CN109981798A - A kind of method for writing data, system and electronic equipment and storage medium - Google Patents
A kind of method for writing data, system and electronic equipment and storage medium Download PDFInfo
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- CN109981798A CN109981798A CN201910294493.7A CN201910294493A CN109981798A CN 109981798 A CN109981798 A CN 109981798A CN 201910294493 A CN201910294493 A CN 201910294493A CN 109981798 A CN109981798 A CN 109981798A
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000003860 storage Methods 0.000 title claims abstract description 41
- 230000004048 modification Effects 0.000 claims abstract description 107
- 238000012986 modification Methods 0.000 claims abstract description 107
- 230000001360 synchronised effect Effects 0.000 claims abstract description 24
- 230000000593 degrading effect Effects 0.000 claims abstract description 12
- 238000004590 computer program Methods 0.000 claims description 11
- 230000006870 function Effects 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 4
- 238000012508 change request Methods 0.000 claims 1
- 230000008569 process Effects 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 8
- 238000004891 communication Methods 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 238000005457 optimization Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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- Information Transfer Between Computers (AREA)
Abstract
This application discloses a kind of method for writing data, system and a kind of electronic equipment and computer readable storage mediums, this method comprises: after receiving data modification request, it determines the corresponding target modification band of the data modification request and target modification object, and judges the state of the target object；If the target object is degrading state, it is determined that the target update band for needing to synchronize in the target modification band；It is synchronous that data are carried out to the target update band, and update the version number of the target update band；The target modification band is written into corresponding data according to the data modification request.The application obtains the data for needing synchronous part band using the version number of band, reduces the synchronous data volume of data to effectively prevent the occupancy of system io resource and network bandwidth resources caused by data synchronize and improves data write efficiency.
Description
Technical field
This application involves technical field of distributed memory, more specifically to a kind of method for writing data, system and one
Kind electronic equipment and a kind of computer readable storage medium.
Background technique
With the fast development of cloud computing technology, industry requires increasingly the Performance And Reliability of distributed storage
It is high.One version number of each object record of bottom in current system, version number is updated when object has update.When have node at
For member when exiting, PG (placement group, put in order group) is in degrading state, there was only that PG's is online in data modification at this time
Object version number on node member is updated, and the object version number of temporarily offline node member not will be updated, at this time
Produce degradation object.
After offline node member is again online, if degradation object needs to modify at this time, the version number of few members is found
Lower than the version number of other members, need at this time first by the data of the entire object for the member that degrades and version number it is all synchronous be newest
's.However, if, if only having modified low volume data in object, synchronizing process is also required to synchronize entire object, pole in demotion processes
Big wastes system io resource and bandwidth resources, and increases leading portion io delay.
Therefore, how to solve the above problems is that those skilled in the art need to pay close attention to.
Summary of the invention
The application be designed to provide a kind of method for writing data, system and a kind of electronic equipment and a kind of computer can
Storage medium is read, the waste of system io resource caused by data synchronize and bandwidth resources is effectively reduced.
To achieve the above object, this application provides a kind of method for writing data, comprising:
After receiving data modification request, determine that the corresponding target modification band of the data modification request and target are repaired
Change object, and judges the state of the target object；
If the target object is degrading state, it is determined that the target for needing to synchronize in the target modification band is more
New band；
It is synchronous that data are carried out to the target update band, and update the version number of the target update band；
The target modification band is written into corresponding data according to the data modification request.
Wherein, the corresponding target modification band of the determination data modification request, comprising:
The target modification band is determined using offset function and length function.
Wherein, after the state of the judgement target object, further includes:
If the target object is normal condition, directly initiates and write corresponding data according to the data modification request
The step of entering the target modification band.
Wherein, the target update band for needing to synchronize in the determination target modification band, comprising:
It is sent to the corresponding storage equipment of the target object and reads the request of band version number, to obtain the storage equipment
The current band version number returned；
Determine the target stripe version number of the corresponding object of target object described in main storage device, and by described in comparison
Target stripe version number and the current band version number, determine the target update band.
Wherein, it is described corresponding data are written by the target modification band according to the data modification request after, also
Include:
Successful prompt information will be written and be back to client.
To achieve the above object, this application provides a kind of data writing systems, comprising:
Condition judgment module, for after receiving data modification request, determining the corresponding mesh of the data modification request
Mark modification band and target modification object, and judge the state of the target object；
Band determining module, if being degrading state for the target object, it is determined that needed in the target modification band
The target update band to be synchronized；
Data simultaneous module, it is synchronous for carrying out data to the target update band, and update the target update item
The version number of band；
Data write. module, for the target modification item to be written in corresponding data according to the data modification request
Band.
Wherein, further includes:
Starting module is written, after the state for judging the target object, if the target object is normal condition,
Then directly initiate the step of corresponding data are written by the target modification band according to the data modification request.
