Integrating resource and service discovery in the CoreGrid information cache mediator component
Giovanni Aloisio, Zoltán Balaton, Peter Boon, Massimo Cafaro, Italo Epicoco, Gábor Gombás, Péter Kacsuk, Thilo Kielmann, Daniele Lezzi · 2005
Abstract. In this paper we describe how the CoreGrid application-level information cache mediator component will benefit from the integration of resource and service discovery mechanisms available in iGrid and Mercury. The former is a novel Grid Information Service based on the relational model. iGrid has been initially developed within the GridLab project by the ISUFI Center for Advanced Computational Technologies (CACT) at the University of Lecce, Italy. It provides fast and secure access to both static and dynamic information through a Globus Toolkit GSI (Grid Security Infrastructure) enabled web service. Besides publishing system information, iGrid also allow publication of user’s or service supplied information. The adoption of the relational model provides a flexible model for data, and the hierarchical distributed architecture provides scalability and fault tolerance. The latter, which has also been initially developed within the GridLab project by MTA SZTAKI, has been designed to satisfy requirements of grid performance monitoring: it provides monitoring data represented as metrics via both pull and push access semantics and also supports steering by controls. It supports monitoring of grid entities such as resources and applications in a generic, extensible and scalable way. It is implemented in a modular way with emphasis on simplicity, efficiency, portability and low intrusiveness on the monitored system. 1