P2P系统中降低错误相关性的方法

Decreasing Failures Correlation in Peer-to-Peer Systems

目前许多P2P网络存储系统都采用了mn容错机制来提高系统的可用性和可靠性,但是在实际应用中,服务器之间发生相关错误会导致这种容错机制具有低容错率.针对这种问题,描述了一种在P2P系统中寻找低错误相关的服务器节点集合的方法,mn容错机制可以通过使用此集合中的服务器节点来提高其容错率,从而使得系统具有高可用性和可靠性,并对此方法进行了实验分析,验证了方法实用有效.

m of n fault tolerance techniques are used to increase availability and reliability in many P2P network storage systems, but in practice correlated failures among servers will lead to low tolerance rate of those techniques. Presented in this paper is an approach to discover sets of server nodes that fail with low correlation, m of n fault tolerance techniques can be increased by using these independently failing server nodes. The approach is discussed in detail and a preliminary evaluation is provided, which shows that the approach is practical and effective.