CN106412071A - Data synchronization method and apparatus - Google Patents
Data synchronization method and apparatus Download PDFInfo
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- CN106412071A CN106412071A CN201610878492.3A CN201610878492A CN106412071A CN 106412071 A CN106412071 A CN 106412071A CN 201610878492 A CN201610878492 A CN 201610878492A CN 106412071 A CN106412071 A CN 106412071A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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- 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
- G06F16/24—Querying
- G06F16/245—Query processing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/51—Discovery or management thereof, e.g. service location protocol [SLP] or web services
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- Theoretical Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
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- Databases & Information Systems (AREA)
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Abstract
The present invention provides a data synchronization method and apparatus that are used for synchronizing data of a source end and a target end in real time. The data synchronization method comprises the steps of receiving service basic information input by a user; acquiring service basic data of the source end according to the service basic information; storing the acquired service basic data of the source end, and recording REDO LOG of a database after the stored service basic data changes; and analyzing the REDO LOG of the database, and updating the data of the target end in real time according to information of the analyzed REDO LOG of the database. According to the method, massive data of multiple systems are synchronized rapidly and accurately by using the system-level log REDO LOG of the database software and the TCP/IP, and defects of low efficiency or high resource consumption of existing massive data synchronization method are overcome.
Description
Technical field
The present invention relates to field of computer technology, more particularly, to data syn-chronization field are and in particular to a kind of data syn-chronization side
Method and device.
Background technology
The raising that raising with the level of IT application and people recognize for risk, modern finance enterprise progressively strengthens
Application risk measured using information-based means, especially as the popularization of Basel Agreement III, conditional finance enterprise
Industry progressively replaces with is measured to the risk of financial business activity using senior method, and the complexity due to the metering of senior method,
Need substantial amounts of basic data as the basis of metering, and substantial amounts of basic data is dispersed in various different specialty systems
In system, the data that will be dispersed in each system by technological means is needed to be concentrated.Traditional data syn-chronization means are mainly led to
Cross on-line interface synchronization and night batch synchronization mode, the former generally passes through http protocol by number after completion of transactions by source
According to being real-time transmitted to destination end, the latter generally generates increment in night by trigger or the batch screening of timestamp mode by source
Data text, point-to-point mode is transmitted to destination end, and destination end imports increment text in plan time point.But both is synchronous and each
There are some defects：
1st, online synchronization：Data syn-chronization is ageing strong, but the synchronization of suitable small data quantity, when synchrodata amount is big and disperses
When, on the one hand, resource reusable degree is not high, causes system complexity to be substantially increased simultaneously and the performance of system is brought larger
Pressure, impact system normally provides service.
2nd, batch synchronization：Data syn-chronization is ageing poor, needs to transmit data using free time in night, but to big data
The synchronization of amount is supported preferably, and can reduce the coupling that same business dispersion is stored in data syn-chronization during different contingency table.With
When source transmission time point later when, may miss destination end load time point, impact destination end data accuracy, integrity.
Content of the invention
In order to solve during the data that will be dispersed in each system is concentrated, during the data syn-chronization of prior art
The problem that effect property is poor or synchrodata amount is not enough, the present invention proposes a kind of method of data synchronization and device.
In order to achieve the above object, the embodiment of the present invention proposes a kind of method of data synchronization, for real-time synchronization source and
The data of destination end, including：The service basic information of receiving user's input；According to described service basic information, obtain described source
The service basic data at end；The service basic data of the described source that storage obtains, and the service basic data generation in storage
After variation, database of record REDO LOG；Parse described data base REDO LOG, and according to the data base REDO LOG after parsing
Destination end described in information real-time update data.
Further, in one embodiment, also include：Accept the inquiry request of user input, and please according to described inquiry
Seek the service basic data obtaining and showing described destination end.
Further, in one embodiment, in the step of its record, transmission and parsing data base REDO LOG, also
Including：Monitor generation situation, transmission quantity and the implementation status of described data base REDO LOG.
Further, in one embodiment, in the step that its data base REDO LOG is transmitted, also include：Control
The open and close of the transmission of described data base REDO LOG.
Further, in one embodiment, described data base REDO LOG is transmitted to described target by ICP/IP protocol
End.
