CN104580395A - Multi-cloud cooperative storage middleware system based on existing cloud storage platform - Google Patents
Multi-cloud cooperative storage middleware system based on existing cloud storage platform Download PDFInfo
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- CN104580395A CN104580395A CN201410801410.6A CN201410801410A CN104580395A CN 104580395 A CN104580395 A CN 104580395A CN 201410801410 A CN201410801410 A CN 201410801410A CN 104580395 A CN104580395 A CN 104580395A
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- H—ELECTRICITY
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- H04L67/01—Protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
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Abstract
The invention relates to the technical field of cloud storage and in particular discloses a multi-cloud cooperative storage middleware system based on an existing cloud storage platform. The multi-cloud cooperative storage middleware system comprises a client terminal and a metadata server, wherein the client terminal is connected to a cloud platform through a network and is used for authenticating users, fragmenting and distributing files, operating and managing files, distributing data, restoring fault of data, encrypting and decrypting data; the metadata server is connected to the client terminal and is used for authenticating accounts and storing a file organization directory tree, a data encrypting key and a user operation log. The multi-cloud cooperative storage middleware system is used for cooperatively storing by using the existing multiple cloud storage platforms; through comprehensive consideration of multi-cloud storage resource and network service quality, a user data self-adaption distribution and integration algorithm is disclosed; an information security safeguard mechanism with separable data storage, data management and user visit is disclosed; a data fragmentation storage and key management method based on the metadata server is provided; the problem of leakage of the cloud storage data is solved.
Description
Technical field
The present invention relates to cloud technical field of memory, specifically a kind of cloudy collaborative Storage Middleware Applying system based on existing cloud storage platform.
Background technology
Along with the development of cloud computing technology, when computer and mobile client update rapidly, cloud stores becomes the first-selection that the network user stores data gradually.Tengxun's thin cloud, Baidu's cloud dish, 360 cloud Pan Dengduojia manufacturers release oneself independently distributed cloud storage system at home.
In information age today, the user of cloud storage products can only select a wherein platform to carry out depositing of data.Single cloud storage platform is all to control completely and manage by concrete service provider, and the serviced provider of user data controls to bring a lot of problems completely.At present, user has in use encountered following four problems:
Problem one, data reliability cannot be ensured, single cloud storage platform is that a manufacturer carries out independent maintenance, user is by deposit data to storage platform, if cloud storage platform occurs that loss of data or system mistake all can cause the loss of data, the reliability of data cannot reach maximum guarantee;
The access of problem two, data cannot reach shortest time, data are stored in a fixing storage provider, and the network service of user is relevant with region, and if the network of service provider cannot perfect matching, access speed can be caused excessively slow, and the network service quality of user can obviously decline;
Problem three, cloud storage service provider are easily to data monopolization, and storage of subscriber data, to single cloud storage platform, is easily controlled to form monopolization by cloud storage provider completely, and in storage paying, user cannot protect the legitimate rights and interests of self;
The personal secrets of problem four, data cannot be protected; data are stored into cloud storage platform; the super keeper of cloud storage service provider cloud platform has permission and checks all platform datas, and user data exists by the possibility of spying on completely, and the data-privacy of user cannot ensure.
Summary of the invention
The present invention seeks to the efficient cloudy collaborative Storage Middleware Applying system of proposition one, to solve the practical problem existed in the above-mentioned prior art mentioned.
Technical scheme of the present invention is: a kind of cloudy collaborative Storage Middleware Applying system based on existing cloud storage platform, comprising: the burst for user authentication, file be connected with cloud platform by network is distributed, the operation of file and management, the distribution of data, the fault recovery of data and data encrypting and deciphering client; Also comprise the meta data server with the setting for account authentication, storage file organization directory of described client's side link, data encryption key and User operation log.
Above-mentioned client comprises the authentication ' unit for user authentication, for the file fragmentation unit of the burst that is averaged to file according to file fragmentation size requirements, for the ratio of the network service quality according to different cloud platform, data block is distributed to the file distributing unit of different cloud storage platforms, for the data operating units of data to the upload and download of cloud platform, for the data encrypting and deciphering unit of the encryption and decryption of data and do not meet the data block of data integrity for Timeliness coverage and this data block be replaced with in time the data fault recovery unit of effective data block.
