CN109739435A - File storage and update method and device - Google Patents
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The present invention is suitable for technical field of data storage, provides a kind of storage of file and update method and device, wherein the file memory method includes the file write request for receiving client and sending, and the data block information in extraction document write request；The status information of memory node is obtained, and memory node is screened according to the status information of memory node, generates storage address information.File storage provided in an embodiment of the present invention and update method and device, the file stored will be needed to be divided into several data blocks by client, it is that each data block distributes storage address by management node, since management node stores work without participating in time-consuming file block and specific data block, script is transferred to client and memory node by the multinomial work that management node executes, to significantly reduce the workload of management node, client access delay is avoided, solves the problems, such as that the existing access delay of distributed file system is longer in the prior art.
Description
Technical field
The invention belongs to technical field of data storage more particularly to a kind of storage of file and update method and devices.
Background technique
With the continuous reduction of unit memory space price, people start that more data is tended to save, with
Phase can sometime use more advanced data analysis tool therefrom tap value following.But storage from ancient times to the present is situated between
Therefore the problem of matter not can solve data safety and be persistently stored will establish persistent storage on fragile storage medium, need
To use corresponding strategy and technology.Currently either personal or company, data volume sustainable growth, data storage problem is increasingly
It is prominent.General enterprises use centralised storage, and limited data reliability, but the capacity that can be provided are improved using disk mirroring
It is limited.There are also some enterprises to use NAS (Network Attached Storage network attached storage, abbreviation NAS) and SAN
(network of gigabit rate, abbreviation SAN, it is higher that it relies on connection of the optical-fibre channel between server and storage equipment to provide
Handling capacity, support farther distance to be connected to more reliable) technology carries out data storage, but NAS and SAN memory technology
Expense is larger, even if enterprise can bear once to put into, also unbearable lasting capacity extensions and system smooth upgrade institute are continuous
The expense of generation.Meanwhile the maintenance difficulties of NAS and SAN memory technology are big, need to seek advice from or engage professional's maintenance.Distribution
The appearance of formula storage, solves the above problem to a certain extent.But traditional distributed file system is in scalability, reliability
The needs of meeting under the new situation is difficult to data access performance etc..For example, for existing distributed storage architecture HDFS
(Hadoop Distributed File System distributed file system, abbreviation HDFS), due to the big handling capacity number of HDFS
According to being designed by cost of certain time-delay, so that HDFS, which is poorly suited for those, requires low delay, for example, delay is not higher than number
Ten milliseconds of application program.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of storage of file and update method and devices, to solve existing skill
The longer problem of the existing access delay of distributed file system in art.
According in a first aspect, the embodiment of the invention provides a kind of file memory methods, comprising: receive what client was sent
File write request, and extract the data block information in the file write request；Obtain the status information of memory node, and root
Memory node is screened according to the status information of the memory node, generates storage address information.
File memory method provided in an embodiment of the present invention will need the file stored to be divided into several data by client
Block is that each data block distributes storage address by management node, since management node only executes allocations of storage addresses work,
Work is stored without participating in time-consuming file block and specific data block, script is turned by the multinomial work that management node executes
Client and memory node are moved to, to significantly reduce the workload of management node, client access delay is avoided, solves
The longer problem of the existing access delay of distributed file system in the prior art.
With reference to first aspect, in first aspect first embodiment, in the file write-in that the reception client is sent
Before request, the file memory method further include: acquisition request time；Judge whether the request time is greater than preset time
Threshold value；When the request time is greater than preset time threshold, the file write request is forwarded.
File memory method provided in an embodiment of the present invention, while multiple management nodes are set, it is saved for a certain management
When the access request time of point is longer, corresponding file write request is forwarded to the processing of other management nodes in time, thus into
One step reduces access delay.
