An Aggressive Concurrency Control Protocol for Main Memory Databases | Zendy

Mohammed Hamdi | Zendy; Weidong Xiong | Zendy; Feng Yu | Zendy; Sarah Alswedani | Zendy; WenChi Hou | Zendy

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An Aggressive Concurrency Control Protocol for Main Memory Databases

Author(s) -

Mohammed Hamdi,

Weidong Xiong,

Feng Yu,

Sarah Alswedani,

WenChi Hou

Publication year - 2016

Publication title -

international journal of computer applications

Language(s) - English

Resource type - Journals

ISSN - 0975-8887

DOI - 10.5120/ijca2016912260

Subject(s) - computer science , concurrency control , database , protocol (science) , concurrency , multiversion concurrency control , control (management) , distributed concurrency control , programming language , artificial intelligence , database transaction , medicine , alternative medicine , pathology

In this paper, we propose a concurrency control protocol, called the Prudent-Precedence Concurrency Control (PPCC) protocol, for high data contention main memory databases. 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 in all ranges of system workload.

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