A Research And Design On Files Customization System In Distributed Environment

As the rapid development of Internet, the numbers of the users who use Internet are on the exponential rise. So how to make efficient use of sharing network resources becomes a hotspot. P2P technology who makes users that are located at the edge of Internet take a more active part in the resources sharing. The problem of resources sharing will probe into the distributed computing technology.Files sharing are one of the basic forms of resources sharing. A foremost object in distributed files sharing systems is to ensure the sharing files could be dispensed rapidly and effectively. After researching on several prevalent files sharing system, aiming at above objects, we propose a improved distributed files sharing system, files customization system, under the base of user feedback, by means of controlling file cache to achieve rapid and effective dispensing of sharing files.The key technologies of the files customization system include discovering nodes, looking up files, files cache strategy, checking flux, and controlling congestion. After doing correlative analysis and research, a solution is presented. DHT arithmetic in P2P location and route technologies is used to achieve discovering nodes, while full text retrieval technology on servers is used to achieve looking up files. Propose a flux check based files Cache opportunity choosing method and Cache quantity choosing method based on Cache principle which is geographical first, the most infrequent first and the least flux first. Then discuss the congestion control in files customization system.Based on the discussion about key technologies, design a files customization system FCS in network environment. At the last, put forward some shortages in the system realization and the farther improvement steps.