With reference to first aspect, in first aspect second embodiment, the status information for obtaining memory node, and root
Memory node is screened according to the status information of the memory node, generates storage address information, comprising: receives the memory node hair
The heartbeat message sent, and judge whether corresponding memory node is effective according to the heartbeat message；When the memory node is effective
When, obtain corresponding storage information；According to the corresponding memory node of the storage information sifting；According to the memory node filtered out
Generate storage address information.
Whether file memory method provided in an embodiment of the present invention is examined in terms of validity and memory space abundant etc. two
The current state of memory node is examined, to filter out this specific memory node for executing data storage, is conducive to improve data
The reliability of storage.
Second embodiment with reference to first aspect, in first aspect third embodiment, the acquisition memory node
Status information, and memory node is screened according to the status information of the memory node, generate storage address information, further includes: when
When the memory node is invalid, data block in the memory node is replicated to other memory nodes.
File memory method provided in an embodiment of the present invention has in time saved it when finding that memory node is invalid
Data block goes to other memory nodes, to avoid loss of data, is conducive to the reliability for improving data storage.
With reference to first aspect, described after the generation storage address information in the 4th embodiment of first aspect
File memory method further include: send institute to corresponding memory node by the client and according to the storage address information
State data block；The data block is stored by the memory node, and replicates the data block at least one other storage and saves
Point.
File memory method provided in an embodiment of the present invention is completed by the data transmission between client and memory node
Data storage, and data backup is executed by memory node, data storing work is broken the whole up into parts, at distribution to different objects
Reason is conducive to provide the efficiency of data storage, reduces delay.
According to second aspect, the embodiment of the invention provides a kind of file updating methods, comprising: receives what client was sent
File updates request, and extracts the file and update the data block information in requesting；The data block is using such as first aspect
Or the data block of the storage of file memory method described in first aspect any embodiment；According to data block information acquisition pair
The more new address information answered.
File updating method provided in an embodiment of the present invention is that the data block retrieval for needing to update corresponds to by management node
Storage address update work without participating in time-consuming data block since management node only executes storage address retrieval work,
Script is transferred to client and memory node by the specific update work that management node executes, to significantly reduce management section
The workload of point avoids client access delay, solve the existing access delay of distributed file system in the prior art compared with
Long problem.
In conjunction with second aspect, in second aspect first embodiment, described according to data block information acquisition pair
After the more new address information answered, the file updating method further include: by the client and according to the update ground
Location information sends the more new data block of the data block to corresponding memory node；The update is stored by the memory node
Data block.
File updating method provided in an embodiment of the present invention is completed by the data transmission between client and memory node
Data update, and data more fine workmanship is made to break the whole up into parts, and distribution to different object handles is conducive to provide the efficiency of data update,
Reduce delay.
According to the third aspect, the embodiment of the invention provides a kind of file storage devices, comprising: the first input unit is used
In the file write request that reception client is sent, and extract the data block information in the file write request；First address
Allocation unit screens memory node for obtaining the status information of memory node, and according to the status information of the memory node,
Generate storage address information.
According to fourth aspect, the embodiment of the invention provides a kind of file updating devices, comprising: the second input unit is used
Request is updated in receiving the file that client is sent, and extracts the data block information in the file update request；The data
Block is using the data block such as file memory method described in any one of claims 1 to 6 storage；The distribution of second address is single
Member, for obtaining corresponding more new address information according to the data block information.
According to the 5th aspect, the embodiment of the invention provides a kind of terminal devices, including memory, processor and storage
In the memory and the computer program that can run on the processor, the processor execute the computer program
The step of file memory method of the Shi Shixian as described in first aspect or first aspect any embodiment, alternatively, the processing
Device realizes the file updating method as described in second aspect or second aspect any embodiment when executing the computer program
The step of.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the application scenarios schematic diagram of the embodiment of the present invention；
Fig. 2 is the flow chart of a specific example of file memory method provided in an embodiment of the present invention；
Fig. 3 is the flow chart of another specific example of file memory method provided in an embodiment of the present invention；
Fig. 4 is the flow chart of a specific example of file updating method provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of a specific example of file storage device provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of a specific example of file updating device provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of a specific example of terminal device provided in an embodiment of the present invention.
