CN110008153A - A kind of method of data synchronization, device, equipment and readable storage medium storing program for executing - Google Patents
A kind of method of data synchronization, device, equipment and readable storage medium storing program for executing Download PDFInfo
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- CN110008153A CN110008153A CN201910290930.8A CN201910290930A CN110008153A CN 110008153 A CN110008153 A CN 110008153A CN 201910290930 A CN201910290930 A CN 201910290930A CN 110008153 A CN110008153 A CN 110008153A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/14—Handling requests for interconnection or transfer
- G06F13/16—Handling requests for interconnection or transfer for access to memory bus
- G06F13/1668—Details of memory controller
- G06F13/1689—Synchronisation and timing concerns
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Abstract
The invention discloses a kind of method of data synchronization, method includes the following steps: being polled to sensor, obtain hardware data, and judge whether the hardware data is consistent with history hardware data；If it is not, then updating the history hardware data using the hardware data, and record data modification information；The data modification information is sent to target board, is synchronized so that the Target Board Cali carries out hardware data with the data modification information.This method is when data change, just data are synchronous between carrying out plate, in this way, can directly read corresponding data from this plate in the access request for receiving user, without being communicated with to plate, in this way, the communication between plates time can be reduced, resource between occupying plate is reduced, the response speed of access request is further also improved, user experience is promoted.The invention also discloses a kind of data synchronization unit, equipment and readable storage medium storing program for executing, have corresponding technical effect.
Description
Technical field
The present invention relates to computer application technology, more particularly to a kind of method of data synchronization, device, equipment and can
Read storage medium.
Background technique
It needs to carry out a large amount of data communication and synchronizing information in double controller storage system, between dual controller.
Existing, to ensure data consistency, in double plates (dual controller) this plate (one of them in dual controller
Controller) when wanting to obtain information, it need to send and ask for request to plate (another controller in dual controller), plate is received
To after asking for request, then this plate is sent content to, then this plate is externally providing service based on the content received.Namely
It says, after receiving the access request of user, when finding the object of access request not in this plate, is then asked for to plate.Such as
This, the response time that will lead to access request is too long, in addition, the communication interaction between double plates is more, leads to occupying system resources.
In conclusion the problems such as how efficiently reducing the communication between plates time, is that current those skilled in the art are badly in need of solution
Certainly the technical issues of.
Summary of the invention
The object of the present invention is to provide a kind of method of data synchronization, device, equipment and readable storage medium storing program for executing, pass through synchronous plate
Between data, reduce the communication between plates time.
In order to solve the above technical problems, the invention provides the following technical scheme:
A kind of method of data synchronization, comprising:
Sensor is polled, hardware data is obtained, and judge the hardware data and history hardware data whether one
It causes；
If it is not, then updating the history hardware data using the hardware data, and record data modification information；
The data modification information is sent to target board, so as to the Target Board Cali data modification information
It is synchronous to carry out hardware data.
Preferably, sensor is polled, obtains hardware data, comprising:
The sensor is polled according to the change frequency of the sensor test object, obtains the hardware number
According to.
Preferably, judge whether the hardware data is consistent with history hardware data, comprising:
The cyclic redundancy check code of the hardware data is calculated, and judges that the cyclic redundancy check code and the history are hard
Whether the cyclic redundancy check code of number of packages evidence is identical；
If they are the same, it is determined that the hardware data is consistent with the history hardware data；
If it is different, then determining that the hardware data and the history hardware data are inconsistent.
Preferably, the record data modification information, comprising:
Data are marked in initial address, offset, modification length and the measurement for recording data modification.
Preferably, the data modification information is sent to target board, comprising:
Information interface is transmitted between calling plate, the data modification information is sent to the target board.
Preferably, further includes:
When write-in interface is called, the user data being newly written is sent to the target board.
Preferably, further includes:
According to timing cycle, specified synchronizing information is sent to the target board, so as to the institute, Target Board Cali
It is synchronous to state synchrodata progress data, wherein the synchronizing information includes the user data and the hardware data.
A kind of data synchronization unit, comprising:
Hardware data obtains module and obtains hardware data, and judge the hardware data for being polled to sensor
It is whether consistent with history hardware data；
Data modification module, for utilizing the hardware number when the hardware data and history hardware data are inconsistent
According to the update history hardware data, and record data modification information；
Data simultaneous module, for the data modification information to be sent to target board, so as to the Target Board Cali
It is synchronous that hardware data is carried out with the data modification information.
