Centralized service based distributed peer-to-peer network implementing method and system

Abstract

The invention relates to a distributed peer-to-peer network based on concentration service and a construction method thereof, wherein, the method includes the following steps: (1) establishing a concentration server for the peer-to-peer network, which is used for adding the peer-to-peer network for a new node and providing service for the exit of the peer-to-peer network and defining a data structure of a B plus tree for the server so as to save the information on a dynamic and variable node; (2) adopting a new node to search a direct neighbor through a concentration server or search the direct neighbor in a virtual link from a peer node and add the direct neighbor into a peer-to-peer network ; (3) applying a boundary node (a peer node with a precursor or a successor exiting from the direct neighbor) to search a direct precursor or a successor neighbor through the concentration server or search the direct precursor or the successor neighbor in the virtual link from the node, so as to maintain ring-shaped topology among the peer nodes. The invention integrates the concentration service in the distributed peer-to-peer network, thus obviously decreasing network fluctuationdue to frequent entering or exiting of the node and greatly increasing the work efficiency of the peer-to-peer network.

Description

Technical field [0001] The invention belongs to the field of network and communication technology, and specifically relates to a method and system for implementing a distributed peer-to-peer network based on centralized services. Background technique [0002] With the continuous expansion of the network scale and the rapid growth of the number of network users, the traditional client / server model faces some difficult problems such as excessive storage load, single point of failure, and network bandwidth limitations. To solve these problems, distributed peer-to-peer network technology has been rapidly developed. Peer-to-peer network (P2P-Peer-to-Peer) is a peer-to-peer distributed network system. Shared resources are distributed among peer nodes, and resource sharing is carried out directly between peer nodes. [0003] In a peer-to-peer network, the organization method between peer nodes determines the performance of the peer-to-peer network to a large extent. The organization meth...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a distributed peer-to-peer network based on centralized services and a construction method to solve the problem of network fluctuations caused by nodes frequently joining and exiting the peer-to-peer network. It is especially suitable for large-scale peer-to-peer networks and improves peer-to-peer work efficiency

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