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Implementing E-transactions with asynchronous replication

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2 Author(s)
S. Frolund ; Hewlett-Packard Co., Palo Alto, CA, USA ; R. Guerraoui

This paper describes a distributed algorithm that implements the abstraction of e-Transaction: a transaction that executes exactly-once despite failures. Our algorithm is based on an asynchronous replication scheme that generalizes well-known active-replication and primary-backup schemes. We devised the algorithm with a three-tier architecture in mind: the end-user interacts with front-end clients (e.g., browsers) that invoke middle-tier application servers (e.g., web servers) to access back-end databases. The algorithm preserves the three-tier nature of the architecture and introduces a very acceptable overhead with respect to unreliable solutions

Published in:

IEEE Transactions on Parallel and Distributed Systems  (Volume:12 ,  Issue: 2 )