CN113806295B - File migration method, system, equipment and computer readable storage medium - Google Patents
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- 230000005012 migration Effects 0.000 title claims abstract description 60
- 238000013508 migration Methods 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 53
- 230000008569 process Effects 0.000 claims description 23
- 238000004590 computer program Methods 0.000 claims description 22
- 239000002699 waste material Substances 0.000 abstract description 6
- 230000001276 controlling effect Effects 0.000 description 22
- 238000004891 communication Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
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- 238000004220 aggregation Methods 0.000 description 2
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- 238000012545 processing Methods 0.000 description 1
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- G—PHYSICS
- 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
- G06F16/11—File system administration, e.g. details of archiving or snapshots
- G06F16/119—Details of migration of file systems
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- G—PHYSICS
- 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
- G06F16/11—File system administration, e.g. details of archiving or snapshots
- G06F16/128—Details of file system snapshots on the file-level, e.g. snapshot creation, administration, deletion
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- G—PHYSICS
- 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
- G06F16/18—File system types
- G06F16/182—Distributed file systems
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The application discloses a file migration method, a system, equipment and a computer readable storage medium, which are applied to a client in a distributed file storage system and used for determining a target file to be migrated to a slow storage pool in a high-speed storage pool; controlling a metadata server in the distributed file storage system to prohibit metadata of the snapshot target file; controlling an object storage cluster in a distributed file storage system prohibits snapshot of target files in a high-speed storage pool. In the method, after the target file to be migrated is determined, the client needs to control the metadata server in the distributed file storage system to prohibit the metadata of the snapshot target file, so that the invalid snapshot of the metadata of the target file can be prevented from occupying storage resources; the object storage clusters in the distributed file storage system are required to be controlled to prohibit the target files in the snapshot high-speed storage pool, so that the invalid snapshots of the target files can be prevented from occupying storage resources; the resource waste in the distributed file storage system can be reduced.
Description
Technical Field
The present invention relates to the field of distributed file storage technology, and more particularly, to a file migration method, system, device, and computer readable storage medium.
Background
Currently, in a distributed file storage system, snapshot and cache aggregation operations exist, wherein the snapshot is a read-only mirror image of all data at a certain moment, and the state before the data can be checked or restored according to the snapshot; and the cache aggregation is to create small files into an advanced storage pool, migrate the small files into a slow storage pool after meeting migration conditions, and through the function, the read-write performance of the files can be improved in the service cycle of the small files, and migrate the small files into the slow storage pool after the heat is reduced, so that resources in the advanced storage pool are released. However, in a distributed file storage system, there are situations of wasted resources when snapshots and cache aggregates work together.
In summary, how to reduce the resource waste in the distributed file storage system is a problem to be solved by those skilled in the art.
Disclosure of Invention
The purpose of the application is to provide a file migration method, which can solve the technical problem of how to reduce resource waste in a distributed file storage system to a certain extent. The application also provides a file migration system, a device and a computer readable storage medium.
In order to achieve the above object, the present application provides the following technical solutions:
a file migration method is applied to a client in a distributed file storage system, and comprises the following steps:
determining target files to be migrated to a slow storage pool in a high-speed storage pool;
controlling a metadata server in the distributed file storage system to prohibit snapshot of metadata of the target file;
controlling an object storage cluster in the distributed file storage system to prohibit snapshot of the target file in the high-speed storage pool.
Preferably, the controlling the metadata server in the distributed file storage system to prohibit snapshot of metadata of the target file includes:
and sending identification information representing file migration to the metadata server in the distributed file storage system, so that the metadata server skips the snapshot of the metadata of the target file after receiving the identification information.
Preferably, the controlling the object storage cluster in the distributed file storage system to prohibit snapshot of the target file in the high-speed storage pool includes:
and transferring the snapshot domain of the target file to be empty in the process of deleting the target file in the high-speed storage pool by calling the object storage cluster in the distributed file storage system, so that the object storage cluster skips the snapshot of the target file in the high-speed storage pool based on the snapshot domain which is transferred to be empty.
