Blink II: A node ranking system of DHT network using Map Reduce Framework

Nowadays, P2P network has become one of the most important technologies of Internet. Also, P2P file sharing network is now irreplaceable infrastructure for content distribution. At the same time, the network is becoming larger which resulting in that analyzing node distribution in the view of security concerns. In this paper, we propose a fast ranking system of P2P network using DHT crawler and Map Reduce Framework. Proposed system enables us to gathering IP addresses on DHT network and ranking nodes according to the output of Map Reduce Frame work counting the frequency of nodes in countries and cities. We can succeed to detect 1,000,000 IP addresses in 24 hours, making ranking and visualizing the spread of crawling range.