Specific embodiment
In being described below, for illustration and not for limitation, the tool of such as particular system structure, technology etc is proposed
Body details, to understand thoroughly the embodiment of the present invention.However, it will be clear to one skilled in the art that there is no these specific
The present invention also may be implemented in the other embodiments of details.In other situations, it omits to well-known system, device, electricity
The detailed description of road and method, in case unnecessary details interferes description of the invention.
In order to illustrate technical solutions according to the invention, the following is a description of specific embodiments.
Fig. 1 is the application scenarios schematic diagram of the embodiment of the present invention.In Fig. 1, client 100 is communicated with management node 200
Connection, client 100 send file operation requests (for example, file write request, file update request and file reading is asked first
It asks)；Screening can be corresponded to after a certain 200 acceptance documents operation requests of management node or searched can provide clothes for client 100
The memory node 300 of business, and the address list of the memory node 300 filtered out is sent to client 100；Finally, by client
End 100 and corresponding memory node 300 cooperate, and complete the concrete operations to file, for example, file write-in, file update
With file read etc..
In some embodiments, as shown in Fig. 2, management node 200 can be realized by executing following steps to file
Storage:
Step S101: receiving the file write request that client is sent, and the data block letter in extraction document write request
Breath.In a specific embodiment, when client 100 needs to store a certain file, client 100 can be first by this document
It is divided into several data blocks；Then, client 100 can generate corresponding file write request according to above-mentioned data block, and
This document write request is sent to a randomly selected management node 200.The management node chosen at random by client 100
200 how just at idle state, then can receive file write request by the management node 200；But if the management section
Point 200 is handling alternative document operation requests, in order to avoid the file write request sent to active client 100 causes to prolong
When, as shown in figure 3, the write request that transmits a document can be realized by executing following several steps, so that other free time
Management node 200 can receive in time this document write request:
Step S100: the acquisition request time simultaneously judges whether request time is greater than preset time threshold.In practical application, in advance
If time threshold can be a lesser time, such as several milliseconds.When being greater than preset time threshold between upon request, step is executed
Rapid S100 '；When being less than or equal to preset time threshold between upon request, step S101 is executed.
Step S100 ': transmit a document write request.It, should before other management nodes 200 receive this document write request
Other management nodes 200 can also execute step S100, so that it is determined that whether it can receive and process this document write request.
By the way that multiple management nodes 200 are arranged, existing HDFS is improved, the structure of single host node is improved to more host nodes
Structure, thus client concentrate initiate file operation requests when, avoid the occurrence of for a long time be delayed, improve to file storage etc.
The working efficiency of various operations.
Step S102: obtaining the status information of memory node, and screen memory node according to the status information of memory node,
Generate storage address information.When being screened to each memory node 300, can from validity and residual memory space this two
From the aspect of a.Validity screening for memory node, can be by each memory node 300 periodically to management node 200
The heartbeat message of transmission is realized；And the residual memory space of memory node is screened, then it can pass through each memory node
300 periodically realize to the data block lists that management node 200 is fed back.It in a specific embodiment, as shown in figure 3, can be with
The process of step S102 is realized by following sub-step:
Step S1021: the heartbeat message that memory node is sent is received, and corresponding memory node is judged according to heartbeat message
Whether effectively.Each memory node 300 keeps contacting with it by sending heartbeat to management node 200, for example, can be with 3
Second sends heartbeat message to management node 200 for the period.When management node 200 can persistently receive the heart of memory node 300
When hop-information, it is possible to determine that corresponding memory node is effective, thens follow the steps S1022 when the continuous long period of management node 200
When not receiving the heartbeat message of memory node 300, it is possible to determine that corresponding memory node has been lost, i.e., corresponding memory node
Failure, thens follow the steps S1025；
Step S1022: corresponding storage information is obtained.In addition to heartbeat message, each memory node 300 can also be periodically to pipe
Reason node reports the relevant information of the data block itself saved, may include the identification information and data amount information of data block.
