CN107741968A - A kind of method of document retrieval, system, device and computer-readable recording medium - Google Patents
A kind of method of document retrieval, system, device and computer-readable recording medium Download PDFInfo
- Publication number
- CN107741968A CN107741968A CN201710929757.2A CN201710929757A CN107741968A CN 107741968 A CN107741968 A CN 107741968A CN 201710929757 A CN201710929757 A CN 201710929757A CN 107741968 A CN107741968 A CN 107741968A
- Authority
- CN
- China
- Prior art keywords
- file
- cryptographic hash
- subdirectory
- found
- document retrieval
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- G06F16/13—File access structures, e.g. distributed indices
- G06F16/137—Hash-based
Abstract
The invention discloses a kind of method of document retrieval, it is included under top-level director and creates multiple subdirectories, calculate the cryptographic Hash of each file in top-level director respectively, and each file is stored in subdirectory corresponding with its cryptographic Hash respectively；The cryptographic Hash of file to be found, and the subdirectory according to where the cryptographic Hash of file to be found determines file to be found are calculated, so that upper level applications call file to be found in subdirectory.The present invention reduces the scope of document retrieval, improves retrieval rate, reduces the stand-by period of upper level applications, and the experience of user is significantly improved under conditions of big data quantity.The invention also discloses a kind of system of document retrieval, device and computer-readable recording medium, has above-mentioned beneficial effect.
Description
Technical field
The present invention relates to searching field, more particularly to a kind of method of document retrieval, system, device and computer-readable
Storage medium.
Background technology
Along with the development of big data, the term of validity of data is increasingly longer, in order to preserve these data, different producers and
Research institution proposes a variety of storage modes, such as disk array, distributed storage etc..But no matter which kind of storage mode,
Operating system aspect is required for preserving data into the file one by one in file system.With being on the increase for data volume,
The quantity of documents preserved in file system under same top-level director also gradually increases, if upper level applications are wanted to call top layer mesh
Record under wherein some or a certain group of file is realized during certain function, it is necessary to which operating system first obtains the institute under the top-level director
Documentary information, qualified file is then searched from All Files information, will finally find some or one group
File returns to upper level applications, carries out subsequent operation.When data volume is larger, operating system will read a large amount of invalid numbers
According to reducing the speed of document retrieval, increase the stand-by period of upper level applications.
Therefore, how to provide a kind of scheme for solving above-mentioned ended questions is that those skilled in the art need to solve at present
Problem.
The content of the invention
It is an object of the invention to provide a kind of method of document retrieval, reduces the scope of document retrieval, improves retrieval
Speed, reduces the stand-by period of upper level applications, and the experience of user is significantly improved under conditions of big data quantity；This hair
Bright another object is to provide a kind of system of document retrieval, device and computer-readable recording medium.
In order to solve the above technical problems, the invention provides a kind of method of document retrieval, including：
Multiple subdirectories are created under top-level director, calculate the cryptographic Hash of each file in the top-level director respectively, and
Each file is stored in subdirectory corresponding with its cryptographic Hash respectively；
The cryptographic Hash of file to be found is calculated, and the file to be found is determined according to the cryptographic Hash of the file to be found
The subdirectory at place, so that upper level applications call the file to be found in the subdirectory.
Preferably, it is described calculate the cryptographic Hash of each file in the top-level director respectively process be specially：
Calculate the cryptographic Hash of each file respectively according to the filename of each file in the top-level director.
Preferably, it is described calculate the cryptographic Hash of each file in the top-level director respectively process be specially：
The fileinfo of each file in the top-level director is encoded respectively, according to corresponding to each file
Coding calculates the cryptographic Hash of each file respectively, wherein, the fileinfo includes filename, file size, document creation day
Phase and file modified date.
Preferably, the process that each file is stored in subdirectory corresponding with its cryptographic Hash respectively is specific
For：
Each file is stored in subdirectory corresponding with its cryptographic Hash lowest order respectively.
