Research and improvement of HDFS

Recently, cloud computing is increasingly becoming the focus of attention at home and abroad. When the big data storage is become the core of cloud computing system, cloud computing system would evolve into a cloud storage system. With rapidly development of cloud computing, cloud storage has become one of most popular research field. HDFS (Hadoop Distributed File System) has a powerful data storage capacity for cloud storage system. However, it must be improved before applied to large scale since it exists some drawbacks during the design process. This paper researches the cloud storage model based on HDFS, solves uneven replica distribution.