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Paper ID: 1428

Replication-Based Fault Tolerance in a Grid Environment
Paul,Townend Jie,Xu

Appeared in: Proceedings of the UK e-Science All Hands Conference 2004 website: http://www.allhands.org.uk/2004/
Page Numbers:1100 - 1103
Publisher: Engineering and Physical Sciences Research Council
Year: 2004
ISBN/ISSN: 1-904425-21-6
Contributing Organisation(s):
Field of Science: e-Science

URL: http://www.allhands.org.uk/2004/proceedings/papers/257.pdf

Abstract: The potential size and complexity of service-based applications suggests that many such applications will be very prone to errors and failures. The e-Demand project at the University of Leeds proposes a replication-based fault tolerance scheme that allows voting to be performed on results of functionally-equivalent services, with the aim of detecting any incorrect results whilst bringing about potential improvements in performance. We present our initial implementation, constructed using Java and Globus Toolkit 3, consisting of a “co-ordination service” that locates, broadcasts, receives, and votes upon jobs submitted by a client program. We also detail DSS-Net, the range of computing nodes and web hosting environments that we are hoping to migrate our services to shortly. In the next few months, we plan to increase the functionality in our service to allow for more complex voting schemes to be specified and performed, and allowing more sophisticated and stochastic services to be used with the scheme.

Keywords: e-Science, AHM 2004


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