CN107273243A - The data backup device of distributed data base - Google Patents
The data backup device of distributed data base Download PDFInfo
- Publication number
- CN107273243A CN107273243A CN201710392948.XA CN201710392948A CN107273243A CN 107273243 A CN107273243 A CN 107273243A CN 201710392948 A CN201710392948 A CN 201710392948A CN 107273243 A CN107273243 A CN 107273243A
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- Prior art keywords
- data
- backup
- database
- distributed
- node
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Classifications
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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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
Abstract
The invention provides a kind of data backup device of distributed data base, wherein, device includes：Judging unit, the key property of the data in database node for judging access, wherein, distributed data base system is made up of multiple database nodes；Determining unit, the backup number for determining the data according to the key property.The present invention can both save database resource, can ensure the safety of critical data again.
Description
Technical field
The present invention relates to field of computer technology, more particularly to the distributed data base without Centroid realization side
Method, is exactly specifically a kind of data backup device of distributed data base.
Background technology
With the fast development of computer technology and network technology, data sharing and information exchange also become increasingly frequently,
In data sharing and information interactive process, database plays key effect, wherein, database is backed up to critical data
It is the Core Feature of database.
Existing database mainly includes master-slave mode backup mode and center type backup mode to data backup.Wherein, principal and subordinate
Formula backup mode refers to that Database Systems are constituted by primary database and from database, and primary database is mainly used in the read-write to affairs
Operation, and from database be mainly used in backup primary database in the data that store, and guarantee is from the data in database and main number
Consistent, the loss for preventing hang-up or catastrophic failure from causing loss of data in primary database and causing according to the data in storehouse.But
It is that, if broken down from database with primary database simultaneously, can equally cause loss of data, still there is security risk；And
And safety status classification can not be carried out to data, no matter whether the data of primary database write-in are important, it is required for from database
It is middle to be backed up, and a primary database is necessarily required to one and corresponded to therewith from database, wastes database resource, and nothing
Method carries out multiple duplication to critical data.
Center type backup mode refers to Database Systems by a central database and multiple from database, central database
Back up all data from database, i.e. be written and read operation from database, central database and all from database
Data are consistent.Center type backup mode is compared with master-slave mode backup mode, although save database to a certain extent
Resource, but if central database is shut down or broken down, all Backup Datas may all be lost, and security is low；And center
The data storage pressure of database is big；Center type backup mode equally can not carry out multiple duplication to critical data, it is impossible to logarithm
According to progress safety classification storage, and all data are required to backup, waste database resource.
Therefore, those skilled in the art need a kind of method that database carries out carrying out safety backup to data of researching and developing badly, are improving
While critical data safe class, database resource is reduced.
The content of the invention
In view of this, the technical problem to be solved in the present invention is the data backup dress for providing a kind of distributed data base
Put, solve existing database it cannot be guaranteed that the safety of critical data, and database resource is the problem of waste serious.
In order to solve the above-mentioned technical problem, a kind of data of distributed data base of embodiment of the invention offer are standby
Part device, including：Judging unit, the key property of the data in database node for judging access, wherein, distributed number
It is made up of according to storehouse system multiple database nodes；Determining unit, the backup for determining the data according to the key property
Number.
The embodiment of the present invention also provides a kind of computer-readable medium for including computer executed instructions, described
When computer executed instructions are handled via data processing equipment, the data processing equipment is caused to perform the number of distributed data base
According to backup method.
Understood according to the above-mentioned embodiment of the present invention, the data backup device of distributed data base at least with
Lower beneficial effect：The backup number of data is determined according to the key property of data in database node, further according to backup number by data
Backed up in disparate databases node；Further, it is also possible to which the residual life for being accessed number of times or data according to data is repaiied
The backup number of correction data, both saves database resource, can ensure the safety of critical data again, can be according to the important of data
Grade carries out classification backup, reduces the pressure of central database data storage, reduces the pressure of network data transmission, improves user
Experience Degree.
It is to be understood that above-mentioned general description and detailed description below are merely illustrative and illustrative, it is not
Can the limitation scope of the invention to be advocated.
