| 一种基于加锁粒度的分布式高优先级两段锁的并发控制模型 |
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| 引用本文： | 王劲波,薛永生,徐勋民. 一种基于加锁粒度的分布式高优先级两段锁的并发控制模型[J]. 计算机应用与软件, 2003, 20(6): 16-18,33 |
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| 作者姓名： | 王劲波 薛永生 徐勋民 |
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| 作者单位： | 厦门大学计算机科学系,厦门,361005 |
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| 摘 要： | 本文通过分析并发控制中的几种锁模型及其在分布式环境下的拓展，提出了一种基于加锁粒度的分布式高优先级两段锁模型。在该模型中，引入一种加锁检测机制，通过该机制可以确定哪些冲突事务可以通过降低加锁粒度来解决冲突。同时提出了该模型的算法。该算法在避免死锁、提高事务的并发度上有很大的改善。
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| 关 键 词： | 加锁粒度 并发控制模型 分布式高优先级两段锁 分布式数据库 计算机网络 |
A LOCKING GRANULARITY- BASED DISTRIBUTED HGH PRIORITY TWO PHASE LOCKING CONCURRENCY CONTROL MODEL |
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| Wang Jinbo Xue Yongsheng Xu Xunmin. A LOCKING GRANULARITY- BASED DISTRIBUTED HGH PRIORITY TWO PHASE LOCKING CONCURRENCY CONTROL MODEL[J]. Computer Applications and Software, 2003, 20(6): 16-18,33 |
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| Authors: | Wang Jinbo Xue Yongsheng Xu Xunmin |
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| Abstract: | The present paper deals with some lock models in concurrency control and how to using them on the distributed environment, and presents a locking granularity - based distributed high priority two phase locking model. At this model, a locking checking scheme is introduced, and some conflicts can be solved by decreasing locking granularity with this scheme. At last the algorithm of this model is presented. Deadlock can be avoided and increasing transaction concurrency can be increased by this algorithm. |
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| Keywords: | Distributed database Concurrency control Locking granularity LGDHP - 2PL |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
