CN111177079A - Network file system data reading method, device, equipment and medium - Google Patents
Network file system data reading method, device, equipment and medium Download PDFInfo
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- CN111177079A CN111177079A CN201911402883.8A CN201911402883A CN111177079A CN 111177079 A CN111177079 A CN 111177079A CN 201911402883 A CN201911402883 A CN 201911402883A CN 111177079 A CN111177079 A CN 111177079A
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- G06F16/10—File systems; File servers
- G06F16/13—File access structures, e.g. distributed indices
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/17—Details of further file system functions
- G06F16/172—Caching, prefetching or hoarding of files
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
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Abstract
The application discloses a method, a device, equipment and a medium for reading network file system data, wherein the method comprises the following steps: acquiring a data reading command; starting a data reading process aiming at a local preset client cache file system according to the data reading command, wherein the preset client cache file system is a cache file system which is established based on the fscache technology and is used for storing network file system data; and if the target data is hit in the preset client cache file system, returning the target data. Therefore, after the data reading command is obtained, the data reading process aiming at the local preset client cache file system is started according to the data reading command, and if the target data is hit in the preset client cache file system, the target data can be returned. Therefore, data can be read from the preset client cache file system, and the data reading hit rate and the data reading efficiency are improved.
Description
Technical Field
The present application relates to the field of network file system technologies, and in particular, to a method, an apparatus, a device, and a medium for reading data in a network file system.
Background
In the network file system, data reading is divided into direct io and buffer io. The direct io directly and synchronously acquires data from the rear-end storage cluster in real time, is influenced by network factors and the like, and has low efficiency; the buffer io method generally adopts a pre-reading algorithm, a part of pre-read data is placed in a cache region, a client can read the data from the pre-read cache region, and if the data cache region has no hit data, the data is asynchronously read from a back-end storage cluster.
Disclosure of Invention
In view of the above, an object of the present application is to provide a method, an apparatus, a device, and a medium for reading data from a network file system, which can read data from a preset client cache file system, and improve data reading hit rate and data reading efficiency. The specific scheme is as follows:
in a first aspect, the present application discloses a method for reading data of a network file system, which is applied to a client and includes:
acquiring a data reading command;
starting a data reading process aiming at a local preset client cache file system according to the data reading command, wherein the preset client cache file system is a cache file system which is established based on the fscache technology and is used for storing network file system data;
and if the target data is hit in the preset client cache file system, returning the target data.
Optionally, before the obtaining the data read command, the method further includes:
and establishing the preset client cache file system locally.
Optionally, the locally establishing the preset client cache file system includes:
acquiring a file system establishing instruction;
establishing a cache file system based on the fscache technology according to the file system establishing instruction;
and mounting the cache file system on a local target disk to obtain the preset client cache file system.
Optionally, the mounting the cache file system to a local target disk includes;
and mounting the cache file system to a local destination SSD.
Optionally, after starting a data reading process for a local preset client cache file system according to the data reading command, the method further includes:
if the target data is not hit in the preset client cache file system, reading the target data from the corresponding back-end storage cluster according to the data reading command;
and returning the target data and storing the target data into the preset client cache file system.
Optionally, the storing the target data in the preset client cache file system includes:
and storing the target data into the preset client cache file system according to a tree structure.
Optionally, after returning the target data, the method further includes:
and visually displaying the target data.
In a second aspect, the present application discloses a network file system data reading apparatus, applied to a client, including:
the command acquisition module is used for acquiring a data reading command;
the data reading process starting module is used for starting a data reading process aiming at a local preset client cache file system according to the data reading command, wherein the preset client cache file system is a cache file system which is established based on the fscache technology and is used for storing network file system data;
and the data return module is used for returning the target data when the target data is hit in the preset client cache file system.
In a third aspect, the present application discloses a network file system data reading device, including:
a memory and a processor;
wherein the memory is used for storing a computer program;
the processor is configured to execute the computer program to implement the network file system data reading method disclosed above.
