CN102279881A - Junk data clearing method and file access server - Google Patents
Junk data clearing method and file access server Download PDFInfo
- Publication number
- CN102279881A CN102279881A CN201110214180XA CN201110214180A CN102279881A CN 102279881 A CN102279881 A CN 102279881A CN 201110214180X A CN201110214180X A CN 201110214180XA CN 201110214180 A CN201110214180 A CN 201110214180A CN 102279881 A CN102279881 A CN 102279881A
- Authority
- CN
- China
- Prior art keywords
- data
- file access
- access server
- junk
- meta
- 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.)
- Pending
Links
Images
Landscapes
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
The invention provides a junk data clearing method and a file access server. The method comprises the following steps that: the file access server determines a data range in which the junk data is needed to be cleared, and transmits a junk data clearing request to a metadata server; the file access server receives valid data information of the data in the data range, in which the junk data is needed to be cleared, from the metadata server; and the file access server determines the junk data needed to be cleared according to the valid data information, and clears the junk data. With the method and the file access server, the data range in which the junk data is needed to be cleared is determined, and the junk data is determined and cleared according to the valid data information issued by the metadata server, so that message interaction between the file access server and the metadata server under the environment of multiple metadata servers is effectively reduced, and the junk data can be cleared safely and efficiently.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of method and file access server of the data that remove rubbish.
Background technology
Distributed file system is widely used in professional occasions such as cloud storage, IPTV, streaming media server.Main business is a file of storing the user safely and reliably.As time goes on increase with the user, the data storage that has magnanimity is to memory device.Because file has certain ageing, the user can initiatively delete the file that some lose value, and needs of carrying out for business simultaneously sometimes can be deleted some garbage files (as user log off, user exceed the time limit not continue to pay dues etc.), come the cost of conserve memory.
The operation that sweeps away rubbish is a kind of destructive operation, especially deletes on memory device, deletes file if design the improper mistake that causes, and can bring major accident.The flow process that needs emphasis to consider in the distributed file system design when therefore removing rubbish data.Conventional way is that the piece that memory device will be stored reports meta data server, and whether transfer to that meta data server arbitrates is rubbish.
But storage along with mass data, the meta data server at the metadata information place of file, one more than one, one is the relation of multi-to-multi for the data block on the memory device and the meta data server of corresponding management data block, mapping relations are very flexible, therefore, traditional reporting-arbitration mechanism judges that the method for junk data can cause size of message to increase severely.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of method and file access server of the data that remove rubbish, to solve the problem that above-mentioned traditional reporting-arbitration mechanism judges that the method for junk data can cause size of message to increase severely at least.
According to an aspect of the present invention, provide a kind of method of the data that remove rubbish, having comprised: the file access server is determined to carry out the data area that junk data is removed, and sends the request of the data that remove rubbish to meta data server; The file access server receives the valid data information that need that meta data server issues carry out the data in the data area that junk data removes; The file access server is according to the definite junk data that needs removing of valid data information, and the data that remove rubbish.
Preferably, need carry out the data area that junk data removes comprises: the data in the one or more memory devices under the file access server.
Preferably, the file access server is determined to carry out the data area that junk data is removed, and send the request of the data that remove rubbish to meta data server, comprise: the file access server is stamped the mark that removes rubbish to the metadata in its internal memory, wherein, metadata is corresponding to the data in the data area that need carry out the junk data removing in the memory device; The file access server sends the request of the data that remove rubbish to all meta data servers corresponding with the metadata of stamping the mark that removes rubbish.
Preferably, the file access server receives the valid data information that need that meta data server issues carry out the data in the scope that junk data removes, comprise: the file access server receives the meta-data pack that meta data server issues, wherein, carry the valid data information of the metadata of stamping the mark that removes rubbish in the meta-data pack.
Preferably, meta data server also comprises before issuing meta-data pack: the meta data server Query Database obtains the valid data information of the metadata of stamping the mark that removes rubbish.
Preferably, the file access server is according to the definite junk data that needs removing of valid data information, and the data that remove rubbish, and comprising: the file access server is stamped the corresponding element data in its internal memory according to valid data information and passed through verification mark; The file access server with all with stamp the mark that removes rubbish, but the data of not stamping in the memory device of the metadata correspondence by verification mark are defined as junk data, and junk data are removed.