Above-mentioned authentication ' unit comprises for the part to meta data server certification and the part for carrying out certification to the cloud platform used.
Above-mentioned cloud platform is used for the store and management of data, and be the storage platform of whole storage system, described cloud platform is at least made up of three storage platforms.
The above-mentioned meta data server authentication request comprised for initiating client carry out certification with confirm identity legitimacy account authentication unit, be responsible for file and folder organization structure category is set and the data storage cell of the storage in data block Storage Mapping path and the storage of encryption and decryption key and for the log unit of recording user at all operations of meta data server.
Beneficial effect of the present invention: cloudy collaborative storage platform is based on any distributed cloud storage platform of main flow both at home and abroad; guarantee data that can be effective reliable; realize the fast access of data, avoid the monopolization of cloud storage service provider, the data-privacy of protection user.The cloudy collaborative Storage Middleware Applying system based on data fragmentation that the present invention proposes, existing multiple cloud storage platform is utilized to carry out collaborative storage, consider cloudy storage resources and network service quality, propose the distribution of user data self adaptation and integration algorithm, propose data access and data management, user and access the security assurance information mechanism be separated, the data fragmentation given based on meta data server stores and key management method, overcomes the problem that cloud stores leaking data.
Below with reference to accompanying drawing, the present invention is described in further details.
Accompanying drawing explanation
Fig. 1 is the foundation frame composition of cloudy collaborative Storage Middleware Applying system of the present invention;
Fig. 2 is the workflow of cloudy collaborative Storage Middleware Applying system of the present invention;
Fig. 3 is the work request data flow of cloudy collaborative Storage Middleware Applying system of the present invention;
Fig. 4 is the functional block diagram of cloudy collaborative Storage Middleware Applying system of the present invention;
Fig. 5 is the meta data server network topological diagram of cloudy collaborative Storage Middleware Applying system of the present invention;
Fig. 6 is the meta data server critical data list structure figure of cloudy collaborative Storage Middleware Applying system of the present invention;
Fig. 7 is the directory tree structure figure of cloudy collaborative Storage Middleware Applying system of the present invention;
Fig. 8 is the file distributing flow chart of cloudy collaborative Storage Middleware Applying system of the present invention;
Fig. 9 is the integrating documents flow chart of cloudy collaborative Storage Middleware Applying system of the present invention.
Embodiment
Fig. 1 is the foundation frame composition of cloudy collaborative Storage Middleware Applying system of the present invention.A kind of cloudy collaborative Storage Middleware Applying system based on existing cloud storage platform as shown in Figure 1, comprising: the burst for user authentication, file be connected with cloud platform by network is distributed, the operation of file and management, the distribution of data, the fault recovery of data and data encrypting and deciphering client; Also comprise the meta data server with the setting for account authentication, storage file organization directory of described client's side link, data encryption key and User operation log.Described cloud platform is used for the store and management of data, and be the storage platform of whole storage system, described cloud platform is at least made up of three storage platforms.Whole storage system comprises three modules, is client, meta data server and cloud platform respectively.Cloudy collaborative Storage Middleware Applying system is the core of storage system, is made up of client and meta data server.Client comprises the authentication ' unit for user authentication, for the file fragmentation unit of the burst that is averaged to file according to file fragmentation size requirements, for the ratio of the network service quality according to different cloud platform, data block is distributed to the file distributing unit of different cloud storage platforms, for the data operating units of data to the upload and download of cloud platform, for the data encrypting and deciphering unit of the encryption and decryption of data and do not meet the data block of data integrity for Timeliness coverage and this data block be replaced with in time these six unit of data fault recovery unit of effective data block.Wherein authentication ' unit comprises two parts, is for the part to meta data server certification and the part for carrying out certification to the cloud platform used respectively.