By the currently stored information of each memory node 300, it can be found that the data volume of which memory node 300 is larger, which is deposited
The data volume for storing up node 300 is smaller, and then identifies the biggish memory node of residual memory space.
Step S1023: according to the corresponding memory node of storage information sifting.In practical applications, residue can be screened to deposit
Store up the biggish memory node in space, the object as current file write request.
Step S1024: storage address information is generated according to the memory node filtered out.Management node 200 can will screen
The address of memory node 300 out feeds back to client 100 in the form of a list.
Step S1025: the data block in duplication memory node is to other memory nodes.In order to avoid loss of data, and mention
The reliability of high data storage, can be in the memory node 300 of discovery failure, and active operation replicates in the failure memory node
Data block to other effective memory nodes.
Optionally, as shown in figure 3, following steps can also be added after step s 102:
Step S103: data block is sent to corresponding memory node by client and according to storage address information.According to
The storage address information that management node 200 is fed back will need each data block stored to be sent to different memory nodes respectively
300。
Step S104: by memory node storing data block, and copied chunks are at least one other memory node.Often
The memory node 300 of one reception data block is while completion data block is locally stored, it is also necessary to which data block is replicated and backed up
It stores on other memory nodes, realizes the redundancy backup of each data block, to ensure storage safety.In practical application
In, can set redundancy backup quantity, the embodiment of the present invention to this with no restriction.
File memory method provided in an embodiment of the present invention will need the file stored to be divided into several data by client
Block is that each data block distributes storage address by management node, since management node only executes allocations of storage addresses work,
Work is stored without participating in time-consuming file block and specific data block, script is turned by the multinomial work that management node executes
Client and memory node are moved to, to significantly reduce the workload of management node, client access delay is avoided, solves
The longer problem of the existing access delay of distributed file system in the prior art.
The embodiment of the invention also provides a kind of file updating methods, are suitable for management node 200, as shown in figure 4, this article
Part update method may comprise steps of:
Step S401: it receives the file that client is sent and updates request, and extraction document updates the data block letter in request
Breath.Specifically, data block is the data block using the file memory method storage as described in Fig. 2 or Fig. 3.In a specific embodiment party
In formula, management node 200 can also judge whether that receiving file updates request using method described in step S100, to avoid
This document updates request and is delayed by processing.
Step S402: corresponding more new address information is obtained according to data block information.Periodically due to each memory node 300
Send respective storage information to management node 200 so that management node 200 by retrieval can filter out be stored with it is to be updated
Whole memory nodes 300 of data block the address list of these memory nodes 300 is generated into more new address information.
Optionally, after step S402, file updating method can with the following steps are included:
Step S403: the update of data block is sent to corresponding memory node by client and according to more new address information
Data block.Client 100 is corresponded to data block to be updated more after the more new address information for receiving the feedback of management node 200
New data block is sent to each memory node 300 for being stored with more new data block originally, so as to the execution of corresponding memory node 300
Specific data more new task.
Step S404: more new data block is stored by memory node.Each memory node for being stored with data block to be updated
300 receive and store more new data block, to complete data more new task.It, can be with for the corresponding data block stored before
Continue to save, can also do delete processing, the embodiment of the present invention to this with no restriction.
File updating method provided in an embodiment of the present invention is that the data block retrieval for needing to update corresponds to by management node
Storage address update work without participating in time-consuming data block since management node only executes storage address retrieval work,
Script is transferred to client and memory node by the specific update work that management node executes, to significantly reduce management section
The workload of point avoids client access delay, solve the existing access delay of distributed file system in the prior art compared with
Long problem.
