CN109471843B - Metadata caching method, system and related device - Google Patents
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Abstract
The metadata caching method provided by the application comprises the following steps: receiving a request instruction for caching metadata; simplifying the metadata according to the request instruction to obtain simplified metadata; and caching the simplified metadata to a preset cache region in the storage node. The method comprises the steps of receiving a request instruction for caching metadata, simplifying the metadata according to the request instruction to obtain simplified metadata, and caching the simplified metadata to a preset cache region in a storage node. Compared with the related technology, the method simplifies the metadata, can improve the total amount of the cached metadata under the condition that the total memory of the storage node is not changed, and further improves the reading speed of the file. The application also provides a metadata caching system, a device and a computer readable storage medium, which have the beneficial effects.
Description
Technical Field
The present application relates to the field of metadata caching technologies, and in particular, to a metadata caching method, system, device, and computer-readable storage medium.
Background
The performance problem in the scene of massive small files of the distributed file system is a technical problem which is difficult to break through. In the distributed file system, if an access file cannot be cached locally, metadata needs to be accessed in a cluster network every time when the file is accessed based on the characteristics of the distributed file system, the execution process of IO read-write may also read the metadata across the network, and the time delay of file reading is increased by acquiring the metadata across the network every time when the file is operated, so the metadata needs to be cached.
Therefore, how to increase the total amount of cached metadata and further increase the file reading speed under the condition that the total memory of the storage node is not changed is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The application aims to provide a metadata caching method, a metadata caching system, a metadata caching device and a computer readable storage medium, which can improve the total amount of cached metadata under the condition that the total memory of a storage node is not changed, and further improve the reading speed of a file.
To solve the above technical problem, the present application provides a metadata caching method, including:
receiving a request instruction for caching metadata;
simplifying the metadata according to the request instruction to obtain simplified metadata;
and caching the simplified metadata to a preset cache region in a storage node.
Preferably, after caching the reduced metadata in a preset cache region in a storage node, the method further includes:
when reading target metadata, judging whether the target metadata exists in the preset cache region or not;
if yes, reading the target metadata from the preset cache region;
and if not, reading the target metadata from the memory of the storage node.
Preferably, after reading the target metadata from the memory of the storage node, the method further includes:
performing the simplification processing on the target metadata to obtain target simplified metadata;
caching the target simplified metadata to the preset cache region in the storage node.
Preferably, the performing a reduction process on the metadata according to the request instruction to obtain reduced metadata includes:
and eliminating the service operation data in the metadata according to the request instruction to obtain the simplified metadata.
After receiving a request instruction for caching metadata, the method further includes:
judging whether the quantity of the metadata reaches a preset threshold value or not;
and if so, executing the step of carrying out simplified processing on the metadata according to the request instruction to obtain simplified metadata.
The present application further provides a metadata caching system, including:
a request instruction receiving module, configured to receive a request instruction for caching metadata;
the simplification processing module is used for carrying out simplification processing on the metadata according to the request instruction to obtain simplified metadata;
and the metadata caching module is used for caching the simplified metadata to a preset cache region in a storage node.
Preferably, the metadata caching system further comprises:
the judging module is used for judging whether the target metadata exists in the preset cache region or not when the target metadata is read;
a first reading module, configured to read the target metadata from the preset cache region if the target metadata exists in the preset cache region;
a second reading module, configured to read the target metadata from the memory of the storage node if the target metadata does not exist in the preset cache region.
Preferably, the thin processing module includes:
and the simplified processing unit is used for eliminating the service operation data in the metadata according to the request instruction to obtain the simplified metadata.
The present application further provides an apparatus comprising:
a memory and a processor; the memory is used for storing a computer program, and the processor is used for implementing the steps of the metadata caching method when executing the computer program.
The present application further provides a computer-readable storage medium, which stores a computer program, and the computer program, when executed by a processor, implements the steps of the metadata caching method described above.