Fig. 2 is the workflow of cloudy collaborative Storage Middleware Applying system of the present invention.As shown in Figure 2, terminal installs a client, client provides all mutual of user and carries out data exchange with meta data server, distributed cloud storage platform.The meta data server authentication request comprised for initiating client carry out certification with confirm identity legitimacy account authentication unit, be responsible for file and folder organization structure category is set and the data storage cell of the storage in data block Storage Mapping path and the storage of encryption and decryption key and for recording user these three unit of log unit at all operations of meta data server; The main function of meta data server manages metadatabase and metadata standard and operate; Preserve the key of user; Metadata standard etc. is imported in metadatabase.The distributed cloud storage platform in rear end, this middleware system adopts based on domestic main flow storage platform, and such as Tengxun's thin cloud, Baidu's cloud dish, 360 cloud dishes etc., function, mainly based on cloud dish, provides the store and management of data.
Number in the figure 1-5 is that next the process of system is specifically introduced.
Step 1) user logs in.User can be allowed after client terminal start-up to carry out login authentication.After user account is proved to be successful, a certification mark id can be distributed to user, prove that user is the user of normal legal.The user logined successfully has the right to obtain all related datas that user is kept at meta data server, comprises file structure and file metadata map information.Meta data server maintains normal a set of user's system.
Step 2) obtain the data such as listed files and metadata.After client logs success, there are all metadata affiliated under obtaining this user.Client can propose the list of user's all files, metadata and encoded cipher data synchronization request to meta data server, and data all under user are sent to client according to user ID by metadata server cluster.Client obtains listed files can show user with tree-like form, all institutional frameworks allowing user check to store in cloud platform and file data.
Step 3) configuration cloud platform account.Account in the first step is the account of metadata server cluster, and such storage organization structure that advantage is exactly data and metadata and concrete data manipulation of realizing is separated.Shown in figure, need the account configuring multiple cloud platform respectively herein, after configuration successful, client just has the storage operation authority to above cloud dish.
Step 4) data upload and management.Client can operate accordingly according to the clicking operation of user, such as file operation, deletion, rename etc.Configure the account of cloud platform, all API that client can use cloud storage platform to provide.The data of user are undertaken by this step, and uploading of data is the key of whole system, and while data upload, the membership credentials of file and mapping relations can be uploaded to meta data server by client.The operational order of All Files is also all undertaken by this step, achieves the management of file.
The download of step 5) file and date restoring.User directly can obtain from cloud platform the authorized any file existed.Also be by this step when system obtains file status, namely file status display normally indicates that data block is effective, if file status is made mistakes, indicates that data block is damaged, needs to carry out date restoring integrating step 4) jointly complete.
Fig. 3 is the work request data flow of cloudy collaborative Storage Middleware Applying system of the present invention.As shown in Figure 3, the arrow in figure and word represent data flow between each module and concrete function.Meta data server stores metadata and the Operation Log of user, the institutional framework of concrete data block.Multiple cloud platform just stores concrete data block, can not observe be fragmented before complete file.Client will realize Certificate Authority, comprises meta data server mandate and cloud platform operations permission grant, the uploading of metadata, downloads, the burst distribution of file, the uploading, download and manage of data block.
Fig. 4 is the functional block diagram of cloudy collaborative Storage Middleware Applying system of the present invention.As shown in Figure 4, all unit comprised under illustrating module.
Fig. 5 is the meta data server network topological diagram of cloudy collaborative Storage Middleware Applying system of the present invention.As shown in Figure 5, whole meta data server make use of LVS load balancing framework, has carried out the real-time synchronization of data in addition, has carried out redundancy backup to metadata, always have three parts between Server1, Server2, Server3.As long as one of them server normally works, the metadata that just can ensure user can be used, if finger daemon metadata of running Server1 server internal breaks down can carry out request of data to next Server2, directory tree is re-created and recovers normal condition with the fastest time.