Brief description of the drawings
Following appended accompanying drawing is a part for the specification of the present invention, and it depicts example of the present utility model and implemented
Example, appended accompanying drawing is used for illustrating the principle of the present invention together with the description of specification.
A kind of embodiment one of the data back up method for distributed data base that Fig. 1 provides for the specific embodiment of the invention
Flow chart；
A kind of embodiment two of the data back up method for distributed data base that Fig. 2 provides for the specific embodiment of the invention
Flow chart；
A kind of embodiment three of the data back up method for distributed data base that Fig. 3 provides for the specific embodiment of the invention
Flow chart；
A kind of example IV of the data back up method for distributed data base that Fig. 4 provides for the specific embodiment of the invention
Flow chart；
A kind of embodiment one of the data backup device for distributed data base that Fig. 5 provides for the specific embodiment of the invention
Structural representation；
A kind of embodiment two of the data backup device for distributed data base that Fig. 6 provides for the specific embodiment of the invention
Structural representation；
A kind of embodiment three of the data backup device for distributed data base that Fig. 7 provides for the specific embodiment of the invention
Structural representation.
Embodiment
For the purpose, technical scheme and advantage of the embodiment of the present invention are more clearly understood, below will with accompanying drawing and in detail
Narration clearly illustrates the spirit of disclosed content, and any skilled artisan is understanding present invention
After embodiment, when the technology that can be taught by present invention, it is changed and modifies, its essence without departing from present invention
God and scope.
The schematic description and description of the present invention is used to explain the present invention, but not as a limitation of the invention.
In addition, element/component of the same or like label used in drawings and the embodiments is for representing same or like portion
Point.
On " first " used herein, " second " ... etc., not especially censure the meaning of order or cis-position,
Be not used to limit the present invention, its only for distinguish with constructed term describe element or operation.
On direction term used herein, for example：Upper and lower, left and right, front or rear etc., are only the sides of refer to the attached drawing
To.Therefore, the direction term used is intended to be illustrative and not intended to limit this creation.
It is open term, i.e., on "comprising" used herein, " comprising ", " having ", " containing " etc.
Mean including but not limited to.
On it is used herein " and/or ", include the things any or all combination.
Include " two " and " two or more " on " multiple " herein；Include " two groups " on " multigroup " herein
And " more than two ".
On term used herein " substantially ", " about " etc., to modify it is any can be with the quantity or mistake of microvariations
Difference, but this slight variations or error can't change its essence.In general, microvariations that such term is modified or error
Scope in some embodiments can be 20%, in some embodiments can be 10%, can be in some embodiments 5% or its
His numerical value.It will be understood by those skilled in the art that the foregoing numerical value referred to can be adjusted according to actual demand, it is not limited thereto.
It is some to describe the word of the application by lower or discuss in the other places of this specification, to provide art technology
Personnel's guiding extra on about the description of the present application.
A kind of embodiment one of the data back up method for distributed data base that Fig. 1 provides for the specific embodiment of the invention
Flow chart, as shown in figure 1, determining the backup number of data according to the importance of the data of database node.
In the embodiment shown in the drawings, the data back up method of distributed data base includes：
Step 101：Judge the key property of the data in the database node of access, wherein, distributed data base system
It is made up of multiple database nodes.In embodiments of the invention, multiple database nodes constitute distributed data base system, data
Master slave relation is not present between the node of storehouse, it between peer-to-peer, i.e. database node is Distributed Relational to be all；Database node
It is specifically as follows the electricity with reading and writing data ability and with certain memory space such as mobile terminal, fixed terminal, server
Sub- equipment.Under normal circumstances, during database node access distributed data base system, database node storage inside has data,
Need to judge the key property of the data.The database node accesses the distributed data base system in a plug-and-play manner
System, database node can freely add or depart from distributed data base system, and database node departs from distributed data base system
The speed of system is less than the speed of data backup.
Step 102：The backup number of the data is determined according to the key property.In the specific embodiment of the present invention, weight
The data that characteristic is higher are wanted, backup number is also higher；The lower data of key property, backup number is also lower, so as to ensure crucial number
According to security.
