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Abstract This paper presents WEST, an efficient sta This paper presents WEST, an efficient state transfer protocol for Byzantine fault-tolerant state machine replication systems enhanced with proactive-reactive recovery. Usually the recovery of a stateful replica consumes a considerable amount of time, mostly due to state transfer. As a result it is essential to reduce the state transfer time, simultaneously guaranteeing that correct replicas never lose their state. Our approach consists on creating periodic state checkpoints stored in a distributed secure component (wormhole), and relying on this component to manage/control state transfer operations. Preliminary evaluation results show the performance and overhead of the proposed protocol. nce and overhead of the proposed protocol.
Author Rogério Correia + , Paulo Sousa +
Booktitle Proceedings of the DSN 2009 Workshop on Proactive Failure Avoidance, Recovery and Maintenance (PFARM), Estoril, Portugal, June 2009.  +
Key Correia09west  +
Month jun  +
NumPubDate 2,009.06  +
ResearchLine Fault And Intrusion Tolerance in Open Distributed Systems (FIT) +
Title WEST: Wormhole-Enhanced State Transfer  +
Type inproceedings  +
Url  +
Year 2009  +
Categories Publication  +
Modification dateThis property is a special property in this wiki. 14 January 2013 14:41:05  +
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