基于HDFS的数据备份系统的设计与实现

摘要

文章将云存储技术应用于数据备份，设计并实现了基于分布式文件系统HDFS的数据备份系统。该系统利用云存储技术，构建廉价、可扩展的分布式集群，解决了用户数据备份/恢复的需求，通过合并压缩、加密等技术进一步提高了系统性能和安全。实验表明，该系统在安全性、可扩展性、经济性上有一定的优势。%　　This paper applied the technology of cloud storage for data backup, designed and implemented a data backup system based on the distributed file system HDFS. The system built a low-cost and scalable distributed cluster using the technology of cloud storage, and met the users’ demand of data backup/recovery. It also further improved the performance and security of the system through a combination of compression, encryption and other technologies. Experimental results showed that the system has certain advantages in the aspect of security, scalability and economy.