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A fault-tolerant algorithm for replicated data management

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3 Author(s)
S. Rangarajan ; Maryland Univ., College Park, MD, USA ; S. Setia ; S. K. Tripathi

The problem of managing replicated copies of data in a distributed database is considered. Quorum consensus methods for managing replicated data require that an operation proceed only if a group of copies form a quorum. For example, in a majority voting scheme, for a write operation to proceed, a majority of the copies have to form a quorum. The authors first introduce a performance measure for measuring the performance of fault-tolerant algorithms for this problem. They then propose a quorum-based method which is highly fault tolerant and has a low message overhead. The algorithm can tradeoff fault tolerance for lower message overhead. The algorithm is compared to existing algorithms

Published in:

Data Engineering, 1992. Proceedings. Eighth International Conference on

Date of Conference:

2-3 Feb 1992