A Data Persistency Approach for the DIET Metacomputing Environment

نویسندگان

  • Bruno Del-Fabbro
  • David Laiymani
  • Jean-Marc Nicod
  • Laurent Philippe
چکیده

Increasing performances by decreasing data transfer times is one of the main challenges of Grid Computing. In order to achieve such a goal, we propose in this paper a data persistency management service for the ASP (Application Service Provider) DIET metacomputing environment. Instead of multiple transmissions of the same data from a client to a server, data persistency allows to keep data inside the platform after a computation. As far as data are fully identified within the platform, clients have only to provide these identifiers for further uses. Our service implements data persistency by allowing the localization of data within the architecture and provides transparent data transfers between servers. Experimental results exhibit the low cost of adding our service in the DIET platform and confirm the feasibility of our approach. Key-words: Grid Computing, Grid RPC, Data Persistency, DIET Laboratoire d’Informatique de l’Université de Franche-Comté, UFR Sciences et Techniques, 16, route de Gray, 25030 Besançon Cedex (France) Téléphone : +33 (0)3 81 66 64 55 — Télécopie : +33 (0)3 81 66 64 50 Une approche de la persistance des données dans l’environnement de métacomputing DIET Résumé : Un des principaux challenges du calcul sur la grille est d’augmenter des performances en diminuant les transferts de données. Dans ce but, nous proposons dans cet article un service de gestion de la persistance des données pour l’environnement ASP (Application Service Provider) DIET. Plutôt que de transmettre plusieurs fois la me donnée de clients vers les serveurs de calcul, la persistance permet de conserver celles-ci à l’intérieur de la plate-forme. Les données étant identifiées de manière unique au sein de DIET, les clients n’ont plus qu’à fournir ces identifiants afin de pouvoir réutiliser ces données pour les calculs suivants. Notre service implante la persistance des données par la localisation de celles-ci au sein de l’infrastructure et fournit une méthode de transfert transparente entre les serveurs de calcul. Les résultats expérimentaux montrent le faible coût de la mise en place de ce service et confirme la faisabilité de cette approche. Mots-clés : Grid Computing, Grid RPC, Persistance des données, DIET Laboratoire d’Informatique de l’Université de Franche-Comté, UFR Sciences et Techniques, 16, route de Gray, 25030 Besançon Cedex (France) Téléphone : +33 (0)3 81 66 64 55 — Télécopie : +33 (0)3 81 66 64 50 A Data Persistency Approach for the DIET Metacomputing Environment 7

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تاریخ انتشار 2004