In a fourth aspect, the present application discloses a computer readable storage medium for storing a computer program, wherein the computer program, when executed by a processor, implements the network file system data reading method disclosed in the foregoing.
Therefore, the data reading command is firstly obtained; starting a data reading process aiming at a local preset client cache file system according to the data reading command, wherein the preset client cache file system is a cache file system which is established based on the fscache technology and is used for storing network file system data; and if the target data is hit in the preset client cache file system, returning the target data. Therefore, after the data reading command is obtained, the data reading process aiming at the local preset client cache file system is started according to the data reading command, and if the target data is hit in the preset client cache file system, the target data can be returned. Therefore, data can be read from the preset client cache file system, and the data reading hit rate and the data reading efficiency are improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a flow chart of a method for reading network file system data disclosed in the present application;
FIG. 2 is a flow chart of a specific network file system data reading method disclosed in the present application;
FIG. 3 is a diagram of a data storage structure in a preset client file system according to the present disclosure;
FIG. 4 is a diagram of a data read activity for a network file system as disclosed herein;
FIG. 5 is a schematic structural diagram of a network file system data reading apparatus disclosed in the present application;
FIG. 6 is a block diagram of a network file system data reading device disclosed in the present application;
fig. 7 is a structural diagram of a user terminal disclosed in the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Currently, in a network file system, data reading is divided into direct io and buffer io. The direct io directly and synchronously acquires data from the rear-end storage cluster in real time, is influenced by network factors and the like, and has low efficiency; the buffer io method generally adopts a pre-reading algorithm, a part of pre-read data is placed in a cache region, a client can read the data from the pre-read cache region, and if the data cache region has no hit data, the data is asynchronously read from a back-end storage cluster. In view of this, the present application provides a method for reading data in a network file system, which can read data from a preset client cache file system, and improve data reading hit rate and data reading efficiency.
Referring to fig. 1, an embodiment of the present application discloses a method for reading network file system data, which is applied to a client, and the method includes:
step S11: a data read command is obtained.
It can be understood that when a user needs to perform a data reading operation, a corresponding data reading command is triggered, so that the data reading command needs to be acquired first to determine target data to be read, and corresponding data is read according to the data reading command. Before the obtaining the data reading command, further comprising: and establishing a preset client cache file system locally.
Step S12: and starting a data reading process aiming at a local preset client cache file system according to the data reading command, wherein the preset client cache file system is a cache file system which is established based on the fscache technology and is used for storing network file system data.
After the data reading command is obtained, the data reading command needs to be obtained. Starting a data reading process aiming at a local preset client cache file system, wherein the preset client cache file system is a cache file system which is established based on fscache technology and is used for storing network file system data, and when the preset client cache file system is large enough, a large amount of or all cluster data can be stored.
Step S13: and if the target data is hit in the preset client cache file system, returning the target data.
In a specific implementation process, after a data reading process for the local preset client cache file system is started, it is further required to see whether target data corresponding to the data reading command is commanded in the local preset client cache file system. If the target data is hit in the preset client cache file system, returning the target data; and if the target data is not hit in the preset client cache file system, reading the target data from the corresponding back-end storage cluster according to the data reading command, returning the target data, and storing the target data in the preset client cache file system so as to directly hit the corresponding target data in the preset client cache file system when the target data is read again. The storing the target data into the preset client cache file system includes: and storing the target data into the preset client cache file system according to a tree structure. After the target data is returned, the method further comprises: and visually displaying the target data.
Therefore, the data reading command is firstly obtained; starting a data reading process aiming at a local preset client cache file system according to the data reading command, wherein the preset client cache file system is a cache file system which is established based on the fscache technology and is used for storing network file system data; and if the target data is hit in the preset client cache file system, returning the target data. Therefore, after the data reading command is obtained, the data reading process aiming at the local preset client cache file system is started according to the data reading command, and if the target data is hit in the preset client cache file system, the target data can be returned. Therefore, data can be read from the preset client cache file system, and the data reading hit rate and the data reading efficiency are improved.