A kind of data synchronizer, comprising:
Memory, for storing computer program；
Processor, the step of above-mentioned method of data synchronization is realized when for executing the computer program.
A kind of readable storage medium storing program for executing is stored with computer program, the computer program quilt on the readable storage medium storing program for executing
The step of processor realizes above-mentioned method of data synchronization when executing.
Using method provided by the embodiment of the present invention, sensor is polled, obtains hardware data, and judge hardware
Whether data are consistent with history hardware data；If it is not, then using hardware data more new historical hardware data, and record data and repair
Convert to breath；Data modification information is sent to target board, so that Target Board Cali carries out hardware data with data modification information
It is synchronous.
This plate obtains hardware data by way of poll.And when hardware data changes, more using hardware data
New historical hardware data, and record the data modification information in renewal process.Then, data modification information is sent to Target Board
Card.When Target Board clamping receives data modification information, it is synchronous that hardware data is carried out based on the data modification information.That is,
For this method when data change, data are synchronous between just carrying out plate, in this way, in the access request for receiving user,
Corresponding data is directly read from this plate, without communicating with to plate, in this way, the communication between plates time can be reduced, is reduced
Resource between occupancy plate, further also improves the response speed of access request, promotes user experience.
Correspondingly, the embodiment of the invention also provides data synchronization unit corresponding with above-mentioned method of data synchronization, set
Standby and readable storage medium storing program for executing, has above-mentioned technique effect, and details are not described herein.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of implementation flow chart of method of data synchronization in the embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of data synchronization unit in the embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of data synchronizer in the embodiment of the present invention；
Fig. 4 is a kind of concrete structure schematic diagram of data synchronizer in the embodiment of the present invention.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.Obviously, described embodiments are only a part of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Embodiment one:
Referring to FIG. 1, Fig. 1 is a kind of flow chart of method of data synchronization in the embodiment of the present invention, this method be can be applied to
In board in dual control storage system, wherein target board another board into dual control storage system.This method include with
Lower step:
S101, sensor is polled, obtains hardware data.
Wherein, hardware data can include: voltage, temperature, the state in place of hard disk, the connection of hard disk each of the links,
Whether the situation and working condition in place of power supply are normal.Wherein, polling mode can be unicast polls or multi-polling, specifically
Polling procedure can be found in common polling mechanism, and details are not described herein.Correspondingly, sensor is that can perceive corresponding hardware data
Sensor, such as perception voltage voltmeter, the thermometer of sense temperature.
Preferably, it is contemplated that the change frequency of some hardware (situation in place of such as power supply) is relatively low, and some hardware
Change frequency it is relatively high (the link situations of such as hard disk each of the links), it is longer when the period according to same polling cycle
When, it is possible that different change frequencies can not be balanced, lead to not the hardware data that timely updates；When the period is shorter, obtain
The frequency for obtaining hardware data is excessively high, and causes to carry out the judgement of invalid data consistency, causes to waste system resource.In order to avoid going out
The existing above problem, can be polled sensor, obtain hardware data according to the change frequency of sensor test object.Specifically
, for changing the lower test object of frequency, then longer cycle can be used and be polled；And for changing the higher inspection of frequency
Object is surveyed, then can be used and be polled compared with short cycle.
S102, judge whether hardware data and history hardware data are consistent.
After this plate obtains hardware data, can determine whether the hardware data be stored in this plate history hardware data whether one
It causes, and then determines whether to carry out data modification and simultaneously operating.Wherein, judge whether hardware data is consistent with history hardware data
Mode can be specially that be judged based on cyclic redundancy check code, may be based on document fingerprint and judged, there are also it certainly
His conventional judgment mode is optional, such as byte-by-byte comparison.
Specifically, judged according to cyclic redundancy check code, then deterministic process, comprising:
Step 1: the cyclic redundancy check code of computing hardware data, and judge cyclic redundancy check code and history hardware number
According to cyclic redundancy check code it is whether identical；
Step 2: if they are the same, it is determined that hardware data is consistent with history hardware data；
Step 3: if it is different, then determining that hardware data and history hardware data are inconsistent.
It is illustrated for ease of description, below combining above three step.
