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随着计算机与网络技术的快速发展,网络分布式存储逐渐成为存储技术研究的重点,但对离线数据存储的研究仍是个空缺.提出一种基于封闭式P2P网络的离线数据存储系统.客户端将离线数据发送至P2P网络,网络中节点利用chord路由算法存储数据;目标用户上线后,提出查询下载请求,从系统中获取与自身相关的离线数据.为了提高离线数据存取效率,每个节点保存一张包含网络中所有节点信息的路由表,离线数据的定位通过本地查找实现;另外,对传统Chord路由算法进行改进,使其更好地适应封闭式P2P网络的离线数据存储.实验表明,在封闭式网络中进行离线数据存取可以获得高的效率.
With the rapid development of computer and network technology, networked distributed storage has gradually become the focus of storage technology research, but the research on offline data storage is still a vacancy.This paper proposes an offline data storage system based on closed P2P network.The client will Offline data is sent to the P2P network, nodes in the network use chord routing algorithm to store the data. After the target user goes online, it submits a query download request to obtain offline data related to itself from the system.In order to improve the offline data access efficiency, each node saves A routing table containing information of all the nodes in the network is obtained, and the localization of offline data is achieved through local searching. In addition, the traditional Chord routing algorithm is improved to better adapt to the off-line data storage of the closed P2P network. Experiments show that, Off-line data access in a closed network can achieve high efficiency.