CN106528331A - Data recovery method and device - Google Patents
Data recovery method and device Download PDFInfo
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- CN106528331A CN106528331A CN201610931501.0A CN201610931501A CN106528331A CN 106528331 A CN106528331 A CN 106528331A CN 201610931501 A CN201610931501 A CN 201610931501A CN 106528331 A CN106528331 A CN 106528331A
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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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2201/00—Indexing scheme relating to error detection, to error correction, and to monitoring
- G06F2201/80—Database-specific techniques
Abstract
The invention discloses a data recovery method and device. The device comprises an acquisition module, a judgment module and a recovery module, wherein the acquisition module is used for acquiring a comparison result from a session cache of a cloud service; the comparison result comprises terminal information, data type information, first version number information and difference data; the judgment module is used for judging whether the newest version number of a data type of a terminal in a system database of the cloud service is the same with a first version number; and the recovery module is used for carrying out a data recovery operation on data of the newest version number of the data type of the terminal in the system database according to the difference data in a case that the newest version number is the same with the first version number. According to the data recovery method and device disclosed by the invention, the data of the system database can be rapidly and accurately recovered to data of a certain backup node.
Description
Technical field
The present invention relates to technical field of data processing, more particularly to a kind of method and apparatus of data recovery.
Background technology
With the fast development of terminal technology, various types of terminals are continued to bring out, such as desktop computer, notebook computer, hand
Machine, panel computer etc., these terminals have become the important tool of people's routine work and life, are got over by the frequency that people use
Come higher.User can produce various data during using terminal in the terminal, such as photo, video file,
The data such as contact person.Accumulation over time, the data stored in terminal are more and more, and the memory capacity of terminal is limited
, so, the data in terminal are backed up by many users by cloud service.It is in order to prevent loss of data, most of at present
Cloud service has possessed the function of automatic duplicating of data, and the data in system database periodically can be backuped to Backup Data by cloud service
In storehouse, once the loss of data in system database, using the Backup Data in backup database in system database
Data are recovered.But, if the full backup data in backup database are all returned in system database, during recovery
Between longer, efficiency it is poor.
The content of the invention
Present invention is primarily targeted at a kind of method and apparatus of data recovery is proposed, will be the data of system database fast
Speed accurately returns to data during a certain backup node.
For achieving the above object, the device of a kind of data recovery that the present invention is provided, including：
Acquisition module, for comparing result is obtained from the session cache of cloud service, the comparing result includes：Terminal is believed
Breath, data type information, first version information and variance data；
Judge module, for judge the terminal in the system database of the cloud service the data type most
Whether new version number is identical with the first version number；
Recovery module, in the case of the latest edition number with the first version identical, according to the difference
Heteromerism evidence, to the system database in the data of latest edition number of the data type of the terminal to carry out data extensive
It is multiple to operate.
Further, the system database is used to storing the various data types of each terminal in the cloud service
The data of latest edition number.
Further, the variance data be the second edition number of the data type of the terminal data relative to
The newly-increased data of the data of the first version number of the data type of the terminal, delete data and modification data.
Further, the data storage of the second edition number is in the backup database of the cloud service；
The backup database is used for each version for the various data types for storing each terminal in the cloud service
Number data.
Further, the judge module, is additionally operable to：
When the comparing result is received, the data type of the terminal in the system database is judged
Whether the data of latest edition number lock, if so, then terminate data recovery operation；If it is not, then to the latest edition number
Data carry out locking operation；
Described device, also includes：
Unlocked state, at the end of operating when the data recovery, to the system database in the terminal
Data after the recovery of the data type are unlocked operation.
Additionally, for achieving the above object, the present invention also proposes a kind of method of data recovery, including：
Comparing result is obtained from the session cache of cloud service, the comparing result includes：End message, data type letter
Breath, first version information and variance data；
Whether judge the latest edition number of the data type of the terminal in the system database of the cloud service
It is identical with the first version number；
In the case of the latest edition number with the first version identical, according to the variance data, to described
The data of the latest edition number of the data type of the terminal in system database carry out data recovery operation.
Further, the system database is used to storing the various data types of each terminal in the cloud service
The data of latest edition number.
Further, the variance data be the second edition number of the data type of the terminal data relative to
The newly-increased data of the data of the first version number of the data type of the terminal, delete data and modification data.
Further, the data storage of the second edition number is in the backup database of the cloud service；
The backup database is used for each version for the various data types for storing each terminal in the cloud service
Number data.