The metadata caching method provided by the application comprises the following steps: receiving a request instruction for caching metadata; simplifying the metadata according to the request instruction to obtain simplified metadata; and caching the simplified metadata to a preset cache region in a storage node.
The method comprises the steps of firstly receiving a request instruction for caching metadata, then carrying out simplification processing on the metadata according to the request instruction to obtain simplified metadata, and finally caching the simplified metadata to a preset cache region in a storage node. Compared with the related technology, the method simplifies the metadata, can improve the total amount of the cached metadata under the condition that the total memory of the storage node is not changed, and further improves the reading speed of the file. The present application further provides a metadata caching system, a device and a computer-readable storage medium, all having the above beneficial effects, which are not described herein again.
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 flowchart of a metadata caching method according to an embodiment of the present application;
fig. 2 is a block diagram of a metadata cache system according to an embodiment of the present disclosure.
Detailed Description
The core of the application is to provide a metadata caching method, which can improve the total amount of cached metadata under the condition that the total memory of a storage node is not changed, and further improve the reading speed of a file. At the other core of the application, a metadata caching system, a metadata caching device and a computer readable storage medium are provided.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, 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 some embodiments of the present application, but not all 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.
The performance problem in the scene of massive small files of the distributed file system is a technical problem which is difficult to break through. In the distributed file system, if an access file cannot be cached locally, metadata needs to be accessed in a cluster network every time when the file is accessed based on the characteristics of the distributed file system, the execution process of IO read-write may also read the metadata across the network, and the time delay of file reading is increased by acquiring the metadata across the network every time when the file is operated, so the metadata needs to be cached. According to the embodiment of the application, the total amount of the cached metadata can be increased under the condition that the total memory of the storage node is not changed, and the reading speed of the file is increased. Referring to fig. 1, fig. 1 is a flowchart of a metadata caching method according to an embodiment of the present application, where the metadata caching method specifically includes:
s101, receiving a request instruction of caching metadata;
the execution main body of the embodiment of the application is any storage node in the distributed storage system, and the storage node is a request instruction for receiving the cache metadata. In a distributed storage system, each storage node is typically a storage server, and the storage servers are interconnected through a high-speed network, that is, the storage nodes are interconnected through the high-speed network. The number of storage nodes in the distributed storage node is not particularly limited, and those skilled in the art should make corresponding settings according to the actual situation. The client sending the request instruction for caching metadata is not particularly limited, and may be, for example, an application server or an end user.
Further, after receiving the request instruction for caching metadata, the method generally further includes: judging whether the quantity of the metadata reaches a preset threshold value or not; if yes, the step of carrying out simplification processing on the metadata according to the request instruction to obtain simplified metadata is carried out. The magnitude of the preset threshold is not particularly limited, and should be set by those skilled in the art according to actual circumstances. If the quantity of the metadata reaches the preset threshold value, the metadata can be uniformly simplified in the embodiment of the application, so that the simplified metadata is obtained. For the case that the amount of the metadata does not reach the preset threshold, the subsequent execution operation is not particularly limited, and generally, the subsequent execution operation continues to wait until the amount of the metadata reaches the preset threshold.
S102, simplifying the metadata according to the request instruction to obtain simplified metadata;
after receiving a request instruction for caching metadata, a storage node in the embodiment of the application performs simplified processing on the metadata according to the request instruction to obtain simplified metadata. The metadata is briefly described here: data in any file system is divided into data and metadata; data refers to actual data in a general file, and metadata refers to system data used to describe characteristics of a file, such as access rights, file owner, and distribution information of file data blocks, etc. In a distributed file system, the distribution information includes the location of the file on the disk and the location of the disk in the cluster. A user needs to manipulate a file to first obtain its metadata to locate the file and obtain the content or related attributes of the file.
The metadata management method is not particularly limited, and those skilled in the art should make corresponding settings according to actual situations, and a distributed management method is usually adopted. Distributed management means that metadata is stored in any node of a system and can be dynamically migrated, and responsibility for metadata management is distributed to different nodes. The distributed metadata management has the advantages that the single failure point problem of centralized management is solved, and the performance cannot be bottleneck along with frequent operation.