According to a further aspect in the invention, provide a kind of file access server, having comprised: determination module is used for determining to carry out the data area that junk data is removed, and sends the request of the data that remove rubbish to meta data server; Receiver module is used to receive the valid data information that need that meta data server issues carry out the data in the data area that junk data removes; Remove module, be used for according to the definite junk data that needs removing of valid data information, and the data that remove rubbish.
Preferably, determination module comprises: the first mark submodule, be used for the metadata of file access server memory is stamped the mark that removes rubbish, and wherein, metadata is corresponding to the data in the data area that need carry out the junk data removing in the memory device; The request submodule is used for sending to all meta data servers corresponding with the metadata of stamping the mark that removes rubbish the request of the data that remove rubbish.
Preferably, receiver module comprises: receive submodule, be used to receive the meta-data pack that meta data server issues, wherein, carry the valid data information of the metadata of stamping the mark that removes rubbish in the meta-data pack.
Preferably, remove module and comprise: the second mark submodule is used for according to valid data information the corresponding element data of file access server memory being stamped and passes through verification mark; Remove submodule, be used for all with stamp the mark that removes rubbish, but the data of not stamping in the memory device of the metadata correspondence by verification mark are defined as junk data, and junk data are removed.
By the present invention, adopt and determine to carry out the data area that junk data is removed, determine and the data that remove rubbish according to the valid data information that meta data server issues, thereby effectively reduced, and then safe, the effect efficiently that have reached that junk data removes at the interacting message between file access server and the meta data server under the multivariate data server environment.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the distributed file system framework according to the embodiment of the invention;
Fig. 2 is the process flow diagram according to the data that remove rubbish of the embodiment of the invention one;
Fig. 3 is the process flow diagram according to the data that remove rubbish of the embodiment of the invention two;
Fig. 4 is the process flow diagram according to the data that remove rubbish of the embodiment of the invention three;
Fig. 5 is the file access server architecture block diagram according to the embodiment of the invention four;
Fig. 6 is the file access server architecture block diagram according to the embodiment of the invention five.
Embodiment
Hereinafter will describe the present invention with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Fig. 1 is the distributed file system framework according to the embodiment of the invention.As shown in Figure 1, in the present embodiment, distributed file system comprises a file access server 10; This document access server hangs with a plurality of memory devices 20 for 10 times, wherein file access server 10 preserve with memory device 20 on the corresponding associated metadata of data block; This distributed file system also comprises the meta data server 30 of the data block on a plurality of corresponding managing memory apparatus 20.Embodiment described in the invention all can adopt the distributed file system framework in the present embodiment.
Embodiment one
Fig. 2 is the process flow diagram according to the data that remove rubbish of the embodiment of the invention one.As shown in Figure 2, may further comprise the steps:
Step S202, file access server determine to carry out the data area that junk data is removed, and send the request of the data that remove rubbish to meta data server.
Step S204, file access server receive the valid data information that need that meta data server issues carry out the data in the data area that junk data removes.
Step S206, the file access server is according to the definite junk data that needs removing of valid data information, and the data that remove rubbish.
In the present embodiment, by determining to carry out the data area that junk data is removed, determine and the data that remove rubbish according to the valid data information that meta data server issues, thereby effectively reduced, and then safe, the effect efficiently that have reached that junk data removes at the interacting message between file access server and the meta data server under the multivariate data server environment.
Wherein, the data area that need carry out the junk data removing comprises: at least two data blocks of physical address contact, perhaps all data blocks in the one or more memory devices under the file access server in the memory device of file access server.
Wherein, step S202 comprises: the file access server is stamped the mark that removes rubbish to the metadata in its internal memory, and wherein, metadata is corresponding to the data in the data area that need carry out the junk data removing in the memory device; The file access server sends the request of the data that remove rubbish to all meta data servers corresponding with the metadata of stamping the mark that removes rubbish.
Wherein, step S204 comprises: the file access server receives the meta-data pack that meta data server issues, and wherein, carries the valid data information of the metadata of stamping the mark that removes rubbish in the meta-data pack.Meta data server also comprises before issuing meta-data pack: the meta data server Query Database obtains the valid data information of the metadata of stamping the mark that removes rubbish.
