首页> 外文会议>International Workshop on Multimedia Interactive Protocols and Systems(MIPS 2004); 20041116-19; Grenoble(FR) >Using Dynamic Replication to Manage Service Availability in a Multimedia Server Cluster
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Using Dynamic Replication to Manage Service Availability in a Multimedia Server Cluster

机译:使用动态复制管理多媒体服务器群集中的服务可用性

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Dynamic replication policies assign non-disjoint subsets of multimedia presentations to nodes in a server cluster, replicating selected presentations to achieve load-balancing, while avoiding complete replication of the multimedia archive on every node. This paper presents a development of our existing Dynamic RePacking policy, which creates a configurable minimum number of replicas of selected presentations, increasing their availability. These additional replicas are assigned to nodes in a manner that allows load-balancing to be maintained when nodes fail. By separating replication to achieve load-balancing from replication to increase the availability of individual presentations, the trade-off between availability and storage cost can be controlled. This is illustrated by performance results from a prototype multimedia server cluster, which uses a group-communication service to implement inter-node communication.
机译:动态复制策略将多媒体演示文稿的不相交子集分配给服务器群集中的节点,复制选定的演示文稿以实现负载平衡,同时避免在每个节点上完全复制多媒体档案。本文介绍了现有动态重新打包策略的发展,该策略创建了所选演示文稿的可配置副本的最小数量,从而提高了其可用性。将这些其他副本分配给节点的方式可以使节点发生故障时保持负载平衡。通过分离复制以实现负载平衡与复制以增加单个演示文稿的可用性,可以控制可用性与存储成本之间的权衡。原型多媒体服务器群集的性能结果对此进行了说明,该群集服务器使用组通信服务来实现节点间通信。

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