CN106406764A - A high-efficiency data access system and method for distributed SAN block storage - Google Patents
A high-efficiency data access system and method for distributed SAN block storage Download PDFInfo
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- CN106406764A CN106406764A CN201610839810.5A CN201610839810A CN106406764A CN 106406764 A CN106406764 A CN 106406764A CN 201610839810 A CN201610839810 A CN 201610839810A CN 106406764 A CN106406764 A CN 106406764A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/061—Improving I/O performance
- G06F3/0611—Improving I/O performance in relation to response time
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/062—Securing storage systems
- G06F3/0623—Securing storage systems in relation to content
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0629—Configuration or reconfiguration of storage systems
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0638—Organizing or formatting or addressing of data
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/067—Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
Abstract
The invention provides a high-efficiency data access system and method for distributed SAN block storage. The system comprises a client, a target end, a block storage interface, a distributed SAN storage pool and a global cache protection module arranged between the block storage interface and the distributed SAN storage pool. The target end is used for receiving a data reading instruction sent by the client and judging whether to-be-read data already exist in data which have already been put in a shared memory in previous reading; if yes, the client performs reading directly from data that already exist in the shared memory, and if no, the data reading instruction is sent to the global cache protection module. The global cache protection module is used for receiving the data reading instruction, adjusting the quotas of the shared memory in real time according to the data reading instruction, and putting the data obtained from the distributed SAN storage pool into the shared memory. According to the invention, data access efficiency is greatly increased, time delay in data reading is reduced, high quality storage of data is guaranteed and data security is improved.
Description
Technical field
The present invention relates to data access technology field, the high-effect data of more particularly to a kind of distributed SAN block storage
Access system and method.
Background technology
With the development of social diversity, various storages are used in every aspect, application scenarios diversification, data storage
Labeling, requires a kind of generation of storage application, and block storage can meet this requirement, on the one hand, block memory requirement number
According to distributed storage, it is possible to achieve the combination of multiple servers, data centralization, while accelerating data processing speed, and
The unified management of data can be facilitated.On the other hand, block storage can pass through centralized data management, divides multiple different
Block, then by corresponding technical finesse, is mapped to multiple users and uses, meet the requirement of storage diversification.In order to more preferable
Reach above-mentioned purpose, at this moment need a kind of distributed SAN block data storage to access system data to be carried out unify having with regard to special
The efficient management of effect.
As shown in figure 1, Fig. 1 is the structural representation that a kind of distributed SAN block data storage of the prior art accesses system
Figure.The operation principle of this access system is：Distributed SAN storage pool provides unified block storage service, divides in storage pool
Go out multiple different block storages, be then supplied to different destination end according to actual needs and use, and destination end is assisted by iscsi
View, is found by client, the block storage in final storage pool is mapped to different clients, is used by the client, and in visitor
Family end, the storage that user can carry out data as using local device uses.But this distributed SAN block data storage accesses
In system, on the one hand, client needs to read out data from storage pool several times when will read a certain amount of data, and deposits
It is slow that reservoir reads data, therefore easily causes data access efficiency low；On the other hand, when destination end occurs surprisingly
During the emergency case such as power down, now can cause the client that destination end is being processed loss of data to be read and write, security performance is low.
Therefore, how to provide a kind of high-effect data access system of the distributed SAN block storage solving above-mentioned technical problem
System and method are the problems that those skilled in the art need to solve at present.
Content of the invention
It is an object of the invention to provide a kind of high-effect data access system of distributed SAN block storage, it is greatly enhanced
The efficiency of data access, decreases the time delay reading data.In addition, the application will read or the data that writes is inserted altogether
Enjoy in internal memory, even if running into the emergency case such as destination end power failure also can utilize the remaining capacity of destination end by shared drive
Data is back to client or falls into distributed SAN storage pool it is ensured that the high-quality storage of data, improves the peace of data
Quan Xing；It is a further object of the present invention to provide a kind of high-effect data access method of distributed SAN block storage.