The metadata comprises two parts, namely data needing to be stored in a disk and service operation data are preset for a user respectively. The content of the data that the user presets to be stored in the disk and the content of the service operation data are not specifically limited, and the technical personnel in the field should make corresponding settings according to the actual situation. The simplified metadata obtained in the embodiment of the application is data preset by a user and required to be stored in a disk, so that the way of simplifying the metadata is not particularly limited, for example, the data preset by the user and required to be stored in the disk can be directly stripped from the metadata, and service operation data in the metadata can be also removed.
Further, the above-mentioned performing a reduction process on the metadata according to the request instruction to obtain reduced metadata generally includes: and eliminating the service operation data in the metadata according to the request instruction to obtain the simplified metadata. The method for removing the service operation data in the metadata is not specifically limited herein, and a person skilled in the art should make corresponding settings according to actual situations and usually execute a preset program to perform a removal operation of the service operation data. The reason why the service operation data can be removed is that the service operation data can be reloaded in the subsequent process, so that only the simplified metadata needs to be cached during caching.
S103, caching the simplified metadata to a preset cache region in the storage node.
In the embodiment of the application, after the storage node obtains the simplified metadata, the simplified metadata is cached to the preset cache region in the storage node. The location of the preset cache region in the storage node and the memory size of the preset cache region are not specifically limited, and a person skilled in the art should make corresponding settings according to actual situations, and usually the preset cache region is located in the RAM in the storage node. Furthermore, the type of the RAM and the caching speed for caching the reduced metadata into the RAM are not specifically limited, and those skilled in the art should make corresponding settings according to actual situations.
Further, after caching the reduced metadata in a preset cache area in the storage node, the method generally further includes: when reading the target metadata, judging whether the target metadata exists in a preset cache region or not; if yes, reading target metadata from a preset cache region; and if not, reading the target metadata from the memory of the storage node. For a distributed file system, directory metadata needs to be read from massive files, if directory metadata or files needing to be read cannot be read in a preset cache region of a local storage node, metadata needs to be accessed in a cluster network every time when files are accessed based on the characteristics of the distributed file system, the execution process of IO read-write may also be that metadata is read across the network, and the time delay of file reading is increased by acquiring the metadata across the network every time when file reading operation is performed. As can be seen from the above, the metadata are simplified in the embodiment of the present application, and the total amount of the cached metadata can be increased under the condition that the total memory of the storage node is not changed, so that when the target metadata is read, in the embodiment of the present application, it is first determined whether the target metadata exists in the preset cache region, and if the target metadata exists in the preset cache region, the target metadata is directly read from the preset cache region, so as to increase the reading speed of the file. If the target metadata does not exist in the preset cache region, the target metadata is read from the memory of the storage node, and the service requirement can be met. The type of the memory and the capacity of the memory are not particularly limited, and those skilled in the art should make corresponding settings according to actual situations.
Further, after reading the target metadata from the memory of the storage node, the method generally further includes: simplifying the target metadata to obtain target simplified metadata; and caching the target simplified metadata to a preset cache region in the storage node. As can be seen from the above, the way of performing the reduction processing on the metadata in the embodiment of the present application is not specifically limited, so the way of performing the reduction processing on the target metadata is not specifically limited, for example, data preset by a user and required to be stored in a disk may be directly stripped from the target metadata, and service operation data in the target metadata may also be stripped. The speed of reading the target metadata in the memory is slower than that of directly reading the target metadata from the preset cache region, so that after the target metadata is read from the memory of the storage node, the target metadata is simplified to obtain target simplified metadata, and the target simplified metadata is cached to the preset cache region in the storage node, mainly aiming at directly reading the target metadata from the preset cache region when the target metadata is read again next time and accelerating the reading and writing speed.
