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arXiv · 1611.05557

A Prudent-Precedence Concurrency Control Protocol for High Data Contention Database Enviornments

Weidong Xiong·Feng Yu·Mohammed Hamdi·Wen-Chi Hou
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Abstract

In this paper, we propose a concurrency control protocol, called the Prudent-Precedence Concurrency Control (PPCC) protocol, for high data contention database environments. PPCC is prudently more aggressive in permitting more serializable schedules than two-phase locking. It maintains a restricted precedence among conflicting transactions and commits the transactions according to the serialization order established in the executions. A detailed simulation model has been constructed and extensive experiments have been conducted to evaluate the performance of the proposed approach. The results demonstrate that the proposed algorithm outperforms the two-phase locking and optimistic concurrency control in all ranges of system workload.

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Weidong Xiong, Feng Yu, Mohammed Hamdi, Wen-Chi Hou. 2016-11-17. A Prudent-Precedence Concurrency Control Protocol for High Data Contention Database Enviornments. https://doi.org/10.5121/ijdms.2016.8501

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