LCrawler: An enhanced measurement tool for Peer-to-Peer content sharing networks

During recent years, Peer-to-Peer (P2P) Content Sharing Networks (CSNs) have intrigued researchers to measure and analyze them for the dominant proportion of P2P traffic volume and wide applications of the sharing platform. However, to the best of our knowledge, most of the measurement tools have not been updated under the current situations of P2P CSNs. In this paper, we develop an enhanced measurement tool named LCrawler with a versatile and cyclic framework during a longest ever measurement on Kad lasting for three years. The continuous experiments and further analysis indicate that LCrawler can obtain complete snapshots of P2P CSNs with a higher efficiency by adopting the optimized and adjustable crawling algorithm and strategy.