国家级国土空间基础信息平台分布式数据库设计与实现

Design and implementation of the distributed spatial database of the national common platform of territorial spatial information

国家级国土空间基础信息平台采用“1个主中心+N个分中心”的分布式架构。为实现多数据中心数据深度融合计算,本文开展了国家级国土空间基础信息平台分布式空间数据库建设前期研究,提出了基于HBase的分布式空间数据库存储架构,开发了系统原型并进行了实验验证。实验结果显示,分布式空间数据库HBase在地域分布的情况下,可以稳定高效地完成计算分析任务,网络环境如果达到4.5 Gbit/s以上,则不影响数据库集群的查询性能和计算集群的计算性能。该技术框架可有力支撑国家级国土空间基础信息平台的分布式建设模式。

The construction mode of the national common platform of territorial spatial information is the distributed architecture of "one main center + N sub-centers". In order to realize the deep data fusion computing of all data centers, this paper carries out the preliminary research on the construction of distributed database and proposes a distributed spatial database storage architecture based on HBase(Hadoop Database).The prototype is developed and verified by experiments. Experimental results show that the distributed spatial database HBase can steadily and efficiently fulfil the computing tasks under geographical distribution. And the query performance of database cluster and computing cluster have not been affected when the network of distributed spatial database HBase reaches 4.5 Gbit/s, and the query performance is obviously superior and easy to expand under high concurrency conditions. This technical framework can strongly support the distributed construction mode of the national common platform of territorial spatial information.