一种基于MapReduce的矢量空间数据存储与查询方法

摘要

According to the problems arising from mass of vector spatial data storage and query, a model of vector data storage was proposed based on HBase and the distributed data import and query methods was implemented using MapReduce as the computing framework.Through calculating the Geohash code of spatial data central point, the row-key of data table was designed, and spatial query was achieved by using the features of Geohash and the characteristics of the row-key range scan data.Experiments showed that the proposed distributed storage and query method has good feasibility and high execution efficiency.%针对海量的矢量空间数据存储和查询问题,提出一种基于HBase的矢量数据存储模型,实现了以MapReduce为计算框架的分布式数据导入与查询方法.通过计算空间数据中心点的Geohash编码设计数据表的行键,有效利用Geohash特性和行键范围扫描数据的特点实现空间查询.实验表明,提出的分布式存储与查询方法有较好的可行性和较高的执行效率.