CN107665255A - Method, apparatus, equipment and the storage medium of key value database data change - Google Patents
Method, apparatus, equipment and the storage medium of key value database data change Download PDFInfo
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- CN107665255A CN107665255A CN201710919196.8A CN201710919196A CN107665255A CN 107665255 A CN107665255 A CN 107665255A CN 201710919196 A CN201710919196 A CN 201710919196A CN 107665255 A CN107665255 A CN 107665255A
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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
- G06F16/23—Updating
- G06F16/2358—Change logging, detection, and notification
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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
- G06F16/23—Updating
- G06F16/2308—Concurrency control
- G06F16/2315—Optimistic concurrency control
- G06F16/2322—Optimistic concurrency control using timestamps
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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
- G06F16/23—Updating
- G06F16/2379—Updates performed during online database operations; commit processing
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Abstract
The invention discloses method, apparatus, equipment and the computer-readable recording medium of a kind of key value database data change, including：In response to the request of data change, data modification information is obtained；After the temporal information changed according to data arranges the data modification information in the form of queue, the data modification information is write to journal file；The data modification information according to the journal file, renewal are pre-loaded to the data of internal memory, in order to realize that the data of the key value database change.Guarantee does not influence the reading performance of data while method, apparatus, equipment and computer-readable recording medium provided by the present invention can improve data write performance when data change.
Description
Technical field
The present invention relates to embedded database field, method, dress more particularly to a kind of change of key value database data
Put, equipment and computer-readable recording medium.
Background technology
Core or critical component of the computer as a system, the other parts synergy in homologous ray are whole to complete
The task of individual system, i.e. computer are inlayed plays its effect in systems, and this kind of department of computer science is collectively referred to as embedded computer
Application system, embedded system almost cover all spectra.In embedded systems, the operation to database has specified time
The characteristic of system, the data base set applied to embedded system is referred to as embedded type database system or embedded number in real time here
According to storehouse system.Embedded database is the important component of embedded system, is also turned into increasing personalized application
Exploitation and a kind of essential effective means for managing and using.
Lock and things management function can be often introduced in existing embedded database, transaction operation is applied to needing thing
The occasion that the data that business ensures are modified；Concurrency management mechanism between lock offer process and inside process, is carried for system
The Compliance control with single user modification same target is read for multi-user.Due to the introducing locked in the prior art, in embedded number
According to storehouse when continually writing, the performance of digital independent can be had a huge impact；And the introducing of lock can reduce the steady of system
Qualitative, service application may be because to deal with improperly deadlock occur, cause whole system unavailable.In addition, existing insertion
Formula database needs to carry out lock table handling when carrying out data insertion, while also needs to complete the operation such as establishment of index, these
Operation can cause the inquiry operation of database to have to carry out after the completion of data insertion operation.Existing embedded data
Storehouse is substantially the mode based on monofile and internal memory mapping and realized, reduces data reading performance using redundancy.
In summary as can be seen that how to eliminate the influence to data readwrite performance when embedded database data change
It is to have the problem of to be solved at present.
The content of the invention
It is an object of the invention to provide a kind of method, apparatus of key value database data change, equipment and computer-readable
Storage medium, to solve to ask what database readwrite performance impacted when embedded database data change in the prior art
Topic.
In order to solve the above technical problems, the present invention provides a kind of method of key value database data change, including：In response to
The request of data change, obtains data modification information；The temporal information changed according to data is by the data modification information with team
After the form arrangement of row, the data modification information is write to journal file；The data according to the journal file change
Information, renewal are pre-loaded to the data of internal memory, in order to realize that the data of the key value database change.
Preferably, the loading procedure of the data for being pre-loaded to internal memory includes：Load the complete of the key value database
The total data of the key value database is deserialized as DTO objects, and will load the key assignments data by portion's data to internal memory
The total data in storehouse is to the load information iteration of the internal memory to the journal file.
