Research And Design Of Mobile Cloud Disk System Based On MooseFS

The development of Internet has entered into an age of cloud, and become a hot topic. Many big Internet companies at home and abroad provide nearly free high-capacity permanent storage service for users in succession, such as Microsoft, Baidu, Qihoo360, Huawei, Jinshan, etc. In recent years, the development of smart mobile terminal equipment progresses day by day, which make the mobile cloud services an inevitable trend.The purpose of this paper is to research and design a set of complete cloud disk system based on MooseFS, which is a kind of distributed file system, including three modules, namely storage service, Web service and Android client. The main content as follow.(1) In terms of storage, by studying the algorithm about load balancing in MooseFS, we proposed optimized strategy at two aspects, namely balancing the storage utilization rate and reducing the average waiting time, which reduced1.11016E-5at the former variance and0.41units (18.9%) at the later value.(2) In terms of Android client, we did some researches on file downloading, and proposed an self-adapting strategy for chunks downloading in weak network combining multi-threaded theory, which enable success downloading in poor environment.(3) Solved the problem that the gallery pictures can’t be multiple selected through the Android interface.In this system, mobile client and Web client share the same database so that reduces redundant storage of user data. The main functions include weibo account login, the batch upload of native gallery, photo upload immediately when took and weibo announced, download files from cloud disk, files share in groups, common file upload and download, etc. It has been deployed on CGSP (ChinaGrid Supporting Platform) and serve users.