Meta data server is made up of the server S erver1 of three same environment, Server2, Server3, each server has a whole set of account authentication, metadata and log system.After use LVS load dispatcher, first each server likely receives the request of data of user.Here the real-time synchronization of three station servers will be ensured.User's request msg upload to wherein one be assumed to be Server1, the life span of data is set to 2, after data are passed to Server2 by Server1, life span reduces 1, Server2 sends the data to Server3, life span is reduced to 0, in whole cluster, data complete synchronously, ensure that the data consistency between server.
Fig. 6 is the meta data server critical data list structure figure of cloudy collaborative Storage Middleware Applying system of the present invention.As shown in Figure 6, bibliographic structure table is the institutional framework representing All Files folder and file under user.There is the Root node of an acquiescence in each user, but it does not have father node.All nodes successively recurrence go deep into, until node is file or folder is empty.Total number of files table, records the total number after file fragmentation, and wherein node name is one and traverses the path of this node from Root always, ensure that the unique of node name.If total number is N, then block sequence number is 0,1,2,3N-1.Each blocks of files first time default version number is 1.Filename, block sequence number and version number illustrate a blocks of data block jointly.The particular location of the data storage location table record sequence number of blocks of files, version number and storage, its interior joint is one and traverses the path of this file from Root always, two memory locations are only had to be because system stores, so each data block stores two parts as adopting a copy redundancy when backstage at three cloud platforms at present herein.System can set up complete directory tree according to database information by for each user, and carry out changing all data can be sent to server in user's later stage, server can be changed accordingly and store.Database can be static the data of all catalogues of storage, User Catalog data also can be cached in internal memory simultaneously, can accelerate the access of user to directory tree and Data Position.
Fig. 7 is the directory tree structure figure of cloudy collaborative Storage Middleware Applying system of the present invention.As shown in Figure 7, each user generates a corresponding directory tree at meta data server.
Fig. 8 is the file distributing flow chart of cloudy collaborative Storage Middleware Applying system of the present invention.As shown in Figure 8, be the file distributing flow chart of cloudy collaborative Storage Middleware Applying system.Be now based on three cloud platforms, be respectively cloud platform 1, cloud platform 2 and cloud platform 3.To be file size round up divided by the result that rounds of 64M for the blocks of files number of each file fragmentation, and be set to N, order is 0 to N-1.From 0, every four contiguous file blocks (also needing to add the excessive datas such as version number, authorization information, sequence number) are one group and carry out file distributing.
Step 1: detection three cloud platforms network service quality, according to network speed speed be divided into excellent in differ from three ranks;
Step 2: set i=0 as distribution block number, N is file total block data;
Step 3: judge whether i+3 is less than N, if be less than N to continue next step, otherwise forwards step 6 to;
Step 4: will according to network service quality, in excellent middle difference, distributing data block is i, i+1, i+2 respectively; I, i+1, i+3; I+2, i+3;
Step 5:i=i+4, forwards step 3 to;
Step 6: judge whether N-i equals 1, if equal to continue next step, otherwise forwards step 8 to;
Step 7: will according to network service quality, in excellent middle difference, distributing data block is i respectively; I; I;
Step 8: judge whether N-i equals 2, if equal to continue next step, otherwise forwards step 10 to;
Step 9: will according to network service quality, in excellent middle difference, distributing data block is i, i+1 respectively; I; I+1;
Step 10: judge whether N-i equals 3, if equal to continue next step, otherwise forwards step 12 to;
Step 11: will according to network service quality, in excellent middle difference, distributing data block is i, i+1 respectively; I, i+1, i+2; I, i+2;
Step 12: the information that stored by Data dissemination is sent to meta data server and stores; So far, this process all terminates.
Fig. 9 is the integrating documents flow chart of cloudy collaborative Storage Middleware Applying system of the present invention.As shown in Figure 9, be cloudy collaborative storage system and integrate flow process.File full detail can be obtained from meta data server obtain the file download order of user in client after, comprise the positional information that total block data and each block store in cloud platform, and service detection is carried out to the network service quality of three cloud platforms, be divided into excellent middle poor grade.
