CN101605148A - The framework method of the parallel system of cloud storage - Google Patents
The framework method of the parallel system of cloud storage Download PDFInfo
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- CN101605148A CN101605148A CNA2009101432459A CN200910143245A CN101605148A CN 101605148 A CN101605148 A CN 101605148A CN A2009101432459 A CNA2009101432459 A CN A2009101432459A CN 200910143245 A CN200910143245 A CN 200910143245A CN 101605148 A CN101605148 A CN 101605148A
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Abstract
Main feature of the present invention: (1) has founded the cover technical scheme that breaks the whole up into parts novel, the network centralized storageization, that is: before the storage, program is decomposed into a plurality of daughters to a mother file, is referred to as data element, as the minimum unit of storage; (2) with cloud battle array memory technology, replace existing network centralized storage method, a cloud battle array is made up of the multiserver of special numbering setting, sets up the data element access relationships corresponding with server by numbering, original is decomposed into data element is stored in Yun Zhen respectively; (3) the data element access is with the multi-process parallel mode, and a process is carried out the access of a data element, and N data element then has N process to carry out its access, and is parallel because of its process, can improve access speed; (4) data element palpus ciphered compressed, original password mustn't be preserved; (5) server OS is Unix.The present invention can solve cloud storage data security problem effectively, and cloud storage architecture and application and development are had important value.
Description
Technical field
The present invention relates to a kind of network store system, particularly a kind of framework method of the computer documents network store system based on the Internet.
Background technology
The cloud storage is that the client application software on the Internet combines with Center Storage Server, realizes the service of memory device by its application software.
Along with the broadband internet development, the market of cloud storage forms, and relates to huge social and economic interests, sets up the cloud storage system and has strict requirement---safety, at a high speed, reliable, available, wherein important with information security, be to develop the bottleneck that the cloud storage must break through at present.
The client is stored in important file on the Internet on the storage server, and what worry most is the safety of file, may be stolen even is distorted, and worries that also file is illegally intercepted in transmitting on the net.
The storage of development cloud, at first should set up cloud storage system framework method safe, reliable, available, at a high speed, should evade security risk from technical method, that guarantees to store is safe, reliable, available, at a high speed, remove the worry of client to fail safe, this is the most the key link that develops the cloud storage at present.
Existing cloud storage needs to rely on following technology:
(1) development of broadband network;
(2) WEB2.0 technology;
(3) development of cloud storage application software;
(4) server stores technology, server cluster technology, grid and distributed file system;
(5) CDN content distribution, P2P technology, data compression technique, data de-duplication technology, data encryption technology.
In a word, the center of gravity of cloud memory technology scheme is on the centralized storage framework layer at present, promptly, server and storage architecture, the file information security problem at the client worries mainly relies on data encryption technology, after the encrypted compression of file, be kept on the central storage device, and about problems such as the fail safe of cloud storage, reliability, availability, speed, still can not allow customer trust.
Summary of the invention
The purpose of this invention is to provide a kind of and existing cloud memory technology scheme and compare, have more convincingness, safer, reliable, available, cloud memory technology scheme at a high speed on the storage system framework method.
Design concept:
Solve the difficult problem of current cloud storage, can not be only emphasis side in the improvement of centralized storage framework, must change thinking, learn from technical method and set about, comprise three parts such as processing method, internet transmission method and centralized storage method of cloud storage client application software.
Here so-called technical method is learned on the method for the system architecture that is meant storage should use for reference human nerve's network operation " framework ".
Human nerve's network is the intelligence architecture of an efficient parallel operation, comprises three layers such as a year nervous centralis (brain), nerve fibre conduction, peripheral nerve and end and human brain memory etc.
Also just say the cloud memory technology scheme that the neural net characteristics are dissolved into, should have three key elements at least:
1, the parallel storage of central multiserver---imitate brain memory on the method, make up neural net cloud storage central computer brain;
2, the Internet parallel transmission---imitation nerve conduction fiber parallel transmission;
3, the parallel and central stratum opening relationships of the multi-process of client application software (thread).
All cloud memory technology schemes with above-mentioned three conditions can be described as the cloud storage of neural net.
