Research of data replication protocols based on distributed system
Ming De-ting · Jisuanji gongcheng yu sheji · 2007
Data replication is playing an increasingly important role in the parallel information systems.Particularly,the wide use of cluster architectures often requires replicate data for performance and availability reasons.However,maintaining the consistency of the different replicas causes severe scalability problems.To illuminate this limitation,quorums are often suggested as a way to reduce the overall overhead of replication.Several quorum types are analyzed in order to better understand their behavior in practice.The results obtained challenge many of the assumptions behind quorums based on replication.The evaluation indicates that the conventional read-one/write-all protocol is the best choice for a large range of applications requiring data replication.