Further, methods described, also includes：
When the comparing result is received, the data type of the terminal in the system database is judged
Whether the data of latest edition number lock, if so, then terminate data recovery operation；If it is not, then to the latest edition number
Data carry out locking operation；
At the end of the data recovery is operated, to the system database in the terminal the data type
Data after recovery are unlocked operation.
The method and apparatus of data recovery proposed by the present invention, using Data Comparison result, by the newest of system database
The data recovery of version only includes the data of indicated release number to data during arbitrary backup node before in the comparing result
The variance data and data of latest edition number between, so can be to the data of current latest edition using the variance data
Recovered.The data of system database fast and accurately can be returned to the present invention data during a certain backup node.
Description of the drawings
Composition structural representations of the Fig. 1 for the device of the data recovery of first embodiment of the invention；
Composition structural representations of the Fig. 2 for the device of the data recovery of second embodiment of the invention；
Flow charts of the Fig. 3 for the method for the data recovery of third embodiment of the invention；
Flow charts of the Fig. 4 for the method for the data recovery of fourth embodiment of the invention；
The realization of the object of the invention, functional characteristics and advantage will be described further in conjunction with the embodiments referring to the drawings.
Specific embodiment
It should be appreciated that specific embodiment described herein is not intended to limit the present invention only to explain the present invention.
As shown in figure 1, first embodiment of the invention proposes a kind of device of data recovery, consisting of portion is specifically included
Point：
1) acquisition module 101, for comparing result is obtained from the session cache of cloud service, the comparing result includes：
End message, data type information, first version information and variance data.
The end message is the information of the terminal use registered in the cloud service.
The data type includes：Contact person, message registration, note, notepad, quarter-bell, calendar and bookmark.
First version number is the data type of terminal during initiation Data Comparison operation in the system number
According to the version number in storehouse.
The variance data is the data of the second edition number of the data type of the terminal relative to the terminal
The data type first version number data newly-increased data, delete data and modification data.
The data storage of the second edition number is in the backup database of the cloud service.
The system database is used for the latest edition of the various data types for storing each terminal in the cloud service
Number data.
The backup database is used for each version for the various data types for storing each terminal in the cloud service
Number data.
2) judge module 102, for judging the data class of the terminal in the system database of the cloud service
Whether the latest edition number of type is identical with the first version number；
If so, recovery module 103 is then triggered, data recovery operation is performed；
If it is not, the latest edition number of the data type of the terminal in then illustrating the system database occurs
Change, needs the data by the data of the latest edition number with the second edition number to be contrasted again.
Specifically, judge module 102, are additionally operable to：
When the comparing result is received, the data type of the terminal in the system database is judged
Whether the data of latest edition number lock, if so, then illustrate that the data of the latest edition are currently being used or enter
During row updates, terminate data recovery operation；If it is not, locking operation is carried out to the data of the latest edition number then, to prevent
Behaviour is modified, deletes or added to the data data of latest edition described in terminal-pair described in recovery process for stating latest edition
Make.
3) recovery module 103, in the case of the latest edition number with the first version identical, according to institute
State variance data, to the system database in the data of latest edition number of the data type of the terminal enter line number
According to recovery operation.
Specifically, recovery module 103, including：
Newly-increased unit, for the newly-increased data in the variance data are added in the data of the latest edition, and
Minor release/point release is set for the newly-increased data, at the same time, Jia 1 on the basis of the latest edition number, new newest of formation
Version number.
Modification unit, for the modification data in the variance data are added in the data of the latest edition, and
Minor release/point release is set for the modification data, at the same time, Jia 1 on the basis of the latest edition number, formation is new newest
Version number.
Unit is deleted, for the deletion data in the variance data are searched in the data of the latest edition, and will
The status indicator status of the deletion data in the latest edition is labeled as 0, at the same time, in the latest edition number
On the basis of Jia 1, form new latest edition number.
In cloud service, it is that the data in each database arrange special topic mark status, as status=0, represents
The data are in normal condition；As status=1, the content for deleting the data is represented, but the data can be carried out
Recovery operation；As status=2, data described in complete deletion are represented, and recovery operation can not be carried out.
Further, described device also includes：
Unlocked state, at the end of operating when the data recovery, to the system database in the terminal
Data after the recovery of the data type are unlocked operation.The data of the latest edition are locked and are unlocked with behaviour
Make, be for the uniformity for ensureing the data of the latest edition in data recovery procedure.
As shown in Fig. 2 second embodiment of the invention proposes a kind of device of data recovery, consisting of portion is specifically included
Point：
1) receiver module 201, for the data recovery request information that receiving terminal sends, the data recovery request letter
Breath includes：Comparing result index information.
