A Proactive Method for Content Distribution in a Data Indexed DHT Overlay

In a data-indexed DHT overlay network, published data annotations form distributed databases. Queries are distributed to these databases in a non-uniform way. Constructing content distribution networks for popular databases is effective for addressing the skew problem. However, various crucial replication decisions such as which data object should be replicated, how many replicas should be created and what replica placement policy should be used, may affect the performance of replication based content distribution and load balancing mechanisms in the presence of non-uniform data and access distribution.