摘要
本文提出了一个改进的主副本并发控制算法,以弥补一般的主副拳并发控制算法中对于读请求有可能要多一次通信的缺点。本文从实现的角度讨论改进的主副本法所采用的数据结构、加锁算法以及死锁检测和副本更新等问题。
In this paper,following the analysis of some concurrency control algorithms frequently
used in DDBMS,we point out that Primary Copy Locking (PCL) concurrency control algorithm is si-
mple,efficient,and easy to implement in the environment of microcomputers and local network An
improved PCL algorithm is proposed to overcome the deficiencies of ordinary PCL The data structure.
locking algorithm,deadlock detection and copy updating of the improved PCL algorithm are discussed.
出处
《计算机研究与发展》
EI
CSCD
北大核心
1991年第7期47-52,共6页
Journal of Computer Research and Development