Referring to Fig. 1, the data back up method that the present invention is provided both saves database resource, the peace of critical data is can guarantee that again
Quan Xing, while the problem of centre data library storage and big processing pressure also is not present, is conducive to data backup and resource-sharing, is accorded with
Close the developing direction of internet and computer technology.
A kind of embodiment two of the data back up method for distributed data base that Fig. 2 provides for the specific embodiment of the invention
Flow chart, as shown in Fig. 2 the security in order to be further ensured that data, data are carried out in disparate databases node standby
Part.
In the embodiment shown in the drawings, after step 102, this method includes：
Step 103：The data are backed up in disparate databases node according to the backup number.In different numbers
According to being backed up in the node of storehouse to data, if some database node for backing up the data exits distributed data base system
Afterwards, the loss of the data is not resulted in.
Referring to Fig. 2, by the way that data are backed up in disparate databases node, the peace of critical data can be further improved
Quan Xing, so as to improve user experience.
A kind of embodiment three of the data back up method for distributed data base that Fig. 3 provides for the specific embodiment of the invention
Flow chart,, can be according to number while ensure that critical data is not lost as shown in figure 3, in order to further save database resource
Data are entered in disparate databases node according to the backup number of accessed number of times amendment data, and according to revised backup number
Row backup.
In the embodiment shown in the drawings, after step 103, this method includes：
Step 104：Backup number described in the number of times amendment being accessed according to the data obtains amendment backup number.The present invention's
In specific embodiment, each database node is substantially all with reading and writing data ability, and the data stored in database node (can
Can be original data in Backup Data or database node) may be accessed by other database nodes (including
Read, change etc.), it is generally the case that the data often accessed by database node are the crucial data of comparison, therefore, it can root
The number of times amendment backup number being accessed according to data.
Step 105：The data are backed up in disparate databases node according to the amendment backup number.The present invention
Specific embodiment in, according to amendment backup number data are backed up in disparate databases node, for be accessed number of times it is fast
The increased data of speed in disparate databases node, it is necessary to carry out more backups；It is slow or basic for accessed number of times increase
Constant, it is desirable to reduce backup number of the data in disparate databases node；It is linearly increased for accessed number of times, can be with
Keep backup number of the data in disparate databases node.
Referring to Fig. 3, backup number of the number of times amendment data being accessed according to data in disparate databases node allows at any time
Between pass, more show important data and obtain more backups, more show secondary data reduction data backup, can further save number
According to base resource, while ensureing that critical data will not lose, user experience is improved.
In other embodiments of the present invention, step 105 is specifically included：According to the amendment backup number successively by institute
Data are stated to be backed up in the minimum multiple database nodes of communication bandwidth, or, successively will according to the amendment backup number
The data are backed up in the most multiple database nodes of the data times are accessed.Communication bandwidth minimum refers specifically to certain
Individual database node and other database nodes carry out the bandwidth of data interaction less than the communication band between other database nodes
It is wide.Number of times at most refer specifically to some data read by database node, the number of times that updates it is most.
A kind of example IV of the data back up method for distributed data base that Fig. 4 provides for the specific embodiment of the invention
Flow chart,, can be according to number while ensure that critical data is not lost as shown in figure 4, in order to further save database resource
The backup number of data is corrected according to the life-span, and data are backed up in disparate databases node according to revised backup number.
In the embodiment shown in the drawings, after step 103, this method includes：
Step 106：The backup number is corrected according to the life-span of the data and obtains amendment backup number.The specific reality of the present invention
Apply in example, each database node is substantially all with reading and writing data ability, the data stored in database node (are probably standby
Original data in number evidence or database node) life cycle may be prescribed, each database node is needed
The data to be stored to it carry out life cycle management, it is generally the case that life-span long data are the crucial data of comparison,
Life-span shorter data are not critical datas, therefore, it can correct backup number according to the life-span of data.Embodiments of the invention
In, the life-span is exactly that current time subtracts data write-in or renewal time.The life-span of the data is by database node at this
Data are provided before being stored in the distributed data base system, i.e., before database node access distributed data base system, its
The life-span of the data of memory storage is provided via the database node, and other database nodes are backed up to the data
When, timing still is carried out to the data according to the original defined life-span；The life-span of the data is by storing the numbers of the data
Calculated according to storehouse node, the life-span of the data expires, and the database node for storing the data deletes the data.