It should be understood that the size of the serial number of each step is not meant that the order of the execution order in above method embodiment, respectively
The execution sequence of process should be determined by its function and internal logic, and the implementation process without coping with the embodiment of the present invention constitutes any
It limits.
The embodiment of the invention also provides a kind of file storage devices, as shown in figure 5, this document storage device can wrap
It includes: the first input unit 501 and the first allocation unit 502.
Wherein, the first input unit 501 is used to receive the file write request of client transmission, and extraction document write-in is asked
Data block information in asking；Its specific course of work can be found in above method embodiment described in step S101.
First allocation unit 502 is used to obtain the status information of memory node, and is believed according to the state of memory node
Breath screening memory node, generates storage address information；Its specific course of work can be found in step in above method embodiment
Described in S102.
The embodiment of the invention also provides a kind of file updating devices, as shown in fig. 6, this document updating device can wrap
It includes: the second input unit 601 and the second allocation unit 602.
Wherein, the file that the second input unit 601 is used to receive client transmission updates request, and extraction document update is asked
Data block information in asking；Data block is the data block stored using file memory method as shown in Figure 2 or Figure 3；It is specific
The course of work can be found in above method embodiment described in step S401.
Second allocation unit 602 is used to obtain corresponding more new address information according to data block information；It is specific
The course of work can be found in above method embodiment described in step S402.
The embodiment of the invention also provides a kind of terminal devices, as shown in fig. 7, the terminal device may include processor
701 and memory 702, wherein processor 701 can be connected with memory 702 by bus or other modes, with logical in Fig. 7
It crosses for bus connection.
Processor 701 can be central processing unit (Central Processing Unit, CPU).Processor 701 may be used also
Think other general processors, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit
(Application Specific Integrated Circuit, ASIC), field programmable gate array (Field-
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
The combination of the chips such as discrete hardware components or above-mentioned all kinds of chips.
Memory 702 is used as a kind of non-transient computer readable storage medium, can be used for storing non-transient software program, non-
Transient computer executable program and module, such as the file memory method or file updating method correspondence in the embodiment of the present invention
Program instruction/module (for example, shown in the first input unit 501 shown in fig. 5 and the first allocation unit 502 or Fig. 6
The second input unit 601 and the second allocation unit 602).Processor 701 is stored in memory 702 by operation
Non-transient software program, instruction and module are realized thereby executing the various function application and data processing of processor
State the file memory method or file updating method in embodiment of the method.
Memory 702 may include storing program area and storage data area, wherein storing program area can store operation system
Application program required for system, at least one function；It storage data area can the data etc. that are created of storage processor 701.In addition,
Memory 702 may include high-speed random access memory, can also include non-transient memory, and a for example, at least disk is deposited
Memory device, flush memory device or other non-transient solid-state memories.In some embodiments, it includes opposite that memory 702 is optional
In the remotely located memory of processor 701, these remote memories can pass through network connection to processor 701.Above-mentioned net
The example of network includes but is not limited to internet, intranet, local area network, mobile radio communication and combinations thereof.
One or more of modules are stored in the memory 702, when being executed by the processor 701, are held
File memory method or file updating method in row embodiment as shown in Figures 2 to 4.
Above-mentioned terminal device detail can correspond to refering to Fig. 2 into embodiment shown in Fig. 4 corresponding associated description
Understood with effect, details are not described herein again.
It is that can lead to it will be understood by those skilled in the art that realizing all or part of the process in above-described embodiment method
Computer program is crossed to instruct relevant hardware and complete, the program can be stored in a computer-readable storage medium
In, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, the storage medium can for magnetic disk,
CD, read-only memory (Read-Only Memory, ROM), random access memory (Random Access
Memory, RAM), flash memory (FlashMemory), hard disk (Hard Disk Drive, abbreviation: HDD) or solid state hard disk
(Solid-State Drive, SSD) etc.；The storage medium can also include the combination of the memory of mentioned kind.
