文章基本信息

标题：A Prudent-Precedence Concurrency Control Protocol for High Data Contention Database Enviornments
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作者：Weidong Xiong ; Feng Yu ; Mohammed Hamdi 等
期刊名称：International Journal of Database Management Systems
印刷版ISSN：0975-5985
电子版ISSN：0975-5705
出版年度：2016
卷号：8
期号：5
页码：1
DOI：10.5121/ijdms.2016.8501
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：In this paper, we propose a concurrency control protocol, called the Prudent-Precedence ConcurrencyControl (PPCC) protocol, for high data contention database environments. PPCC is prudently moreaggressive in permitting more serializable schedules than two-phase locking. It maintains a restrictedprecedence among conflicting transactions and commits the transactions according to the serializationorder established in the executions. A detailed simulation model has been constructed and extensiveexperiments have been conducted to evaluate the performance of the proposed approach. The resultsdemonstrate that the proposed algorithm outperforms the two-phase locking and optimistic concurrencycontrol in all ranges of system workload.
关键词：Concurrency Control; Serializability; Serialization Graph; 2PL