Preferably, subdirectory where the cryptographic Hash according to the file to be found determines the file to be found
Process is specially：
Step 11：Into the corresponding subdirectory of lowest order of the cryptographic Hash with the file to be found, and it is set to work as
Preceding catalogue, the lowest order are set to present bit；
Step 12：Judge that the current directory whether there is next stage subdirectory, if so, into step 13, if it is not, into
Step 14；
Step 13：Into Gao Yiwei corresponding next stage of the present bit of the cryptographic Hash with the file to be found
Catalogue, using the next stage subdirectory as current directory, and by the numerical digit of the cryptographic Hash corresponding with the current directory
As present bit, into step 12；
Step 14：The subdirectory current directory being defined as where the file to be found.
In order to solve the above technical problems, present invention also offers a kind of system of document retrieval, including：
Memory module, for creating multiple subdirectories in top-level director, it is additionally operable to calculate respectively in the top-level director
The cryptographic Hash of each file, and each file is stored in subdirectory corresponding with its cryptographic Hash respectively；
Searching modul, determined for calculating the cryptographic Hash of file to be found, and according to the cryptographic Hash of the file to be found
Subdirectory where the file to be found, so that upper level applications call the file to be found in the subdirectory.
Preferably, the memory module is specifically used for being calculated respectively according to the filename of each file in the top-level director
The cryptographic Hash of each file.
Preferably, the memory module is specifically used for each file being stored in respectively and its cryptographic Hash lowest order pair
In the subdirectory answered.
In order to solve the above technical problems, present invention also offers a kind of device of document retrieval, including：
Memory, for storing computer program；
Processor, the document retrieval method as described in above-mentioned any one is realized during for performing the computer program
Step.
In order to solve the above technical problems, present invention also offers a kind of computer-readable recording medium, the computer can
Read to be stored with computer program in storage medium, realized when the computer program is executed by processor such as above-mentioned any one institute
The step of document retrieval method stated.
The invention provides a kind of method of document retrieval, it is included under top-level director and creates multiple subdirectories, count respectively
The cryptographic Hash of each file in top-level director is calculated, and each file is stored in subdirectory corresponding with its cryptographic Hash respectively；
The cryptographic Hash of file to be found, and the subdirectory according to where the cryptographic Hash of file to be found determines file to be found are calculated, with
Just upper level applications call file to be found in subdirectory.
It can be seen that in actual applications,, will by creating multiple subdirectories in top-level director using the solution of the present invention
Each file is stored in the subdirectory corresponding with its cryptographic Hash, only need to be according to text to be found when searching file
The cryptographic Hash of part is assured that the accurate location of file to be found, facilitates upper level applications to call, and reduces document retrieval
Scope, improve retrieval rate, reduce the stand-by period of upper level applications, significantly improved under conditions of big data quantity
The experience of user.
Present invention also offers a kind of system of document retrieval, device and computer-readable recording medium, has and above-mentioned
Document retrieval method identical beneficial effect.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, below will be to institute in prior art and embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is a kind of flow chart of document retrieval method provided by the present invention；
Fig. 2 is a kind of structural representation of document retrieval system provided by the present invention.
Embodiment
The core of the present invention is to provide a kind of method of document retrieval, reduces the scope of document retrieval, improves retrieval
Speed, reduces the stand-by period of upper level applications, and the experience of user is significantly improved under conditions of big data quantity；This hair
Bright another core is to provide a kind of system of document retrieval, device and computer-readable recording medium.
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Fig. 1 is refer to, Fig. 1 is a kind of flow chart of document retrieval method provided by the present invention, including：
Step 1：Multiple subdirectories are created under top-level director；
Step 2：The cryptographic Hash of each file in top-level director is calculated respectively, and each file is stored in respectively and breathed out with it
In subdirectory corresponding to uncommon value；
Specifically, when the total number of files in top-level director reaches certain threshold value, multiple specific items are created under top-level director
Record, because the cryptographic Hash that the present invention is calculated is 16 system numbers, so the number of subdirectory is 16, corresponding naming method can
Think DIR_0-DIR_F, the cryptographic Hash being calculated according to each file, each file is stored in son corresponding with its cryptographic Hash
In catalogue, if specifically, the cryptographic Hash of a file be 1234, subdirectory DIR_1 or son can be put into by different rules
In catalogue DIR_4, storage file, provides the foundation for follow-up lifting retrieval rate as stated above, the regular factually border feelings of storage
Depending on condition, the present invention does not limit herein.