Self-defined term:
Yun Zhen---refer to a kind of on the internet have enough bandwidth supports, formed one group of parallel storage hardware and software environment by 8 and above server storage device at least with independent IP address.This environment and cloud storage client application software close cooperation with the multinode parallel schema, realize the operation of the file access of cloud storage application software.A cloud battle array on a small scale, server storage device have the 8-16 platform at least, an extensive cloud battle array, the server storage device number reach 32 and more than.The cloud battle array that can have a lot of different application field on the Internet simultaneously by cloud storage application software, can be switched, easily visit fast.
Data element---a kind of nonformatted data file is to be split into many less daughter files of N by a complete file, and these daughter files are data element.Data element is the memory cell based on the minimum of server orientation in the cloud battle array.
Technical scheme:
The cloud storage is that client application software combines with central storage device, realizes the service of central storage device by application software.On the software simulation experimental study of the present invention basis, propose a kind of framework method of parallel system of feasible new cloud storage, change fully that existing cloud storage client application software and Center Storage Server combine
(mode and method), the problem of evading the security risk of present cloud storage from the technical method effectively, impel the client to set up the trust that cloud is stored from mechanism, simultaneously, compare with existing cloud memory technology method, adopt the cloud storage application software of cloud memory technology scheme of the present invention, except fail safe, better at aspects such as speed, reliability, availabilities.
Details are as follows for scheme:
The pattern that existing cloud storage application software combines with memory device is with one basically
Set up the storage corresponding relation with central server stores equipment, specifically, application software is undertaken ciphered compressed to this document by client's password, preserve (uploading) to storage server, then, by obtaining storage directory, fetching (passing down) opens this document decompress(ion).
It is the memory module of storage element with the complete file that the present invention abandons it this fully, replace is to be the memory module of memory cell with the data element, that is: a complete file, before submitting storage to, be divided into a plurality of data elements in advance, then, the password of pressing the client is to the data element ciphered compressed, set up parallel storage corresponding relation between data element and the cloud battle array, specifically, cloud storage application software will be preserved a file to the cloud battle array, computer program at first be with this file division a plurality of data elements and ciphered compressed it, calculation procedure is pressed data element quantity again, generates the data element storage process of equivalent amount, by process and data element pairing, it is parallel to set up process and cloud battle array
Transmission node, each transmission node is corresponding to a storage server in the cloud battle array, and its primitive rule is: a data element is corresponding to the last storage server of Yun Zhen; N data element is then corresponding to last N the storage server of Yun Zhen.Carry out by each process, respectively data element is delivered to Yun Zhen and go up each storage server preservation.
Briefly, the method for this cloud storage is exactly a complete file, and decomposition is saved in its daughter (data element) respectively on the different Center Storage Servers after encrypting.
Fetch this document, by obtaining storage directory, each storage server on the cloud battle array is respectively fetched many data elements of N under this document, and by client's password decompressed data unit, then, computer program remerges each data element, reconstructs this document.
From central angle, this cloud memory technology method, exactly each storage server in the cloud battle array is carried out serial number, with No. 1 stores service management the 1st along number data element, same quadrat method, No. 2 stores service management the 2nd serial order data unit, by that analogy, the data element of N stores service management N serial number promptly, is set up the relation of corresponding stored one by one of data element and server.
Again from dynamic angle, on certain time point, if the computer program of a cloud storage client has generated 10 data elements, 10 storage servers that then can drive in the cloud battle array are its work, that is to say, the accessing operation of a file of this customer selecting just has 10 storage servers immediately for they responses, and stores service is provided.
So-called " transmission node ", its name derives from neural net node call, its implication is meant that the computer program of client generates depositing (storage) or getting (calling) process of a Internet, process drives the transmission (deposit and get) of a data element, realizes mutual (deposit and get) to storage server in client and the cloud battle array.For example: if a file has generated 10 data elements, application software generates will produce 10 processes, must generate 10 transmission nodes (process+data element), also just must have 10 storage servers in the cloud battle array to produce responsive operation.
Technical characterictic:
(1) combine with the storage server of cloud battle array in cloud storage application software, having realized a kind of is the storage relation of basic unit of storage foundation and cloud battle array with the data element, specifically, a complete file by generating data element, is broken the whole up into parts realization dispersion storage.This dispersion storage is to set up corresponding storage by the storage server of the corresponding sequence number in data element file sequence number and the cloud battle array to concern.
