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2003 International Conference on Dependable Systems and Networks, 2003. Proceedings. (2003)
San Francisco, California
June 22, 2003 to June 25, 2003
ISBN: 0-7695-1952-0
pp: 435
Fran?ois Ta?ani , LAAS-CNRS
Jean-Charles Fabre , LAAS-CNRS
Third party software is now increasingly used in systems with high dependability requirements. This evolution of system development raises new challenges, in particular regarding the implementation of fault-tolerance. As systems are often built of black-box components, some crucial aspects of their behavior regarding replication cannot be handled. This is also true to some extent for open-source components as mastering their internal behavior is sometimes very tricky (e.g. OS and ORBs). During the last decade reflection has emerged as a very fruitful paradigm for the disciplined management of non-functional aspects, among which fault-tolerance. In this paper we discuss how to apply reflection to multi-layer systems for implementing fault-tolerance in an independent and principled manner. We analyze the connections between the underlying assumptions of fault-tolerance strategies and the different layers of a system. Based on this multi-layer analysis we show how the requirements of a family of replication algorithms can be addressed on a concrete architecture, resulting in what we name Multi-Layer Reflection.

F. Ta?ani, J. Fabre and M. Killijian, "Towards Implementing Multi-Layer Reflection for Fault-Tolerance," 2003 International Conference on Dependable Systems and Networks, 2003. Proceedings.(DSN), San Francisco, California, 2003, pp. 435.
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