本文關(guān)鍵詞： 云計(jì)算 Hadoop分布式文件系統(tǒng) AES算法 Linux的shell 用戶 空間文件系統(tǒng)　出處：《北方工業(yè)大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

【摘要】：研究以當(dāng)前熱門的云計(jì)算為著眼點(diǎn),首先從云的當(dāng)前的國內(nèi)外研究現(xiàn)狀出發(fā),研究了關(guān)于云存儲的一些利弊,以當(dāng)前比較成熟的開源的云平臺Hadoop的分布式文件系統(tǒng)HDFS為基礎(chǔ),詳細(xì)分析了該分布式文件系統(tǒng)的優(yōu)缺點(diǎn),然后就關(guān)于云存儲的安全性,及存儲的便捷性對于未來應(yīng)用的影響,闡述了本文研究的重要意義。 在研究中用到的重要互聯(lián)網(wǎng)相關(guān)技術(shù)部分,闡述了其中包含有云計(jì)算本身的技術(shù),關(guān)于系統(tǒng)級別的技術(shù),以及關(guān)于WEB相關(guān)的技術(shù),關(guān)于處理安全問題時(shí)用到的文件的加密和解密技術(shù),關(guān)于HDFS分布式文件系統(tǒng)的API (Application Progremming Interface,應(yīng)用編程接口)。 云存儲管理系統(tǒng)設(shè)計(jì)部分,從系統(tǒng)的功能實(shí)現(xiàn)出發(fā),闡述了該云環(huán)境數(shù)據(jù)存儲管理系統(tǒng)的設(shè)計(jì)架構(gòu)。主要分為兩部分,即普通用戶和管理員(超級用戶),普通用戶對于自己的存儲空間具有上傳文件,下載已上傳的文件,以及刪除自己存儲空間的文件的權(quán)限,以及對于自身的存儲空間在不夠用時(shí),在管理員監(jiān)管下的動態(tài)增長方案。關(guān)于管理員,是整個(gè)云存儲的管理者,監(jiān)管整個(gè)云存儲的使用情況,詳細(xì)到了各個(gè)數(shù)據(jù)節(jié)點(diǎn)的占用情況,以及查看當(dāng)前所有的用戶的存儲空間使用情況,并且可以直接刪除已經(jīng)過期或者不用的用戶,從而將存儲空間回收歸HDFS. 另外管理員可以查看分塊之后(HDFS是基于分塊存儲的備份機(jī)制的)實(shí)際的文件塊存儲在的物理機(jī)器名稱(即實(shí)際的數(shù)據(jù)節(jié)點(diǎn)的名稱),也就是文件實(shí)際所存儲的位置。對于普通用戶和管理都有基于天的統(tǒng)計(jì)信息。對普通用戶而言,統(tǒng)計(jì)用戶的上傳文件的折線圖,對于管理員則是基于天的,上傳到HDFS上的所有文件的折線圖。結(jié)果分析部分,給出了系統(tǒng)實(shí)現(xiàn)過程中對于不同大小的的文件加解密算法的效率比較,以及文件上傳到HDFS和硬盤的效率比較,并進(jìn)行了詳細(xì)的分析。 在系統(tǒng)的實(shí)現(xiàn)部分,詳細(xì)闡述了云存儲系統(tǒng)的實(shí)現(xiàn)過程。最后對云存儲進(jìn)行了展望。
[Abstract]:The research focuses on the current hot cloud computing. Firstly, from the current research situation of cloud at home and abroad, this paper studies some advantages and disadvantages of cloud storage, based on the distributed file system HDFS of Hadoop, a mature open source cloud platform. The advantages and disadvantages of the distributed file system are analyzed in detail. Then the significance of this paper is expounded on the security of cloud storage and the impact of storage convenience on future applications. The important Internet-related technologies used in the research, including cloud computing itself, system-level technologies, and WEB related technologies, are described. This paper deals with the encryption and decryption technology of files used in dealing with security problems, the API application Progremming interface of HDFS distributed file system, and the application programming interface. In the design part of cloud storage management system, from the function realization of the system, the design framework of the cloud environment data storage management system is expounded. That is, ordinary users and administrators (superusers, ordinary users have permission to upload files for their own storage space, download uploaded files, and delete files in their own storage space, And the dynamic growth scheme under the supervision of the administrator when the storage space is not enough. As for the administrator, he is the manager of the whole cloud storage, supervising the use of the whole cloud storage, The usage of each data node is detailed, and the storage space usage of all current users can be viewed, and users who have expired or not can be deleted directly, so that the storage space can be recycled to HDFSs. In addition, the administrator can view the physical machine name (that is, the name of the actual data node) stored in the actual file block (that is, the bit that the file actually stores) after the partition HDFS is based on the block storage backup mechanism. There are days-based statistics for both the average user and the administration. For the average user, Statistics user upload file line diagram, for the administrator is based on the sky, uploaded to all files on the HDFS line diagram. The efficiency comparison of different file encryption and decryption algorithms and the efficiency comparison between file upload to HDFS and hard disk in the process of system implementation are given and analyzed in detail. In the part of the system implementation, the implementation process of cloud storage system is described in detail. Finally, the prospect of cloud storage is given.
【學(xué)位授予單位】：北方工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TP333;TP309

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本文編號：1500931