Referring to fig. 2, an embodiment of the present application discloses a specific network file system data reading method, which is applied to a client, and the method includes:
step S21: and acquiring a file system establishing instruction.
In this embodiment, the preset client cache file system needs to be established locally. The locally establishing the preset client cache file system comprises the following steps: acquiring a file system establishing instruction; establishing a cache file system based on the fscache technology according to the file system establishing instruction; and mounting the cache file system on a local target disk to obtain the preset client cache file system. That is, a file system establishing instruction needs to be obtained first, so as to establish the preset client cache file system according to the file system establishing instruction.
Step S22: and establishing a cache file system based on the fscache technology according to the file system establishing instruction.
After the file system establishing instruction is obtained, a fscache technology-based cache file system needs to be established according to the file system establishing instruction. The cache file system is used for storing data in the network file system. When the cache file system is large enough, a large amount of or all cluster data in the network file system can be stored locally, so that the hit rate of read data in the cache file system can be improved, and the data reading efficiency is improved.
Step S23: and mounting the cache file system on a local target disk to obtain the preset client cache file system.
In a specific implementation process, after the cache file system is established, the cache file system needs to be mounted on a local target disk, so as to obtain the preset client cache file system. The target disk may be in a local cache medium. The mounting the cache file system to a local target disk includes: and mounting the cache file system to a local destination SSD.
And after the preset client cache file system is obtained, the first data reading is directly read from the back-end cluster disk, the read data is returned, and the read data is stored in the preset client cache file system. Referring to fig. 3, the diagram is a data storage structure diagram in the preset client file system. Disk in the figure represents a disk mounted with the preset client cache file system, and data in the preset client cache file system is stored according to a tree structure.
Step S24: a data read command is obtained.
Step S25: and starting a data reading process aiming at a local preset client cache file system according to the data reading command.
Step S26: and if the target data is hit in the preset client cache file system, returning the target data.
The specific processes from step S24 to step S26 may refer to the corresponding contents disclosed in the foregoing embodiments, and are not described herein again.
Referring to FIG. 4, an activity diagram for network file system data reading is shown. When data is read for the first time after a preset client side cache file system is established, the data is directly read from a back end cluster disk (disk), the read data is returned and stored to the preset client side cache file system, when the data is read again, the preset client side cache file system is accessed firstly, and if target data is not hit in the preset client side cache file system, the target data is read from a corresponding back end storage cluster according to the data reading command; and returning the target data and storing the target data into the preset client cache file system. And if the target data is hit in the preset client cache file system, directly returning the target data.
Referring to fig. 5, an embodiment of the present application discloses a network file system data reading apparatus, which is applied to a client, and includes:
a command acquiring module 11, configured to acquire a data reading command;
a data reading process starting module 12, configured to start a data reading process for a local preset client cache file system according to the data reading command, where the preset client cache file system is a cache file system established based on an fscache technology and used for storing network file system data;
a data returning module 13, configured to return the target data when the target data is hit in the preset client cache file system.
Therefore, the data reading command is firstly obtained; starting a data reading process aiming at a local preset client cache file system according to the data reading command, wherein the preset client cache file system is a cache file system which is established based on the fscache technology and is used for storing network file system data; and if the target data is hit in the preset client cache file system, returning the target data. Therefore, after the data reading command is obtained, the data reading process aiming at the local preset client cache file system is started according to the data reading command, and if the target data is hit in the preset client cache file system, the target data can be returned. Therefore, data can be read from the preset client cache file system, and the data reading hit rate and the data reading efficiency are improved.
Further, referring to fig. 6, an embodiment of the present application further discloses a network file system data reading device, including: a processor and a memory.
Wherein the memory is used for storing a computer program; the processor is configured to execute the computer program to implement the network file system data reading method disclosed in the foregoing embodiment.
