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The leganet system: Freshness-aware transaction routing in a database cluster (2007)
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BibTeX
@MISC{Gançarski07theleganet,
author = {Stéphane Gançarski and Hubert Naacke and Esther Pacitti and Patrick Valduriez},
title = {The leganet system: Freshness-aware transaction routing in a database cluster },
year = {2007}
}
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Abstract
... databases can be update-intensive and must remain autonomous. In this paper, we describe the Leganet system which performs freshness-aware transaction routing in a database cluster. We use multi-master replication and relaxed replica freshness to increase load balancing. Our transaction routing takes into account freshness requirements of queries at the relation level and uses a cost function that takes into account the cluster load and the cost to refresh replicas to the required level. We implemented the Leganet prototype on an 11-node Linux cluster running Oracle8i. Using experimentation and emulation up to 128 nodes, our validation based on the TPC-C benchmark demonstrates the performance benefits of our approach.
