| 实时数据库事务的主-从并发控制方法 |
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| 引用本文： | 刘云生,刘洁.实时数据库事务的主-从并发控制方法[J].华中科技大学学报(自然科学版),1998(8). |
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| 作者姓名： | 刘云生 刘洁 |
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| 作者单位： | 华中理工大学计算机科学与技术学院 |
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| 基金项目： | 国家自然科学基金!69573010，国防预研资助 |
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| 摘 要： | 提出了一种针对实时数据库的主-从并发控制策略：从并发控制解决同类事务间的读写冲突，主并发控制解决不同类事务类间的读写冲突．并指出，这种主-从并发控制模型的性能要优于单一并发控制算法．
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| 关 键 词： | 数据库 硬实时事务 软实时事务 非实时事务 主-从并发控制 |
A Concurrent Master-Slave Control Algorithm in Real-Time Databases |
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| Liu Yunsheng,Liu Jie.A Concurrent Master-Slave Control Algorithm in Real-Time Databases[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1998(8). |
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| Authors: | Liu Yunsheng Liu Jie |
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| Institution: | Liu Yunsheng;Liu Jie |
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| Abstract: | There are usually three classes of transactions, namely hard real-time, soft real-time andnon real-time transactions, co-existing in the real-time DB system. According to their differentcharacters, a concurrent master-slave control algorithm is developed, in which the intra-class conflicts oftransactions were solved by the three slave concurrent controllers while the inter-class conflicts solvedby the master one. It is found that the performance of such an algorithm is better than that of a singleconcurrent controller both in maintaining the time constrains of real-time transactions and in theoutput of non real-time ones. |
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| Keywords: | database hard real-time transaction soft real-time transaction non real-time transaction master-slave concurrent control |
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