Cloud storage system for small file based on P2P
Zhang Wei-dong Zhang Qi-fei · Journal of Zhejiang University(Engineering Science) · 2013
A novel distributed cloud storage system based on P2P was proposed aiming at the excessive delay problem in the distributed file system with Master/Slaver structure when manipulating the small files.The resource query time complexity was reduced to O(l) by improving the Chord routing algorithm and adding a central routing node,which stored all nodes' status and routing information.Furthermore,clients can pre-fetch the data on central routing node,so the time overhead was further reduced.A backup strategy was proposed to ensure the reliability of the data,and the replica number was 3.In this system,a serial of basic functions are implemented,such as write,read,delete,list directory,et.al..Experimental results show that the time manipulating the small size files reduces an order of magnitude compared with Hadoop HDFS.