Step 107：The data are backed up in disparate databases node according to the amendment backup number.The present invention
Specific embodiment in, according to amendment backup number data are backed up in disparate databases node, for the data of long lifespan,
Need to carry out more backups in disparate databases node；For the data of short life, it is desirable to reduce data are in disparate databases
Backup number in node.
Referring to Fig. 4, backup number of the data in disparate databases node is corrected according to the life-span of data, allows and is flowed with the time
Die, the data of residual life length obtain more backups, and the short data of residual life reduce data backup, can further save number
According to base resource, while ensureing that critical data will not lose, user experience is improved.
A kind of embodiment one of the data backup device for distributed data base that Fig. 5 provides for the specific embodiment of the invention
Structural representation, device as shown in Figure 5 may apply in the method shown in Fig. 1~Fig. 4, according to database node
The importance of data determines the backup number of data.
In the embodiment shown in the drawings, the data backup device of distributed data base includes the He of judging unit 11
Determining unit 12.Wherein, judging unit 11 is used to judge the key property of the data in the database node of access, wherein, point
Cloth Database Systems are made up of multiple database nodes；Determining unit 12 is used to determine the data according to the key property
Backup number.
Referring to Fig. 5, the data back up method that the present invention is provided both saves database resource, the peace of critical data is can guarantee that again
Quan Xing, while the problem of centre data library storage and big processing pressure also is not present, is conducive to data backup and resource-sharing, is accorded with
Close the developing direction of internet and computer technology.
A kind of embodiment two of the data backup device for distributed data base that Fig. 6 provides for the specific embodiment of the invention
Structural representation, as shown in fig. 6, the security in order to be further ensured that data, data are entered in disparate databases node
Row backup.
In the embodiment shown in the drawings, the device also includes backup units 13.Wherein, backup units 13 are used for
The data are backed up in disparate databases node according to the backup number.
Referring to Fig. 6, by the way that data are backed up in disparate databases node, the peace of critical data can be further improved
Quan Xing, so as to improve user experience.
A kind of embodiment three of the data backup device for distributed data base that Fig. 7 provides for the specific embodiment of the invention
Structural representation, as shown in fig. 7, in order to further save database resource, while ensure that critical data is not lost, Ke Yigen
The number of times being accessed according to data or the life-span of data correct the backup number of data, and according to revised backup number in different numbers
According to being backed up in the node of storehouse to data.
In the embodiment shown in the drawings, the device also includes amending unit 14.Wherein, amending unit 14 is used for
Backup number described in the number of times amendment being accessed according to the data obtains amendment backup number, or, amending unit 14 is used for basis
The life-span of the data corrects the backup number and obtains amendment backup number.The backup units 13 are additionally operable to standby according to the amendment
Number is backed up the data in disparate databases node.
Referring to Fig. 7, backup number of the number of times amendment data being accessed according to data in disparate databases node allows at any time
Between pass, more show important data and obtain more backups, more show secondary data reduction data backup；Or, according to data
Life-span corrects backup number of the data in disparate databases node, allows and is passed with the time, and the data of residual life length obtain more
Backup, the short data of residual life reduce data backup, can further save database resource, while ensureing critical data not
It can lose, improve user experience.
The embodiment of the present invention also provides a kind of computer-readable storage medium for including computer executed instructions, described
When computer executed instructions are handled via data processing equipment, the data processing equipment is caused to perform the number of distributed data base
According to backup method.Data back up method specifically includes following steps：
Step 101：Judge the key property of the data in the database node of access, wherein, distributed data base system
It is made up of multiple database nodes.
Step 102：The backup number of the data is determined according to the key property.
Step 103：The data are backed up in disparate databases node according to the backup number.
