Research On Scheduling Strategy Of Teaching Resources Based On Grid

With the rapid development of information technology, many colleges and universitiesteaching resources to flourish, especially audio/video teaching resources and these resourcesgeographically is distributed, heterogeneous. They are in multistage network interconnection,forming a huge resource pool. However, due to the Internet isomerism that lead to networkresources cannot fully sharing, the traditional campus network structure also makes educationresources is difficult to share. And almost all of the education resources are using C/S servicemode, in the face of large-scale users access to make, the server will face huge load pressure,it is difficult to guarantee the quality of service. In order to solve the teaching resourcessharing and teaching resources distribution of the problems existing in the service, this paperputs forward the teaching based on Teaching Resources Based On Grid.The grid technology is sharing resources as the main characteristics of the nextgeneration Internet technology. Using the grid technology, people does not need take contactto the servers, storage systems and network together. Realizing the geographical distributionof a lot of heterogeneous resources sharing and distributed cooperation. At the same time forlarge-scale teaching resources distribution Service demand, provides the high expansibilityand QoS (Quality of Service, Quality of Service) security teaching resources distributionService, has become the most urgent requirements. Based on the idea of grid, mainly forvideo teaching resources scheduling,the content distribution network and P2P effectivecombination of the scheduling strategy, effectively solve the traditional video resourcescheduling algorithm bandwidth utilization ratio is low, the response time is long and theproblem of shortage of poor scalability.Based on the traditional EdgeCache Server and source Server resource schedulingstrategy,its resources have not fully utilized, and then put forward based on proxy cacheServer belongs to a type of flow media file customer interest degree to decide whether thesource Server push teaching resources. At the same time also to EdgeCache Server cacheteaching resources availability ranking, to decide the cache update, so that the entire contentdistribution network resources has made full use of, the whole system performance has beengreatly improved. Meanwhile, for existing in the Chord algorithm of each node there was a big difference, there are a lot of ability is weak nodes may become the bottleneck of thatsystem, at the same time to join and exit node frequently caused by network fluctuation willgreatly increase the cost of maintenance. So this paper puts forward three layer uniform areaP2P network system structure, effectively avoid P2P network nodes frequently join or leave toP2P network performance caused by the serious influence. At the same time it can effectivelydetect anomaly exit node and take corresponding strategies for processing, making whole P2Pnetwork stability and performance was assured.