(2) cloud battle array framework.Yun Zhen is the centralized storage framework that the present invention proposes the cloud storage, and technical characterstic is made up of the storage server of many data elements of N.N is an integer, and the scale of the size decision cloud battle array of N is generally between 4-64.
Follow the following rule of correspondence:
Numbering in order of Center Storage Server;
The serial number of storage server serial number and data element has relation one to one.
That is: No. 1 data element corresponding stored is at No. 1 cloud battle array storage server, and No. 2 data element corresponding stored is at No. 2 cloud battle array storage server, and by that analogy, N data element corresponding stored is at N cloud battle array storage server.
(3) data element.Data element is the file of the memory cell of the minimum after a complete file that the present invention proposes is cut apart.Size control to data element is extremely important.Software test of the present invention shows: the size of a data element should be controlled at below the 200KB, and average is best between 50-120KB.
The corresponding cloud battle array storage server of data element, can realize with a data element that powerful server process is very little, this server obviously can improve the efficient (load of big flow visit) of the processing of Center Storage Server and the speed of parallel transmission with big (server) to the asymmetry characteristics of little (data element), less by data element, not only transmission is fast but also probability of failure is extremely low, add the continuous biography and the storage authentication mechanism of storage process, in each data element storage, significantly improve the reliability of the storage of each data element, availability, speed also just equals to have improved the reliability that whole cloud is stored application software, availability and speed.
(4) client's that adopted of data element or the encrypted compression of complete file password is a cloud storage password, and should follow the principles: the password of Yun Zhen storage does not allow to carry out any type of preservation.This is an important link of guaranteeing the safety of cloud storage.
The password of common customer is divided into A and two part: A of B partly are cloud store compressed password, and B partly is the self-defining sorting code number of privately owned resource money inquiry.The A password must not be preserved.
(5) cloud battle array server adopts Unix as support, compares with Widows Server, obtains the technical advantage of Unix server.
Advantage and meaning:
(1) based on the framework method of the parallel system of the cloud of data element and Yun Zhen technology storage, solve the problem of cloud stored information safety from the technical method source, simultaneously, this method has the value of laying a foundation to storage system or the Information System configuration that makes up next band the Internet.
(2) based on the framework method of the parallel system of the cloud of data element and Yun Zhen technology storage, simultaneously, also be to adopt neural net thought at present and the parallel access framework set up, theoretical and software pilot shows can improve reliability, availability, the access speed that cloud is stored significantly.
(3) because the framework method of the parallel system of cloud storage of setting up of the present invention to current China's cloud storage system of setting up, does not rely on abroad at method and technology, this has important practical significance for the method and the technical standard that make up own cloud storage.
(4) high safety, high available, high-speed cloud storage systems of establishing from method mechanism have practical value to China's informatization.
(5) because the cloud battle array adopts many storage servers parallel, data element is disperseed to store the storage total capacity that equals significantly to enlarge central authorities.
Description of drawings
Fig. 1 is the pattern that prior art medium cloud storage application software combines with central storage device;
Fig. 2 is the pattern that medium cloud storage application software of the present invention combines with the storage server of central cloud battle array.
Embodiment
The technical scheme of cloud storage of the present invention can be used for instructing the cloud battle array to make up and cloud storage applicating software programming.
Be divided into A, B, four implementation methods of C, D.
A, cloud battle array storage server architecture method
Suppose the cloud battle array, 8 storage servers are arranged, be numbered 1-8, each server adopts Unix to support, realizes file storage with the FTP technology, and each data element storage directory is set, and is specific as follows:
No. 1 server directory is c1, and No. 2 server directories are c2, and No. 3 server directories are c3, and No. 4 server directories are c4, and No. 5 server directories are c5, and No. 6 server directories are c6, and No. 7 server directories are c6, and No. 8 server directories are c8.
The generation and the storage of B, client programmed method---data element
1, computer program has generated a file or selected disk file F;
2, computer program calculates this document size s1, establishes s1=4000KB;
3, confirm to submit centralized storage to, will carry out following steps:
(1) computer program by regular automatic setting a partitioning parameters v, establish v=500 (KB), the computer segmentation procedure will be by parameter v, file F is divided into 8 data elements, be respectively d1, d2, d3, d4, d5, d6, d7, d8, each data element size is 500KB.