Preferably, the data modification information according to the journal file, renewal are pre-loaded to the number of internal memory
According to including：Data modification information described in the journal file is parsed, by the data unserializing in the data modification information
To be updated to internal memory after DTO objects.
Preferably, the loading procedure of the data for being pre-loaded to internal memory also includes：Load the key value database
Total data is synchronous to establish index information in the internal memory to internal memory.
Preferably, the data modification information according to the journal file, renewal are pre-loaded to the number of internal memory
According to also including：Synchronized update pre-establishes the index information in internal memory.
Preferably, the data that the renewal is pre-loaded to internal memory include：In response to the request of data query, using advance
Establish to internal memory index information and be pre-loaded to internal memory key value database total data, data needed for inquiry, and
Return to Query Result.
Present invention also offers a kind of device of key value database data change, including：
Acquisition module, for the request changed in response to data, obtain data modification information；
Writing module, for being arranged the data modification information in the form of queue according to the temporal information that data change
Afterwards, the data modification information is write to journal file；
Update module, for the data modification information according to the journal file, renewal is pre-loaded to internal memory
Data.
Preferably, in addition to antitone sequence module, for by the total data of key value database and data change letter
Data in breath are deserialized as DTO objects.
Present invention also offers a kind of equipment of key value database data change, including：Memory, for storing computer
Program；Processor, the step of method of above-mentioned key value database data change is realized during for performing the computer program.
Present invention also offers a kind of computer-readable recording medium, meter is stored with the computer-readable recording medium
Calculation machine program, the computer program realizes the method for above-mentioned key value database data change when being executed by processor the step of.
Method, apparatus, equipment and the computer-readable storage of a kind of key value database data change provided by the present invention
Medium, the data in key value database are loaded onto in internal memory, when data change, data modification information changed according to data
Time sequencing write in the form of queue in journal file, according in the journal file data modification information renewal it is described in
Data in depositing.Therefore method, apparatus, equipment and computer-readable recording medium provided by the present invention are when data change
No longer need to introduce and lock, ensure not influenceing the reading performance of data while improving data write performance.
Brief description of the drawings
, below will be to embodiment or existing for the clearer explanation embodiment of the present invention or the technical scheme of prior art
The required accompanying drawing used is briefly described in technology description, it should be apparent that, drawings in the following description are only this hair
Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the flow of the first specific embodiment of the method for key value database data provided by the present invention change
Figure；
Fig. 2 is the sequential of second of specific embodiment of the method for key value database data provided by the present invention change
Figure；
Fig. 3 is a kind of structured flowchart of the device of key value database data change provided in an embodiment of the present invention.
Embodiment
The core of the present invention is to provide the method, apparatus of key value database data change a kind of, equipment and computer-readable
Storage medium, ensure not influenceing the reading performance of data while data write performance is improved when data change.
In order that those skilled in the art more fully understand the present invention program, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.Obviously, described embodiment is only part of the embodiment of the present invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
Fig. 1 is refer to, Fig. 1 is the first specific implementation of the method for key value database data provided by the present invention change
The flow chart of example.
Step S101：In response to the request of data change, data modification information is obtained；
The data change can be increase data, delete data, modification data.
Step S102：After the temporal information changed according to data arranges the data modification information in the form of queue,
The data modification information is write to journal file；
The temporal information of the data change can be the time that application program sends data change request；The queue can
Think the linear list of first in first out.
Step S103：The data modification information according to the journal file, renewal are pre-loaded to the data of internal memory,
In order to realize that the data of the key value database change.
The data for being pre-loaded to internal memory are the total data in key value database.
In this specific embodiment, when data change, lock is not introduced, but data modification information is changed according to data
Temporal information sorted in the form of queue.This specific embodiment make use of the persistence of daily record completion data, each time data
The corresponding daily record record of change, daily record is first write when data change, then updates the data in internal memory, is replaced using queue
Lock, ensure not influenceing digital independent performance while improving data write performance.
