CN106487937A - A kind of cloud storage system file De-weight method and system - Google Patents
A kind of cloud storage system file De-weight method and system Download PDFInfo
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- CN106487937A CN106487937A CN201611265025.XA CN201611265025A CN106487937A CN 106487937 A CN106487937 A CN 106487937A CN 201611265025 A CN201611265025 A CN 201611265025A CN 106487937 A CN106487937 A CN 106487937A
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- file
- cloud storage
- storage system
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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
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/16—File or folder operations, e.g. details of user interfaces specifically adapted to file systems
- G06F16/162—Delete operations
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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
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
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- Data Mining & Analysis (AREA)
- Databases & Information Systems (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
The invention discloses a kind of cloud storage system file De-weight method and system, method includes：Read file to be uploaded, the informative abstract value of calculation document；The informative abstract value of file is compared with the informative abstract value that there is file in cloud storage system, if existence information digest value and the informative abstract value identical file of file in cloud storage system, stops the upload to file.Cloud storage system file De-weight method of the present invention and system, informative abstract value using file, the informative abstract value of file has uniqueness, if there is the informative abstract value identical file with transmitting file to be gone up in cloud storage system, show to have existed this document data in cloud storage system, then no longer upload this document, thus avoiding there is duplicate file in cloud storage system the duplicate removal it is achieved that to cloud storage system file.
Description
Technical field
The present invention relates to cloud storage technical field, more particularly to a kind of cloud storage system file De-weight method and system.
Background technology
With the continuous development of Internet technology and the emergence of cloud computing, network data is more and more abundanter, and cloud service is got over
More popularized.In cloud service application, domestic consumer can pass through application Dropbox account by the files passe of oneself to cloud
End server, and the privately owned cloud service platform of oneself even more can be built by cloud service provider by enterprise.One of cloud service
Critical function is to provide cloud storage, file can be deposited high in the clouds, cloud storage can realize data automatic synchronization, carry out history version
This management, file is never lost.
However, with being continuously increased using user, the file of upload is also on the increase, but transmitting file actually on these
In there is substantial amounts of redundant file, that is, different user may upload identical file, and this can be to Cloud Server storage tape
Carry out very big pressure.
Content of the invention
It is an object of the invention to provide a kind of cloud storage system file De-weight method and system, can avoid in cloud storage system
There is duplicate file it is achieved that duplicate removal to cloud storage system file.
For achieving the above object, the present invention provides following technical scheme：
A kind of cloud storage system file De-weight method, including：
Read file to be uploaded, calculate the informative abstract value of described file；
The informative abstract value of described file is compared with the informative abstract value that there is file in cloud storage system, if cloud is deposited
In storage system, existence information digest value and the informative abstract value identical file of described file, then stop upper to described file
Pass.
Alternatively, if described file to be uploaded is in upper crossing, when existence information digest value and institute in cloud storage system
State file informative abstract value identical file when, stop upload to described file, and delete in cloud storage system and go up
The file part passing.
Alternatively, also include：The informative abstract value identical of informative abstract value and described file in record cloud storage system
The information of file and storage location.
Alternatively, if existence information digest value is not civilian with the informative abstract value identical of described file in cloud storage system
Part, then complete the upload to described file, and in the completed by the information of described file, informative abstract value and storage location record
To in file information table.
Alternatively, also include：When deleting file in cloud storage system, inquiry and file to be deleted in file information table
Informative abstract value identical file record, if the record strip number inquiring be more than or equal to 2, do not delete described file to be deleted
Corresponding physical file；If the record strip number inquiring is 1, delete the corresponding physical file of described file to be deleted.
A kind of cloud storage system file machining system, including：
Computing module, for reading file to be uploaded, calculates the informative abstract value of described file；
Upload control module, for having there is the information of file in the informative abstract value of described file and cloud storage system
Digest value compares, if existence information digest value and the informative abstract value identical file of described file in cloud storage system, stops
The only upload to described file.