In order to achieve the above object, propose a kind of data synchronization unit accordingly, for real-time synchronization source and target
The data at end, including：Service basic MIM message input module, for the service basic information of receiving user's input；Service basic number
According to acquisition module, for according to described service basic information, obtaining the service basic data of described destination end；REDO LOG records
Module, the service basic data of the described source obtaining for storage, and after the service basic data of storage changes, note
Record data base REDO LOG；REDO LOG parse update module, for parsing described data base REDO LOG, and according to parsing after
The destination end described in information real-time update of data base REDO LOG data.
Further, in one embodiment, also include：Back ground Information enquiry module, for accepting the inquiry of user input
Request, and obtain and show the service basic data of described destination end according to described inquiry request.
Further, in one embodiment, also include：REDO LOG monitoring modular, for monitoring described data base REDO
The generation situation of LOG, transmission quantity and implementation status.
Further, in one embodiment, also include：REDO LOG transmission control module, for controlling described data base
The open and close of the transmission of REDO LOG.
The beneficial effects of the present invention is, the present invention by using database software system level logs REDO LOG and
Based on TCP/IP host-host protocol, realize the accurate Fast synchronization of mass data between multisystem, overcome existing synchronous mass data
When efficiency low or the shortcomings of resource consumption is larger.First, the resource consumption to service server for the method for data synchronization of the present invention
Situation relies on relatively low；Secondly, after service related data changes, you can synchronize in time, data syn-chronization is greatly improved
Ageing.Original batch synchronization by needing T+1 day, online synchronization usual 1 second about, and the data synchronization unit of the present invention
Lock in time is about several seconds although more online synchronization is slightly poor, but far better than the batch synchronization time, and this synchronous ageing may be used
Meet most business scenario use demands；And, more traditional on-line interface pattern or batch interface modes, this data is same
Step device not only transmits ageing height, and transmitted data amount is big, and application and development cost is less.Traditional on-line interface is generally suitable
For synchronous data volume in units of K, and this device is not then limited by transmission quantity size substantially.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those skilled in the art, without having to pay creative labor, can also root
Obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the flow chart of the method for data synchronization of the embodiment of the present invention.
Fig. 2 is the structural representation of the data synchronization unit of the embodiment of the present invention.
Fig. 3 is the structural representation of the data synchronization unit of another embodiment of the present invention.
Fig. 4 is the structural representation of the data synchronization unit of further embodiment of this invention.
Fig. 5 is the structural representation of the data synchronization unit of yet another embodiment of the invention.
Drawing reference numeral：
Service basic MIM message input module 100
Service basic data acquisition module 200
REDO LOG logging modle 300
REDO LOG parses update module 400
Source 500
Destination end 600
Back ground Information enquiry module 700
Query frame display unit 710
Result display unit 720
Result set information query unit 730
REDO LOG monitoring modular 800
Generate monitoring means 810
Send monitoring means 820
Accept monitoring means 830
REDO LOG transmission control module 900
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
Fig. 1 is the flow chart of the method for data synchronization of the embodiment of the present invention.As shown in figure 1, the data of the embodiment of the present invention
Synchronous method, for the data of real-time synchronization source and destination end, including：
S100, the service basic information of receiving user's input；
S200, according to described service basic information, obtains the service basic data of described source；
S300, the service basic data of the described source that storage obtains, and the service basic data in storage change
Afterwards, database of record REDO LOG；
S400, parses described data base REDO LOG, and real-time more according to the information of the data base REDO LOG after parsing
The newly data of described destination end.
In the S100 of the present embodiment, the service basic information of receiving user's input, in being embodied as, can pass through man-machine
Interface is realized receiving passing through the operation such as to click on, drag or key in by the service basic information required for user and is realized input, when taking
Step S200 is entered after obtaining the service basic information of user input.
In the S200 of the present embodiment, according to described service basic information, obtain the service basic data of described source.?
After obtaining the service basic information of user input, the content to be transferred according to user in service basic information, obtain the industry of source
Business basic data.Here be emphasized that the species of source and quantity can be multiple, the invention is not limited in this regard.Obtain
After taking the service basic data of source needed for family, enter step S300.