Fig. 2 is refer to, Fig. 2 is second of specific implementation of the method for key value database data provided by the present invention change
The timing diagram of example.
On the basis of above-mentioned specific embodiment, the total data in key value database is loaded onto interior by this specific embodiment
Deposit, and the total data of the key value database is deserialized as DTO (Data Transfer Object data transfers pair
As) object, it is synchronous that index is established in internal memory.The present embodiment comprises the following steps that：
Step S201：In the state of application program launching, the total data of key value database is loaded onto internal memory；
Step S202：The total data of the key value database is deserialized as DTO objects and preserved；
Step S203：It is synchronous that index is established in the internal memory；
Step S204：The total data of the key value database will be loaded to the load information iteration of the internal memory to described
Journal file；
It should be noted that in this specific embodiment above-mentioned steps S202, step S203 and step S204 operation
Order is not limited in any way, can be synchronous to carry out unserializing when the total data of the key value database is loaded onto internal memory
And after establishing the operation of index, by load the total data of the key value database to the internal memory load information iteration extremely
The journal file；After first index information can also being established to the total data for being loaded onto internal memory, then it is deserialized as DTO pairs
As.
In addition to the execution sequence of above-mentioned steps is not construed as limiting, to whether performing step S202 and step S203 and also not making
Limit.In this specific embodiment, step S202 and step S203 can be included；Unserializing operation can also be only carried out,
Do not establish index information；Index information can also be only established, not to the total data for the key value database for being loaded onto internal memory
Carry out unserializing operation；Certain step S202 and step S203 can also not performed.It is described in synthesis, if to perform step
Rapid S202 and step S203；Step S202, step S203 and step S204 execution sequence have no effect on the reality of the present invention
It is existing.
Step S205：Change and ask in response to data, the temporal information changed according to data is by the data modification information
After being arranged in the form of queue, the data modification information is write to journal file；
Step S206：The data modification information in the journal file is parsed, by the data in the data modification information
Internal memory is updated to after being deserialized as DTO objects；
Step S207：Synchronized update pre-establishes ground index information；
It should be noted that above-mentioned steps S206 and step S207 execution sequence are not construed as limiting in the present invention.If loading
During the total data of key value database to internal memory, establish index information, then when the key value database data change, it is necessary to
The index information pre-established is updated；If load total data to the internal memory of key value database, by the key assignments number
Antitone sequence change is carried out according to the total data in storehouse and turns to DTO objects, then when data change, it is necessary to by the data modification information
Data be deserialized as DTO objects after be updated to internal memory.
Step S208：, in response to data inquiry request, the data in internal memory are being pre-loaded to internal memory also when updating
Data in inquiry needed for data；
Step S209：Return to the data query result；
Step S210：Terminate the application program, releasing memory.
The key value database is that one kind of data localization storage is realized in a particular embodiment for this, is different from existing
Embedded database (sqllite, db2), the data of key value database described in this specific embodiment are a kind of more lightweights
Realization, it, which is deleted, passes common occurrence business function in staqtistical data base, greatly improves reading and the write performance of data.Answering
Internal memory is all loaded onto with all data when starting, and is deserialized as the DTO objects that business uses, whole base during data query
In internal memory operation, digital independent come out after without unserializing to be tried again, reached high reading performance.Data increase
Journal file is directly write when amount and full dose, replaces locking using queue, ensure that the reliability of system, improve write performance.
Existing embedded database is essentially all that the mode based on monofile and internal memory mapping is realized, and this is specific real
It is based on completion internal memory to apply the example key value database, and the efficiency based on complete internal memory is compared will height based on internal memory mapping efficiency.
Data change when first write journal file after, data by this record parsed, data be deserialized as using
Entity object, while update the index information in internal memory., can be straight after taking data according to search condition so in digital independent
Connect return to use, without needing to carry out any unserializing operation again.
