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

Autor:	Xiong, Weidong, Yu, Feng, Hamdi, Mohammed, Hou, Wen-Chi
Rok vydání:	2016
Předmět:	Computer Science - Databases
Zdroj:	International Journal of Database Management Systems (IJDMS), 8(5), 1-14 (2016)
Druh dokumentu:	Working Paper
DOI:	10.5121/ijdms.2016.8501
Popis:	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. Comment: 14 pages, 16 figures, 1 table
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1611.05557 Zobrazit plný text záznamu View this record from Arxiv