Wherein, cyclic redundancy check code (CRC, Cyclic Redundancy Check) is most normal in data communication field
A kind of error check code, can detect that whether data change.Specifically, in the cyclic redundancy check code of hardware data
When not identical as the cyclic redundancy check code of history hardware data, then it can assert that hardware data and history hardware data are inconsistent,
I.e. hardware data is changed.
As a result document fingerprint (MD5) different data lesser for data difference can all have very big after MD5 operation
Change.So if can directly assert hardware when the MD5 value of hardware data is not identical as the MD5 value of history hardware data
Data and history hardware data are inconsistent.That is, being judged according to document fingerprint, then hardware data and history hardware number are judged
According to whether consistent process, it is similar to by the way of cyclic redundancy identifying code, only by calculate cyclic redundancy identifying code replace with
Document fingerprint is calculated, details are not described herein.
After obtaining judging result, it can be determined whether to carry out data change behaviour synchronous with data according to specific judging result
Make.Specifically, if it is judged that thening follow the steps the operation of S103 to be inconsistent；If it is judged that be it is consistent, then can nothing
Operation.
S103, using hardware data more new historical hardware data, and record data modification information.
It is hard to history using the hardware data when finding hardware data and inconsistent stored history hardware data
Number of packages evidence is updated.Specifically, can be in such a way that covering be write, by the memory space of hardware data write-in history hardware data
It is interior, it certainly, can also be modified by way of modification to history hardware data, save it with hardware data consistent.Into
When row hardware data updates, recorded data modification information.Wherein, data modification information includes: to record the starting of data modification
Address, offset, modification length and measurement mark data.Specifically, data modification information is specifically as follows modification log, and this is repaired
It include the specific details of this modification in some other day will, such as the initial address of data modification, offset, modification length, measurement mark number
According to, modification time and revision.
S104, data modification information is sent to target board, so that Target Board Cali is carried out firmly with data modification information
Number of packages is according to synchronization.
After completing hardware data update, data modification information is sent to target board.Wherein, target board can for
This plate is corresponding to plate.After Target Board clamping receives data modification information, hardware number is carried out using the data modification information
According to synchronization, that is, guarantee this plate and the data consistency to plate.Specifically, the mode that this plate sends data modification information can be specially
Information interface is transmitted between calling plate, data modification information is sent to target board.
For example, the periodic polling of this plate read need information, the fixation inserted position (such as an array or
In structural body), CRC check is done after the completion of poll filling, is compared with last time CRC check value, changing then will be in this block message
Hold and is sent by serial ports to plate；After receiving the block message to plate, in such a way that covering is write, updating last time, (transmission synchronizes interior to plate
The plate of appearance) content that synchronizes.
Using method provided by the embodiment of the present invention, sensor is polled, obtains hardware data, and judge hardware
Whether data are consistent with history hardware data；If it is not, then using hardware data more new historical hardware data, and record data and repair
Convert to breath；Data modification information is sent to target board, so that Target Board Cali carries out hardware data with data modification information
It is synchronous.
This plate obtains hardware data by way of poll.And when hardware data changes, more using hardware data
New historical hardware data, and record the data modification information in renewal process.Then, data modification information is sent to Target Board
Card.When Target Board clamping receives data modification information, it is synchronous that hardware data is carried out based on the data modification information.That is,
For this method when data change, data are synchronous between just carrying out plate, in this way, in the access request for receiving user,
Corresponding data is directly read from this plate, without communicating with to plate, in this way, the communication between plates time can be reduced, is reduced
Resource between occupancy plate, further also improves the response speed of access request, promotes user experience.
It should be noted that based on the above embodiment, the embodiment of the invention also provides be correspondingly improved scheme.Excellent
It can mutually be referred between step or corresponding steps same with the above-mentioned embodiment involved in choosing/improvement embodiment, it is corresponding beneficial
Effect can also be cross-referenced, no longer repeats one by one in preferred/improvement embodiment of this paper.
Preferably, it is contemplated that synchronizing user data is also needed between double plates, it can be when write-in interface be called, by what is be newly written
User data is sent to target board.When write-in interface is called, then show have user or upper layer application to the number of users of this plate
According to modifying, the user data being newly written can be sent to target board at this time.Wherein, user data can be specific user
The storage objects such as storing data, such as picture, text, table, library file.For example, user do Virtual Product Development (VPD,
Virtual Product Development) in SN (sequence number) numbers modification when, order can be issued on mainboard, and mainboard is logical
A kind of IIC (Inter-Integrated Circuit, IC bus are multidirectional control buss) bus is crossed to do in backboard
The modification of appearance after successfully modified, while modifying the information saved in mainboard memory, then sends in modification again by serial ports
Hold slave board, slave board modifies the information being stored in memory after receiving modification content.