Step 3：The cryptographic Hash of file to be found is calculated, and file institute to be found is determined according to the cryptographic Hash of file to be found
Subdirectory, so that upper level applications call file to be found in subdirectory.
Specifically, calculating the cryptographic Hash of file to be found first, according to the cryptographic Hash of file to be found, text to be found is found
Subdirectory where part, facilitates upper level applications to call, and reduces the scope of document retrieval, improves retrieval rate, reduces
The stand-by period of upper level applications, significantly improve the experience of user under conditions of big data quantity.
The invention provides a kind of method of document retrieval, it is included under top-level director and creates multiple subdirectories, count respectively
The cryptographic Hash of each file in top-level director is calculated, and each file is stored in subdirectory corresponding with its cryptographic Hash respectively；
The cryptographic Hash of file to be found, and the subdirectory according to where the cryptographic Hash of file to be found determines file to be found are calculated, with
Just upper level applications call file to be found in subdirectory.
It can be seen that in actual applications,, will by creating multiple subdirectories in top-level director using the solution of the present invention
Each file is stored in the subdirectory corresponding with its cryptographic Hash, only need to be according to text to be found when searching file
The cryptographic Hash of part is assured that the accurate location of file to be found, facilitates upper level applications to call, and reduces document retrieval
Scope, improve retrieval rate, reduce the stand-by period of upper level applications, significantly improved under conditions of big data quantity
The experience of user.
On the basis of above-described embodiment：
As a kind of preferred embodiment, the process for calculating the cryptographic Hash of each file in top-level director respectively is specially：
Calculate the cryptographic Hash of each file respectively according to the filename of each file in top-level director.
As a kind of preferred embodiment, the process for calculating the cryptographic Hash of each file in top-level director respectively is specially：
The fileinfo of each file in top-level director is encoded respectively, difference is encoded according to corresponding to each file
The cryptographic Hash of each file is calculated, wherein, fileinfo includes filename, file size, file creation date and file modification
Date.
Specifically, when searching file, the cryptographic Hash first according to corresponding to the attribute of file calculates file, to carry
High service speed provides the foundation, and the method for conventional calculating cryptographic Hash is exactly to be calculated according to the filename of file, in order that
The cryptographic Hash of file is more accurate, more representative, the present invention also to the filename of file, file size, file creation date and
File modified date is encoded, the cryptographic Hash of calculation code, the cryptographic Hash as file.
Certainly, the method for cryptographic Hash is calculated except two kinds of above-mentioned introduction, can also be other method, and the present invention is herein not
Limit.
As a kind of preferred embodiment, each file is stored in the mistake in subdirectory corresponding with its cryptographic Hash respectively
Journey is specially：
Each file is stored in subdirectory corresponding with its cryptographic Hash lowest order respectively.
Specifically, the cryptographic Hash for assuming a file is 0XA4CEE0D2, then this file is stored in into/root/
In DIR_2, wherein root is top-level director, it is to be understood that if the number of files in subdirectory DIR_2 also meets default threshold
Value, then can also split into 16 new next stage subdirectories, then according to the cryptographic Hash of file, by file in subdirectory DIR_2
Be stored in/root/DIR_2/DIR_D in, by that analogy.
Certainly, the storage rule of file is by lowest order except can be deposited forward, can also be deposited backward by highest order or
Other location modes, the present invention do not limit herein.