Preferably, after determining the target file in the high-speed storage pool to be migrated to the low-speed storage pool, before controlling the metadata server in the distributed file storage system to prohibit snapshot of the metadata of the target file, the method further includes:
and transferring the snapshot domain of the target file to be empty in the process of calling the object storage cluster to write the target file into the slow storage pool.
A file migration system for use with a client in a distributed file storage system, comprising:
the first determining module is used for determining target files to be migrated to the slow storage pool in the high-speed storage pool;
the first control module is used for controlling a metadata server in the distributed file storage system to prohibit snapshot of metadata of the target file;
and the second control module is used for controlling an object storage cluster in the distributed file storage system to prohibit snapshot of the target file in the high-speed storage pool.
Preferably, the first control module includes:
and the first sending unit is used for sending the identification information representing the file migration to the metadata server in the distributed file storage system so that the metadata server skips the snapshot of the metadata of the target file after receiving the identification information.
Preferably, the second control module includes:
and the second sending unit is used for transferring the snapshot domain of the target file to the air in the process of calling the object storage cluster in the distributed file storage system to delete the target file in the high-speed storage pool, so that the object storage cluster skips the snapshot of the target file in the high-speed storage pool based on the snapshot domain which is transferred to the air.
Preferably, the method further comprises:
and the third sending unit is used for calling the object storage cluster to empty the snapshot domain of the target file in the process of writing the target file into the slow storage pool before the metadata server in the distributed file storage system is controlled to inhibit snapshot of the metadata of the target file after the first determining module determines the target file to be migrated into the low storage pool in the high-speed storage pool.
A file migration apparatus comprising:
a memory for storing a computer program;
a processor for implementing the steps of any one of the file migration methods described above when executing the computer program.
A computer readable storage medium having a computer program stored therein, which when executed by a processor, implements the steps of any of the file migration methods described above.
The file migration method is applied to a client in a distributed file storage system and is used for determining target files to be migrated to a slow storage pool in a high-speed storage pool; controlling a metadata server in the distributed file storage system to prohibit metadata of the snapshot target file; controlling an object storage cluster in a distributed file storage system prohibits snapshot of target files in a high-speed storage pool. In the method, after determining the target file to be migrated, the client side considers that the target file cannot be changed in migration, so that a metadata server in the distributed file storage system needs to be controlled to prohibit metadata of the snapshot target file, and invalid snapshots of the metadata of the target file can be prevented from occupying storage resources; the object storage clusters in the distributed file storage system are required to be controlled to prohibit the target files in the snapshot high-speed storage pool, so that the invalid snapshots of the target files can be prevented from occupying storage resources; the resource waste in the distributed file storage system can be reduced. The file migration system, the file migration device and the computer readable storage medium also solve the corresponding technical problems.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings may be obtained according to the provided drawings without inventive effort to a person skilled in the art.
FIG. 1 is a flowchart of a file migration method according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a file migration system according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a file migration device according to an embodiment of the present application;
fig. 4 is another schematic structural diagram of a file migration device according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
Referring to fig. 1, fig. 1 is a flowchart of a file migration method according to an embodiment of the present application.
The file migration method provided by the embodiment of the application is applied to the client in the distributed file storage system, and can comprise the following steps:
step S101: a target file in the high-speed storage pool to be migrated to the slow storage pool is determined.
In practical application, the client may determine the target file to be migrated to the slow storage pool in the high-speed storage pool, where the type and content of the target file may be determined according to practical needs, and the determining manner of the target file may also be determined according to practical needs, for example, a file with the lowest access frequency in the high-speed storage pool may be used as the target file, which is not limited herein.
Step S102: metadata servers in the distributed file storage system are controlled to prohibit metadata of the snapshot target file.
Step S103: controlling an object storage cluster in a distributed file storage system prohibits snapshot of target files in a high-speed storage pool.