Step 1: obtain file full detail from meta data server, comprises the positional information that total block data and each block store in cloud platform;
Step 2: detection cloud platform network service quality, is divided into excellent middle poor Three Estate;
Step 3: set N as file total block data, i=0 is download file block number;
Step 4: judge whether i+3 is less than N, if continue next step, otherwise forward step 7 to;
Step 5: download two pieces from the excellent platform of network, be set to i, i+1; From network, difference platform downloads i+2, i+3 blocks of data respectively;
Step 6:i=i+4, forwards step 4 to;
Step 7: judge N-i=1, if continue next step, otherwise forwards step 9 to;
Step 8: download one piece of I from the excellent platform of network;
Step 9: judge N-i=2, if continue next step, otherwise forwards step 9 to;
Step 10: download i respectively from the excellent middle platform of network; I+1;
Step 11: judge N-i=3, if continue next step, otherwise forwards step 9 to;
Step 12: download i respectively, i+1 from the excellent middle platform of network; I+2;
Step 13: the name of file is modified as original name; So far this process all terminates.
To sum up, cloudy collaborative storage platform is based on any both at home and abroad distributed cloud storage platform of main flow, guarantee data that can be effective reliable, realizes the fast access of data, avoids the monopolization of cloud storage service provider, the data-privacy of protection user.The cloudy collaborative Storage Middleware Applying system based on data fragmentation that the present invention proposes, existing multiple cloud storage platform is utilized to carry out collaborative storage, consider cloudy storage resources and network service quality, propose the distribution of user data self adaptation and integration algorithm, propose data access and data management, user and access the security assurance information mechanism be separated, the data fragmentation given based on meta data server stores and key management method, overcomes the problem that cloud stores leaking data.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, to those skilled in the art, the present invention can have various change and change.All do within spirit of the present invention and principle any amendment, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.More than exemplifying is only illustrate of the present invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.
Claims (5)
1., based on a cloudy collaborative Storage Middleware Applying system for existing cloud storage platform, it is characterized in that: comprising:
The burst for user authentication, file be connected with cloud platform by network is distributed, the operation of file and management, the distribution of data, the fault recovery of data and data encrypting and deciphering client;
Also comprise the meta data server with the setting for account authentication, storage file organization directory of described client's side link, data encryption key and User operation log.
2. according to a kind of cloudy collaborative Storage Middleware Applying system based on existing cloud storage platform described in claim 1, it is characterized in that: described client comprises the authentication ' unit for user authentication, for the file fragmentation unit of the burst that is averaged to file according to file fragmentation size requirements, for the ratio of the network service quality according to different cloud platform, data block is distributed to the file distributing unit of different storage platforms, for the data operating units of data to the upload and download of cloud platform, for the data encrypting and deciphering unit of the encryption and decryption of data and do not meet the data block of data integrity for Timeliness coverage and this data block be replaced with in time the data fault recovery unit of effective data block.
3. according to a kind of cloudy collaborative Storage Middleware Applying system based on existing cloud storage platform described in claim 2, it is characterized in that: described authentication ' unit comprises for the part to meta data server certification and the part for carrying out certification to the cloud platform used.
4. a kind of cloudy collaborative Storage Middleware Applying system based on existing cloud storage platform according to claim 1 or 2, it is characterized in that: described cloud platform is used for the store and management of data, be the storage platform of whole storage system, described cloud platform is at least made up of three storage platforms.
5., according to a kind of cloudy collaborative Storage Middleware Applying system based on existing cloud storage platform described in claim 1, it is characterized in that: the described meta data server authentication request comprised for initiating client carry out certification with confirm identity legitimacy account authentication unit, be responsible for file and folder organization structure category is set and the data storage cell of the storage in data block Storage Mapping path and the storage of encryption and decryption key and for the log unit of recording user at all operations of meta data server.
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| CN105898356A (en) * | 2015-12-15 | 2016-08-24 | 乐视网信息技术（北京）股份有限公司 | Live video streaming media recording method and system |
| CN106506668A (en) * | 2016-11-23 | 2017-03-15 | 山东浪潮云服务信息科技有限公司 | A kind of method that object storage is realized based on distributed storage |
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