一种基于实时数据缓存技术数据访问组件的设计与实现  

The Design and Implementation of Data Access Component Based on Real-time Data Caching

作　　者：续龙飞 丁乙 Xu Longfei Ding Yi(State Key Laboratory of Air Traffic Management System and Technology, Nanjing 210007, China)

机构地区：[1]空中交通管理系统与技术国家重点实验室,南京210007

出　　处：《信息化研究》2017年第2期65-68,共4页INFORMATIZATION RESEARCH

摘　　要：如何高效实时地查询数据库是系统应用经常需要考虑的问题。完全依靠复杂的Memcached、Redis等内存数据库,在多并发应用场景下进行实时数据查询时,对于服务器的访问压力往往过大且数据易失,轻量级的C/S架构的系统往往不是最佳选择。文章基于共享内存技术和数据文件缓存技术,设计并实现了一种数据访问组件,能够实现数据实时缓存与更新,满足本地实时高效访问数据的需求,也在一定程度上提高了系统的可用性。As the real--time system application, how to query the database efficiently is a major problem to be considered. Completely rely on the memory database, such as complex Memcached, Redis in multiple concurrent real--time data query application scenarios, server access pressure is always too large and the data is volatile. It is not the best choice for the lightweight C/S architecture of the system. Based on Shared memory technology and data file cache technology, this article designs and implements a data access component, which can realize real--time data caching and updating. It can meet the needs of local real--time accessing to data efficiently, and to some extent improve the usability of the system as well.

关 键 词：数据缓存 数据访问 内存数据库 

分 类 号：TP319[自动化与计算机技术—计算机软件与理论]