In practical application, considering that the migration of the file does not change the file itself, and the triggering condition of the snapshot ensures the file migration, but when the migrated file is snapshot at this time, no change of data is brought, that is, the snapshot at this time is an invalid snapshot, so if the migrated file is snapshot, the data after snapshot additionally occupy the resources of the distributed file storage system, so that resource waste is caused, and in order to avoid such a situation, the client needs to control the metadata server (Metadata server cluster, MDS) in the distributed file storage system to prohibit the metadata of the snapshot target file, so as to avoid that the invalid snapshot of the metadata of the target file occupies the storage resources; an object storage cluster (Object storage cluster, OSD) in the distributed file storage system is controlled to prohibit a snapshot of a target file in a high-speed storage pool to avoid an invalid snapshot of the target file occupying storage resources.
The file migration method is applied to a client in a distributed file storage system and is used for determining target files to be migrated to a slow storage pool in a high-speed storage pool; controlling a metadata server in the distributed file storage system to prohibit metadata of the snapshot target file; controlling an object storage cluster in a distributed file storage system prohibits snapshot of target files in a high-speed storage pool. In the method, after determining the target file to be migrated, the client side considers that the target file cannot be changed in migration, so that a metadata server in the distributed file storage system needs to be controlled to prohibit metadata of the snapshot target file, and invalid snapshots of the metadata of the target file can be prevented from occupying storage resources; the object storage clusters in the distributed file storage system are required to be controlled to prohibit the target files in the snapshot high-speed storage pool, so that the invalid snapshots of the target files can be prevented from occupying storage resources; the resource waste in the distributed file storage system can be reduced.
The file migration method provided by the embodiment of the invention is applied to the client in the distributed file storage system, and in the process of controlling the metadata server in the distributed file storage system to prohibit the metadata of the snapshot target file, the identification information representing file migration can be sent to the metadata server in the distributed file storage system, so that the metadata server skips the snapshot of the metadata of the target file after receiving the identification information. Of course, there may be other methods for controlling the metadata server in the distributed file storage system to prohibit the metadata of the snapshot target file, for example, directly sending the information of prohibiting the metadata of the snapshot target file to the metadata server, which is not specifically limited herein.
It should be noted that, in the migration process of the file, after the client determines the target file to be migrated, the target file needs to be written into the slow storage pool by means of the object storage cluster; and sending a setattr message to the metadata server to inform the metadata server to modify metadata information of the target file; and finally deleting the target file in the high-speed storage pool by means of the object storage cluster. The identification information may be added to a setattr message in the course of sending the identification information characterizing the migration of the file to the metadata server in the distributed file storage system, the setattr message being media to send the identification information to the metadata server.
The file migration method provided by the embodiment of the invention is applied to a client in a distributed file storage system, and in the process of controlling an object storage cluster in the distributed file storage system to prohibit a target file in a high-speed storage pool, taking into account that a snapshot domain of the file, namely an ID of the snapshot file, is generated in the snapshot process, and snapshot operation is triggered only when the value of a new snapshot domain of the file is larger than that of an old snapshot domain, so that the value of the snapshot domain can be flexibly set to avoid snapshot operation, namely the snapshot domain of the target file can be emptied in the process of calling the object storage cluster in the distributed file storage system to delete the target file in the high-speed storage pool, and therefore, the object storage cluster can skip the snapshot of the target file in the high-speed storage pool based on the empty snapshot domain.
In a specific application scenario, after determining that the target file in the high-speed storage pool is to be migrated to the low-speed storage pool, before controlling the metadata server in the distributed file storage system to prohibit the metadata of the snapshot target file, the snapshot domain of the target file can be emptied in the process of calling the object storage cluster to write the target file into the low-speed storage pool, so that when the subsequent target file changes, the snapshot of the target file can be directly performed based on the new snapshot domain, and the accuracy of the snapshot is ensured.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a file migration system according to an embodiment of the present application.
The file migration system provided in the embodiment of the present application is applied to a client in a distributed file storage system, and may include:
a first determining module 101, configured to determine a target file in a high-speed storage pool to be migrated to a low-speed storage pool;
a first control module 102, configured to control a metadata server in the distributed file storage system to prohibit metadata of the snapshot target file;
a second control module 103, configured to control the object storage cluster in the distributed file storage system to prohibit the snapshot of the target file in the high-speed storage pool.
The file migration system provided in the embodiment of the present application is applied to a client in a distributed file storage system, and the first control module includes:
and the first sending unit is used for sending the identification information representing the file migration to the metadata server in the distributed file storage system so that the metadata server skips the snapshot of the metadata of the target file after receiving the identification information.