For a specific process of the network file system data reading method, reference may be made to corresponding contents disclosed in the foregoing embodiments, and details are not repeated here.
Further, the application also discloses an electronic device. The electronic device may be a user terminal. Fig. 7 is a schematic structural diagram of a user terminal 20 according to an embodiment of the present disclosure, where the user terminal may specifically include, but is not limited to, a tablet computer, a notebook computer, or a desktop computer.
Generally, the user terminal 20 in the present embodiment includes: a processor 21 and a memory 22.
The processor 21 may include one or more processing cores, such as a four-core processor, an eight-core processor, and so on. The processor 21 may be implemented by at least one hardware of a DSP (digital signal processing), an FPGA (field-programmable gate array), and a PLA (programmable logic array). The processor 21 may also include a main processor and a coprocessor, where the main processor is a processor for processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 21 may be integrated with a GPU (graphics processing unit) which is responsible for rendering and drawing images to be displayed on the display screen. In some embodiments, the processor 21 may include an AI (artificial intelligence) processor for processing a calculation operation related to machine learning.
In some embodiments, user terminal 20 may also include a display 23, an input-output interface 24, a communication interface 25, a sensor 26, a power supply 27, and a communication bus 28.
Those skilled in the art will appreciate that the configuration shown in fig. 7 is not intended to be limiting of user terminal 20 and may include more or fewer components than those shown.
Further, an embodiment of the present application also discloses a computer readable storage medium for storing a computer program, wherein the computer program, when executed by a processor, implements the following steps:
acquiring a data reading command; starting a data reading process aiming at a local preset client cache file system according to the data reading command, wherein the preset client cache file system is a cache file system which is established based on the fscache technology and is used for storing network file system data; and if the target data is hit in the preset client cache file system, returning the target data.
Therefore, the data reading command is firstly obtained; starting a data reading process aiming at a local preset client cache file system according to the data reading command, wherein the preset client cache file system is a cache file system which is established based on the fscache technology and is used for storing network file system data; and if the target data is hit in the preset client cache file system, returning the target data. Therefore, after the data reading command is obtained, the data reading process aiming at the local preset client cache file system is started according to the data reading command, and if the target data is hit in the preset client cache file system, the target data can be returned. Therefore, data can be read from the preset client cache file system, and the data reading hit rate and the data reading efficiency are improved.
In this embodiment, when the computer subprogram stored in the computer-readable storage medium is executed by the processor, the following steps may be specifically implemented: and establishing the preset client cache file system locally.
In this embodiment, when the computer subprogram stored in the computer-readable storage medium is executed by the processor, the following steps may be specifically implemented: acquiring a file system establishing instruction; establishing a cache file system based on the fscache technology according to the file system establishing instruction; and mounting the cache file system on a local target disk to obtain the preset client cache file system.
In this embodiment, when the computer subprogram stored in the computer-readable storage medium is executed by the processor, the following steps may be specifically implemented: and mounting the cache file system to a local destination SSD.
In this embodiment, when the computer subprogram stored in the computer-readable storage medium is executed by the processor, the following steps may be specifically implemented: if the target data is not hit in the preset client cache file system, reading the target data from the corresponding back-end storage cluster according to the data reading command; and returning the target data and storing the target data into the preset client cache file system.
In this embodiment, when the computer subprogram stored in the computer-readable storage medium is executed by the processor, the following steps may be specifically implemented: and storing the target data into the preset client cache file system according to a tree structure.
In this embodiment, when the computer subprogram stored in the computer-readable storage medium is executed by the processor, the following steps may be specifically implemented: and visually displaying the target data.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
Finally, it is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of other elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing describes a method, an apparatus, a device, and a medium for reading network file system data provided by the present application in detail, and a specific example is applied in the present application to explain the principle and the implementation of the present application, and the description of the foregoing embodiment is only used to help understand the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A network file system data reading method is applied to a client and comprises the following steps:
acquiring a data reading command;
starting a data reading process aiming at a local preset client cache file system according to the data reading command, wherein the preset client cache file system is a cache file system which is established based on the fscache technology and is used for storing network file system data;
and if the target data is hit in the preset client cache file system, returning the target data.
