Verlag des Forschungszentrums Jülich
JUEL-4263
The question of reliability and fault tolerance is often not properly answered when it
comes to the realization of distributed systems, although the deployment of any
system in a distributed environment shows that those factors are of utmost importance.
As the Grid information service developed during the diploma theses will be deployed
in a highly-distributed Grid, and is one of the essential services for the Grid to operate
properly, it is expected to satisfy certain reliability criteria . In this thesis, I present a
reliability aspect of Grid information service through a multi-tier replication
infrastructure by focusing on its architectural and implementation details .
Shahbaz Memon, Mohammad
A Reliable Grid Information Service Using a Unified Information Model
XII, 87 S. S., 2008
An information system is an essential part of every Grid system since it provides
information about the entities (services, resources, user, etc .) a Grid consists of. The
information provided by such a system may serve a variety of needs . It can for
example be used for brokering purposes, to schedule workflows, to orchestrate
services, or to predict the performance of a Grid . Such use cases very much determine
the information model and the design of the information service . In this thesis, I
present an open standard, platform-agnostic, and web services based information
service. Since a Grid information service consolidates disseminated information of
diversified Grid entities, the modeling of this information has a large impact on the
Grid information service while executing its business functions . In this thesis, I
formalize a resource schema which models an elementary concepts required to
represent significant Grid entities.
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