For solving above-mentioned technical problem, the invention provides a kind of high-effect data access system of distributed SAN block storage
System, including client, destination end, block memory interface, distributed SAN storage pool and be arranged on described piece of memory interface and described
Global buffer protection module between distributed SAN storage pool, described destination end includes dividing out from its local memory
Shared drive, wherein：
Described shared drive is used for that storage obtains from described distributed SAN storage pool, for described client reading
Data and obtain from described client, wait to fall into the data of described distributed SAN storage pool；
Whether described destination end, for receiving the data reading instructions that described client sends, and judge data to be read
Already in before read when be received in the data in described shared drive, if it is, described client directly from
Read in the already present data of described shared drive, otherwise, send described data reading instructions to described global buffer protection module；
Described global buffer protection module is for receiving described data reading instructions and real-time according to described data reading instructions
Adjust the quota of described shared drive, and the data obtaining from described distributed SAN storage pool is inserted described shared drive
In.
Preferably, described global buffer protection module includes：
Internal memory application module, for sending shared drive address Shen when receiving described data reading instructions to control module
Please message；
Described control module, for receiving described shared drive application IP addresses message and determining the shared interior of described destination end
Deposit；
Quota update module, for the quota according to shared drive described in described data reading instructions real-time adjustment；
Memory refreshing module, described common for inserting the target obtaining from described distributed SAN storage pool reading data
Enjoy in internal memory, and send internal storage state new information to described control module.
Preferably, this system also includes：
Internal memory release module, for when described client terminates a certain amount of reading and writing data, dischargeing the described of occupancy
Shared drive；
Then described quota update module, is additionally operable to, after described shared drive is discharged by described internal memory release module, update
The quota of described shared drive.
Preferably, described destination end is standard x86 server.
For solving above-mentioned technical problem, present invention also offers a kind of high-effect data access of distributed SAN block storage
Method, based on high-effect data access system as described above, the method includes：
Step S101：Destination end receives the data manipulation instruction that client sends；
Step S102：Described destination end has been received in altogether when judging whether data to be read Already in reads before
Enjoy in the data in internal memory, if it is, described client directly reads from the already present data of described shared drive, no
Then, described data reading instructions are sent to global buffer protection module；
Step S103：Described global buffer protection module receives described data reading instructions, and according to described data reading instructions
The quota of shared drive described in real-time adjustment, then the data obtaining from described distributed SAN storage pool is inserted described shared
In internal memory.
Preferably, described global buffer protection module include internal memory application module, control module, quota update module and
Memory refreshing module, then step S103 specifically include：
Described internal memory application module sends shared drive address Shen when receiving described data reading instructions to control module
Please message；
Described control module receives described shared drive application IP addresses message and determines the shared drive of described destination end；
Quota update module is according to the quota of shared drive described in described data reading instructions real-time adjustment；
The target obtaining from described distributed SAN storage pool reading data is inserted described shared drive by memory refreshing module
In, and send internal storage state new information to described control module.
Preferably, the method also includes：
Internal memory release module, when described client terminates a certain amount of reading and writing data, discharges the described shared interior of occupancy
Deposit.
The invention provides a kind of high-effect data access system of distributed SAN block storage and method, in the application, will
The shared drive of destination end, as caching, when client will read data, first looks at whether data to be read has existed
In the data being received in when reading before in shared drive, if it is, client directly reads from shared drive, otherwise
Read from distributed SAN storage pool again.
It can be seen that, the application, when reading data, need not read from distributed SAN storage pool every time, but fully profit
It is present in shared drive with some being directly read in also undelivered data, drastically increase data access
Efficiency, decreases the time delay reading data.In addition, the data that the application will read and write is inserted in shared drive, even if running into mesh
Mark end have a power failure etc. emergency case also can using the remaining capacity of destination end by the data in shared drive be back to client or
Person falls into distributed SAN storage pool it is ensured that the high-quality storage of data, improves the safety of data.
Brief description
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below will be to institute in prior art and embodiment
Need use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only the present invention some enforcement
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also obtain according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the structural representation that a kind of distributed SAN block data storage of the prior art accesses system；
The structural representation of the high-effect data access system of a kind of distributed SAN block storage that Fig. 2 provides for the present invention；
The flow chart of the high-effect data access method of a kind of distributed SAN block storage that Fig. 3 provides for the present invention.
Specific embodiment
The core of the present invention is to provide a kind of high-effect data access system of distributed SAN block storage, is greatly enhanced
The efficiency of data access, decreases the time delay reading data.In addition, the application will read or the data that writes is inserted altogether
Enjoy in internal memory, even if running into the emergency case such as destination end power failure also can utilize the remaining capacity of destination end by shared drive
Data is back to client or falls into distributed SAN storage pool it is ensured that the high-quality storage of data, improves the peace of data
Quan Xing；Another core of the present invention is to provide a kind of high-effect data access method of distributed SAN block storage.