The method includes the steps of receiving a request instruction for caching metadata, simplifying the metadata according to the request instruction to obtain simplified metadata, and caching the simplified metadata to a preset cache region in a storage node. Compared with the related technology, the method simplifies the metadata, can improve the total amount of the cached metadata under the condition that the total memory of the storage node is not changed, and further improves the reading speed of the file.
In the following, a metadata caching system, a device and a computer readable storage medium provided by the embodiments of the present application are introduced, and the metadata caching system, the device and the computer readable storage medium described below and the metadata caching method described above may be referred to correspondingly.
Referring to fig. 2, fig. 2 is a block diagram illustrating a metadata caching system according to an embodiment of the present disclosure; the metadata cache system includes:
a request instruction receiving module 201, configured to receive a request instruction for caching metadata;
the compaction processing module 202 is configured to perform compaction processing on the metadata according to the request instruction to obtain compacted metadata;
the metadata caching module 203 is configured to cache the reduced metadata to a preset cache region in the storage node.
Based on the foregoing embodiment, the metadata cache system in this embodiment generally further includes:
the judging module is used for judging whether the target metadata exists in the preset cache region or not when the target metadata is read;
the first reading module is used for reading the target metadata from the preset cache region if the target metadata exists in the preset cache region;
and the second reading module is used for reading the target metadata from the memory of the storage node if the target metadata does not exist in the preset cache region.
Based on the foregoing embodiment, the metadata cache system in this embodiment generally further includes:
the target simplified metadata acquisition module is used for carrying out simplified processing on the target metadata to obtain target simplified metadata;
and the target simplified metadata caching module is used for caching the target simplified metadata to a preset cache region in the storage node.
Based on the foregoing embodiment, the compaction processing module 202 in this embodiment generally includes:
and the simplified processing unit is used for eliminating the service operation data in the metadata according to the request instruction to obtain the simplified metadata.
Based on the foregoing embodiment, the metadata cache system in this embodiment generally further includes:
the quantity judging module is used for judging whether the quantity of the metadata reaches a preset threshold value or not;
the compaction processing module 202 is specifically a module that performs compaction processing on the metadata according to the request instruction to obtain compacted metadata when the amount of the metadata reaches a preset threshold.
The present application further provides an apparatus comprising: a memory and a processor; wherein the memory is used for storing a computer program, and the processor is used for implementing the steps of the metadata caching method of any of the above embodiments when executing the computer program.
The present application further provides a computer-readable storage medium, in which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the metadata caching method of any of the above embodiments.
The computer-readable storage medium may include: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the system provided by the embodiment, the description is relatively simple because the system corresponds to the method provided by the embodiment, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
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.
A metadata caching method, system, device and computer readable storage medium provided by the present application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
Claims (7)
1. A metadata caching method, comprising:
receiving a request instruction for caching metadata;
simplifying the metadata according to the request instruction to obtain simplified metadata;
caching the simplified metadata to a preset cache region in a storage node;
after caching the simplified metadata in a preset cache region in a storage node, the method further includes:
when reading target metadata, judging whether the target metadata exists in the preset cache region or not;
if yes, reading the target metadata from the preset cache region;
if not, reading the target metadata from the memory of the storage node;
after the target metadata is read from the memory of the storage node, the method further includes:
performing the simplification processing on the target metadata to obtain target simplified metadata;
caching the target simplified metadata to the preset cache region in the storage node.
2. The method according to claim 1, wherein the performing a compaction process on the metadata according to the request instruction to obtain compacted metadata includes:
and eliminating the service operation data in the metadata according to the request instruction to obtain the simplified metadata.
3. The metadata caching method according to claim 1, wherein after receiving the request instruction for caching the metadata, the method further comprises:
judging whether the quantity of the metadata reaches a preset threshold value or not;
and if so, executing the step of carrying out simplified processing on the metadata according to the request instruction to obtain simplified metadata.
