Resource searching method for unstructured P2P network

Abstract

The invention discloses a resource searching method for an unstructured P2P network. The method includes the steps that an identifier is distributed to each node in the network, and front-rear nodes, neighbor tables and table items of the neighbor tables of all the nodes are defined; the node which initiates a resource query request sends query information for increasing forwarding sections to a neighbor node in all the table items in the corresponding neighbor table of the node; if resources are inquired, successful searching information is sent to the node which initiates the resource query request; if inquiring fails, the neighbor nodes forward the query information for increasing forwarding sections to the neighbor nodes in a neighbor node forwarding section according to the table items in the neighbor tables of the neighbor nodes; the previous step is executed again until the resources are inquired or all the nodes have already been inquired. According to the technical scheme, the problem of redundant messages in flooding search is solved, resource searching expandability and efficiency of the unstructured P2P network are improved, and therefore the usability of the unstructured P2P network is improved.

Description

technical field [0001] The present invention relates to P2P networks. More specifically, it relates to a resource search method in an unstructured P2P network. Background technique [0002] Currently, the most popular network models of the Internet can be mainly divided into two types: C / S model and P2P model. Due to the increasing number of network users and the explosive growth of network information content, the server pressure of the C / S model is increasing, which often becomes the bottleneck of network performance, and it may be difficult to meet the growing needs of users if there is a single point of failure. At this time, P2P technology came into being and gradually became a research hotspot. P2P network is a distributed network at the application layer. Due to its characteristics of decentralization, high scalability and load balancing, it has been widely used in various fields. Among them, the unstructured P2P network is due to its simplicity. and high robustnes...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a resource search method for an unstructured P2P network, using a flooding algorithm based on forwarding intervals, so that messages are propagated along the structure of the spanning tree, and the query message reaches each node only once, which solves the problem of flooding The problem of redundant messages in search, improve the scalability and efficiency of resource search in unstructured P2P networks, thereby improving the availability of unstructured P2P networks in practice

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