2. The method for reading data in a network file system according to claim 1, wherein before the obtaining the data reading command, the method further comprises:
and establishing the preset client cache file system locally.
3. The method for reading data in a network file system according to claim 2, wherein the locally establishing the preset client cache file system includes:
acquiring a file system establishing instruction;
establishing a cache file system based on the fscache technology according to the file system establishing instruction;
and mounting the cache file system on a local target disk to obtain the preset client cache file system.
4. The method for reading data of a network file system according to claim 3, wherein the mounting the cache file system on a local target disk comprises:
and mounting the cache file system to a local destination SSD.
5. The method according to claim 1, wherein after starting a data reading process for the local default client cache file system according to the data reading command, the method further comprises:
if the target data is not hit in the preset client cache file system, reading the target data from the corresponding back-end storage cluster according to the data reading command;
and returning the target data and storing the target data into the preset client cache file system.
6. The method according to claim 5, wherein the storing the target data in the preset client cache file system comprises:
and storing the target data into the preset client cache file system according to a tree structure.
7. The method according to claim 1, further comprising, after returning the target data:
and visually displaying the target data.
8. A network file system data reading device is applied to a client and comprises:
the command acquisition module is used for acquiring a data reading command;
the data reading process starting module is used for starting a data reading process aiming at a local preset client cache file system according to the data reading command, wherein the preset client cache file system is a cache file system which is established based on the fscache technology and is used for storing network file system data;
and the data return module is used for returning the target data when the target data is hit in the preset client cache file system.
9. A network file system data reading device, comprising:
a memory and a processor;
wherein the memory is used for storing a computer program;
the processor is configured to execute the computer program to implement the network file system data reading method according to any one of claims 1 to 7.
10. A computer-readable storage medium for storing a computer program, wherein the computer program when executed by a processor implements the network file system data reading method according to any one of claims 1 to 7.
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| CN201911402883.8A CN111177079A (en) | 2019-12-30 | 2019-12-30 | Network file system data reading method, device, equipment and medium |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112269538A (en) * | 2020-10-16 | 2021-01-26 | 苏州浪潮智能科技有限公司 | Data reading method, device, equipment and medium |
| CN112783843A (en) * | 2020-12-31 | 2021-05-11 | 北京聚云科技有限公司 | Data reading method and device and electronic equipment |
| CN114610691A (en) * | 2022-03-21 | 2022-06-10 | 苏州浪潮智能科技有限公司 | Storage object acquisition method, storage object acquisition device, equipment and medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108829835A (en) * | 2018-06-19 | 2018-11-16 | 深圳市瑞驰信息技术有限公司 | A kind of novel high speed cache file system architecture |
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2019
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108829835A (en) * | 2018-06-19 | 2018-11-16 | 深圳市瑞驰信息技术有限公司 | A kind of novel high speed cache file system architecture |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112269538A (en) * | 2020-10-16 | 2021-01-26 | 苏州浪潮智能科技有限公司 | Data reading method, device, equipment and medium |
| CN112269538B (en) * | 2020-10-16 | 2022-11-25 | 苏州浪潮智能科技有限公司 | Data reading method, device, equipment and medium |
| CN112783843A (en) * | 2020-12-31 | 2021-05-11 | 北京聚云科技有限公司 | Data reading method and device and electronic equipment |
| CN114610691A (en) * | 2022-03-21 | 2022-06-10 | 苏州浪潮智能科技有限公司 | Storage object acquisition method, storage object acquisition device, equipment and medium |
| CN114610691B (en) * | 2022-03-21 | 2024-01-30 | 苏州浪潮智能科技有限公司 | Storage object acquisition method, storage object acquisition device, equipment and medium |
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Application publication date: 20200519 |