Alternatively, if described upload control module specifically for described file to be uploaded in upper crossing, work as cloud storage
In system during the informative abstract value identical file of existence information digest value and described file, stop the upload to described file,
And delete the file part of upload in cloud storage system.
Alternatively, also include information logging modle, for recording informative abstract value and described file in cloud storage system
The information of informative abstract value identical file and storage location.
Alternatively, if described upload control module is additionally operable in cloud storage system not existence information digest value and described file
Informative abstract value identical file, then complete the upload to described file, and in the completed by the information of described file, information
Digest value and storage location recorded in file information table.
Alternatively, also include file removing module, during for deleting file in cloud storage system, in file information table
Inquiry and the informative abstract value identical file record of file to be deleted, if the record strip number inquiring is more than or equal to 2, do not delete
Except the corresponding physical file of described file to be deleted；If the record strip number inquiring is 1, deletes described file to be deleted and correspond to
Physical file.
As shown from the above technical solution, cloud storage system file De-weight method provided by the present invention and system, in file
During uploading cloud storage system, to file to be uploaded, the informative abstract value of calculation document, by the information of described file
Digest value is compared with the informative abstract value that there is file in cloud storage system, if in cloud storage system existence information digest value with
The informative abstract value identical file of this document, then stop the upload to this document.
Cloud storage system file De-weight method of the present invention and system, using the informative abstract value of file, the information of file is plucked
Being worth with uniqueness, if there is the informative abstract value identical file with transmitting file to be gone up in cloud storage system, showing cloud
There is this document data in storage system, then no longer uploaded this document, thus avoiding there is duplicate file in cloud storage system,
Achieve the duplicate removal to cloud storage system file.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of flow chart of cloud storage system file De-weight method provided in an embodiment of the present invention；
Fig. 2 is a kind of schematic diagram of cloud storage system file machining system provided in an embodiment of the present invention.
Specific embodiment
In order that those skilled in the art more fully understand the technical scheme in the present invention, real below in conjunction with the present invention
Apply the accompanying drawing in example, the enforcement it is clear that described is clearly and completely described to the technical scheme in the embodiment of the present invention
Example is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of not making creative work, all should belong to present invention protection
Scope.
Refer to Fig. 1, a kind of cloud storage system file De-weight method provided in an embodiment of the present invention, including step：
S10：Read file to be uploaded, calculate the informative abstract value of described file.
When client is to transmitting file on cloud storage system, the informative abstract value to file calculation document to be uploaded.
The informative abstract value of file is value file data computing being obtained by special algorithm, for providing the complete of data
Whole property protection, has uniqueness.Algorithm concretely Message Digest 5, is also called digest algorithm or hash algorithm, is to calculate
A kind of widely used hash function in machine security fields, data operation is another fixed-length value, that is, obtains informative abstract value.
Informative abstract value has uniqueness, and former data is made any change, and the informative abstract value obtaining has very big difference.
S11：The informative abstract value of described file is compared with the informative abstract value that there is file in cloud storage system, if
In cloud storage system, existence information digest value and the informative abstract value identical file of described file, then stop to described file
Upload.
The informative abstract value of described file is compared with the informative abstract value that there is file in cloud storage system, if cloud is deposited
In storage system, existence information digest value and the informative abstract value identical file of this document, show there is this in cloud storage system
File data, then stop uploading this document.
As can be seen that the present embodiment cloud storage system file De-weight method, during files passe cloud storage system,
To file to be uploaded, the informative abstract value of calculation document, by the informative abstract value of described file and cloud storage system
The informative abstract value that there is file compares, if existence information digest value is identical with the informative abstract value of this document in cloud storage system
File, then stop the upload to this document.
