一种并行实时数据库动态平衡算法  

Dynamic balance of parallel real-time database

作　　者：赵小松[1] 

机构地区：[1]华中科技大学计算机科学与技术学院

出　　处：《华中科技大学学报（自然科学版）》2003年第11期7-10,共4页Journal of Huazhong University of Science and Technology(Natural Science Edition)

摘　　要：在探讨并行系统环境中影响实时事务执行时间 3个因素 :工作负载、数据的获取以及事务调度等的基础上 ,利用启发策略并采用新的数据迁徙及事务迁徙技术 ,提出了一种并行实时数据库动态平衡算法 .在PRTS系统上实现了该算法 ,从加速比和实时事务执行成功率两个参数上论证了该算法的可行性和优越性 .This paper brought forward a kind of dynamic balance algorithm of parallel database by utilizing heuristic strategy and technology of data shipping and transaction shipping based on the comprehensive discussion about the three factors impacting the real-time execution of transactions in the parallel system, that is, workload, the availability of data, transaction schedule. The feasibility and advantage of the algorithm realized in PRTS system was proved from the aspect of speed-up and percentage of transactions completed within their deadlines.

关 键 词：并行实时数据库 动态平衡 数据迁徙 事务迁徙 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]