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The paper presents a hierarchical organization of two storage redundancy schemes to improve data availability caused by churn in structured overlay networks. To mask or hide the high churn from the portion of short-lived but frequent churn peers and permanent failure peers, we use replication among the nodes in a certain interval that can be considered as a virtual node. Then a set of virtual nodes...
This paper analyzes churn impact on replicated data duration with different node lifetime distributions. In structured overlay networks, churn includes node-join churn and node-failure churn, caused by the arrival and departure of nodes separately. The paper introduces a duration model of replicated data under node-failure churn for node failure directly leads to data loss. Furthermore, it investigates...
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