2) acquisition module 202, for according to the comparing result index information in the data recovery request information from described
Corresponding comparing result is obtained in the session cache of cloud service, starts to perform data recovery operation.
The comparing result includes：End message, data type information, first version information and variance data.
The end message is the user profile of the terminal.
The data type includes：Contact person, message registration, note, notepad, quarter-bell, calendar and bookmark.
First version number is the data type of terminal during initiation Data Comparison operation in the MySQL numbers
According to the version number in storehouse..
The MySQL database is equivalent to the system database in first embodiment of the invention.The MySQL database position
In the cloud service, for storing the number of the latest edition number of the various data types of each terminal in the cloud service
According to.
The variance data is the data of the second edition number of the data type of the terminal relative to the terminal
The data type first version number data newly-increased data, delete data and modification data.
The data storage of the second edition number is in the Mongo databases of the cloud service.
The Mongo databases are equivalent to the backup database in the first embodiment of the invention, described for storing
The data of each version number of the various data types of each terminal in cloud service.
3) pretreatment module 203, for carrying out the data recovery request pretreatment operation, judge to send the data
Whether the terminal of recovery request is registered in the cloud service, and if so, then triggering locks module 204；If it is not, then refusing described
Data recovery request.
4) module 204 is locked, for judging the newest of the data type of the terminal in the MySQL database
Whether the data of version number lock；
If so, then illustrate that the data of the latest edition are currently being used or are updated, terminate data extensive
It is multiple to operate；
If it is not, then carrying out locking operation to the data of the latest edition number, existed with the data for preventing the latest edition
Described in recovery process, operation is modified, deletes or added to the data of latest edition described in terminal-pair.
5) judge module 205, for judging the data class of the terminal in the MySQL database of the cloud service
Whether the latest edition number of type is identical with the first version number；
If so, then perform data recovery operation；
If it is not, the latest edition number of the data type of the terminal in then illustrating the MySQL database is sent out
Change more, need the data by the data of the latest edition number with the second edition number to be contrasted again.
6) recovery module 206, in the case of the latest edition number with the first version identical, according to institute
State variance data, to the system database in the data of latest edition number of the data type of the terminal enter line number
According to recovery operation.
Specifically, recovery module 206, including：
Newly-increased unit, for the newly-increased data in the variance data are added in the data of the latest edition, and
Minor release/point release is set for the newly-increased data, at the same time, Jia 1 on the basis of the latest edition number, new newest of formation
Version number.
Modification unit, for the modification data in the variance data are added in the data of the latest edition, and
Minor release/point release is set for the modification data, at the same time, Jia 1 on the basis of the latest edition number, formation is new newest
Version number.
Unit is deleted, for the deletion data in the variance data are searched in the data of the latest edition, and will
The status indicator status of the deletion data in the latest edition is labeled as 0, at the same time, in the latest edition number
On the basis of Jia 1, form new latest edition number.
In cloud service, it is that the data in each database arrange special topic mark status, as status=0, represents
The data are in normal condition；As status=1, the content for deleting the data is represented, but the data can be carried out
Recovery operation；As status=2, data described in complete deletion are represented, and recovery operation can not be carried out.
7) unlocked state 207, for when the data recovery operate at the end of, to the system database in the end
Data after the recovery of the data type at end are unlocked operation.The data of the latest edition are locked and unlocked
Operation, is for the uniformity for ensureing the data of the latest edition in data recovery procedure.
As shown in figure 3, third embodiment of the invention proposes a kind of method of data recovery, following steps are specifically included：
Step S301, obtains comparing result from the session cache of cloud service, and the comparing result includes：End message,
Data type information, first version information and variance data.
The end message is the information of the terminal use registered in the cloud service.
The data type includes：Contact person, message registration, note, notepad, quarter-bell, calendar and bookmark.
First version number is the data type of terminal during initiation Data Comparison operation in the system number
According to the version number in storehouse.
The variance data is the data of the second edition number of the data type of the terminal relative to the terminal
The data type first version number data newly-increased data, delete data and modification data.
The data storage of the second edition number is in the backup database of the cloud service.
The system database is used for the latest edition of the various data types for storing each terminal in the cloud service
Number data.
The backup database is used for each version for the various data types for storing each terminal in the cloud service
Number data.
Step S302, judges the latest edition of the data type of the terminal in the system database of the cloud service
Whether this number identical with the first version number；
If so, then execution step S303, performs data recovery operation；
If it is not, the latest edition number of the data type of the terminal in then illustrating the system database occurs
Change, needs the data by the data of the latest edition number with the second edition number to be contrasted again.