As a kind of preferred embodiment, the subdirectory according to where the cryptographic Hash of file to be found determines file to be found
Process be specially：
Step 11：Into the corresponding subdirectory of lowest order of the cryptographic Hash with file to be found, and it is set to current mesh
Record, lowest order are set to present bit；
Step 12：Judge that current directory whether there is next stage subdirectory, if so, into step 13, if it is not, into step
14；
Step 13：, will into the corresponding next stage subdirectories of Gao Yiwei of the present bit of the cryptographic Hash with file to be found
Next stage subdirectory is as current directory, and using the numerical digit of cryptographic Hash corresponding with current directory as present bit, into step
12；
Step 14：Subdirectory current directory being defined as where file to be found.
Specifically, precalculate the cryptographic Hash of file to be found, it is assumed that the cryptographic Hash for the file to be found being calculated is
0XA4CEE0D2, subdirectory corresponding to cryptographic Hash lowest order is found from top-level director when searching, as current directory, i.e.,
DIR_2, into after DIR_2, judge that DIR_2 whether there is next stage subdirectory, if in the presence of by the penultimate of cryptographic Hash
Into next stage subdirectory, i.e. root/DIR_2/DIR_D, now using DIR_D as current directory, judge that DIR_D whether there is
Next stage subdirectory, if in the presence of entering next stage subdirectory, i.e. root/DIR_2/DIR_ by the antepenulatimate of cryptographic Hash
D/DIR_0, judge that DIR_0 whether there is next stage subdirectory, by that analogy cycle criterion, until a certain position of its cryptographic Hash is corresponding
Subdirectory in the absence of first level subdirectory when, the subdirectory that this first level subdirectory is defined as where file to be found, so as to
Upper level applications are called to it.
In summary, file is carried out according to the cryptographic Hash of file being layered preservation and retrieval, reduces the model of document retrieval
Enclose, significantly improve retrieval rate.
Fig. 2 is refer to, Fig. 2 is a kind of structural representation of document retrieval system provided by the present invention, including：
Memory module 1, for creating multiple subdirectories in top-level director, it is additionally operable to calculate respectively each in top-level director
The cryptographic Hash of file, and each file is stored in subdirectory corresponding with its cryptographic Hash respectively；
Searching modul 2, for calculating the cryptographic Hash of file to be found, and determined according to the cryptographic Hash of file to be found to be checked
The subdirectory looked for where file, so that upper level applications call file to be found in subdirectory.
As a kind of preferred embodiment, memory module 1 is specifically used for the filename according to each file in top-level director
The cryptographic Hash of each file is calculated respectively.
As a kind of preferred embodiment, memory module 1 is specifically used for each file being stored in respectively and its cryptographic Hash
In subdirectory corresponding to lowest order.
In order to solve the above technical problems, present invention also offers a kind of device of document retrieval, including：
Memory, for storing computer program；
Processor, the step of document retrieval method such as above-mentioned any one is realized during for performing computer program.
In order to solve the above technical problems, present invention also offers a kind of computer-readable recording medium, it is computer-readable to deposit
Computer program is stored with storage media, the document retrieval such as above-mentioned any one is realized when computer program is executed by processor
The step of method.
Introduction for a kind of system of document retrieval provided by the present invention, device and computer-readable recording medium please
With reference to above-described embodiment, the present invention will not be repeated here.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment
For, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (10)
- A kind of 1. method of document retrieval, it is characterised in that including：Multiple subdirectories are created under top-level director, calculate the cryptographic Hash of each file in the top-level director respectively, and will be each The individual file is stored in subdirectory corresponding with its cryptographic Hash respectively；The cryptographic Hash of file to be found is calculated, and according to where the cryptographic Hash of the file to be found determines the file to be found Subdirectory, so that upper level applications call the file to be found in the subdirectory.
- 2. according to the method for claim 1, it is characterised in that described to calculate each file in the top-level director respectively The process of cryptographic Hash is specially：Calculate the cryptographic Hash of each file respectively according to the filename of each file in the top-level director.