The file migration system provided in the embodiment of the present application is applied to a client in a distributed file storage system, and the second control module includes:
and the second sending unit is used for transferring the snapshot domain of the target file to be empty in the process of calling the object storage cluster in the distributed file storage system to delete the target file in the high-speed storage pool, so that the object storage cluster skips the snapshot of the target file in the high-speed storage pool based on the snapshot domain transferred to be empty.
The file migration system provided by the embodiment of the application is applied to a client in a distributed file storage system, and further comprises:
and the third sending unit is used for transferring the snapshot domain of the target file to the idle state in the process of calling the object storage cluster to write the target file into the slow storage pool before the first control module controls the metadata server in the distributed file storage system to prohibit the metadata of the snapshot target file after the first determination module determines the target file to be migrated into the low storage pool in the high-speed storage pool.
The application also provides file migration equipment and a computer readable storage medium, which have the corresponding effects of the file migration method. Referring to fig. 3, fig. 3 is a schematic structural diagram of a file migration apparatus according to an embodiment of the present application.
The file migration device provided in the embodiment of the present application includes a memory 201 and a processor 202, where the memory 201 stores a computer program, and the processor 202 implements the following steps when executing the computer program:
determining target files to be migrated to a slow storage pool in a high-speed storage pool;
controlling a metadata server in the distributed file storage system to prohibit metadata of the snapshot target file;
controlling an object storage cluster in a distributed file storage system prohibits snapshot of target files in a high-speed storage pool.
The file migration device provided in the embodiment of the present application includes a memory 201 and a processor 202, where the memory 201 stores a computer program, and the processor 202 implements the following steps when executing the computer program: and sending the identification information representing the file migration to a metadata server in the distributed file storage system, so that the metadata server skips the snapshot of the metadata of the target file after receiving the identification information.
The file migration device provided in the embodiment of the present application includes a memory 201 and a processor 202, where the memory 201 stores a computer program, and the processor 202 implements the following steps when executing the computer program: and in the process of calling the object storage cluster in the distributed file storage system to delete the target file in the high-speed storage pool, the snapshot domain of the target file is emptied, so that the object storage cluster skips the snapshot of the target file in the high-speed storage pool based on the emptied snapshot domain.
The file migration device provided in the embodiment of the present application includes a memory 201 and a processor 202, where the memory 201 stores a computer program, and the processor 202 implements the following steps when executing the computer program: after determining the target file to be migrated to the low-speed storage pool in the high-speed storage pool, before controlling a metadata server in the distributed file storage system to prohibit the metadata of the target file, transferring the snapshot domain of the target file to the idle state in the process of calling the object storage cluster to write the target file to the low-speed storage pool.
Referring to fig. 4, another file migration apparatus provided in the embodiment of the present application may further include: an input port 203 connected to the processor 202 for transmitting an externally input command to the processor 202; a display unit 204 connected to the processor 202, for displaying the processing result of the processor 202 to the outside; and the communication module 205 is connected with the processor 202 and is used for realizing the communication between the file migration device and the outside. The display unit 204 may be a display panel, a laser scanning display, or the like; communication means employed by the communication module 205 include, but are not limited to, mobile high definition link technology (HML), universal Serial Bus (USB), high Definition Multimedia Interface (HDMI), wireless connection: wireless fidelity (WiFi), bluetooth communication, bluetooth low energy communication, ieee802.11s based communication.
The embodiment of the application provides a computer readable storage medium, in which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:
determining target files to be migrated to a slow storage pool in a high-speed storage pool;
controlling a metadata server in the distributed file storage system to prohibit metadata of the snapshot target file;
controlling an object storage cluster in a distributed file storage system prohibits snapshot of target files in a high-speed storage pool.
The embodiment of the application provides a computer readable storage medium, in which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented: and sending the identification information representing the file migration to a metadata server in the distributed file storage system, so that the metadata server skips the snapshot of the metadata of the target file after receiving the identification information.