The present embodiment cloud storage system file De-weight method, using the informative abstract value of file, the informative abstract value of file
There is uniqueness, if there is the informative abstract value identical file with transmitting file to be gone up in cloud storage system, showing cloud storage
There is this document data in system, then no longer uploaded this document, thus avoiding existing duplicate file in cloud storage system, having realized
Duplicate removal to cloud storage system file.
Below the present embodiment cloud storage system file De-weight method is described further.The present embodiment cloud storage system literary composition
Part De-weight method includes step：
S10：Read file to be uploaded, calculate the informative abstract value of described file.
When client is to transmitting file on cloud storage system, the informative abstract value to file calculation document to be uploaded.
The informative abstract value of file is value file data computing being obtained by special algorithm, for providing the complete of data
Whole property protection, has uniqueness.
S11：The informative abstract value of described file is compared with the informative abstract value that there is file in cloud storage system, if
In cloud storage system, existence information digest value and the informative abstract value identical file of described file, then stop to described file
Upload.
In the process, there are two kinds of situations：
The first situation：If the informative abstract value identical of existence information digest value and described file in cloud storage system
File, described file to be uploaded also does not upload, then stop the upload to described file, and this document is no longer to cloud storage system
Upload, it is possible to use already present same file in cloud storage system.
Second situation：If the informative abstract value identical of existence information digest value and described file in cloud storage system
File, and described file to be uploaded in upper crossing, then stops the upload to described file, and delete in cloud storage system
The file part of upload, thus is avoided that cloud storage system produces substantial amounts of garbage files.After stopping the upload to file, can
Directly display upload to complete.
In the latter case, also include：Informative abstract value by informative abstract value in cloud storage system and described file
The information of identical file and storage location recorded in file information table, so that user checks.
Therefore the present embodiment method utilizes the informative abstract value of file, if existing and transmitting file to be gone up in cloud storage system
Informative abstract value identical file, show to have existed this document data in cloud storage system, then no longer upload described file, can
Directly use existing file, thus avoiding there is duplicate file in cloud storage system it is achieved that going to cloud storage system file
Weight, has reached the purpose saving memory space.
In the present embodiment method, if in cloud storage system not existence information digest value and described file informative abstract value phase
Same file, then complete the upload to described file, and in the completed by the information of described file, informative abstract value and storage position
Put and recorded in file information table.
If the informative abstract value identical file of not existence information digest value and described file, shows cloud in cloud storage system
There is not this document data in storage system, then complete the upload to described file, and by the information of described file, informative abstract
Value and storage location recorded in file information table, recorded.
Further, the present embodiment cloud storage system file De-weight method also includes：File is deleted in cloud storage system
When, the informative abstract value identical file record of inquiry and file to be deleted in file information table, if the record strip inquiring
Number is more than or equal to 2, then do not delete the corresponding physical file of described file to be deleted；If the record strip number inquiring is 1, delete
The corresponding physical file of described file to be deleted.
In cloud storage system, there are multiple user files and correspond to a physical file, therefore user is in cloud storage system
During middle deletion file, the informative abstract value identical file record of inquiry and file to be deleted in the file information table of system,
If the record strip number inquiring is more than or equal to 2, show in addition to described file to be deleted this physical file corresponding, also other use
Family file corresponds to this physical file, then do not delete this physical file；If the record strip number inquiring is 1, only show
State file to be deleted and correspond to this physical file, then delete this document record in file information table, delete it corresponding simultaneously
Physical file.
By way of this file deletion, for the shared file data of multiple user files, can avoid deleting literary composition
During part, physical file is deleted and affect the shared use of other users, so can ensure that file data in cloud storage system
Availability.
Accordingly, refer to Fig. 2, the embodiment of the present invention also provides a kind of cloud storage system file machining system, including：
Computing module 20, for reading file to be uploaded, calculates the informative abstract value of described file；
Upload control module 21, for having there is the letter of file in the informative abstract value of described file and cloud storage system
Breath digest value compares, if in cloud storage system existence information digest value and described file informative abstract value identical file,
Stop the upload to described file.
