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Design and implementation of a Byzantine fault tolerance framework for non-deterministic applications

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4 Author(s)
Zhang, H. ; Dept. of Electr. & Comput. Eng., Cleveland State Univ., Cleveland, OH, USA ; Zhao, W. ; Moser, L.E. ; Melliar-Smith, P.M.

State-machine-based replication is an effective way to increase the availability and dependability of mission-critical applications. However, all practical applications contain some degree of non-determinism. Consequently, ensuring strong replica consistency in the presence of application non-determinism has been one of the biggest challenges in building dependable distributed systems. In this Study, the authors propose a classification of common types of application non-determinism with respect to the requirement of achieving Byzantine fault tolerance (BFT), and present the design and implementation of a BFT framework that controls these types of non-determinism in a systematic manner.

Published in:

Software, IET  (Volume:5 ,  Issue: 3 )