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在高性能商用数据库的管理下 ,以双服务器外挂同一盘阵的HA系统模式为结构的HLR数据库系统 ,有良好的数据安全与完备性 ,但无法满足HLR系统的实时性要求。为此引入内存缓存以提高系统处理的实时性 ,但需解决内外存及主备端内存的数据一致。本文分析了HA结构下HLR数据库系统的结构与数据组织 ,定义了修改图样 ,提出了实现数据一致的方法
Under the management of high-performance commercial database, the HLR database system with the structure of HA system with dual server plug-in on the same disk array has good data security and completeness but can not meet the real-time requirements of the HLR system. To this end, the introduction of memory cache to improve the real-time processing of the system, but the need to address internal and external memory and data on the main and backup memory consistent. This paper analyzes the structure and data organization of HLR database system under the HA structure, defines the modified pattern, and proposes a method to achieve consistent data