In addition, lock table is needed when traditional embedded database does data insertion, while also to complete the wound of index
The operation such as build, these operations can cause the inquiry operation of database to have to wait for could carrying out after the completion of insertion operation, specifically
Institute is replaced from queue, it is possible to achieve batch data is inserted, and does not influence ongoing inquiry operation in embodiment.In addition originally
Specific embodiment is data storage and index based on internal memory, and inquiry velocity is more much higher than traditional database efficiency.This tool
Body embodiment has correspondingly been used as the optimization that data store in internal memory, is directly saved in internal memory specific using needing to use
DTO objects, apply without carrying out a unserializing operation again after data are inquired, direct can is used, further carried
The high query performance of data.
Fig. 3 is refer to, Fig. 3 is a kind of structural frames of the device of key value database data change provided in an embodiment of the present invention
Figure；Specific device can include：
Acquisition module 100, for the request changed in response to data, obtain data modification information；
Writing module 200, for according to the temporal information that data change by the data modification information in the form of queue
After arrangement, the data modification information is write to journal file；
Update module 300, for the data modification information according to the journal file, renewal is pre-loaded to internal memory
Data.
The device that this specific embodiment provides also includes antitone sequence module 400, for by the total data of key value database
And the data in the data modification information are deserialized as DTO objects.
The device of the key value database data change of the present embodiment is used to realize foregoing key value database data change
Method, therefore the visible key value database data hereinbefore of embodiment in the device of key value database data change become
The embodiment part of method more, for example, acquisition module 100, writing module 200, update module 300, is respectively used in realization
Step S101, S102 and S103 in the method for key value database data change are stated, so, its embodiment is referred to phase
The description for the various pieces embodiment answered, will not be repeated here.
The specific embodiment of the invention additionally provides a kind of equipment of key value database data change, including：Memory, it is used for
Store computer program；Processor, the side of above-mentioned key value database data change is realized during for performing the computer program
The step of specific embodiment of method.
The specific embodiment of the invention additionally provides a kind of computer-readable recording medium, the computer-readable recording medium
On be stored with computer program, the computer program realizes the side of above-mentioned key value database data change when being executed by processor
The step of specific embodiment of method.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be with it is other
The difference of embodiment, between each embodiment same or similar part mutually referring to.For dress disclosed in embodiment
For putting, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is referring to method part
Explanation.
Professional further appreciates that, with reference to the unit of each example of the embodiments described herein description
And algorithm steps, can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software, the composition and step of each example are generally described according to function in the above description.These
Function is performed with hardware or software mode actually, application-specific and design constraint depending on technical scheme.Specialty
Technical staff can realize described function using distinct methods to each specific application, but this realization should not
Think beyond the scope of this invention.
Directly it can be held with reference to the step of method or algorithm that the embodiments described herein describes with hardware, processor
Capable software module, or the two combination are implemented.Software module can be placed in random access memory (RAM), internal memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
The method and device of key value database data provided by the present invention change are described in detail above.This
Apply specific case in text to be set forth the principle and embodiment of the present invention, the explanation of above example is only intended to
Help to understand method and its core concept of the invention.It should be pointed out that for those skilled in the art,
Without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention, these are improved and modification also falls
Enter in the protection domain of the claims in the present invention.
Claims (10)
- A kind of 1. method of key value database data change, it is characterised in that including：In response to the request of data change, data modification information is obtained；After the temporal information changed according to data arranges the data modification information in the form of queue, write the data and become More information is to journal file；The data modification information according to the journal file, renewal is pre-loaded to the data of internal memory, in order to realize State the data change of key value database.
- It is 2. as claimed in claim 1, it is characterised in that the process of the data for being pre-loaded to internal memory includes：The total data of the key value database is loaded to internal memory, the total data of the key value database is deserialized as DTO objects, and the total data for loading the key value database is literary to the load information iteration of the internal memory to the daily record Part.
