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引用次数: 0
摘要
本文给出了一个主副本两阶段锁定(2PL)的算法模型。为了避免分布式数据库管理系统中分布式事务的死锁，采用了时间戳机制。从避免死锁的时间戳机制的两种策略中，我们考虑了“伤口-等待”策略。本文对GPSS World Personal Version环境下的“wait-die”法和“wound - wait”两种算法的建模结果进行了比较。
An algorithm modelling primary copy two-phase locking with integrated mechanism of timestamps
The following paper presents a model of algorithm for primary copy two-phase locking (2PL). To avoid deadlocks of distributed transactions in distributed database management systems is used a timestamps mechanism. From the two strategies for timestamps mechanism for deadlocks avoiding, we consider the "wound -- wait" strategy. In the paper is presented a comparative variant of the results from the modelling in GPSS World Personal Version environment of the two algorithms: "wait-die" method and "wound -- wait".
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