Specifically, before step S302, methods described also includes：
When the comparing result is received, the data type of the terminal in the system database is judged
Whether the data of latest edition number lock, if so, then illustrate that the data of the latest edition are currently being used or enter
During row updates, terminate data recovery operation；If it is not, locking operation is carried out to the data of the latest edition number then, to prevent
Behaviour is modified, deletes or added to the data data of latest edition described in terminal-pair described in recovery process for stating latest edition
Make.
Step S303, in the case of the latest edition number with the first version identical, according to the difference number
According to, to the system database in the data of latest edition number of the data type of the terminal carry out data recovery behaviour
Make.
Specifically, step S303, including：
Newly-increased data in the variance data are added in the data of the latest edition, and are the newly-increased data
Minor release/point release is set, at the same time, Jia 1 on the basis of the latest edition number, form new latest edition number.
Modification data in the variance data are added in the data of the latest edition, and are the modification data
Minor release/point release is set, at the same time, Jia 1 on the basis of the latest edition number, form new latest edition number.
The deletion data in the variance data are searched in the data of the latest edition, and by the latest edition
The status indicator status of the deletion data be labeled as 0, at the same time, Jia 1 on the basis of the latest edition number, shape
The latest edition number of Cheng Xin.
In cloud service, it is that the data in each database arrange special topic mark status, as status=0, represents
The data are in normal condition；As status=1, the content for deleting the data is represented, but the data can be carried out
Recovery operation；As status=2, data described in complete deletion are represented, and recovery operation can not be carried out.
Further, methods described also includes：
At the end of the data recovery is operated, to the system database in the terminal the data type
Data after recovery are unlocked operation.The data of the latest edition are locked and unlocked with operation, is to ensure
State uniformity of the data of latest edition in data recovery procedure.
As shown in figure 4, fourth embodiment of the invention proposes a kind of method of data recovery, following steps are specifically included：
Step S401：The data recovery request information that cloud service receiving terminal sends, the data recovery request information
Including：Comparing result index information.
Step S402, the cloud service is according to the comparing result index information in the data recovery request information from described
Corresponding comparing result is obtained in the session cache of cloud service, starts to perform data recovery operation.
The comparing result includes：End message, data type information, first version information and variance data.
The end message is the user profile of the terminal.
The data type includes：Contact person, message registration, note, notepad, quarter-bell, calendar and bookmark.
First version number is the data type of terminal during initiation Data Comparison operation in the MySQL numbers
According to the version number in storehouse..
The MySQL database is equivalent to the system database in first embodiment of the invention and 3rd embodiment.It is described
MySQL database be located at the cloud service in, for store each terminal in the cloud service various data types most
The data of new version number.
The variance data is the data of the second edition number of the data type of the terminal relative to the terminal
The data type first version number data newly-increased data, delete data and modification data.
The data storage of the second edition number is in the Mongo databases of the cloud service.
The Mongo databases equivalent to the first embodiment of the invention and the backup database in 3rd embodiment,
For storing the data of each version number of the various data types of each terminal in the cloud service.
Step S403, the cloud service carry out pretreatment operation to the data recovery request, judge to send the data
Whether the terminal of recovery request is registered in the cloud service, if so, then execution step S404；If it is not, then refusing the number
According to recovery request.
Step S404, judges the latest edition number of the data type of the terminal in the MySQL database
Whether data lock；
If so, then recover failure, illustrate that the data of the latest edition, just in data syn-chronization, are please updated the data after a while again
If it is not, then execution step S405.
The data of the latest edition number are carried out locking operation by step S405, to prevent the data of the latest edition
Described in recovery process, operation is modified, deletes or added to the data of latest edition described in terminal-pair.
Step S406, judge the terminal in the MySQL database of the cloud service the data type it is newest
Whether version number is identical with the first version number；
If so, then execution step S407；
If it is not, then recovering failure, terminal data changed, please comparison data again；In illustrating the MySQL database
The latest edition number of the data type of the terminal occur change, need by the data of the latest edition number with it is described
The data of the second edition number are contrasted again.
Recover failure, point out user data to change, please comparison data again
Step S407, in the case of the latest edition number with the first version identical, according to the difference number
According to, to the system database in the data of latest edition number of the data type of the terminal carry out data recovery behaviour
Make.
Specifically, step S407, including：
Newly-increased data in the variance data are added in the data of the latest edition, and are the newly-increased data
Minor release/point release is set, at the same time, Jia 1 on the basis of the latest edition number, form new latest edition number.
Modification data in the variance data are added in the data of the latest edition, and are the modification data
Minor release/point release is set, at the same time, Jia 1 on the basis of the latest edition number, form new latest edition number.