- 3. according to the method for claim 1, it is characterised in that described to calculate each file in the top-level director respectively The process of cryptographic Hash is specially：The fileinfo of each file in the top-level director is encoded respectively, the coding according to corresponding to each file Calculate the cryptographic Hash of each file respectively, wherein, the fileinfo include filename, file size, file creation date and File modified date.
- 4. according to the method for claim 1, it is characterised in that described to be stored in each file and its Hash respectively Process in subdirectory corresponding to value is specially：Each file is stored in subdirectory corresponding with its cryptographic Hash lowest order respectively.
- 5. according to the method described in claim 1-4 any one, it is characterised in that the Kazakhstan according to the file to be found The process of subdirectory where the uncommon value determination file to be found is specially：Step 11：Into the corresponding subdirectory of lowest order of the cryptographic Hash with the file to be found, and it is set to current mesh Record, the lowest order are set to present bit；Step 12：Judge that the current directory whether there is next stage subdirectory, if so, into step 13, if it is not, into step 14；Step 13：Into the corresponding next stage specific items of Gao Yiwei of the present bit of the cryptographic Hash with the file to be found Record, using the next stage subdirectory as current directory, and the numerical digit of the cryptographic Hash corresponding with the current directory is made For present bit, into step 12；Step 14：The subdirectory current directory being defined as where the file to be found.
- A kind of 6. system of document retrieval, it is characterised in that including：Memory module, for creating multiple subdirectories in top-level director, it is additionally operable to calculate respectively each in the top-level director The cryptographic Hash of file, and each file is stored in subdirectory corresponding with its cryptographic Hash respectively；Searching modul, for calculating the cryptographic Hash of file to be found, and according to determining the cryptographic Hash of the file to be found Subdirectory where file to be found, so that upper level applications call the file to be found in the subdirectory.
- 7. system according to claim 6, it is characterised in that the memory module is specifically used for according to the top-level director In the filename of each file calculate the cryptographic Hash of each file respectively.
- 8. system according to claim 6, it is characterised in that the memory module is specifically used for each file point It is not stored in subdirectory corresponding with its cryptographic Hash lowest order.
- A kind of 9. device of document retrieval, it is characterised in that including：Memory, for storing computer program；Processor, the document retrieval side as described in claim 1-5 any one is realized during for performing the computer program The step of method.
- 10. a kind of computer-readable recording medium, it is characterised in that be stored with computer on the computer-readable recording medium Program, the document retrieval method as described in claim 1-5 any one is realized when the computer program is executed by processor The step of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710929757.2A CN107741968B (en) | 2017-10-09 | 2017-10-09 | Method, system and device for file retrieval and computer readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710929757.2A CN107741968B (en) | 2017-10-09 | 2017-10-09 | Method, system and device for file retrieval and computer readable storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107741968A true CN107741968A (en) | 2018-02-27 |
| CN107741968B CN107741968B (en) | 2021-06-29 |
Family
ID=61236767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710929757.2A Active CN107741968B (en) | 2017-10-09 | 2017-10-09 | Method, system and device for file retrieval and computer readable storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107741968B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108595715A (en) * | 2018-05-15 | 2018-09-28 | 厦门市美亚柏科信息股份有限公司 | A kind of file mark and re-scheduling analysis method, terminal device and storage medium |
| CN111061681A (en) * | 2019-11-15 | 2020-04-24 | 浪潮电子信息产业股份有限公司 | Method and device for partitioning directory based on case insensitivity and storage medium |