The specific embodiment of the invention provides data back up method and device, computer-readable Jie of a kind of distributed data base
Matter, the backup number of data is determined according to the key property of data in database node, further according to backup number by data in different numbers
According to being backed up in the node of storehouse；Further, it is also possible to the residual life amendment data of number of times or data are accessed according to data
Backup number, both saves database resource, can ensure the safety of critical data again, can be divided according to the important level of data
Level backup, reduces the pressure of central database data storage, reduces the pressure of network data transmission, improves user experience.
The above-mentioned embodiment of the present invention can be implemented in various hardware, Software Coding or both combination.For example, this hair
Bright embodiment, which is alternatively in data signal processor (Digital Signal Processor, DSP), performs the above method
Program code.The present invention can also refer to computer processor, digital signal processor, microprocessor or field-programmable gate array
Arrange a variety of functions that (Field Programmable Gate Array, FPGA) is performed.Above-mentioned processing can be configured according to the present invention
Device performs particular task, its machine-readable software code that the ad hoc approach that the present invention is disclosed is defined by performing or firmware generation
Code is completed.Software code or firmware code can be developed into different program languages and different forms or form.Or
Different target platform composing software codes.However, configuring generation according to the software code of execution task of the present invention and other types
Different code pattern, type and the language of code do not depart from spirit and scope of the invention.
Schematical embodiment of the invention is the foregoing is only, design of the present utility model and principle is not being departed from
On the premise of, equivalent variations and modification that any those skilled in the art is made all should belong to the scope of protection of the invention.
Claims (10)
1. a kind of data backup device of distributed data base, it is characterised in that the device includes：
Judging unit, the key property of the data in database node for judging access, wherein, distributed data base system
It is made up of multiple database nodes；And
Determining unit, the backup number for determining the data according to the key property.
2. the data backup device of distributed data base as claimed in claim 1, it is characterised in that the device also includes：
Backup units, for being backed up the data in disparate databases node according to the backup number.
3. the data backup device of distributed data base as claimed in claim 2, it is characterised in that the device also includes：
Amending unit, amendment backup number is obtained for the backup number according to the data accessed number of times amendment,
The backup units are additionally operable to be backed up the data in disparate databases node according to the amendment backup number.
4. the data backup device of distributed data base as claimed in claim 3, it is characterised in that the backup units are specific
For the data to be backed up in the minimum multiple database nodes of communication bandwidth successively according to the amendment backup number.
5. the data backup device of distributed data base as claimed in claim 3, it is characterised in that the backup units are specific
For according to the amendment backup number successively by the data in the multiple database nodes of the data times at most are accessed
Backed up.
6. the data backup device of distributed data base as claimed in claim 2, it is characterised in that the device also includes：
Amending unit, amendment backup number is obtained for correcting the backup number according to the life-span of the data,
The backup units are additionally operable to be backed up the data in disparate databases node according to the amendment backup number.
7. the data backup device of distributed data base as claimed in claim 6, it is characterised in that the longevity of the data
Life is provided by database node before the data are stored in the distributed data base system.
8. the data backup device of distributed data base as claimed in claim 6, it is characterised in that the longevity of the data
Order and calculated by the database node for storing the data.
9. the data backup device of distributed data base as claimed in claim 1, it is characterised in that the database node with
The mode of plug and play accesses the distributed data base system.
10. the data backup device of distributed data base as claimed in claim 1, it is characterised in that the database node
For at least one of mobile terminal, fixed terminal and server.
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| CN201710392948.XA CN107273243A (en) | 2017-05-27 | 2017-05-27 | The data backup device of distributed data base |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710392948.XA CN107273243A (en) | 2017-05-27 | 2017-05-27 | The data backup device of distributed data base |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111104250A (en) * | 2018-10-26 | 2020-05-05 | 伊姆西Ip控股有限责任公司 | Method, apparatus and computer program product for data processing |
| CN112988497A (en) * | 2019-12-13 | 2021-06-18 | 伊姆西Ip控股有限责任公司 | Method, electronic device and computer program product for managing backup system |
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| US20020019959A1 (en) * | 2000-08-02 | 2002-02-14 | Masutaka Harada | Automatic read reassignment method and a magnetic disk drive |
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Application publication date: 20171020 |