Abstract
With the continued growth of social network users, nearly all the OSN (Online Social Network) providers replicate users’ data to different server nodes in order to ensure high reliability. Unlike traditional web applications, OSN represents a different class of data system that most of the data is based on friend relationship. In this paper, we propose OSL (Online Social Locality) algorithm, an online optimized strategy of data replicas based on social locality. This algorithm can decide the server node the replicas should be saved, and it improves system performance significantly.
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