Preferably, in order to ensure pair consistency of plate data, to avoid the occurrence of the case where updating imperfect or omission, may be used also
According to timing cycle, specified synchronizing information is sent to target board, so that with synchrodata to carry out data same for Target Board Cali
Step, wherein synchronizing information includes user data and hardware data.In this way, can store to plate data, and can ensure to plate data
Consistency for latest data, i.e. guarantee data on this basis, can be directly from this plate when receiving user access request
Middle reading can reduce communication between plates, quickly carry out response to user access request to plate information.
Embodiment two:
Corresponding to above method embodiment, the embodiment of the invention also provides a kind of data synchronization units, are described below
Data synchronization unit can correspond to each other reference with above-described method of data synchronization.
Shown in Figure 2, which comprises the following modules:
Hardware data obtains module 101 and obtains hardware data, and judge hardware data for being polled to sensor
It is whether consistent with history hardware data；
Data modification module 102, for being updated using hardware data when hardware data and history hardware data are inconsistent
History hardware data, and record data modification information；
Data simultaneous module 103, for data modification information to be sent to target board, so as to Target Board Cali data
It is synchronous that modification information carries out hardware data.
Using device provided by the embodiment of the present invention, sensor is polled, obtains hardware data, and judge hardware
Whether data are consistent with history hardware data；If it is not, then using hardware data more new historical hardware data, and record data and repair
Convert to breath；Data modification information is sent to target board, so that Target Board Cali carries out hardware data with data modification information
It is synchronous.
By way of poll, hardware data is obtained.And when hardware data changes, the hardware data more new calendar is utilized
History hardware data, and record the data modification information in renewal process.Then, data modification information is sent to target board.
When Target Board clamping receives data modification information, it is synchronous that hardware data is carried out based on the data modification information.That is, the dress
It sets when data change, data are synchronous between just carrying out plate, in this way, in the access request for receiving user, it can be direct
From corresponding data is read in this plate, without being communicated with to plate, in this way, the communication between plates time can be reduced, reduces and occupy
Resource between plate further also improves the response speed of access request, promotes user experience.
In a kind of specific embodiment of the invention, hardware data obtains module 101, specifically for examining according to sensor
The change frequency for surveying object, is polled sensor, obtains hardware data.
In a kind of specific embodiment of the invention, hardware data obtains module 101, is specifically used for computing hardware data
Cyclic redundancy check code, and judge whether cyclic redundancy check code identical as the cyclic redundancy check code of history hardware data；
If they are the same, it is determined that hardware data is consistent with history hardware data；If it is different, then determining hardware data and history hardware data not
Unanimously.
In a kind of specific embodiment of the invention, data modification module 102, specifically for rising for record data modification
Beginning address, offset, modification length and measurement mark data.
In a kind of specific embodiment of the invention, data simultaneous module 103, specifically for transmitting information between calling plate
Data modification information is sent to target board by interface.
In a kind of specific embodiment of the invention, further includes:
User data synchronization module, for when write-in interface is called, the user data being newly written to be sent to target
Board.
In a kind of specific embodiment of the invention, further includes:
Cycle synchronisation module, for specified synchronizing information being sent to target board, so as to Target Board according to timing cycle
Cali carries out data with synchrodata and synchronizes, wherein synchronizing information includes user data and hardware data.
Embodiment three:
Corresponding to above method embodiment, the embodiment of the invention also provides a kind of data synchronizers, are described below
A kind of data synchronizer can correspond to each other reference with a kind of above-described method of data synchronization.
Shown in Figure 3, which includes:
Memory D1, for storing computer program；
Processor D2, when for executing computer program the step of the method for data synchronization of realization above method embodiment.
Specifically, referring to FIG. 4, Fig. 4 be a kind of concrete structure schematic diagram of data synchronizer provided in this embodiment,
The data synchronizer can generate bigger difference because configuration or performance are different, may include one or more processing
Device (central processing units, CPU) 322 (for example, one or more processors) and memory 332, one
(such as one or more mass memories of storage medium 330 of a or more than one storage application program 342 or data 344
Equipment).Wherein, memory 332 and storage medium 330 can be of short duration storage or persistent storage.It is stored in storage medium 330
Program may include one or more modules (diagram does not mark), and each module may include in data processing equipment
Series of instructions operation.Further, central processing unit 322 can be set to communicate with storage medium 330, synchronous in data
The series of instructions operation in storage medium 330 is executed in equipment 301.
