ (INFN Milano) G. FIORENTINO (INFN Milano) G. PATANIA (INFN Torino) J. POSPISIL (CESNET) J. SITERA (CESNET) J. SKRABAL (CESNET) L. MATYSKA (CESNET) L. ZANGRANDO (INFN Padova) M. CECCHI (INFN Cnaf) M. MARZOLLA (INFN Padova) M. MEZZADRI (INFN Milano) M. MORDACCHINI (INFN Padova) M. MULAC (CESNET) M. PAPPALARDO (INFN Catania) M. RUDA (CESNET) M. SGARAVATTO (INFN Padova) M. VOCU (CESNET) P. ANDREETTO (INFN Padova) R. LOPS (INFN Cnaf) R. PIRO (INFN Torino) S ANDREOZZI (INFN Cnaf) S. MONFORTE (INFN Catania) T. FERRARI (INFN Cnaf) V. CIASCHINI (INFN Cnaf) V. MARTELLI (INFN Milano) V. VENTURI (INFN Cnaf) Z. SALVET (CESNET)

Presentation Materials