Wherein, the band determining module, comprising:
Version acquiring unit reads the request of band version number for sending to the corresponding storage equipment of the target object,
To obtain the current band version number that the storage equipment returns；
Version comparison unit, for determining the target stripe version of the corresponding object of target object described in main storage device
Number, and by comparing the target stripe version number and the current band version number, determine the target update band.
To achieve the above object, this application provides a kind of electronic equipment, comprising:
Memory, for storing computer program；
Processor is realized when for executing the computer program such as the step of above-mentioned any method for writing data.
To achieve the above object, this application provides a kind of computer readable storage medium, the computer-readable storages
It is stored with computer program on medium, such as above-mentioned any data write-in side is realized when the computer program is executed by processor
The step of method.
By above scheme it is found that a kind of method for writing data provided by the present application, comprising: asked when receiving data modification
After asking, the corresponding target modification band of the data modification request and target modification object are determined, and judge the target object
State；If the target object is degrading state, it is determined that the target for needing to synchronize in the target modification band is more
New band；It is synchronous that data are carried out to the target update band, and update the version number of the target update band；According to described
The target modification band is written in corresponding data by data modification request.The application is obtained using the version number of band to be needed together
The data of the part band of step reduce the synchronous data volume of data, to effectively prevent system io caused by data synchronize
The occupancy of resource and network bandwidth resources improves data write efficiency.Disclosed herein as well is a kind of data writing systems and
A kind of electronic equipment and a kind of computer readable storage medium, are equally able to achieve above-mentioned technical effect.
It should be understood that the above general description and the following detailed description are merely exemplary, this can not be limited
Application.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, 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 application 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 flow chart of method for writing data disclosed in the embodiment of the present application；
Fig. 2 is the flow chart of another kind method for writing data disclosed in the embodiment of the present application；
Fig. 3 is the process that target modification band process is determined in a kind of method for writing data disclosed in the embodiment of the present application
Figure；
Fig. 4 is a kind of structure chart of data writing systems disclosed in the embodiment of the present application；
Fig. 5 is the structure chart of a kind of electronic equipment disclosed in the embodiment of the present application；
Fig. 6 is the structure chart of another kind electronic equipment disclosed in the embodiment of the present application.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall in the protection scope of this application.
In the prior art, after the offline member of PG is again online, if degradation object needs to modify at this time, part is found
The version number of member is lower than the version number of other members, needs the data of the entire object for the member that degrades and version number at this time first
All synchronous is newest.However, if, if only having modified low volume data in object, synchronizing process is also required to together in demotion processes
Entire object is walked, system io resource and bandwidth resources are greatly wasted, and increases leading portion io delay.
Therefore, the embodiment of the present application discloses a kind of method for writing data, effectively reduces data and synchronizes caused system
The waste of io resource and bandwidth resources.
Referring to Fig. 1, a kind of flow chart of method for writing data disclosed in the embodiment of the present application, as shown in Figure 1, comprising:
S101: after receiving data modification request, determine the corresponding target modification band of the data modification request and
Target modification object, and judge the state of the target object；
In the present embodiment, after the main storage device of PG receives the data modification request of client transmission, according to data
Modification request determines corresponding target modification band and target modification object.Further judge the state of target modification object.
S102: if the target object is degrading state, it is determined that need to synchronize in the target modification band
Target update band；
It should be noted that system is one version number of each object record, when object has update by corresponding version
It number is also updated.When PG updates, only online member is updated, offline member will not be updated, then produced
Degradation object.
In the present embodiment, if target object is degrading state, show that the versions of data in current target object does not update,
The target update band for needing to synchronize further is determined from target modification band.
S103: it is synchronous that data are carried out to the target update band, and update the version number of the target update band；
In this step, obtains and need synchronous data and version number in the main storage device of PG, target update item is brought into
The synchronized update of row data and version number.
S104: corresponding data are written by the target modification band according to the data modification request.
Further, after the data for completing target update band are synchronous, the present embodiment will according to data modification request
Data are written in target modification band, complete the write-in of data.
By above scheme it is found that a kind of method for writing data provided by the present application, comprising: asked when receiving data modification
After asking, the corresponding target modification band of the data modification request and target modification object are determined, and judge the target object
State；If the target object is degrading state, it is determined that the target for needing to synchronize in the target modification band is more
New band；It is synchronous that data are carried out to the target update band, and update the version number of the target update band；According to described
The target modification band is written in corresponding data by data modification request.The application is obtained using the version number of band to be needed together
The data of the part band of step reduce the synchronous data volume of data, to effectively prevent system io caused by data synchronize
The occupancy of resource and network bandwidth resources improves data write efficiency.
