数据同步复制技术在嵌入式信息系统的应用研究

发布时间：2018-06-02 16:43

本文选题：移动数据库 + 数据同步　；参考：《长春理工大学》2012年硕士论文

【摘要】：近年来,随着通讯技术和互联网技术的迅速发展,以及PDA、笔记本电脑、智能手机等便携设备的快速更新,移动数据库技术得到了广泛的应用。同时,也伴随有诸多新的问题产生,其中数据同步复制过程中如何确保数据一致性问题是研究的重点。针对这一问题,本文从缓存技术着手,采用基于数据分类和优先级的动态管理策略来控制缓存内容,对数据缓存工作过程中联机状态、断接状态和集合状态的网络连接特点进行了研究分析,提出了基于混合复制方式的同步复制机制,即采用惰性复制和主从复制与对等复制混合的同步机制来确保数据的一致性。对同步过程中数据冲突问题,运用了针对不同冲突类型采取不同协调和回滚策略来解决冲突的方法。本文在数据缓存技术研究分析的基础上,对混合同步复制模块中各部分的功能和工作流程进行了设计和详细的阐述,最后通过实验对同步机制的性能进行了测试,并与传统的同步方式进行了对比分析,验证了基于混合复制方式的同步复制机制在通信量的控制和运行效率上具有一定的优越性。
[Abstract]:In recent years, with the rapid development of communication technology and Internet technology, as well as the rapid update of portable devices such as PDAs, laptops, smart phones, mobile database technology has been widely used. At the same time, there are many new problems, among which how to ensure the consistency of data in the process of synchronous replication is the focus of research. To solve this problem, this paper starts with cache technology, adopts dynamic management strategy based on data classification and priority to control the contents of cache. The characteristics of network connection between disconnected state and set state are studied and analyzed. A synchronous replication mechanism based on hybrid replication is proposed, that is, the synchronization mechanism of inert replication and master-slave replication and peer-to-peer replication is adopted to ensure the consistency of data. To solve the problem of data conflict in synchronization process, different coordination and rollback strategies are used to resolve the conflict according to different conflict types. Based on the research and analysis of the data cache technology, the function and workflow of each part of the mixed synchronous replication module are designed and described in detail. Finally, the performance of the synchronization mechanism is tested through experiments. Compared with the traditional synchronization mode, it is proved that the synchronous replication mechanism based on hybrid replication has some advantages in traffic control and operation efficiency.
【学位授予单位】：长春理工大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP311.13;TP368.1

【引证文献】