Wherein, step S204 comprises: the file access server is stamped the corresponding element data in its internal memory according to valid data information and is passed through verification mark; The file access server with all with stamp the mark that removes rubbish, but the data of not stamping in the memory device of the metadata correspondence by verification mark are defined as junk data, and junk data are removed.
Embodiment two
Fig. 3 is the process flow diagram according to the data that remove rubbish of the embodiment of the invention two.As shown in Figure 3, may further comprise the steps:
Step S302, delineation participate in the sweeping away rubbish scope of data block.A lot of memory devices is arranged under the file access server, organize, the service of data access is provided with certain form.What therefore, sweep away rubbish flow process also can flexible configuration: (1) is unit sweep away rubbish (all memory devices under the file server are swept together) with whole file access server.(2) be unit sweep away rubbish (under the file access server memory device sweep away rubbish) one by one with single memory device.For convenience of the data in the managing memory apparatus, one preserves the metadata information of data on the memory device in the internal memory of file access server, and delineation sweeps away rubbish and only need stamp a mark on corresponding metadata information, and sign participates in epicycle and sweeps away rubbish.
Step S304 after delineation finishes, sends the request of sweeping away rubbish to each meta data server.
Step S306, meta data server issue valid data information to the file access server.
Step S308, file access server receive after the meta-data pack of valid data, and valid data metadata corresponding in the file access server memory is stamped mark by checking.If there are not corresponding valid data in the file access server memory, expression has loss of data, should initiate the copying data function.Have only all bags of the transmission of all meta data servers all to receive, just can enter next step, otherwise, expression cancellation epicycle sweeps away rubbish.The reason of doing like this is very simple, if there are not to collect neat all bags, just begins to sweep away rubbish, and the data in the bag of confiscating because do not stamp mark by checking, will be mistakened as into rubbish and sweep.This stage is also important, need to consider the factor of each side, how to determine that all bags all collect together, if certain memory device is unloaded in subordinate phase and how to be handled temporarily, if do not collect together, how to stop epicycle and sweep away rubbish, these problems need appropriate processing.
Step S310, the deletion junk data.If all bags on each meta data server have all been collected together, metadata corresponding has all been stamped the work that just can seek rubbish and deletion by the mark of checking in the respective file access server internal memory.All are stamped and participate in sweeping away rubbish mark, but the data of not stamping by verification mark are identified as junk data, it need be deleted.
Embodiment three
Fig. 4 is the process flow diagram according to the data that remove rubbish of the embodiment of the invention three.As shown in Figure 4, may further comprise the steps:
Step S402 initiates to sweep away rubbish, and initiating method is not limit.
Step S404 to S406 determines to participate in the data area that epicycle sweeps away rubbish, and scope can be the data on the single memory device, also can be the data of all memory devices under the file access server.Can there be data block metadata corresponding information on the memory device in the internal memory of file access server, only the data block metadata corresponding information that participates in sweeping away rubbish need be marked and get final product.The data block scope that definite participation epicycle sweeps away rubbish is most important, take all factors into consideration each side, prevents to cause the mistake deletion.
Step S408 sends the request of sweeping away rubbish for all meta data servers
Step S410, meta data server be to data base querying, the metadata information of qualified data block, and subpackage sends to meta data server.
Step S412, file access server receive the meta-data pack that meta data server sends, and do the judgement of data legitimacy.
Step S414, if the data block in the bag is legal, the corresponding data piece is stamped the mark by checking in the file access server memory.Be after the file access server is received the meta-data pack of the normal data piece that meta data server sends, whenever receive a bag, data block metadata corresponding information was stamped the mark by checking during searching was wrapped in internal memory, if can not find the metadata of corresponding data block in the internal memory, represent that this data block loses, initiate the copying data flow process.
Step S416 to S418 judges whether to receive all bags that meta data server is sent, and initiates the rubbish checking process when each bag that each meta data server is sent has all been collected neat.Otherwise stopping epicycle sweeping away rubbish.
