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Published in:
2007 | OriginalPaper | Chapter
Revisiting Certification-Based Replicated Database Recovery
Authors : M. I. Ruiz-Fuertes, J. Pla-Civera, J. E. Armendáriz-Iñigo, J. R. González de Mendívil, F. D. Muñoz-Escoí
Published in: On the Move to Meaningful Internet Systems 2007: CoopIS, DOA, ODBASE, GADA, and IS
Publisher: Springer Berlin Heidelberg
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Certification-based database replication protocols are a good means for supporting transactions with the
snapshot
isolation level. Such kind of replication protocol does not demand readset propagation and allows the usage of a symmetric algorithm for terminating transactions, thus eliminating the need of a final voting phase. Recovery mechanisms especially adapted for certification-based replication protocols have not been thoroughly studied in previous works. In this paper we propose two recovery techniques for this kind of replication protocols and analyze their performance. The first technique consists in dividing the recovery in two stages, reducing the certification load and the amount of information to be recovered in the second stage. The second technique scans and compacts the set of items to transfer, sending only the latest version of each item. We show that these techniques can be easily combined, reducing thus the recovery time.