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Design And Analysis Of Digital Archives Storage System Based On FastDFS Architecture

Posted on:2018-09-28Degree:MasterType:Thesis
Country:ChinaCandidate:C J ZhuFull Text:PDF
GTID:2428330623950617Subject:Computer technology
Abstract/Summary:PDF Full Text Request
Digital file With the rapid popularization and development of the Internet,the total amount of information showing explosive growth,digital archives,audio files and even high-definition video files more and more users in the user access to the file at the same time,in the face of accumulated mass File files,if the lack of a sound file storage facilities,digital archives work will be severely constrained and developed.The distributed file system brings the dawn to the mass file storage,but how to effectively manage the massive files in the distributed file system is often the subject of many distributed file systems.Most of the distributed file systems on the market today are too costly to establish,and there are many distributed file systems that may be overloaded by several data servers,which can affect the overall file access efficiency.In view of the above problems,this paper presents a design scheme of digital archives storage system based on FastDFS architecture.It has a high degree of ductility and can easily expand the capacity to meet the increasing demand of storage capacity.The experimental results also demonstrate that the file storage system designed in this paper has a good access efficiency,and by detecting the access efficiency module,the file storage system can significantly reduce the overall access efficiency when the file server load is too high Bring the impact.Specifically include:1?FastDFS faced with large file access operation when the delay required for a sharp rise,Storage Server load is too high,the overall system access to the problem of low efficiency of the file.Through the large file block,take multiple copies of the storage method will be completely dispersed in the storage of multiple storage servers,read the file when the system will have each file from the Storage Server at the same time to obtain different file blocks.When the collection of all the files after the file,and then re-operation of the file,thereby improving the efficiency of the overall file read.2?The efficiency of the detection module is designed,because the system at the same time by multiple Storage Server to obtain the file block,the file must be waiting for all the file block transfer is completed before the file merge and file access operation.The demand for remote storage for these Storage Servers may be distributed across different regional networks.If some storage servers are slow to transfer files due to unstable network conditions or too high system load,the entire file merge restore operation Storage efficiency is poor and the overall system efficiency is reduced.Therefore,the efficiency detection module will take the initiative to detect the load of the storage server during the file access process,pass over the overloaded storage server,and access from the storage server with higher efficiency Operation to achieve the goal of maintaining the efficiency of overall file access when certain Storage Server loads are high.
Keywords/Search Tags:digital archives, storage, distributed file system, FastDFS
PDF Full Text Request
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