Step S420 in the traversal file access server memory, has stamped in the data block metadata and has participated in sweeping away rubbish sign, but do not stamped the data block by the checking sign, is judged to be junk data, needs to remove.If storage unit sweeps away rubbish one by one, known the rubbish on the memory device after, select next memory device, get back to step S404.
Step S422 is if all memory devices under the file access server have all been swept the epicycle end that sweeps away rubbish.
Embodiment four
Fig. 5 is the file access server architecture block diagram according to the embodiment of the invention four.As shown in Figure 5, this document access server 10 comprises: determination module 11, receiver module 12 and removing module 13.
Wherein, determination module 11 is used for determining to carry out the data area that junk data is removed, and sends the request of the data that remove rubbish to meta data server.Receiver module 12 is used to receive the valid data information that need that meta data server issues carry out the data in the data area that junk data removes.Remove module 13, be used for according to the definite junk data that needs removing of valid data information, and the data that remove rubbish.
In the present embodiment, determine to carry out the data area that junk data is removed by determination module 11, removing module 13 determines and the data that remove rubbish according to the valid data information that meta data server issues, thereby effectively reduced, and then safe, the effect efficiently that have reached that junk data removes at the interacting message between file access server and the meta data server under the multivariate data server environment.
Fig. 6 is the file access server architecture block diagram according to the embodiment of the invention five.As shown in Figure 6, this document access server comprises each functional module of implementing in four: determination module 11, receiver module 12 and removing module 13.
Wherein, determination module 11 comprises: the first mark submodule 111, be used for the metadata of file access server memory is stamped the mark that removes rubbish, and wherein, metadata is corresponding to the data in the data area that need carry out the junk data removing in the memory device; Request submodule 112 is used for sending to all meta data servers corresponding with the metadata of stamping the mark that removes rubbish the request of the data that remove rubbish.
Wherein, receiver module 12 comprises: receive submodule 121, be used to receive the meta-data pack that meta data server issues, wherein, carry the valid data information of the metadata of stamping the mark that removes rubbish in the meta-data pack.
Wherein, remove module 13 and comprise: the second mark submodule 131 is used for according to valid data information the corresponding element data of file access server memory being stamped and passes through verification mark; Remove submodule 132, be used for all with stamp the mark that removes rubbish, but the data of not stamping in the memory device of the metadata correspondence by verification mark are defined as junk data, and junk data are removed.
In the various embodiments described above of the present invention, in distributed file system, a kind of method of novel verification junk data especially is provided on the distributed file system of multivariate data server, in the method, at first draw a circle to approve the scope that participation sweeps away rubbish in the piece of memory device, the data within scope do not participate in sweeping away rubbish; Next each meta data server issues the relevant information of the whole valid data on the memory device to memory device, and memory device is determined to collect after neat all metadata, begins definite refuse cleaning rubbish work of epicycle; Within the delineation scope, but do not receive the data block of meta data server, be identified as junk data by verifying, can be with these data dumps.This method is different from the junk data of traditional reporting-arbitration mode to be determined, at the interacting message that has effectively reduced under the multivariate data server environment between file access server and the meta data server, and safety, efficient, reliable.
The present invention can cooperate conventional synchronous deletion action to use, and periodically removes the junk data on the file access server storage device.Safe and effective, effectively reduce carrying cost, keep the data consistency of file access server and meta data server.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the memory storage and carry out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the method for the data that remove rubbish is characterized in that, comprising:
The file access server is determined to carry out the data area that junk data is removed, and sends the request of the data that remove rubbish to meta data server;
Described file access server receives the valid data information that need that described meta data server issues carry out the data in the data area that junk data removes;
Described file access server need to determine the junk data of removing according to described valid data information, and removes described junk data.
2. method according to claim 1 is characterized in that, the data area that described need carry out the junk data removing comprises:
Data in one or more memory devices under the described file access server.
3. method according to claim 2 is characterized in that, the file access server is determined to carry out the data area that junk data is removed, and sends the request of the data that remove rubbish to meta data server, comprising:
Described file access server is stamped the mark that removes rubbish to the metadata in its internal memory, and wherein, described metadata is corresponding to the data in the data area that need carry out the junk data removing in the described memory device;
Described file access server sends the request of the data that remove rubbish to all meta data servers corresponding with the metadata of stamping the mark that removes rubbish.
