A Peer-to-Peer Based Spatial Data Manipulating and Distributing Technology
Ma Xiujun · Geography and Geo-Information Science · 2006
Peer-to-peer(P2P)computing has triggered extensive research on distributed computing.This paper presents a P2P based distributed cooperative computing technology and a prototype system implementation,which facilitates complex spatial application by collaborating spatial data resources distributed in different peers.The system can parse a spatial query and dynamically select best quality peers to execute the query.Peers coordinate to finish the query based on P2P message exchange and a transaction mechanism.Compared to centralized ones,the dynamical execution control performed in a P2P fashion has several benefits,such as avoiding network congestion and single point of failure,so to improve the availability and reliability of spatial data resources and computational resources.