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described it is clear that described embodiment is
The a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment being obtained under the premise of not making creative work, broadly falls into the scope of protection of the invention.
Refer to Fig. 2, the high-effect data access system of a kind of distributed SAN block storage that Fig. 2 provides for the present invention
Structural representation, this system includes：
Client 1, destination end 2, block memory interface 3, distributed SAN storage pool 5 and be arranged on block memory interface 3 and point
Global buffer protection module 4 between cloth SAN storage pool 5, it is shared that destination end 2 includes dividing out from its local memory
Internal memory, wherein：
Shared drive be used for storage obtain from distributed SAN storage pool 5, for client 1 read data and from
Client 1 obtain, wait to fall into the data of distributed SAN storage pool 5；
It is understood that the local memory of destination end 2 (namely server) is divided into a region as shared interior
Deposit, be also the caching as client 1 when carrying out digital independent and write.Here client 1 and the number of destination end 2 are equal
Can be multiple, each client 1 and destination end 2 are when carrying out the high-effect data access based on the storage of distributed SAN block
Operation principle is the same.
Destination end 2, for receiving the data reading instructions of client 1 transmission, and judges whether data to be read has deposited
It has been received in the data in shared drive, if it is, client 1 directly exists from shared drive when reading before being
Data in read, otherwise, send data reading instructions to global buffer protection module 4；
It should be noted that client 1 is when carrying out digital independent or write, the data that may read or write
Amount ratio is larger, and therefore, client 1 typically can read several times or write.And it is not over this certain amount of number in client 1
Before reading or write, read during this or the data of write is all stored in shared drive.
Specifically, when client 1 carries out first time digital independent, in shared drive, there is no data, at this moment global buffer is protected
Shield module 4 can obtain data insert this data in shared drive from distributed SAN storage pool 5 and read for client 1.Visitor
Family end 1 may proceed to carry out the second digital independent after reading data, but destination end 2 can judge client 1 data to be read
It has been received in the data in shared drive with the presence or absence of when client 1 reads for the first time, if in whole or in part, then
First already present data is returned to client, if not or part do not have, then send data reading instructions to global buffer
Protection module 4.
Global buffer protection module 4, for receiving data reading instruction, and according to data reading instructions real-time adjustment shared drive
Quota, and the data obtaining from distributed SAN storage pool 5 is inserted in shared drive.
Preferably, global buffer protection module 4 includes：
Internal memory application module, disappears for sending shared drive application IP addresses when receiving data reading instructions to control module
Breath；
Control module, for receiving shared drive application IP addresses message and determining the shared drive of destination end 2；
Quota update module, for the quota according to data reading instructions real-time adjustment shared drive；
Specifically, quota update module ensures that the data of quota updates, for safeguarding the local memory of destination end 2 and sharing
Two kinds of quota values under memorymodel, to be minimized impact during switching.
Memory refreshing module, for inserting shared drive by the target obtaining from distributed SAN storage pool 5 reading data
In, and send internal storage state new information to control module.
Preferably, this system also includes：
Internal memory release module, for when client 1 terminates a certain amount of reading and writing data, dischargeing the shared interior of occupancy
Deposit；
Then quota update module, is additionally operable to, after shared drive is discharged by internal memory release module, update joining of shared drive
Volume.
It is understood that the operation cycle of internal memory release module here is artificially adjustable, for example, tie in client 1
Restraint when a certain amount of digital independent or write or fixed cycle, such as one day etc..Timely by shared drive discharge from
And avoid the occurrence of the situation that other blocks store no free memory.
Preferably, destination end 2 is standard x86 server.
Certainly, goal end 2 can also be other kinds of server, and here of the present invention is not particularly limited.
To sum up, the application passes through to send message from control module application shared drive address, is then built using this address
Deposit the data area of data.When data area content carries out rewriting data change, carry out request for data shape to control module
State changes, after waiting pending data thoroughly to return to front end, the cold data not used in the short time to global buffer protection mechanism and
When send message and discharge shared shared drive, timely etc. new data to be filled is it is ensured that block storage service number of ports
According to high-effect data separate.