In the S300 of the present embodiment, the service basic data of the described source that storage obtains, and the business base in storage
After plinth data changes, database of record REDO LOG.Stored, if now not having after the service basic data obtaining source
In the case of having new source service basic data input, this source service basic data is not certainly done and is changed, new when having
Source service basic data acquisition after, by comparing the formerly difference with posterior source service basic data, and collect it
After variation, record generates data base REDO LOG.Here it should be noted that posterior source service basic data update side
Formula can be updated for whole coverings source business datum formerly or on its basis, and the present invention does not make to this
Limit.After generating data base REDO LOG, it is sent to by ICP/IP protocol, and enters next step.
In the S400 of the present embodiment, parse described data base REDO LOG, and according to the data base REDO after parsing
The data of the destination end described in information real-time update of LOG.After receiving described data base REDO LOG, carry out parsing operation, by it
It is translated as data manipulation language, then this data manipulation language is executed operation in the data storage device of destination end.Because
The variation of source service basic data in the S300 having been comprised in data base REDO LOG, and the data of destination end connecing
After receiving the operating language after data base REDO LOG is translated, can directly operate on it, the change of data is carried out
Update, thus realizing the synchronization of data.Again because data base's REDO LOG property of itself, the data volume that it takies is not
Greatly, but the data variation of source business datum can be reflected, moreover, due to taking the little data base REDO of data volume
LOG is sent by ICP/IP protocol and receives it is possible to easily realize real-time Transmission.
In one embodiment, when carrying out data syn-chronization, can with the inquiry request of receiving user's input, and according to
Described inquiry request obtains and shows the service basic data of described destination end.By this step, inquiry can be provided the user
Service, the result set after inquiry is showed user.
In one embodiment, while record, transmission and parsing described data base REDO LOG, can also be to described
The generation situation of data base REDO LOG, transmission quantity and implementation status are monitored, when mistake generation, transmission or execution
Cheng Zhong, when data base's REDO LOG quantity goes out active or mistake, or the data base REDO LOG of execution has disappearance
When, the data base REDO LOG losing is resend or is executed, and this problem is informed user, so that user couple
It takes corresponding measure.
In one embodiment, in the step that data base REDO LOG is transmitted, also include：Control described data base
The open and close of the transmission of REDO LOG.Open to execute subsequent step when needing transmission, when fortuitous event occurs,
Follow-up step can be stopped in time with save resources.
After the method for data synchronization describing the embodiment of the present invention, next, with reference to Fig. 2 to the embodiment of the present invention
Data synchronization unit is introduced.The enforcement of this device may refer to the enforcement of said method, repeats no more in place of repetition.Below
The term " module " that used, " unit ", can be software and/or the hardware realizing predetermined function.
Fig. 2 is the structural representation of the data synchronization unit of the embodiment of the present invention, as shown in Fig. 2 the embodiment of the present invention
Data synchronization unit, for the data of real-time synchronization source 500 and destination end 600, including：Service basic MIM message input module
100, for the service basic information of receiving user's input；Service basic data acquisition module 200, for according to described business base
Plinth information, obtains the service basic data of described source 500；REDO LOG logging modle 300, the described source obtaining for storage
The service basic data at end 500, and after the service basic data of storage changes, database of record REDO LOG；REDO
LOG parses update module 400, for parsing described data base REDO LOG, and according to the data base REDO LOG's after parsing
The data of destination end 600 described in information real-time update.
In one embodiment, Fig. 3 is the structural representation of the data synchronization unit of another embodiment of the present invention, as Fig. 3 institute
Show, also include：Back ground Information enquiry module 700, for accepting the inquiry request of user input, and obtains according to described inquiry request
Take and show the service basic data of described source.This module receiving user's input, and the information that user is inquired about is sent to
Service basic data acquisition module 200, then after it obtains the service basic data of described source 500, after inquiry
Result set information is communicated back to Back ground Information enquiry module again, and shows user.
During being embodied as, Back ground Information enquiry module is by query frame display unit 710, result display unit
720 and result set information query unit 730 form.Result set information query unit 730 is connected to service basic data acquisition
Module 200.Inquiry display unit 710, by accepting user input, is intended to Query Information and is sent to result set information query unit
730, after result set information query unit 730 obtains the service basic data of destination end 600, by single or multiple service basics
Data Integration returns to result display unit 720 for result set information, and result display unit 720 receives result set information and passes through
Page turning mode is asynchronous to show user.