4. A metadata caching system, comprising:
a request instruction receiving module, configured to receive a request instruction for caching metadata;
the simplification processing module is used for carrying out simplification processing on the metadata according to the request instruction to obtain simplified metadata;
the metadata caching module is used for caching the simplified metadata to a preset cache region in a storage node;
further comprising:
the judging module is used for judging whether the target metadata exists in the preset cache region or not when the target metadata is read;
a first reading module, configured to read the target metadata from the preset cache region if the target metadata exists in the preset cache region;
a second reading module, configured to read the target metadata from the memory of the storage node if the target metadata does not exist in the preset cache region;
further comprising:
the simplification module is used for carrying out simplification processing on the target metadata to obtain target simplified metadata;
and the cache module is used for caching the target simplified metadata to the preset cache region in the storage node.
5. The metadata caching system of claim 4, wherein the compaction processing module comprises:
and the simplified processing unit is used for eliminating the service operation data in the metadata according to the request instruction to obtain the simplified metadata.
6. A metadata caching apparatus, comprising:
a memory and a processor; wherein the memory is configured to store a computer program and the processor is configured to implement the steps of the metadata caching method according to any one of claims 1 to 3 when executing the computer program.
7. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which, when executed by a processor, implements the steps of the metadata caching method according to any one of claims 1 to 3.
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| CN110764708A (en) * | 2019-10-25 | 2020-02-07 | 北京浪潮数据技术有限公司 | Data reading method, device, equipment and storage medium |
| CN111143290A (en) * | 2019-12-27 | 2020-05-12 | 浪潮电子信息产业股份有限公司 | Memory management method, system, equipment and computer readable storage medium |
| CN111611179B (en) * | 2020-05-21 | 2023-09-12 | 深圳佰维存储科技股份有限公司 | Metadata hit rate improving method and device, storage medium and electronic equipment |
| CN113660530B (en) * | 2021-07-27 | 2024-03-19 | 中央广播电视总台 | Program stream data grabbing method and device, computer equipment and readable storage medium |
| CN115470008B (en) * | 2022-11-14 | 2023-03-10 | 杭州拓数派科技发展有限公司 | Metadata access method and device and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101706756A (en) * | 2009-12-10 | 2010-05-12 | 金蝶软件（中国）有限公司 | Method and device for caching metadata |
| CN104035887A (en) * | 2014-05-22 | 2014-09-10 | 中国科学院计算技术研究所 | Block device caching device and method based on simplification configuration system |
| CN105095495A (en) * | 2015-08-21 | 2015-11-25 | 浪潮(北京)电子信息产业有限公司 | Distributed file system cache management method and system |
| CN109002400A (en) * | 2018-06-01 | 2018-12-14 | 暨南大学 | A kind of perception of content type Computer Cache management system and method |
| CN109582649A (en) * | 2018-12-03 | 2019-04-05 | 郑州云海信息技术有限公司 | A kind of metadata storing method, device, equipment and readable storage medium storing program for executing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10073774B2 (en) * | 2016-04-29 | 2018-09-11 | Netapp, Inc. | Managing input/output operations for shingled magnetic recording in a storage system |
-
2018
- 2018-12-24 CN CN201811585056.2A patent/CN109471843B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101706756A (en) * | 2009-12-10 | 2010-05-12 | 金蝶软件（中国）有限公司 | Method and device for caching metadata |
| CN104035887A (en) * | 2014-05-22 | 2014-09-10 | 中国科学院计算技术研究所 | Block device caching device and method based on simplification configuration system |
| CN105095495A (en) * | 2015-08-21 | 2015-11-25 | 浪潮(北京)电子信息产业有限公司 | Distributed file system cache management method and system |
| CN109002400A (en) * | 2018-06-01 | 2018-12-14 | 暨南大学 | A kind of perception of content type Computer Cache management system and method |
| CN109582649A (en) * | 2018-12-03 | 2019-04-05 | 郑州云海信息技术有限公司 | A kind of metadata storing method, device, equipment and readable storage medium storing program for executing |
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