A Study on Video-on-Demand Server for e-Learning

• Main Authors: Tzung-Wen Liao, 廖宗文
• Other Authors: Horng-Twu Liaw
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/87833468408923196846

碩士 === 世新大學 === 資訊管理學研究所(含碩專班) === 98 === As the Internet developed, how to make video-on-demand(VOD) service without interruption to become an important topic. This paper purpose to design a fault-tolerant ability of clustering server, and to balance the loading of each MP4 VOD servers without down-time limitation, when a user has the same video needs, it can play video directly through the cache server will no longer need to send through the MP4 VOD server, which can save the bandwidth of the inquiries servers without going through the Streaming Proxy as the traditional way and cut down the budget of general maintenance. In this paper, respectively, aim to load-balancing servers, and MP4 VOD server to introduce appropriate mechanisms for fault-tolerant, in this mechanism, the "redundant of load-balancing Server", when the load-balancing servers can not service, start redundant of load-balancing servers and the service will failover to redundant of load-balancing servers, to achieve the on-demand video services are not interrupted. In addition, the thesis for the MP4 VOD servers, use sharing-disk to reduce the respective costs of the maintenance cost of the media, and through the video popularity analysis of streaming proxy server, to avoid the wasteful use of space, full use of disk space, and the levels in accordance with popular video, different grades of film placed in different levels above the disk.