4. method according to claim 3 is characterized in that, described file access server receives the valid data information that need that described meta data server issues carry out the data in the scope that junk data removes, comprising:
Described file access server receives the meta-data pack that described meta data server issues, and wherein, carries the valid data information of the metadata of stamping the mark that removes rubbish in the described meta-data pack.
5. method according to claim 4 is characterized in that, described meta data server also comprises before issuing described meta-data pack:
Described meta data server Query Database obtains the described valid data information of stamping the metadata of the mark that removes rubbish.
6. method according to claim 5 is characterized in that, described file access server need to determine the junk data of removing according to described valid data information, and removes described junk data, comprising:
Described file access server is stamped the corresponding element data in its internal memory according to described valid data information and is passed through verification mark;
Described file access server with all with stamp the mark that removes rubbish, but the data of not stamping in the described memory device of the metadata correspondence by verification mark are defined as junk data, and described junk data are removed.
7. a file access server is characterized in that, comprising:
Determination module is used for determining to carry out the data area that junk data is removed, and sends the request of the data that remove rubbish to meta data server;
Receiver module is used to receive the valid data information that need that described meta data server issues carry out the data in the data area that junk data removes;
Remove module, be used for need determining the junk data of removing according to described valid data information, and remove described junk data.
8. file access server according to claim 7 is characterized in that, described determination module comprises:
The first mark submodule is used for the metadata of described file access server memory is stamped the mark that removes rubbish, and wherein, described metadata is corresponding to the data in the data area that need carry out the junk data removing in the described memory device;
The request submodule is used for sending to all meta data servers corresponding with the metadata of stamping the mark that removes rubbish the request of the data that remove rubbish.
9. file access server according to claim 7 is characterized in that, described receiver module comprises:
Receive submodule, be used to receive the meta-data pack that described meta data server issues, wherein, carry the valid data information of the metadata of stamping the mark that removes rubbish in the described meta-data pack.
10. file access server according to claim 7 is characterized in that, described removing module comprises:
The second mark submodule is used for according to described valid data information the corresponding element data of described file access server memory being stamped and passes through verification mark;
Remove submodule, be used for all with stamp the mark that removes rubbish, but the data of not stamping in the described memory device of the metadata correspondence by verification mark are defined as junk data, and described junk data are removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110214180XA CN102279881A (en) | 2011-07-28 | 2011-07-28 | Junk data clearing method and file access server |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110214180XA CN102279881A (en) | 2011-07-28 | 2011-07-28 | Junk data clearing method and file access server |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102279881A true CN102279881A (en) | 2011-12-14 |
Family
ID=45105323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110214180XA Pending CN102279881A (en) | 2011-07-28 | 2011-07-28 | Junk data clearing method and file access server |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102279881A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102421020A (en) * | 2011-12-23 | 2012-04-18 | 深圳市网合科技股份有限公司 | Network television receiver and file management method of network television receiver |
| CN107656695A (en) * | 2016-07-25 | 2018-02-02 | 杭州海康威视数字技术股份有限公司 | A kind of data storage, delet method, device and distributed memory system |
| CN112860679A (en) * | 2021-03-16 | 2021-05-28 | 世纪龙信息网络有限责任公司 | Equipment information management method and device, electronic equipment and storage medium |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5784698A (en) * | 1995-12-05 | 1998-07-21 | International Business Machines Corporation | Dynamic memory allocation that enalbes efficient use of buffer pool memory segments |