In addition, it is necessary to explanation, when the emergency case such as the unexpected power down of destination end 2 occur, global buffer protection module 4
Because data to be read or to be written can be saved in shared drive, it is then back to client 1 or falls in disk
Go, even if because the main electricity of destination end 2 is disconnected, but because destination end 2 still can have the remaining capacity of some such as electric capacity generations, from
And greatly ensure that data is not lost.
The invention provides a kind of high-effect data access system of distributed SAN block storage, in the application, by destination end
Shared drive as caching, when client will read data, first look at whether data to be read Already in is shared
In the data that is received in when reading before in internal memory, if it is, client directly reads from shared drive, otherwise again from point
Read in cloth SAN storage pool.
It can be seen that, the application, when reading data, need not read from distributed SAN storage pool every time, but fully profit
It is present in shared drive with some being directly read in also undelivered data, drastically increase data access
Efficiency, decreases the time delay reading data.In addition, data to be read and write in the application is inserted in shared drive, even if running into mesh
Mark end have a power failure etc. emergency case also can using the remaining capacity of destination end by the data in shared drive be back to client or
Person falls into distributed SAN storage pool it is ensured that the high-quality storage of data, improves the safety of data.
Refer to Fig. 3, the high-effect data access method of a kind of distributed SAN block storage that Fig. 3 provides for the present invention
Flow chart, based on high-effect data access system described above, the method includes：
Step S101：Destination end receives the data manipulation instruction that client sends；
Step S102：Destination end has been received in shared when judging whether data to be read Already in reads before
In the data deposited, if it is, client directly reads from the already present data of shared drive, otherwise, send data and read
Instruct to global buffer protection module；
Step S103：Global buffer protection module receiving data reading instruction, and share according to data reading instructions real-time adjustment
The quota of internal memory, then the data obtaining from distributed SAN storage pool is inserted in shared drive.
Preferably, global buffer protection module include internal memory application module, control module, quota update module and
Memory refreshing module, then step S103 specifically include：
Internal memory application module sends shared drive application IP addresses message when receiving data reading instructions to control module；
Control module receives shared drive application IP addresses message and determines the shared drive of destination end；
Quota update module is according to the quota of data reading instructions real-time adjustment shared drive；
Memory refreshing module inserts the target obtaining from distributed SAN storage pool reading data in shared drive, and to
Control module sends internal storage state new information.
Preferably, the method also includes：
Internal memory release module, when client terminates a certain amount of reading and writing data, discharges the shared drive of occupancy.
The introduction of the high-effect data access method providing for the present invention refer to said system embodiment, and the present invention exists
This repeats no more.
The invention provides a kind of high-effect data access method of distributed SAN block storage, in the application, by destination end
Shared drive as caching, when client will read data, first look at whether data to be read Already in is shared
In the data that is received in when reading before in internal memory, if it is, client directly reads from shared drive, otherwise again from point
Read in cloth SAN storage pool, in the same manner, when client will write data, also first look at whether data to be write has deposited
In the data being received in when writing before being in shared drive, if it is, directly by the data to be written in shared drive
Fall into distributed SAN storage pool.
It can be seen that, the application, when reading data, need not read from distributed SAN storage pool every time or write, and
It is to make full use of some to be present in shared drive in also undelivered data being directly read or writing, greatly
Improve the efficiency of data access, decrease the time delay reading or writing data.In addition, the application will read or write
Data insert in shared drive, even if run into destination end have a power failure etc. emergency case also can utilize destination end remaining capacity will
Data in shared drive is back to client or falls into distributed SAN storage pool it is ensured that the high-quality storage of data, carries
Rise the safety of data.
It should be noted that in this manual, term " inclusion ", "comprising" or its any other variant are intended to
Comprising of nonexcludability, wants so that including a series of process of key elements, method, article or equipment and not only including those
Element, but also include other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element that limited by sentence "including a ..." it is not excluded that
Also there is other identical element including in the process of described key element, method, article or equipment.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple modifications to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can be realized without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and be to fit to and principles disclosed herein and features of novelty phase one
The scope the widest causing.
