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Paper ID: 1545

Topology-aware Fault-Tolerance in Service-Oriented Grids
Paul,Townend Jie,Xu

Appeared in: Proceedings of the UK e-Science All Hands Conference 2006 website: http://www.allhands.org.uk/2006/
Page Numbers:421 - 425
Publisher: National e-Science Centre
Year: 2006
ISBN/ISSN: 0-9553988-0-0
Contributing Organisation(s):
Field of Science: e-Science

URL: http://www.allhands.org.uk/2006/proceedings/papers/686.pdf

Abstract: A promising means of attaining dependability improvements within service-oriented Grid environments is through the set of methods comprising design-diversity software fault-tolerance. However, applying such methods in a Grid environment requires the resolution of a new problem not faced in traditional systems, namely the common service problem whereby multiple disparate but functionally-equivalent services may share a common service as part of their respective workflows, thus decreasing their independence and increasing the likelihood of a potentially disastrous common-mode failure occurring. By establishing awareness of the topology of each channel/alternate within a design-diversity fault-tolerance scheme, techniques can be employed to avoid the common-service problem and achieve finer-grained control within the voting process. This paper explores a number of different techniques for obtaining topological information, and identifies the derivation of topological data from provenance information to be a particularly attractive technique. The paper concludes by detailing some very encouraging progress with integrating both provenance and topology-aware fault-tolerance applications into the Chinese CROWN Grid middleware system.

Keywords: e-Science, AHM 2006


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