The embodiment of the application provides a computer readable storage medium, in which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented: and in the process of calling the object storage cluster in the distributed file storage system to delete the target file in the high-speed storage pool, the snapshot domain of the target file is emptied, so that the object storage cluster skips the snapshot of the target file in the high-speed storage pool based on the emptied snapshot domain.
The embodiment of the application provides a computer readable storage medium, in which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented: after determining the target file to be migrated to the low-speed storage pool in the high-speed storage pool, before controlling a metadata server in the distributed file storage system to prohibit the metadata of the target file, transferring the snapshot domain of the target file to the idle state in the process of calling the object storage cluster to write the target file to the low-speed storage pool.
The computer readable storage medium referred to in this application includes 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.
The description of the related parts in the file migration system, the device and the computer readable storage medium provided in the embodiments of the present application refers to the detailed description of the corresponding parts in the file migration method provided in the embodiments of the present application, and will not be repeated here. In addition, the parts of the above technical solutions provided in the embodiments of the present application, which are consistent with the implementation principles of the corresponding technical solutions in the prior art, are not described in detail, so that redundant descriptions are avoided.
It is further noted that relational terms such as first and second, and the like are 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. Moreover, 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 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A method for file migration, applied to a client in a distributed file storage system, comprising:
determining target files to be migrated to a slow storage pool in a high-speed storage pool;
controlling a metadata server in the distributed file storage system to prohibit snapshot of metadata of the target file;
controlling an object storage cluster in the distributed file storage system to prohibit snapshot of the target file in the high-speed storage pool;
wherein the controlling the metadata server in the distributed file storage system to prohibit snapshot of metadata of the target file includes:
sending identification information representing file migration to the metadata server in the distributed file storage system, so that the metadata server skips snapshot of metadata of the target file after receiving the identification information;
wherein said controlling an object storage cluster in the distributed file storage system to prohibit snapshot of the target file in the high-speed storage pool comprises:
and transferring the snapshot domain of the target file to be empty in the process of deleting the target file in the high-speed storage pool by calling the object storage cluster in the distributed file storage system, so that the object storage cluster skips the snapshot of the target file in the high-speed storage pool based on the snapshot domain which is transferred to be empty.
2. The method of claim 1, wherein after determining the target file in the high-speed storage pool to be migrated to the low-speed storage pool, before controlling the metadata server in the distributed file storage system to prohibit snapshot of metadata of the target file, further comprising:
and transferring the snapshot domain of the target file to be empty in the process of calling the object storage cluster to write the target file into the slow storage pool.
3. A file migration system for use with a client in a distributed file storage system, comprising:
the first determining module is used for determining target files to be migrated to the slow storage pool in the high-speed storage pool;
the first control module is used for controlling a metadata server in the distributed file storage system to prohibit snapshot of metadata of the target file;
a second control module, configured to control an object storage cluster in the distributed file storage system to prohibit snapshot of the target file in the high-speed storage pool;
wherein the first control module comprises:
a first sending unit, configured to send identification information characterizing file migration to the metadata server in the distributed file storage system, so that the metadata server skips a snapshot of metadata of the target file after receiving the identification information;
wherein the second control module comprises:
and the second sending unit is used for transferring the snapshot domain of the target file to the air in the process of calling the object storage cluster in the distributed file storage system to delete the target file in the high-speed storage pool, so that the object storage cluster skips the snapshot of the target file in the high-speed storage pool based on the snapshot domain which is transferred to the air.
4. The file migration system of claim 3, further comprising:
and the third sending unit is used for calling the object storage cluster to empty the snapshot domain of the target file in the process of writing the target file into the slow storage pool before the metadata server in the distributed file storage system is controlled to inhibit snapshot of the metadata of the target file after the first determining module determines the target file to be migrated into the low storage pool in the high-speed storage pool.
5. A file migration apparatus, characterized by comprising:
a memory for storing a computer program;
a processor for implementing the steps of the file migration method according to any one of claims 1 to 2 when executing said computer program.
6. A computer readable storage medium, wherein a computer program is stored in the computer readable storage medium, which when executed by a processor, implements the steps of the file migration method according to any one of claims 1 to 2.
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| CN113806295A (en) | 2021-12-17 |
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