一种冗余地理数据存储系统

摘要

Based on the features of geographic data the problems of traditional storage solutions, we improve the original storage manner;put forward new kind of redundant geographic data storage systems. This system mainly includes three-tier structure. Master server parse and navigate to a specific resource location server for the request send by application server, the resource location server then re-positioned based on the location and type of request data to the data storage server. By the data storage server and application-tier server, data communications, separate control and data flow. Each tier is responsible for monitoring the underlying architecture of the load. Through experiments and theoretical analysis proved that the design can extraction and retrieval data efficiently.%针对地理数据自身的特点和传统存储方案的不足，提出了一种新的冗余地理数据存储系统。该系统具有三层服务器架构。Master服务器对应用层发送的请求进行解析并定位到相应的资源定位服务器。资源定位服务器再根据请求数据的类型和位置定位到相应的数据存储服务器。最后由数据存储服务器和应用层服务器进行数据通讯。实现控制流、数据流的分开以及检索和存储的分开。配合在不同层级上实施的冗余、备份和监控策略，保证了在异常情况下系统的稳定性和可用性。实验以及理论分析都验证了该设计能够完成高效的数据提取和检索，并且具有较高的可信性。