The deletion data in the variance data are searched in the data of the latest edition, and by the latest edition
The status indicator status of the deletion data be labeled as 0, at the same time, Jia 1 on the basis of the latest edition number, shape
The latest edition number of Cheng Xin.
In cloud service, it is that the data in each database arrange special topic mark status, as status=0, represents
The data are in normal condition；As status=1, the content for deleting the data is represented, but the data can be carried out
Recovery operation；As status=2, data described in complete deletion are represented, and recovery operation can not be carried out.
Step S408, when the data recovery operate at the end of, to the system database in the terminal described in
Data after the recovery of data type are unlocked operation.The data of the latest edition are locked and unlocked with operation, is
In order to ensure uniformity of the data of the latest edition in data recovery procedure.
It should be noted that herein, term " including ", "comprising" or its any other variant are intended to non-row
His property is included, so that a series of process, method, article or device including key elements not only include those key elements, and
And also include other key elements being not expressly set out, or also include for this process, method, article or device institute inherently
Key element.In the absence of more restrictions, the key element for being limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
Also there is other identical element in the process of key element, method, article or device.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on such understanding, technical scheme is substantially done to prior art in other words
The part for going out contribution can be embodied in the form of software product, and the computer software product is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), use so that a station terminal equipment including some instructions (can be mobile phone, computer, clothes
Business device, air-conditioner, or network equipment etc.) perform method described in each embodiment of the invention.
The preferred embodiments of the present invention are these are only, the scope of the claims of the present invention is not thereby limited, it is every using this
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of device of data recovery, it is characterised in that described device includes：
Acquisition module, for comparing result is obtained from the session cache of cloud service, the comparing result includes：End message,
Data type information, first version information and variance data；
Judge module, for judging the latest edition of the data type of the terminal in the system database of the cloud service
Whether this number identical with the first version number；
Recovery module, in the case of the latest edition number with the first version identical, according to the difference number
According to, to the system database in the data of latest edition number of the data type of the terminal carry out data recovery behaviour
Make.
2. the device of data recovery according to claim 1, it is characterised in that the system database is used to store described
The data of the latest edition number of the various data types of each terminal in cloud service.
3. the device of data recovery according to claim 1, it is characterised in that the variance data is the institute of the terminal
The data of the second edition number of data type are stated relative to the data of the first version number of the data type of the terminal
Newly-increased data, deletion data and modification data.
4. the device of data recovery according to claim 3, it is characterised in that the data storage of the second edition number exists
In the backup database of the cloud service；
The backup database is used for each version number of the various data types for storing each terminal in the cloud service
Data.
5. the device of data recovery according to claim 1, it is characterised in that the judge module, is additionally operable to：
When the comparing result is received, judge the terminal in the system database the data type it is newest
Whether the data of version number lock, if so, then terminate data recovery operation；If it is not, then data to the latest edition number
Carry out locking operation；
Described device, also includes：
Unlocked state, for when the data recovery operate at the end of, to the system database in the terminal described in
Data after the recovery of data type are unlocked operation.
6. a kind of method of data recovery, it is characterised in that methods described includes：
Comparing result is obtained from the session cache of cloud service, the comparing result includes：End message, data type information,
First version information and variance data；
Judge the terminal in the system database of the cloud service the data type latest edition number whether with institute
State first version number identical；
In the case of the latest edition number with the first version identical, according to the variance data, to the system
The data of the latest edition number of the data type of the terminal in database carry out data recovery operation.
7. the method for data recovery according to claim 6, it is characterised in that the system database is used to store described
The data of the latest edition number of the various data types of each terminal in cloud service.
8. the method for data recovery according to claim 6, it is characterised in that the variance data is the institute of the terminal
The data of the second edition number of data type are stated relative to the data of the first version number of the data type of the terminal
Newly-increased data, deletion data and modification data.
9. the method for data recovery according to claim 8, it is characterised in that the data storage of the second edition number exists
In the backup database of the cloud service；
The backup database is used for each version number of the various data types for storing each terminal in the cloud service
Data.
10. the method for data recovery according to claim 6, it is characterised in that methods described, also includes：
When the comparing result is received, judge the terminal in the system database the data type it is newest
Whether the data of version number lock, if so, then terminate data recovery operation；If it is not, then data to the latest edition number
Carry out locking operation；
When the data recovery operate at the end of, to the system database in the terminal the data type recovery
Data afterwards are unlocked operation.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109918386A (en) * | 2019-01-31 | 2019-06-21 | 北京明略软件系统有限公司 | A kind of data reconstruction method and device, computer readable storage medium |
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