基于Hadoop的分布式空间索引设计与实现

With the continuous development of mapping technology, geographic information system has the rapid growth of geographic data, and the corresponding spatial data storage and processing is still more use of traditional methods, can \'t support the massive spatial data, spatial index is to deal with massive spatial data The key issue. Based on the distributed file system, this paper proposes and implements a distributed spatial index structure. The index proposed in this paper adopts hierarchical distributed index structure, which consists of global index, local index and data fragmentation. Experiments show that the distributed spatial index designed in this paper can efficiently access the massive spatial data.?????