- 3. method as claimed in claim 2, it is characterised in that the change of the data according to the journal file letter Breath, the data that renewal is pre-loaded to internal memory include：Data modification information described in the journal file is parsed, the data in the data modification information are deserialized as Internal memory is updated to after DTO objects.
- 4. method as claimed in claim 1 or 2, it is characterised in that the process of the data for being pre-loaded to internal memory is also wrapped Include：The total data of the key value database is loaded to internal memory, it is synchronous to establish index information in the internal memory.
- 5. method as claimed in claim 4, it is characterised in that the change of the data according to the journal file letter Breath, the data that renewal is pre-loaded to internal memory also include：Synchronized update pre-establishes the index information in internal memory.
- 6. method as claimed in claim 5, it is characterised in that the data that the renewal is pre-loaded to internal memory include：In response to the request of data query, the key assignments for pre-establishing to the index information of internal memory and being pre-loaded to internal memory is utilized The total data of database, data needed for inquiry, and return to Query Result.
- A kind of 7. device of key value database data change, it is characterised in that including：Acquisition module, for the request changed in response to data, obtain data modification information；Writing module, after according to the temporal information that data change, the data modification information is arranged in the form of queue, The data modification information is write to journal file；Update module, for the data modification information according to the journal file, renewal is pre-loaded to the data of internal memory.
- 8. device as claimed in claim 7, it is characterised in that also including antitone sequence module, for by the complete of key value database Data in portion's data and the data modification information are deserialized as DTO objects.
- A kind of 9. equipment of key value database data change, it is characterised in that including：Memory, for storing computer program；Processor, the key value database data as described in any one of claim 1 to 6 are realized during for performing the computer program The step of method of change.
- 10. a kind of computer-readable recording medium, it is characterised in that be stored with computer on the computer-readable recording medium Program, realize that key value database data become as described in any one of claim 1 to 6 when the computer program is executed by processor The step of method more.
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| CN201710919196.8A CN107665255B (en) | 2017-09-30 | 2017-09-30 | Method, device, equipment and storage medium for key value database data change |
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| CN201710919196.8A CN107665255B (en) | 2017-09-30 | 2017-09-30 | Method, device, equipment and storage medium for key value database data change |
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| CN110515927A (en) * | 2019-08-28 | 2019-11-29 | 中国工商银行股份有限公司 | Data processing method and its system, electronic equipment and medium |
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| CN117472915A (en) * | 2023-12-27 | 2024-01-30 | 中国西安卫星测控中心 | Hierarchical storage method of time sequence data oriented to multiple Key values |
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| CN109117086A (en) * | 2018-07-16 | 2019-01-01 | 北京百度网讯科技有限公司 | Processing method, device, equipment and the storage medium of storage device data position |
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| CN111949439A (en) * | 2019-05-17 | 2020-11-17 | 中国移动通信集团河南有限公司 | Database-based data file updating method and device |
| CN111949439B (en) * | 2019-05-17 | 2023-08-01 | 中国移动通信集团河南有限公司 | Database-based data file updating method and device |
| CN110427510A (en) * | 2019-08-09 | 2019-11-08 | 上海天诚比集科技有限公司 | Face characteristic update method based on sharing operation log |
| CN110515927A (en) * | 2019-08-28 | 2019-11-29 | 中国工商银行股份有限公司 | Data processing method and its system, electronic equipment and medium |
| CN111125129A (en) * | 2019-12-10 | 2020-05-08 | 珠海格力电器股份有限公司 | Data processing method and device, storage medium and processor |
| CN117472915A (en) * | 2023-12-27 | 2024-01-30 | 中国西安卫星测控中心 | Hierarchical storage method of time sequence data oriented to multiple Key values |
| CN117472915B (en) * | 2023-12-27 | 2024-03-15 | 中国西安卫星测控中心 | Hierarchical storage method of time sequence data oriented to multiple Key values |
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