(2) computer program will be by the storage password of client's submission to 8 data elements of this document ciphered compressed respectively, generates one and has the packed data unit of unique name based on digital coding, is made as dd1, dd2, dd3,, dd4, dd5, dd6, dd7, dd8, each packed data unit is 50KB.
(3) computer program generates immediately and starts 8 separate, stored processes (FTP), is respectively p1, p2, p3, p4, p5, p6, p7, p8;
(4) p1 carries out the dd1 storage, and p2 carries out the dd2 storage, and p3 carries out the dd3 storage, and p4 carries out the dd4 storage, and p5 carries out dd5, and p6 carries out the dd6 storage, and p7 carries out the dd7 storage, and p8 carries out the storage of dd8.
Whether successful, process is withdrawed from all processes successes immediately if (5) each process being detected storage, the prompting storage finishes.
The method of C, internet transmission
The transmission of internet transmission difference and local area network (LAN), the factors such as network congestion that may occur, bandwidth and speed change in time, and in order to ensure the transmission of data element, data element is more little, and is for transmission is fast more, influenced just more little.
The present invention shows through the transmission test of data element repeatedly:
Compression back data element size is controlled between the 1-120KB, owing to take multi-process parallel transmission data element, and therefore, obviously fast than the non-parallel whole file of independent transmission.
Here key is by program computed segmentation parameter v size.
The method that D, client are got
1, the client provides cloud storage password and Resource Category Code;
2, carry out inquiry, obtain the cloud storage directory, choose a stored record;
3, obtain the coding schedule of data element, press coding schedule, generate data element and call (getting) process, be provided with 8 data primitive encodings, then generate and start 8 processes, corresponding storage server obtains data element (FTP is biography down) on the cloud battle array;
4, data element obtains and finishes, and by client's cloud storage password, carries out the data element decompress(ion);
5,8 data elements are merged processing, reconstruct this complete file.
Claims (4)
1, the cloud storage comprises client cloud storage application software and central cloud storage architecture two large divisions, and adopting the framework method of the parallel system of cloud storage also is to have comprised this two large divisions, and is still, then significantly different on the technical method:
The pattern of the combination of existing cloud storage application software and the storage of central cloud is set up based on a complete file and central server stores equipment and is stored corresponding relation, and Information Security is based on to a complete file ciphered compressed;
The framework method that adopts the parallel system of cloud storage then is to be the memory module of basic memory cell with data element, that is: a complete file is divided into a plurality of data elements before submitting storage to, to set up the storage corresponding relation between data element and the centralized storage framework.The cloud storing process is process and the data element pairing that application software generates, and sets up multi-process and cloud battle array parallel transmission, and its primitive rule is: a data element is corresponding to the last storage server of Yun Zhen; N data element is then corresponding to last N the storage server of Yun Zhen.Carry out by each transmission process, respectively data element is delivered to Yun Zhen and go up the separately preservation of each storage server.Data security is based on the compress-encrypt of data element and disperses memory mechanism.
On the present invention central authorities cloud storage architecture, adopted the technology of cloud battle array, technical characterstic is that Yun Zhen is made up of the storage server of data element correspondence, cloud storage client application software combines last with the storage server of cloud battle array, realized that a kind of is basic unit of storage with the data element, set up the storage relation with the cloud battle array, that is, concern by the storage of the storage server foundation " sitting in the right seat " of the corresponding sequence number in data element sequence number and the cloud battle array.
2, described cloud storage application software and the centralized storage framework storage corresponding relation set up of claim 1, adopting data element is the storage of a basic unit of storage and a data element of a process execution, the method that a plurality of processes are parallel.
3, the described cloud battle array of claim 1 structure is made up of the storage server of many data elements of N, follows the following rule of correspondence:
(1) Center Storage Server of Yun Zhen numbers in order;
(2) serial number of storage server serial number and data element has relation one to one.
4, the described cloud storage security of claim 1 is based on data element by client password encryption and dispersion storage, and should follow the principles: the password of data element ciphered compressed does not allow to carry out any type of preservation.
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