In one embodiment, Fig. 4 is the structural representation of the data synchronization unit of further embodiment of this invention, as Fig. 4 institute
Show, also include：REDO LOG monitoring modular 800, for monitor the generation situation of described data base REDO LOG, transmission quantity and
Implementation status.
During being embodied as, REDO LOG monitoring modular 800 connects REDO LOG logging modle 300, for supervising
Survey the generation situation of REDO LOG, produce mistake or the situation of loss of learning when generating process occurs, this feedback of the information is given
User, reminds user to take corresponding measure for different situations.In addition, REDO LOG monitoring modular 800 is also simultaneously connected with REDO
LOG parses update module 400, in order to be monitored to the transmission status of REDO LOG, when the biography of data base REDO LOG
When packet loss, error code occur during defeated, by this feedback of the information to user, user is reminded to take corresponding measure for different situations.
In one embodiment, Fig. 5 is the structural representation of the data synchronization unit of yet another embodiment of the invention, as Fig. 5 institute
Show, also include：REDO LOG transmission control module 900, is connected to REDO LOG logging modle 300 and REDO LOG parsing updates
Module 400, for controlling the open and close of the transmitting procedure of described data base REDO LOG, such as when in multiple sources not more
During the situation of new data, can control between closing REDO LOG logging modle 300 and REDO LOG parsing update module 400
Transmission channel, to save bandwidth resources.Additionally, REDO LOG transmission control module 900 can also monitor mould according to REDO LOG
The concrete condition that block 800 is monitored is controlled to transmission channel.
Described herein is although the above-mentioned some modules being referred to data synchronization unit, but art technology people
, it will be appreciated that not forcing to limit with upper module, in actual implementation process, the feature of multiple modules and function can be for member
Integration realization in one module.
How data synchronization unit with regard to the present invention realizes data syn-chronization below, does simple introduction：
Service basic MIM message input module 100 receives the service basic information of user input, is sent to business base
Plinth data acquisition module 200, service basic data acquisition module 200 according to the service basic information of user input, in source 500
In transfer corresponding service basic data and send it to REDO LOG logging modle 300.Then, this device storage obtains
Described source 500 service basic data, and after the service basic data of storage changes, record changes corresponding
Data base REDO LOG, and sent to REDO LOG parsing update module 400 by ICP/IP protocol, REDO LOG parsing updates
Module 400 can be according to the data of the destination end 600 described in information real-time update of the data base REDO LOG after parsing, thus completing
The process of data syn-chronization.Period, if user's inquiry request, Back ground Information enquiry module 700 can be according to the inquiry of user
Request content is transferred the information of source 500 and is shown；And, in whole data synchronization process, REDO LOG monitors
Module 800 irregularly can carry out monitoring to the generation situation of data base REDO LOG, transmission quantity and implementation status, reflects data
Synchronous situation, the demand modeling that REDO LOG transmission control module 900 also can respond user states the transmission of data base REDO LOG
Open and close.
Here illustrates, and the data synchronization unit of the present invention is based under liability metrology applications scene, how to realize data
Synchronous, detailed process is as follows：
The service basic information of user input specific liability metering, data synchronization unit of the present invention can be by this service basic
Information transfers the corresponding data that liability is measured in corresponding source, and sends the data to REDO LOG logging modle, due to
Store this data and can produce change compared to the data storing before, for this change record data base REDO LOG, and pass through
The data base REDO LOG of the transition information containing this liability continuous data is sent and parses more to REDO LOG by ICP/IP protocol
New module, is parsed, and obtains data manipulation language after parsing, then measures this data manipulation language application to liability
Destination end, thus realize synchronous to target end data according to this manipulation language.When, when carrying out data syn-chronization, user is also
Can realize inquiring about the purpose of data by the data synchronization unit of the present invention.First, the inquiry request of user input, inquiry
After the confirmation of display unit receive user, Query Information is sent to result set information query unit by http request, then
After destination end inquiry liability result, finally return to information query unit and show user.
The data synchronization unit of the present invention obtains and shows the industry that the liability of described source is measured according to described inquiry request
Business basic data.
