A database replication middleware with fine-grained concurrency control (データベースシステム)
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概要
- 論文の詳細を見る
Database replication is an essential art for high performance and availability. If replication functionalities can be implemented only in a middleware layer with no changes to existing database servers, we can distill a lot of benefits from the setting. However, it is a big challenge to realize the middleware without sacrificing throughput and consistency. In this paper, we propose LEFOMA, a new synchronous database replication middleware with tuple based concurrency control guaranteeing snapshot isolation, which needs no changes to database servers. The control avoids the deadlock against which synchronous replication middlewares commonly come up. Moreover, providing fine-grained locking, the control brings higher throughput. We show LEFOMA is not only practical but also low cost since we implemented a prototype on top of PostgreSQL, whose code size is very small. Our experimental results using TPC-C benchmark reveal that, compared to one of synchronous replication techniques, LEFOMA provides higher throughput for high concurrent execution environment.
- 一般社団法人情報処理学会の論文
- 2008-09-14
著者
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NAKAMURA Hiroshi
Research Center for Advanced Science and Technology, the University of Tokyo
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Mishima Takeshi
Research Center For Advanced Science And Technology The University Of Tokyo
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Nakamura Hiroshi
Research And Development Division Technical Research Loborotory Kawasaki Dockyard Co. Ltd.
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Nakamura Hiroshi
Research Center For Advanced Science And Technology The University Of Tokyo
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