动态复制管理多媒体服务器群集的可行性分析  

Dynamic Replication Feasibility of Managing Multimedia Server Cluster Analysis

作　　者：张秋霞[1] 徐燕文[2] 

机构地区：[1]黄河科技学院现代教育技术中心,郑州450063 [2]河南中医学院信息技术学院,郑州450008

出　　处：《科技通报》2013年第10期139-142,共4页Bulletin of Science and Technology

基　　金：河南省高校青年骨干教师资助计划项目(2012GGJS-225);河南省科技攻关基金资助项目(2011C520016)

摘　　要：应用动态复制策略研究多媒体演示文档的相交子集到一个服务器集群的多个节点问题。针对复制选定的演示文档以达到负载平衡,同时避免在每个节点上整个的复制多媒体文档,提出了针对目前动态分组策略的一个开发,创建了一个可配置的选定演示文档副本的最小数,以增加其可用性。这些额外的副本以允许负载平衡的方式被分配在多个节点,使得节点失效时可以被修复。通过分拆复制,实现来自复制的负载平衡,以提高单独演示文档的可用性,控制可用性和存储成本之间的权衡。运用组通信服务对节点间通信的原型多媒体服务器集群的性能测试,实验结果证明了开发策略的有效性、可行性。Dynamic Replication Strategies for multimedia presentations intersect a subset of the multiple nodes of a cluster of servers. Copy selected presentations in order to achieve load balancing, while avoiding replication on each.node a multimedia document, put forward a development strategy for the dynamic grouping, to create a configurable minimum number of copies of selected presentations in order to increase its availability. These extra copies to allow load balancing to be assigned to multiple nodes, the node failure can be repaired. Split copy, from replication, load balancing, in order to improve the availability of a separate presentation, and control the trade-off between availability and cost of storage. Use of group communication services on the inter-node communication performance testing of the prototype multimedia server clusters, and experimental results demonstrate the effectiveness of the strategy development, feasibility.

关 键 词：动态复制 服务器集群 可用性 负载平衡 

分 类 号：TP399[自动化与计算机技术—计算机应用技术]