As can be seen that the present embodiment cloud storage system file machining system includes computing module and uploads control module,
During files passe cloud storage system, to file to be uploaded, the informative abstract value of calculation document, by described file
Informative abstract value is compared with the informative abstract value that there is file in cloud storage system, if existence information summary in cloud storage system
Value and the informative abstract value identical file of this document, then stop the upload to this document.
The present embodiment cloud storage system file machining system, using the informative abstract value of file, the informative abstract value of file
There is uniqueness, if there is the informative abstract value identical file with transmitting file to be gone up in cloud storage system, showing cloud storage
There is this document data in system, then no longer uploaded this document, thus avoiding existing duplicate file in cloud storage system, having realized
Duplicate removal to cloud storage system file.
After duplicate removal judgement being carried out to file to be uploaded in client is to cloud storage system upload file processes, exist
Two kinds of situations：The first situation, described file to be uploaded also does not upload；Second situation：Described file to be uploaded
In upper crossing.
For both of these case, if described upload control module 21 is made a summary specifically for existence information in cloud storage system
Value and the informative abstract value identical file of described file, described file to be uploaded also does not upload, then stop to described literary composition
The upload of part, this document no longer uploads to cloud storage system,
If described upload control module 21 works as cloud storage system also particularly useful for described file to be uploaded in upper crossing
During the informative abstract value identical file of middle existence information digest value and described file, stop the upload to described file, and
The file part of upload is deleted in cloud storage system.It thus is avoided that cloud storage system produces substantial amounts of garbage files.Stopping
After the upload of file, upload can be directly displayed and complete.
Described system also includes information logging modle, for recording informative abstract value and described file in cloud storage system
The information of informative abstract value identical file and storage location.
In the present embodiment system, described upload control module 21 is additionally operable to：If existence information is not made a summary in cloud storage system
Value and the informative abstract value identical file of described file, then complete the upload to described file, and in the completed by described literary composition
The information of part, informative abstract value and storage location recorded in file information table.
If the informative abstract value identical file of not existence information digest value and described file, shows cloud in cloud storage system
There is not this document data in storage system, then complete the upload to described file, and by the information of described file, informative abstract
Value and storage location recorded in file information table, recorded.
Further, the present embodiment cloud storage system file machining system also includes：File removing module, for depositing in cloud
When deleting file in storage system, the informative abstract value identical file record of inquiry and file to be deleted in file information table,
If the record strip number inquiring is more than or equal to 2, do not delete the corresponding physical file of described file to be deleted；If the note inquiring
Record bar number is 1, then delete the corresponding physical file of described file to be deleted.
In cloud storage system, there are multiple user files and correspond to a physical file, therefore user is in cloud storage system
During middle deletion file, file removing module is inquired about identical with the informative abstract value of file to be deleted in the file information table of system
File record, if the record strip number inquiring is more than or equal to 2, show to correspond to this physical file except described file to be deleted
Outward, also other user files correspond to this physical file, then do not delete this physical file；If the record strip number inquiring is
1, show that only described file to be deleted corresponds to this physical file, then delete this document record in file information table, simultaneously
Delete its corresponding physical file.
Above a kind of cloud storage system file De-weight method provided by the present invention and system are described in detail.This
Apply specific case in literary composition the principle of the present invention and embodiment are set forth, the explanation of above example is only intended to
Help understands the method for the present invention and its core concept.It should be pointed out that for those skilled in the art,
Without departing from the principles of the invention, the present invention can also be carried out with some improvement and modify, these improve and modify also to fall
Enter in the protection domain of the claims in the present invention.
Claims (10)
1. a kind of cloud storage system file De-weight method is it is characterised in that include：
Read file to be uploaded, calculate the informative abstract value of described file；
The informative abstract value of described file is compared with the informative abstract value that there is file in cloud storage system, if cloud storage system
In system, existence information digest value and the informative abstract value identical file of described file, then stop the upload to described file.