Claims (7)
1. a kind of high-effect data access system of distributed SAN block storage is it is characterised in that include client, destination end, block
Memory interface, distributed SAN storage pool and be arranged on complete between described piece of memory interface and described distributed SAN storage pool
Office's buffer protection module, described destination end includes the shared drive dividing out from its local memory, wherein：
Described shared drive is used for data that storage obtains from described distributed SAN storage pool, reading for described client
And obtain from described client, wait to fall into the data of described distributed SAN storage pool；
Whether described destination end, for receiving the data reading instructions that described client sends, and judge data to be read
It has been received in the data in described shared drive, if it is, described client is directly from described when reading before being present in
Read in the already present data of shared drive, otherwise, send described data reading instructions to described global buffer protection module；
Described global buffer protection module, for receiving described data reading instructions, and according to described data reading instructions real-time adjustment
The quota of described shared drive, and the data obtaining from described distributed SAN storage pool is inserted in described shared drive.
2. as claimed in claim 1 high-effect data access system it is characterised in that described global buffer protection module bag
Include：
Internal memory application module, disappears for sending shared drive application IP addresses when receiving described data reading instructions to control module
Breath；
Described control module, for receiving described shared drive application IP addresses message and determining the shared drive of described destination end；
Quota update module, for the quota according to shared drive described in described data reading instructions real-time adjustment；
Memory refreshing module, for inserting the target obtaining from described distributed SAN storage pool reading data in described sharing
In depositing, and send internal storage state new information to described control module.
3. as claimed in claim 1 high-effect data access system it is characterised in that this system also includes：
Internal memory release module, for when described client terminates a certain amount of reading and writing data, dischargeing the described shared of occupancy
Internal memory；
Then described quota update module, is additionally operable to, after described shared drive is discharged by described internal memory release module, update described
The quota of shared drive.
4. as claimed in claim 1 high-effect data access system it is characterised in that described destination end be standard x86 service
Device.
5. a kind of high-effect data access method of distributed SAN block storage, based on the height as described in any one of claim 1-4
Potency data accesses system it is characterised in that the method includes：
Step S101：Destination end receives the data manipulation instruction that client sends；
Step S102：Described destination end has been received in shared when judging whether data to be read Already in reads before
In the data deposited, if it is, described client directly reads from the already present data of described shared drive, otherwise, send out
Send described data reading instructions to global buffer protection module；
Step S103：Described global buffer protection module receives described data reading instructions, and real-time according to described data reading instructions
Adjust the quota of described shared drive, then the data obtaining from described distributed SAN storage pool is inserted described shared drive
In.
6. as claimed in claim 5 high-effect data access method it is characterised in that described global buffer protection module includes
Internal memory application module, control module, quota update module and memory refreshing module, then step S103 specifically include：
Described internal memory application module sends shared drive application IP addresses when receiving described data reading instructions to control module and disappears
Breath；
Described control module receives described shared drive application IP addresses message and determines the shared drive of described destination end；
Quota update module is according to the quota of shared drive described in described data reading instructions real-time adjustment；
The target obtaining from described distributed SAN storage pool reading data is inserted in described shared drive by memory refreshing module,
And send internal storage state new information to described control module.
7. as claimed in claim 6 high-effect data access method it is characterised in that the method also includes：
Internal memory release module, when described client terminates a certain amount of reading and writing data, discharges the described shared drive of occupancy.
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| CN106980475A (en) * | 2017-04-01 | 2017-07-25 | 广东浪潮大数据研究有限公司 | A kind of distributed cluster system |
| CN107241444A (en) * | 2017-07-31 | 2017-10-10 | 郑州云海信息技术有限公司 | A kind of distributed caching data management system, method and device |
| CN107992271A (en) * | 2017-12-21 | 2018-05-04 | 郑州云海信息技术有限公司 | Data pre-head method, device, equipment and computer-readable recording medium |
| CN109254879A (en) * | 2018-09-27 | 2019-01-22 | 南方电网科学研究院有限责任公司 | A kind of data processing method, system, device and readable storage medium storing program for executing |
| WO2023207492A1 (en) * | 2022-04-29 | 2023-11-02 | 济南浪潮数据技术有限公司 | Data processing method and apparatus, device, and readable storage medium |
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| WO2023207492A1 (en) * | 2022-04-29 | 2023-11-02 | 济南浪潮数据技术有限公司 | Data processing method and apparatus, device, and readable storage medium |
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