Embodiment described above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although referring to aforementioned reality
Applying example, invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each
Technical solution documented by embodiment is modified or equivalent replacement of some of the technical features；And these are modified
Or replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution should all
It is included within protection scope of the present invention.
Claims (10)
1. a kind of file memory method characterized by comprising
The file write request that client is sent is received, and extracts the data block information in the file write request；
The status information of memory node is obtained, and memory node is screened according to the status information of the memory node, generates storage
Address information.
2. file memory method as described in claim 1, which is characterized in that in the file write-in that the reception client is sent
Before request, the file memory method further include:
The acquisition request time；
Judge whether the request time is greater than preset time threshold；
When the request time is greater than preset time threshold, the file write request is forwarded.
3. file memory method as described in claim 1, which is characterized in that the status information for obtaining memory node, and
Memory node is screened according to the status information of the memory node, generates storage address information, comprising:
The heartbeat message that the memory node is sent is received, and judges whether corresponding memory node has according to the heartbeat message
Effect；
When the memory node is effective, corresponding storage information is obtained；
According to the corresponding memory node of the storage information sifting；
Storage address information is generated according to the memory node filtered out.
4. file memory method as claimed in claim 3, which is characterized in that the status information for obtaining memory node, and
Memory node is screened according to the status information of the memory node, generates storage address information, further includes:
When the memory node is invalid, data block in the memory node is replicated to other memory nodes.
5. file memory method as described in claim 1, which is characterized in that after the generation storage address information, institute
State file memory method further include:
The data block is sent to corresponding memory node by the client and according to the storage address information；
The data block is stored by the memory node, and replicates the data block at least one other memory node.
6. a kind of file updating method characterized by comprising
It receives the file that client is sent and updates request, and extract the data block information in the file update request；The number
According to the data block that block is using the file memory method storage as described in any one of claims 1 to 5；
Corresponding more new address information is obtained according to the data block information.
7. file updating method as claimed in claim 6, which is characterized in that described according to data block information acquisition pair
After the more new address information answered, the file updating method further include:
The update of the data block is sent to corresponding memory node by the client and according to the more new address information
Data block；
The more new data block is stored by the memory node.
8. a kind of file storage device characterized by comprising
First input unit for receiving the file write request of client transmission, and extracts in the file write request
Data block information；
First allocation unit, for obtaining the status information of memory node, and according to the status information of the memory node
Memory node is screened, storage address information is generated.
9. a kind of file updating device characterized by comprising
Second input unit, the file for receiving client transmission updates request, and extracts the file and update in request
Data block information；The data block is using the data such as file memory method described in any one of claims 1 to 6 storage
Block；
Second allocation unit, for obtaining corresponding more new address information according to the data block information.
10. a kind of terminal device, including memory, processor and storage are in the memory and can be on the processor
The computer program of operation, which is characterized in that the processor realizes such as claim 1 to 5 when executing the computer program
Any one of described in file memory method the step of, alternatively, the processor execute the computer program when realize as weigh
Benefit require 6 or 7 described in file updating method the step of.
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| CN111046014A (en) * | 2019-12-24 | 2020-04-21 | 广州众鑫达科技有限公司 | File distributed storage system, method and device and electronic equipment |
| CN111209263A (en) * | 2020-01-14 | 2020-05-29 | 中国建设银行股份有限公司 | Data storage method, device, equipment and storage medium |
| CN111767169A (en) * | 2020-06-28 | 2020-10-13 | 北京百度网讯科技有限公司 | Data processing method and device, electronic equipment and storage medium |
| CN112543213A (en) * | 2019-09-23 | 2021-03-23 | 杭州海康威视数字技术股份有限公司 | Data processing method and device |
| CN116166194A (en) * | 2023-01-16 | 2023-05-26 | 广州辰创科技发展有限公司 | Equipment guarantee maintenance and management method and system |
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