Data synchronizer 301 can also include one or more power supplys 326, one or more wired or nothings
Wired network interface 350, one or more input/output interfaces 358, and/or, one or more operating systems 341.
For example, Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM etc..
Step in method of data synchronization as described above can be realized by the structure of data synchronizer.
Example IV:
Corresponding to above method embodiment, the embodiment of the invention also provides a kind of readable storage medium storing program for executing, are described below
A kind of readable storage medium storing program for executing can correspond to each other reference with a kind of above-described method of data synchronization.
A kind of readable storage medium storing program for executing is stored with computer program on readable storage medium storing program for executing, and computer program is held by processor
The step of method of data synchronization of above method embodiment is realized when row.
The readable storage medium storing program for executing be specifically as follows USB flash disk, mobile hard disk, read-only memory (Read-Only Memory,
ROM), the various program storage generations such as random access memory (Random Access Memory, RAM), magnetic or disk
The readable storage medium storing program for executing of code.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond the scope of this invention.
Claims (10)
1. a kind of method of data synchronization characterized by comprising
Sensor is polled, hardware data is obtained, and judges whether the hardware data is consistent with history hardware data；
If it is not, then updating the history hardware data using the hardware data, and record data modification information；
The data modification information is sent to target board, so that the Target Board Cali is carried out with the data modification information
Hardware data is synchronous.
2. method of data synchronization according to claim 1, which is characterized in that it is described that sensor is polled, it obtains hard
Number of packages evidence, comprising:
According to the change frequency of the sensor test object, the sensor is polled, obtains the hardware data.
3. method of data synchronization according to claim 1, which is characterized in that judge the hardware data and history hardware number
According to whether consistent, comprising:
The cyclic redundancy check code of the hardware data is calculated, and judges the cyclic redundancy check code and the history hardware number
According to cyclic redundancy check code it is whether identical；
If they are the same, it is determined that the hardware data is consistent with the history hardware data；
If it is different, then determining that the hardware data and the history hardware data are inconsistent.
4. method of data synchronization according to claim 1, which is characterized in that the record data modification information, comprising:
Data are marked in initial address, offset, modification length and the measurement for recording data modification.
5. method of data synchronization according to claim 1, which is characterized in that the data modification information is sent to target
Board, comprising:
Information interface is transmitted between calling plate, the data modification information is sent to the target board.
6. method of data synchronization according to any one of claims 1 to 5, which is characterized in that further include:
When write-in interface is called, the user data being newly written is sent to the target board.
7. method of data synchronization according to claim 6, which is characterized in that further include:
According to timing cycle, specified synchronizing information is sent to the target board, so that the Target Board Cali is with described same
It is synchronous that step data carries out data, wherein the synchronizing information includes the user data and the hardware data.
8. a kind of data synchronization unit characterized by comprising
Hardware data obtains module and obtains hardware data, and judge the hardware data and go through for being polled to sensor
Whether history hardware data is consistent；
Data modification module is used for when the hardware data and history hardware data are inconsistent, more using the hardware data
The new history hardware data, and record data modification information；
Data simultaneous module, for the data modification information to be sent to target board, so as to the institute, Target Board Cali
It is synchronous to state data modification information progress hardware data.
9. a kind of data synchronizer characterized by comprising
Memory, for storing computer program；
Processor, realizing the method for data synchronization as described in any one of claim 1 to 7 when for executing the computer program
Step.
10. a kind of readable storage medium storing program for executing, which is characterized in that be stored with computer program, the meter on the readable storage medium storing program for executing
It is realized when calculation machine program is executed by processor as described in any one of claim 1 to 7 the step of method of data synchronization.
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| CN111367898B (en) * | 2020-02-20 | 2023-09-22 | 北京金山云网络技术有限公司 | Data processing method, device, system, electronic equipment and storage medium |
| CN112765057A (en) * | 2020-12-30 | 2021-05-07 | 京信网络系统股份有限公司 | Data transmission method, PCIE system, equipment and storage medium |
| CN112765057B (en) * | 2020-12-30 | 2024-04-30 | 京信网络系统股份有限公司 | Data transmission method, PCIE system, equipment and storage medium |
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