| CN115238257A (en) * | 2022-09-26 | 2022-10-25 | 深圳市亲邻科技有限公司 | Access control face permission updating method and device, computer equipment and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101196929A (en) * | 2007-12-29 | 2008-06-11 | 中国科学院计算技术研究所 | Metadata management method for splitting name space |
| CN102725755A (en) * | 2011-12-31 | 2012-10-10 | 华为技术有限公司 | Method and system of file access |
| CN103384256A (en) * | 2012-05-02 | 2013-11-06 | 天津书生投资有限公司 | Cloud storage method and device |
| CN105701096A (en) * | 2014-11-25 | 2016-06-22 | 腾讯科技（深圳）有限公司 | Index generation method, data inquiry method, index generation device, data inquiry device and system |
-
2017
- 2017-10-09 CN CN201710929757.2A patent/CN107741968B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101196929A (en) * | 2007-12-29 | 2008-06-11 | 中国科学院计算技术研究所 | Metadata management method for splitting name space |
| CN102725755A (en) * | 2011-12-31 | 2012-10-10 | 华为技术有限公司 | Method and system of file access |
| CN103384256A (en) * | 2012-05-02 | 2013-11-06 | 天津书生投资有限公司 | Cloud storage method and device |
| CN105701096A (en) * | 2014-11-25 | 2016-06-22 | 腾讯科技（深圳）有限公司 | Index generation method, data inquiry method, index generation device, data inquiry device and system |
Non-Patent Citations (1)
| Title |
|---|
| 许圣明 等: ""基于有序哈希树的 RPKI 资料库数据同步方法"", 《计算机系统应用》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108595715A (en) * | 2018-05-15 | 2018-09-28 | 厦门市美亚柏科信息股份有限公司 | A kind of file mark and re-scheduling analysis method, terminal device and storage medium |
| CN108595715B (en) * | 2018-05-15 | 2020-09-11 | 厦门市美亚柏科信息股份有限公司 | File marking and arrangement analysis method, terminal equipment and storage medium |
| CN111061681A (en) * | 2019-11-15 | 2020-04-24 | 浪潮电子信息产业股份有限公司 | Method and device for partitioning directory based on case insensitivity and storage medium |
| CN115238257A (en) * | 2022-09-26 | 2022-10-25 | 深圳市亲邻科技有限公司 | Access control face permission updating method and device, computer equipment and storage medium |
| CN115238257B (en) * | 2022-09-26 | 2023-01-06 | 深圳市亲邻科技有限公司 | Access control face permission updating method and device, computer equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107741968B (en) | 2021-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10216440B2 (en) | Disk management in distributed storage system including grouping disks into cold and hot data disk rings and reducing a spinning rate of disks storing cold data | |
| US10455018B2 (en) | Distributed processing of shared content | |
| US8704687B2 (en) | Code set conversion management optimization | |
| US7853770B2 (en) | Storage system, data relocation method thereof, and recording medium that records data relocation program | |
| CN107122126B (en) | Data migration method, device and system | |
| CN102930060B (en) | A kind of method of database quick indexing and device | |
| CN107302561B (en) | A kind of hot spot data Replica placement method in cloud storage system | |
| CN105468642A (en) | Data storage method and apparatus | |
| CN104199784A (en) | Data migration method and device based on hierarchical storage | |
| CN105677742A (en) | Method and apparatus for storing files | |
| CN107741968A (en) | A kind of method of document retrieval, system, device and computer-readable recording medium | |
| CN105989015B (en) | Database capacity expansion method and device and method and device for accessing database | |
| CN103631894A (en) | Dynamic copy management method based on HDFS | |
| CN110162796A (en) | Special Topics in Journalism creation method and device | |
| CN103198027A (en) | Method and device for storing and providing files | |
| CN108170656A (en) | Template establishment method, document creating method, rendering intent and device | |
| CN105630810A (en) | Method for uploading mass small files in distributed storage system | |
| CN111125088B (en) | Multi-level data processing method and device | |
| CN104462349A (en) | File processing method and file processing device | |
| Guan et al. | HDFS optimization strategy based on hierarchical storage of hot and cold data | |
| CN106951529A (en) | The management method and system of a kind of mass small documents | |
| CN108763562A (en) | A kind of construction method based on big data skill upgrading data exchange efficiency | |
| KR20180077830A (en) | Processing method for a relational query in distributed stream processing engine based on shared-nothing architecture, recording medium and device for performing the method | |
| CN104794237A (en) | Web page information processing method and device | |
| CN111159192B (en) | Big data based data warehousing method and device, storage medium and processor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |