共享负载的流媒体代理服务器协作算法探讨

Load Sharing Coordination Algorithm of Streaming Media Proxy Server

为了提高流媒体代理服务器的IO吞吐能力 ,采用中间件技术将多台服务器粘合起来 ,形成代理缓存服务器集群是有效的解决方案 ,其中关键要解决代理服务器的协作问题 .用户请求调度的判定问题实际上属于NP完全问题 ,本文提出共享负载的流媒体代理服务器协作在线算法 ,并对在线算法与最优解的相对偏差进行讨论 .

in order to increase IO throughput capacity of streaming media proxy server,the most effective method is to adopt middle-ware technology to make several servers conglutinated and form a proxy cache server cluster. And the key is to settle collaboration. The judge of customer request is the NP completion problem. The article puts forward a streaming media proxy server of load sharing coordination on line algorithm and discusses the relative deflection of on line algorithm and best result.