CN107066349A - A kind of method and system of cluster file system data protection - Google Patents
A kind of method and system of cluster file system data protection Download PDFInfo
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- CN107066349A CN107066349A CN201710041805.4A CN201710041805A CN107066349A CN 107066349 A CN107066349 A CN 107066349A CN 201710041805 A CN201710041805 A CN 201710041805A CN 107066349 A CN107066349 A CN 107066349A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1446—Point-in-time backing up or restoration of persistent data
- G06F11/1448—Management of the data involved in backup or backup restore
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1446—Point-in-time backing up or restoration of persistent data
- G06F11/1458—Management of the backup or restore process
- G06F11/1469—Backup restoration techniques
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- Theoretical Computer Science (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
- Storage Device Security (AREA)
Abstract
The invention discloses a kind of method of cluster file system data protection, including：Obtain and be deleted data, and by the deleted data storage under predetermined directories；Judge to whether there is the deleted data more than predetermined recovery time in the predetermined directories；If so, will then exceed corresponding deleted data dump of predetermined recovery time；This method to being deleted data by being managed, when deleting data by deleted data storage for a period of time, and carries out complete deletion again after more than the limitation of predetermined recovery time, before complete deletion, can recover to being deleted data；The invention discloses a kind of system of cluster file system data protection, with above-mentioned beneficial effect.
Description
Technical field
The present invention relates to field of computer technology, the method for more particularly to a kind of cluster file system data protection and it is
System.
Background technology
Existing distributed file system realizes the uniformity and security of data by copy mechanism and log mechanism, still
Cause the situation of loss of data due to the operation such as deleting by mistake under distributed system for user, fail to provide effective mechanism to deleting
The data removed are recovered, and data are once deletion, will be unable to give for change, or even can cause serious loss.Therefore how to realize pair
The management of data is deleted, can be recovered when needed, be further ensured that the safety of data, is that those skilled in the art need solution
Technical problem certainly.
The content of the invention
It is an object of the invention to provide a kind of method and system of cluster file system data protection, realize to deleting data
Management, can be recovered when needed, be further ensured that the safety of data.
In order to solve the above technical problems, the present invention provides a kind of method of cluster file system data protection, including：
Obtain and be deleted data, and by the deleted data storage under predetermined directories；
Judge to whether there is the deleted data more than predetermined recovery time in the predetermined directories；
If so, will then exceed corresponding deleted data dump of predetermined recovery time.
Optionally, by the deleted data storage under predetermined directories, including：
By the deleted data to be stored in the form of hidden file under source directory.
Optionally, judge to whether there is the deleted data more than predetermined recovery time in the predetermined directories, including：
The deletion information of the deleted data is recorded in catalogue is reclaimed；Wherein, the deletion information includes deleting number
According to nodal information, source filename, erasing time；
According to each erasing time in the recovery catalogue, the deleted number more than predetermined recovery time is judged whether
According to.
Optionally, when user recovers to specify deleted data, in addition to：
The corresponding deletion information of deleted data is specified according to described, deleted data recovery is specified to source position by described
Put, and described specify is deleted in the recovery catalogue and be deleted the corresponding deletion information of data.
Optionally, this programme also includes：
Corresponding deletion information is removed according to the clear operation of input in the recovery catalogue, and is deleted corresponding
Data dump.
The present invention also provides a kind of system of cluster file system data protection, including：
Data memory module is deleted, for obtaining deleted data, and by the deleted data storage in predetermined directories
Under；
Judge module, for judging to whether there is the deleted data more than predetermined recovery time in the predetermined directories；
First removes module, for if will exceed corresponding deleted data dump of predetermined recovery time in the presence of if.
Optionally, the deletion data memory module, including：
Memory cell, for by the deleted data to be stored in the form of hidden file under source directory.
Optionally, the judge module, including：
Recording unit, the deletion information for recording the deleted data in catalogue is reclaimed；Wherein, it is described to delete letter
Breath includes nodal information, source filename, the erasing time for deleting data；
Judging unit, when making a reservation for recover for according to each erasing time in the recovery catalogue, judging whether to exceed
Between deleted data.
Optionally, when user recovers to specify deleted data, in addition to：
Recovery module, for specifying the corresponding deletion information of deleted data according to described, number is deleted by described specify
According to recovery to source position, and the corresponding deletion information of the specified deleted data is deleted in the recovery catalogue.
Optionally, this programme also includes：
Second removes module, believes for removing corresponding delete according to the clear operation of input in the recovery catalogue
Breath, and by corresponding deleted data dump.
A kind of method of cluster file system data protection provided by the present invention, including：Obtain and be deleted data, and will
The deleted data storage is under predetermined directories；Judge to whether there is the quilt more than predetermined recovery time in the predetermined directories
Delete data；If so, will then exceed corresponding deleted data dump of predetermined recovery time；
It can be seen that, this method to being deleted data by being managed, when deleting data by deleted one section of data storage
Time, and complete deletion is carried out again after more than the limitation of predetermined recovery time, can be to being deleted data before complete deletion
Recovered, be further ensured that the safety of data, prevented because user misoperation causes data to be deleted the loss brought；
Present invention also offers a kind of system of cluster file system data protection, with above-mentioned beneficial effect, it will not be repeated here.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
The flow chart of the method for the cluster file system data protection that Fig. 1 is provided by the embodiment of the present invention；
The structured flowchart of the system for the cluster file system data protection that Fig. 2 is provided by the embodiment of the present invention.
Embodiment
The core of the present invention is to provide a kind of method and system of cluster file system data protection, realizes to deleting data
Management, can be recovered when needed, be further ensured that the safety of data.
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
A part of 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.
The recovery for deleting data is a key technology for ensureing file system data safety and system reliability, is also to use
The important need at family, if it cannot be guaranteed that delete the recovery of data, the deletion of significant data will be unable to remedy, to user using bringing
Very big potential safety hazard.Therefore, the Preservation tactics that the present embodiment recovers after being deleted for cluster file system data, using increase pair
The managing to resume mechanism of file is deleted, the management to deleting file is realized, the data of deletion a period of time is preserved into, beneficial to data
Recovery, improve file system Information Security.Specifically it refer to Fig. 1, the cluster that Fig. 1 is provided by the embodiment of the present invention
The flow chart of the method for file system data protection；This method can include：
S100, acquisition are deleted data, and by deleted data storage under predetermined directories；
S110, judge in predetermined directories whether there is more than predetermined recovery time deleted data；
S120, if more than if will exceed corresponding deleted data dump of predetermined recovery time；
S130, if the return to step S110 not less than if, realize monitoring persistently to predetermined directories.
Specifically, judging to whether there is in predetermined directories the deleted data more than predetermined recovery time in the present embodiment
Process can be judged or judged according to the preset judgment cycle in real time, naturally it is also possible to be according to system
Busy state determine the judgement cycle, such as when system is busy, judge that the cycle is long, when system is idle, the judgement cycle compares
It is short.The present embodiment is not defined to this.
When user deletes data, system obtains not directly by deleted data dump and is deleted data, and
Store it under predetermined directories.Here predetermined directories selection setting can be carried out by user or system is carried out just
Beginningization is set, and user can also modify to predetermined directories.Predetermined directories are not defined in the present embodiment, as long as depositing
The space of deleted data can temporarily preserved.
Due in order to save Installed System Memory and will not be all deleted data all be useful data, therefore be deleted data
It can not possibly be stored in forever under predetermined directories.Here a maximum duration for preserving deleted data can be set (to make a reservation for
Recovery time), still it is not resumed after a deleted data exceed the time, then it is considered that the deleted data are
Need the data removed.The size of predetermined recovery time is not limited in the present embodiment, it can be actual according to itself by user
Situation is determined, it is possible to which it is modified.Predetermined recovery time here can also set one incessantly in addition, for example
The data corresponding predetermined recovery time that busy and idle time is deleted can be different, and mistake easily occurs in busy, therefore busy is deleted
Except the holding time of data can be grown a bit, corresponding idle is not easy mistake occur, therefore idle is deleted the preservation of data
Time can be with shorter.I.e. the present embodiment can realize that timing removes the long file of erasing time, effective management system
Space, prevents from deleting the excessive space-consuming of file.
When it is determined that exceeding the deleted data of predetermined recovery time in predetermined directories；And these are deleted data dump.
So as to Free up Memory, prevent that deleting file excessively causes space waste.
Based on above-mentioned technical proposal, the method for cluster file system data protection provided in an embodiment of the present invention, by right
Deleted data are managed, when deleting data by deleted data storage for a period of time, and more than predetermined recovery time
Complete deletion is carried out after limitation again, before complete deletion, can recover to being deleted data, be further ensured that data
Safety, is prevented because user misoperation causes data to be deleted the loss brought.
Based on above-described embodiment, deleted data storage can be included under predetermined directories in the present embodiment：
By deleted data to be stored in the form of hidden file under source directory.
Specifically, deleted data are existed under source directory in the way of hiding when deleting data, it is ensured that data are one
It can recover in the section time.
Based on above-described embodiment, judge to whether there is being deleted more than predetermined recovery time in predetermined directories in the present embodiment
Except data can include：
The deletion information for being deleted data is recorded in catalogue is reclaimed；Wherein, deleting information includes deleting the node of data
Information, source filename, erasing time；
According to each erasing time in catalogue is reclaimed, the deleted data more than predetermined recovery time are judged whether.
Specifically, the present embodiment provides a kind of special recovery catalogue, by the file record of deletion to reclaiming in catalogue, lead to
Cross recovery catalogue, deleted file data can be checked, it is necessary to when can from reclaim catalogue in recover.That is user can be with
By realizing the management to being deleted data to the operation for reclaiming catalogue.For example user can directly select it in catalogue is reclaimed
Confirm that unwanted data are directly removed, so as to improve the utilization rate of memory space.Can also be in catalogue be reclaimed to quilt
Delete data quickly to be checked, the basic letter such as the nodal information, source filename, erasing time of checking deleted data
Breath, it is not necessary to searched under to source directory or predetermined directories.The particular content for deleting information is not entered in the present embodiment
Row is limited.User can modify according to the demand of itself to the content included for deleting information.
The information reclaimed in catalogue can be further managed by managing listings, can under recycle bin directory
All deletion files are shown under the particular category according to managing listings information, it is not necessary to be moved through coming file, reduce data
Mobile processing.
Said process is exemplified below：Wherein, trash is reclaims catalogue, and file1, file2 are file, and mnt is predetermined
Catalogue.
When data are deleted, being deleted data will be stored under source directory in the form of hiding, meanwhile, reclaim directory maintenance
One memory space, for inode (node) information of record deletion data, source filename, the information such as erasing time works as deletion
During file1, first by file1 to be hidden in the form of .file1/mnt catalogues under, then, file1 information record is arrived
In trash, if existing .file1 files below catalogue, carry out renaming, such as .file1-recy1 is in tail of file
The special field of addition, prevents from bearing the same name.
Based on above-described embodiment, when user recovers to specify deleted data, this method can also include：
According to the corresponding deletion information of deleted data is specified, deleted data recovery will be specified to source position, and returning
Receive to delete in catalogue and specify the corresponding deletion information of deleted data.
Specifically, when user checks recycle bin directory, can show the information of deleted data, user can check and delete
Except the detailed attributes of file (be deleted data), such as erasing time, original name, owning user etc..Specified file (can be referred to
Surely data are deleted) recovered, it is possible to specify recover position, acquiescence returns to source position.
Wherein, it is necessary in the deleted data that the selected needs of user recover when returning to specified location, it is desirable to user
Input recovers positional information, or selected recovery positional information；After it is determined that recovering positional information, deleted data will be specified extensive
It is multiple at the recovery position, and deleted in catalogue is reclaimed and specify the corresponding deletion information of deleted data.
Said process is still illustrated with the example in above-described embodiment below：
When deleting file (being deleted data) recovery, entered according to the raw filename of record and position to deleting file
Row recovers, and deletion fileinfo is deleted from trash recovery catalogues, and timing is swept to reclaiming file in catalogue
Retouch, when file erasing time is long, it is thoroughly removed, and relevant information is deleted from catalogue is reclaimed, user also may be used
To remove the data reclaimed in catalogue, the data of complete deletion will be unable to recover.
Based on above-described embodiment, this method can also include：
Corresponding deletion information is removed according to the clear operation of input in catalogue is reclaimed, and by corresponding deleted data
Remove.
Specifically, user can be actively by checking, and then actively determine the quilt that needs are eliminated to reclaiming catalogue
Delete data.The utilization rate that can cause system space by the present embodiment is further enhanced, it is to avoid the wave of memory space
Take.
Based on above-mentioned technical proposal, the method for cluster file system data protection provided in an embodiment of the present invention, in distribution
In formula file system, addition is deleted the management of data, and the data of deletion are had into source in the way of hiding first when deleting
Under catalogue, and a special recovery catalogue is provided, the file (being deleted data) of deletion recorded in recovery catalogue, lead to
Cross recovery catalogue, deleted file data can be checked, it is necessary to when can from reclaim catalogue in recover；It is fixed to provide simultaneously
When delete function, the data long to erasing time are thoroughly removed, Free up Memory, prevent delete file excessively cause sky
Between waste.
The system to cluster file system data protection provided in an embodiment of the present invention is introduced below, described below
The system of cluster file system data protection can mutually corresponding ginseng with the method for above-described cluster file system data protection
According to.
It refer to Fig. 2, the structural frames of the system for the cluster file system data protection that Fig. 2 is provided by the embodiment of the present invention
Figure；The system can include：
Data memory module 100 is deleted, for obtaining deleted data, and by deleted data storage in predetermined directories
Under；
Judge module 200, for judging to whether there is the deleted data more than predetermined recovery time in predetermined directories；
First removes module 300, for if will exceed corresponding deleted data dump of predetermined recovery time in the presence of if.
Based on above-described embodiment, deleting data memory module 100 can include：
Memory cell, for by deleted data to be stored in the form of hidden file under source directory.
Based on above-mentioned any embodiment, judge module 200 can include：
Recording unit, the deletion information of data is deleted for being recorded in catalogue is reclaimed；Wherein, deleting information includes deleting
Except the nodal information, source filename, erasing time of data；
Judging unit, for according to each erasing time in catalogue is reclaimed, judging whether more than predetermined recovery time
It is deleted data.
Based on above-described embodiment, when user recovers to specify deleted data, the system can also include：
Recovery module, for according to the corresponding deletion information of deleted data is specified, deleted data recovery will to be specified extremely
Source position, and the corresponding deletion information of deleted data is specified in deletion in catalogue is reclaimed.
Based on above-described embodiment, the system can also include：
Second removes module, for removing corresponding deletion information according to the clear operation of input in catalogue is reclaimed, and
By corresponding deleted data dump.
The embodiment of each in specification is described by the way of progressive, and what each embodiment was stressed is and other realities
Apply the difference of example, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment
Speech, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is referring to method part illustration
.
Professional further appreciates that, with reference to the unit of each example of the embodiments described herein description
And algorithm steps, can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software, generally describes the composition and step of each example according to function in the above description.These
Function is performed with hardware or software mode actually, depending on the application-specific and design constraint of technical scheme.Specialty
Technical staff can realize described function to each specific application using distinct methods, but this realization should not
Think beyond the scope of this invention.
Directly it can be held with reference to the step of the method or algorithm that the embodiments described herein is described with hardware, processor
Capable software module, or the two combination are implemented.Software module can be placed in random access memory (RAM), internal memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
Detailed Jie has been carried out to a kind of method and system of cluster file system data protection provided by the present invention above
Continue.Specific case used herein is set forth to the principle and embodiment of the present invention, and the explanation of above example is only
It is the method and its core concept for being used to help understand the present invention.It should be pointed out that for those skilled in the art
For, under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention, these improve and repaiied
Decorations are also fallen into the protection domain of the claims in the present invention.
Claims (10)
1. a kind of method of cluster file system data protection, it is characterised in that including：
Obtain and be deleted data, and by the deleted data storage under predetermined directories；
Judge to whether there is the deleted data more than predetermined recovery time in the predetermined directories；
If so, will then exceed corresponding deleted data dump of predetermined recovery time.
2. the method for cluster file system data protection according to claim 1, it is characterised in that by the deleted number
According to being stored under predetermined directories, including：
By the deleted data to be stored in the form of hidden file under source directory.
3. the method for cluster file system data protection according to claim 1 or 2, it is characterised in that judge described pre-
Determine to whether there is the deleted data more than predetermined recovery time in catalogue, including：
The deletion information of the deleted data is recorded in catalogue is reclaimed；Wherein, the information of deleting includes deleting data
Nodal information, source filename, erasing time；
According to each erasing time in the recovery catalogue, the deleted data more than predetermined recovery time are judged whether.
4. the method for cluster file system data protection according to claim 3, it is characterised in that when user recovers to specify
When being deleted data, in addition to：
The corresponding deletion information of deleted data is specified according to described, deleted data recovery is specified to source position by described, and
Described specify, which is deleted, in the recovery catalogue is deleted the corresponding deletion information of data.
5. the method for cluster file system data protection according to claim 4, it is characterised in that also include：
Corresponding deletion information is removed according to the clear operation of input in the recovery catalogue, and by corresponding deleted data
Remove.
6. a kind of system of cluster file system data protection, it is characterised in that including：
Data memory module is deleted, for obtaining deleted data, and by the deleted data storage under predetermined directories；
Judge module, for judging to whether there is the deleted data more than predetermined recovery time in the predetermined directories；
First removes module, for if will exceed corresponding deleted data dump of predetermined recovery time in the presence of if.
7. the system of cluster file system data protection according to claim 6, it is characterised in that the deletion data are deposited
Module is stored up, including：
Memory cell, for by the deleted data to be stored in the form of hidden file under source directory.
8. the system of the cluster file system data protection according to claim 6 or 7, it is characterised in that the judgement mould
Block, including：
Recording unit, the deletion information for recording the deleted data in catalogue is reclaimed；Wherein, the deletion packet
Include nodal information, source filename, the erasing time for deleting data；
Judging unit, for according to each erasing time in the recovery catalogue, judging whether more than predetermined recovery time
It is deleted data.
9. the system of cluster file system data protection according to claim 8, it is characterised in that when user recovers to specify
When being deleted data, in addition to：
Recovery module, for specifying the corresponding deletion information of deleted data according to described, specifies deleted data extensive by described
It is multiple to delete the corresponding deletion information of the specified deleted data to source position, and in the recovery catalogue.
10. the system of cluster file system data protection according to claim 9, it is characterised in that also include：
Second removes module, for removing corresponding deletion information according to the clear operation of input in the recovery catalogue, and
By corresponding deleted data dump.
Priority Applications (1)
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| CN201710041805.4A CN107066349A (en) | 2017-01-20 | 2017-01-20 | A kind of method and system of cluster file system data protection |
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| CN201710041805.4A CN107066349A (en) | 2017-01-20 | 2017-01-20 | A kind of method and system of cluster file system data protection |
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| CN107861999A (en) * | 2017-10-20 | 2018-03-30 | 北京集奥聚合科技有限公司 | The processing method and system of cold data in a kind of hdfs |
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| CN108549698A (en) * | 2018-04-16 | 2018-09-18 | Oppo广东移动通信有限公司 | Document handling method, device, mobile terminal and computer readable storage medium |
| CN108897498A (en) * | 2018-06-29 | 2018-11-27 | 郑州云海信息技术有限公司 | Cluster file system data fast deleting method, device, equipment |
| CN109359091A (en) * | 2018-09-26 | 2019-02-19 | Oppo广东移动通信有限公司 | File management method, device, terminal and computer readable storage medium |
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Cited By (10)
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| CN107861999A (en) * | 2017-10-20 | 2018-03-30 | 北京集奥聚合科技有限公司 | The processing method and system of cold data in a kind of hdfs |
| CN108228813A (en) * | 2017-12-29 | 2018-06-29 | 北京奇虎科技有限公司 | The delet method and device of replica database in distributed system |
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| CN108897498A (en) * | 2018-06-29 | 2018-11-27 | 郑州云海信息技术有限公司 | Cluster file system data fast deleting method, device, equipment |
| CN109359091A (en) * | 2018-09-26 | 2019-02-19 | Oppo广东移动通信有限公司 | File management method, device, terminal and computer readable storage medium |
| CN109359091B (en) * | 2018-09-26 | 2021-03-26 | Oppo广东移动通信有限公司 | File management method, device, terminal and computer readable storage medium |
| CN110413587A (en) * | 2019-06-26 | 2019-11-05 | 苏州浪潮智能科技有限公司 | A kind of method and apparatus of aging history data |
| CN110602344A (en) * | 2019-09-20 | 2019-12-20 | 北京维山科技有限公司 | High-speed shooting instrument and shooting method thereof |
| CN110888757A (en) * | 2019-10-28 | 2020-03-17 | 江西咚咚体育有限公司 | Method and device for automatically backing up data and computer readable storage medium |
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