| With the rapid popularization and technology matures of the Internet, more and more Internet service is rapidly emerging. Storage has become the first problem to be resolved. The network proxy service is typical of public service, one has to keep the trend of the evolution of centralized services. The new business data in this environment with TB speed growth each day, and the local store model is no longer adapt. It needs a new storage model, to provide efficient storage and retrieval performance and good scalability.The system architecture for this proxy service environment has not yet appeared.Therefore, this paper on the current situation has developed a new type of proxy service-oriented distributed file system to resolve the current issues of proxy data storage.Firstly, this paper presents the overall architecture of distributed systems, and according to the characteristics of proxy service, design and realize the distributed system communication protocal. This protocol supports nods’s automatical adding when expanding the capacity and the cluster node recovery when node exits abnormally which is caused by misfunction.Secondly, this paper designs and implements the overrall functions of the distributed file system. In this course this paper details global namespace management module, data management module and load balance module.The key technology breakthrough as follows:multi-NameServer nodes’ global namespace management mechanism, the quick file orientation and retrieval technology, hot point real-time load balance mechanism and efficient failure copy replacement strategy. Among them, put forward the mechanism of file orientation to O(1) time complexity.Finally, through the function test and performance testing to verify the effectiveness of the distributed file system of proxy services.In conclusion, this paper puts forward the proxy services oriented distributed file system, which can effectively solve the proxy data distributed storage problem. |
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