The embodiment of the present application discloses a kind of method for writing data, and relative to a upper embodiment, the present embodiment is to technical side
Case has made further instruction and optimization.It is specific:
Referring to fig. 2, the flow chart of another method for writing data provided by the embodiments of the present application, as shown in Figure 2, comprising:
S201: after receiving data modification request, determine that the data are repaired using offset function and length function
Change the corresponding target modification band of request, and determines corresponding target modification object, and judge the state of the target object；
In the present embodiment, the corresponding mesh of the data modification request is determined using using offset function and length function
Mark modification band.
S202: if the target object is degrading state, it is determined that need to synchronize in the target modification band
Target update band；
S203: if the target object is normal condition, it is directly entered step S205；
Specifically, if the corresponding target object of data modification request is normal condition, without counting to target object
According to synchronization, target modification band can be directly write data into.
S204: it is synchronous that data are carried out to the target update band, and update the version number of the target update band；
S205: corresponding data are written by the target modification band according to the data modification request.
Further, on the basis of the above embodiments, the present embodiment, which is directed to, determines that the process of target update band carries out
It is further described, as shown in figure 3, the process includes:
The corresponding storage equipment of S301: Xiang Suoshu target object, which is sent, reads the request of band version number, to deposit described in acquisition
Store up the current band version number that equipment returns；
In the present embodiment, is sent from the main storage device of PG to the corresponding storage equipment of target object and read band version number
Request returns to mesh to main storage device after the corresponding storage equipment of target object, which receives, reads the request of band version number
Mark the band version number of object.
S302: determining the target stripe version number of the corresponding object of target object described in main storage device, and by pair
Than the target stripe version number and the current band version number, the target update band is determined.
Further, by compare PG main storage device in the corresponding object of target object target stripe version number and
Current band version number in the corresponding storage equipment of target object, determines the data for needing to synchronize and version number, thus
Determine corresponding target update band.
In addition, the present embodiment according to the data modification request by corresponding data be written the target modification band it
Afterwards, may further comprise:, which will be written successful prompt information, is back to client.
It is understood that being mentioned after corresponding pillar location is written according to data modification request in data to client return
Show information, to prompt active user to be written successfully.
A kind of data writing systems provided by the embodiments of the present application are introduced below, a kind of data described below are write
Entering system can be cross-referenced with a kind of above-described method for writing data.
Referring to fig. 4, the structure chart of a kind of data writing systems provided by the embodiments of the present application, as shown in Figure 4, comprising:
Condition judgment module 100, for after receiving data modification request, determining that the data modification request is corresponding
Target modification band and target modification object, and judge the state of the target object；
Band determining module 200, if being degrading state for the target object, it is determined that in the target modification band
The target update band for needing to synchronize；
Data simultaneous module 300, it is synchronous for carrying out data to the target update band, and update the target update
The version number of band；
Data write. module 400, for the target modification to be written in corresponding data according to the data modification request
Band.
Further, the data writing systems of the present embodiment can also include:
Starting module is written, after the state for judging the target object, if the target object is normal condition,
Then directly initiate the step of corresponding data are written by the target modification band according to the data modification request.
Specifically, the band determining module in data writing systems provided in this embodiment, comprising:
Version acquiring unit reads the request of band version number for sending to the corresponding storage equipment of the target object,
To obtain the current band version number that the storage equipment returns；
Version comparison unit, for determining the target stripe version of the corresponding object of target object described in main storage device
Number, and by comparing the target stripe version number and the current band version number, determine the target update band.
Present invention also provides a kind of electronic equipment, referring to Fig. 5, the knot of a kind of electronic equipment provided by the embodiments of the present application
Composition, as shown in Figure 5, comprising:
Memory 11, for storing computer program；
The step such as above-mentioned any method for writing data may be implemented in processor 12 when for executing the computer program
Suddenly.
Specifically, memory 11 includes non-volatile memory medium, built-in storage.The non-volatile memory medium is stored with
Operating system and computer-readable instruction, the built-in storage are the operating system and computer-readable in non-volatile memory medium
The operation of instruction provides environment.Processor 12 can be a central processing unit (Central in some embodiments
Processing Unit, CPU), controller, microcontroller, microprocessor or other data processing chips, mentioned for electronic equipment
For calculating and control ability.
On the basis of the above embodiments, preferably, referring to Fig. 6, the electronic equipment further include:
Input interface 13 is connected with processor 12, for obtaining computer program, parameter and the instruction of external importing, warp
The control of processor 12 is saved into memory 11.The input interface 13 can be connected with input unit, receive user and be manually entered
Parameter or instruction.The input unit can be the touch layer covered on display screen, be also possible to be arranged in terminal enclosure by
Key, trace ball or Trackpad are also possible to keyboard, Trackpad or mouse etc..