If 2. cloud storage system file De-weight method according to claim 1 is it is characterised in that described literary composition to be uploaded
Part, in upper crossing, when the informative abstract value identical file of existence information digest value and described file in cloud storage system, stops
The only upload to described file, and delete the file part of upload in cloud storage system.
3. cloud storage system file De-weight method according to claim 2 is it is characterised in that also include：Record cloud storage
The information of informative abstract value identical file of informative abstract value and described file and storage location in system.
If 4. cloud storage system file De-weight method according to claim 1 is not it is characterised in that deposit in cloud storage system
In the informative abstract value identical file of informative abstract value and described file, then complete the upload to described file, and complete
Afterwards the information of described file, informative abstract value and storage location be recorded in file information table.
5. cloud storage system file De-weight method according to claim 1 is it is characterised in that also include：In cloud storage system
When deleting file in system, the informative abstract value identical file record of inquiry and file to be deleted in file information table, if look into
The record strip number ask is more than or equal to 2, then do not delete the corresponding physical file of described file to be deleted；If the record strip inquiring
Number is 1, then delete the corresponding physical file of described file to be deleted.
6. a kind of cloud storage system file machining system is it is characterised in that include：
Computing module, for reading file to be uploaded, calculates the informative abstract value of described file；
Upload control module, for having there is the informative abstract of file in the informative abstract value of described file and cloud storage system
Value compares, if in cloud storage system existence information digest value and described file informative abstract value identical file, it is right to stop
The upload of described file.
7. cloud storage system file machining system according to claim 6 is it is characterised in that described upload control module has
If body is used for described file to be uploaded in upper crossing, when the letter of existence information digest value and described file in cloud storage system
During breath digest value identical file, stop the upload to described file, and delete the Documents Department of upload in cloud storage system
Point.
8. cloud storage system file machining system according to claim 7 is it is characterised in that also include information record mould
Block, for recording the information of the informative abstract value identical file of informative abstract value and described file and storage in cloud storage system
Position.
9. cloud storage system file machining system according to claim 6 it is characterised in that described upload control module also
If for the informative abstract value identical file of not existence information digest value and described file in cloud storage system, completing to institute
State the upload of file, and in the completed the information of described file, informative abstract value and storage location be recorded file information table
In.
10. cloud storage system file machining system according to claim 6 deletes mould it is characterised in that also including file
Block, during for deleting file in cloud storage system, inquires about the informative abstract value phase with file to be deleted in file information table
Same file record, if the record strip number inquiring is more than or equal to 2, does not delete described file to be deleted corresponding physics literary composition
Part；If the record strip number inquiring is 1, delete the corresponding physical file of described file to be deleted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611265025.XA CN106487937A (en) | 2016-12-30 | 2016-12-30 | A kind of cloud storage system file De-weight method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611265025.XA CN106487937A (en) | 2016-12-30 | 2016-12-30 | A kind of cloud storage system file De-weight method and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106487937A true CN106487937A (en) | 2017-03-08 |
Family
ID=58286013
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611265025.XA Pending CN106487937A (en) | 2016-12-30 | 2016-12-30 | A kind of cloud storage system file De-weight method and system |
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| CN107205024A (en) * | 2017-05-19 | 2017-09-26 | 郑州云海信息技术有限公司 | Data duplicate removal method and system in a kind of cloud storage system |
| CN110175155A (en) * | 2019-06-03 | 2019-08-27 | 武汉纺织大学 | A kind of method and system of file duplicate removal processing |
| CN111338688A (en) * | 2020-02-28 | 2020-06-26 | 平安医疗健康管理股份有限公司 | Long-acting data caching method and device, computer system and readable storage medium |
| CN113742011A (en) * | 2020-09-28 | 2021-12-03 | 北京海益同展信息科技有限公司 | Method, mobile terminal and system for acquiring control tree |
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Application publication date: 20170308 |