| CN1670726A (en) * | 2004-03-17 | 2005-09-21 | 联想(北京)有限公司 | A method for inspecting garbage files in cluster file system |
| CN101009516A (en) * | 2006-01-26 | 2007-08-01 | 华为技术有限公司 | A method and system for data synchronization |
| CN101098504A (en) * | 2006-06-29 | 2008-01-02 | 卢森特技术有限公司 | SMPP message process for SMS rubbish filtering |
| CN101399075A (en) * | 2007-09-28 | 2009-04-01 | 智多星电子科技有限公司 | Electronic data flash memory card with flash memory bad block management |
| CN101609430A (en) * | 2008-06-19 | 2009-12-23 | 威刚科技股份有限公司 | Memory Storage Space Management Method |
| CN101667180A (en) * | 2008-09-03 | 2010-03-10 | 神讯电脑(昆山)有限公司 | System and method for space management of database |
| CN101706817A (en) * | 2009-12-01 | 2010-05-12 | 中兴通讯股份有限公司 | Distributed file system and garbage data cleaning method thereof |
-
2011
- 2011-07-28 CN CN201110214180XA patent/CN102279881A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5784698A (en) * | 1995-12-05 | 1998-07-21 | International Business Machines Corporation | Dynamic memory allocation that enalbes efficient use of buffer pool memory segments |
| CN1670726A (en) * | 2004-03-17 | 2005-09-21 | 联想(北京)有限公司 | A method for inspecting garbage files in cluster file system |
| CN101009516A (en) * | 2006-01-26 | 2007-08-01 | 华为技术有限公司 | A method and system for data synchronization |
| CN101098504A (en) * | 2006-06-29 | 2008-01-02 | 卢森特技术有限公司 | SMPP message process for SMS rubbish filtering |
| CN101399075A (en) * | 2007-09-28 | 2009-04-01 | 智多星电子科技有限公司 | Electronic data flash memory card with flash memory bad block management |
| CN101609430A (en) * | 2008-06-19 | 2009-12-23 | 威刚科技股份有限公司 | Memory Storage Space Management Method |
| CN101667180A (en) * | 2008-09-03 | 2010-03-10 | 神讯电脑(昆山)有限公司 | System and method for space management of database |
| CN101706817A (en) * | 2009-12-01 | 2010-05-12 | 中兴通讯股份有限公司 | Distributed file system and garbage data cleaning method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102421020A (en) * | 2011-12-23 | 2012-04-18 | 深圳市网合科技股份有限公司 | Network television receiver and file management method of network television receiver |
| CN107656695A (en) * | 2016-07-25 | 2018-02-02 | 杭州海康威视数字技术股份有限公司 | A kind of data storage, delet method, device and distributed memory system |
| CN112860679A (en) * | 2021-03-16 | 2021-05-28 | 世纪龙信息网络有限责任公司 | Equipment information management method and device, electronic equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103678337B (en) | Data clearing method, apparatus and system | |
| CN102810089B (en) | Short link system and implementation method based on content | |
| CN107992356A (en) | Block chain affairs block processes method, electronic device and readable storage medium storing program for executing | |
| CN102629247B (en) | Method, device and system for data processing | |
| WO2013143391A1 (en) | Method and system for cleaning up files on device | |
| JP7085063B2 (en) | Blockchain-based content processing methods, devices, devices and storage media | |
| CN101706817B (en) | Distributed file system and garbage data cleaning method thereof | |
| CN102360410B (en) | User operation discovery method of file system and synchronous system utilizing the same | |
| CN103369003A (en) | A method and a system for scanning redundancy files in a mobile device by using cloud computing | |
| CN102456048A (en) | Method and system for processing mass data | |
| CN110995513A (en) | Data sending and receiving method in Internet of things system, Internet of things equipment and platform | |
| CN108197270B (en) | Distributed file system data recovery method | |
| CN103186652A (en) | Distributed data de-duplication system and method thereof | |
| CN104239353B (en) | WEB classification control and log audit method | |
| CN103248696A (en) | Dynamic configuration method for virtual resource in cloud computing environment | |
| CN102486785A (en) | Data synchronization method, device and system | |
| CN103823807A (en) | Data de-duplication method, device and system | |
| CN104348905B (en) | A kind of method and device of off-line PUSH message | |
| CN102279881A (en) | Junk data clearing method and file access server | |
| CN103793530A (en) | Method, device and system for cleaning up business data regularly | |
| CN103294704A (en) | File synchronous system and method | |
| CN103414641A (en) | Neighbor table item release method, device and network equipment | |
| CN104079623A (en) | Method and system for controlling multilevel cloud storage synchrony | |
| CN107426154A (en) | A kind of method for managing black list | |
| CN100473023C (en) | Cleaning method of redundant data of the IPTV system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111214 |
|
| RJ01 | Rejection of invention patent application after publication |