The beneficial effects of the present invention is, the present invention by using database software system level logs REDO LOG and
Based on TCP/IP host-host protocol, realize the accurate Fast synchronization of mass data between multisystem.Overcome existing synchronous mass data
When efficiency low or the shortcomings of resource consumption is larger.First, the resource consumption to service server for the method for data synchronization of the present invention
Situation relies on relatively low；Secondly, after service related data changes, you can synchronize in time, data syn-chronization is greatly improved
Ageing.Original batch synchronization by needing T+1 day, online synchronization usual 1 second about, and the data synchronization unit of the present invention
Lock in time is about several seconds although more online synchronization is slightly poor, but far better than the batch synchronization time, and this synchronous ageing may be used
Meet most business scenario use demands；And, more traditional on-line interface pattern or batch interface modes, this data is same
Step device not only transmits ageing height, and transmitted data amount is big, and application and development cost is less.Traditional on-line interface is generally suitable
For synchronous data volume in units of K, and this device is not then limited by transmission quantity size substantially.
Apply specific embodiment in the present invention principle of the present invention and embodiment are set forth, above example
Explanation be only intended to help and understand the method for the present invention and its core concept；Simultaneously for one of ordinary skill in the art,
According to the thought of the present invention, all will change in specific embodiments and applications, in sum, in this specification
Hold and should not be construed as limitation of the present invention.
Claims (9)
1. a kind of method of data synchronization, the data for real-time synchronization source and destination end is it is characterised in that include：
The service basic information of receiving user's input；
According to described service basic information, obtain the service basic data of described source；
The service basic data of the described source that storage obtains, and after the service basic data of storage changes, record number
According to storehouse REDO LOG；
Parse described data base REDO LOG, and the target described in information real-time update of the data base REDO LOG after parsing
The data at end.
2. method of data synchronization according to claim 1 is it is characterised in that also include：
Accept the inquiry request of user input, and obtain and show the service basic number of described destination end according to described inquiry request
According to.
3. method of data synchronization according to claim 1 is it is characterised in that in record, transmission and parse data base
In the step of REDO LOG, also include：
Monitor generation situation, transmission quantity and the implementation status of described data base REDO LOG.
4. method of data synchronization according to claim 1 is it is characterised in that the step that is transmitted in data base REDO LOG
In rapid, also include：
Control the open and close of the transmission of described data base REDO LOG.
5. method of data synchronization according to claim 1 is it is characterised in that described data base REDO LOG passes through TCP/IP
Protocol transmission is to described destination end.
6. a kind of data synchronization unit, the data for real-time synchronization source and destination end is it is characterised in that include：
Service basic MIM message input module, for the service basic information of receiving user's input；
Service basic data acquisition module, for according to described service basic information, obtaining the service basic data of described source；
REDO LOG logging modle, the service basic data of the described source obtaining for storage, and the service basic in storage
After data changes, database of record REDO LOG；
REDO LOG parses update module, for parsing described data base REDO LOG, and according to the data base REDO after parsing
The data of the destination end described in information real-time update of LOG.
7. data synchronization unit according to claim 6 is it is characterised in that also include：
Back ground Information enquiry module, for accepting the inquiry request of user input, and obtains according to described inquiry request and shows
The service basic data of described destination end.
8. data synchronization unit according to claim 6 is it is characterised in that also include：
REDO LOG monitoring modular, for monitoring generation situation, transmission quantity and the implementation status of described data base REDO LOG.
9. data synchronization unit according to claim 6 is it is characterised in that also include：
REDO LOG transmission control module, for controlling the open and close of the transmission of described data base REDO LOG.
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| CN107423162A (en) * | 2017-04-25 | 2017-12-01 | 北京邮电大学 | Disaster recovery and backup systems and the synchronous method and device of source inter-system data |
| CN108460163A (en) * | 2018-04-13 | 2018-08-28 | 郑州云海信息技术有限公司 | K-DB method for synchronizing data of database, device, equipment and storage medium |
| CN109684341A (en) * | 2018-12-21 | 2019-04-26 | 上海瀚银信息技术有限公司 | A kind of real-time synchronization system and method for business datum |
| CN112764996A (en) * | 2021-01-27 | 2021-05-07 | 上海英方软件股份有限公司 | Method and device for monitoring session of target library in database disaster tolerance environment |
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