一种基于分布式并行系统的流媒体数据分发系统

Design and implementation of a distributed parallel system based on streaming media distributing system

现有的p2p流媒体系统中的数据调度机制给网络带来了很大的压力,提出了一种基于分布式文件系统的调度机制,具有就近调度、站内调度客户节点、站间服务节点自调度的特点,有效降低了主干网上的数据调度。基于这种调度机制,本文以组播为例具体介绍了采用分片技术实现流媒体的数据分发。经过测试本系统数据缓冲稳定,节点更新性能较好。

The data scheduling policy in the present Peer to Peer streaming media system is a big pressure for the network. To reduce the data schedule in the backbone network, a new scheduling policy was proposed. It based on distributed system and with the main characteristic of scheduling the nearest node, scheduling the client node in a station, the automatic server node scheduling inter-stations, a multicast streaming media system was described to introduce the data distribution technology on this scheduling olicy, The test results present that the system has stable data buffer and with a good performance of node updating.