Display unit 14 is connected with processor 12, for the data of the processing of video-stream processor 12 and for showing visually
The user interface of change.The display unit 14 can be light-emitting diode display, liquid crystal display, touch-control liquid crystal display and OLED
(Organic Light-Emitting Diode, Organic Light Emitting Diode) touches device etc..
The network port 15 is connected with processor 12, for being communicatively coupled with external each terminal device.The communication connection
The used communication technology can be cable communicating technology or wireless communication technique, such as mobile high definition chained technology (MHL), general
Universal serial bus (USB), high-definition media interface (HDMI), adopting wireless fidelity technology (WiFi), Bluetooth Communication Technology, low-power consumption bluetooth
The communication technology, communication technology based on IEEE802.11s etc..
Fig. 6 illustrates only the electronic equipment with component 11-15, it will be appreciated by persons skilled in the art that Fig. 6 is shown
Structure do not constitute the restriction to electronic equipment, may include more certain than illustrating less perhaps more components or combination
Component or different component layouts.
Present invention also provides a kind of computer readable storage medium, the storage medium may include: USB flash disk, mobile hard disk,
Read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic
The various media that can store program code such as dish or CD.Computer program, the calculating are stored on the storage medium
It realizes when machine program is executed by processor such as the step of above-mentioned any method for writing data.
The application obtains the data for needing synchronous part band using the version number of band, reduces the synchronous number of data
According to amount, to effectively prevent the occupancy of system io resource and network bandwidth resources caused by data synchronize, improves data and write
Enter efficiency.
Each embodiment is described in a progressive manner in specification, the highlights of each of the examples are with other realities
The difference of example is applied, the same or similar parts in each embodiment may refer to each other.For system disclosed in embodiment
Speech, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is referring to method part illustration
?.It should be pointed out that for those skilled in the art, under the premise of not departing from the application principle, also
Can to the application, some improvement and modification can also be carried out, these improvement and modification also fall into the protection scope of the claim of this application
It is interior.
It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
Claims (10)
1. a kind of method for writing data characterized by comprising
After receiving data modification request, the corresponding target modification band of the data modification request and target modification pair are determined
As, and judge the state of the target object；
If the target object is degrading state, it is determined that the target update item for needing to synchronize in the target modification band
Band；
It is synchronous that data are carried out to the target update band, and update the version number of the target update band；
The target modification band is written into corresponding data according to the data modification request.
2. method for writing data according to claim 1, which is characterized in that the determination data modification request is corresponding
Target modification band, comprising:
The target modification band is determined using offset function and length function.
3. method for writing data according to claim 1, which is characterized in that the state of the judgement target object it
Afterwards, further includes:
If the target object is normal condition, directly initiates and corresponding data are written by institute according to the data modification request
The step of stating target modification band.
4. method for writing data according to claim 1, which is characterized in that needed in the determination target modification band
The target update band to be synchronized, comprising:
It is sent to the corresponding storage equipment of the target object and reads the request of band version number, returned with obtaining the storage equipment
Current band version number；
Determine the target stripe version number of the corresponding object of target object described in main storage device, and by comparing the target
Band version number and the current band version number, determine the target update band.
5. method for writing data according to any one of claims 1 to 4, which is characterized in that described to be repaired according to the data
Change request corresponding data are written after the target modification band, further includes:
Successful prompt information will be written and be back to client.
6. a kind of data writing systems characterized by comprising
Condition judgment module, for after receiving data modification request, determining that the corresponding target of the data modification request is repaired
Change band and target modification object, and judges the state of the target object；
Band determining module, if for the target object be degrading state, it is determined that needed in the target modification band into
The synchronous target update band of row；
Data simultaneous module, it is synchronous for carrying out data to the target update band, and update the target update band
Version number；
Data write. module, for the target modification band to be written in corresponding data according to the data modification request.
7. data writing systems according to claim 6, which is characterized in that further include:
Starting module is written, after the state for judging the target object, if the target object is normal condition, directly
Connect the step of according to the data modification request target modification band is written in corresponding data by starting.
8. data writing systems according to claim 6 or 7, which is characterized in that the band determining module, comprising:
Version acquiring unit reads the request of band version number for sending to the corresponding storage equipment of the target object, to obtain
The current band version number for taking the storage equipment to return；
Version comparison unit, for determining the target stripe version number of the corresponding object of target object described in main storage device,
And by comparing the target stripe version number and the current band version number, the target update band is determined.
9. a kind of electronic equipment characterized by comprising
Memory, for storing computer program；
Processor, realizing the method for writing data as described in any one of claim 1 to 5 when for executing the computer program
Step.
10. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program realizes the step of the method for writing data as described in any one of claim 1 to 5 when the computer program is executed by processor
Suddenly.
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| CN112783689A (en) * | 2021-02-08 | 2021-05-11 | 上海交通大学 | Partial stripe write optimization method and device based on LRC coding |
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Application publication date: 20190705 |