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This paper overviews a distributed database system based on peer-to-peer model, which combines the advantages of P2P network to improve and expand the traditional distributed database system structure. It focuses on the study of such aspects as transaction commitment protocol, data communication method and additional trigger conflict resolution to complete the P2PDDB system structure.
Based on the concurrent communication tree model, considering the network node communication capability and the communication weights between nodes, according to the importance of the number of node joints (NNJ) and communication weights, this paper proposes the weight first (WFI) communication tree algorithm and the NNJ first (JFI) communication tree algorithm respectively. The results, compared...
Based on P2P communication mode, a practical communication optimization algorithm called branch first (BFI) communication tree algorithm is proposed. The basic idea of the algorithm is to introduce a concurrent communication mechanism, and to assign proper communication task to all nodes according to the communication weight between nodes in order to shorten communication time. In addition, the algorithm...
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