融合区块链和Rsync的边缘节点数据同步

Data synchronization of edge nodes based on blockchain and Rsync

在边缘计算的场景下,不同安全域下的边缘节点的应用往往只为区域内用户提供服务,智能应用的模型参数,用户缓存的数据等保存在本地边缘节点。当用户的地理位置或者网络连接发生变化时,业务的连续性无法保障。为提高边缘节点数据同步效率和安全可控性,提出了融合区块链和Rsync的可信数据同步机制。基于Rsync算法实现跨域边缘节点之间的数据同步,避免同步过程传输冗余数据,实现一对多数据同步和可视化控制,提高了边缘网络资源的利用率。基于区块链实现数据同步监控与溯源,将服务接口调用日志和数据同步信息存储至区块链中进行溯源,提高跨域边缘节点之间数据同步的安全性和可靠性。实验结果表明,该数据同步机制同BTS-PD相比在增量同步和小文件全量同步中更有效。

In the scene of edge computing,the applications of edge nodes in different security domains only provide services for users in the region.The model parameters of intelligent applications and the data cached by users are stored in the local edge nodes.When the user′s geographical location or network connection changes,business continuity cannot be guaranteed.In order to improve the efficiency and security controllability of edge node data synchronization,a trusted data synchronization mechanism based on blockchain and Rsync is proposed.Based on Rsync algorithm,data synchronization between cross domain edge nodes is realized to avoid redundant data transmission in synchronization process,realize one to many data synchronization and visual control,and improve the utilization of edge network resources.Data synchronization monitoring and traceability are realized based on blockchain,and service interface call logs and data synchronization information are stored in blockchain for traceability,so as to improve the security and reliability of data synchronization between cross domain edge nodes.Experimental results show that the data synchronization mechanism is more effective in incremental synchronization and full synchronization of small files than BTS-PD.