CN107704633A - A kind of method and system of file migration - Google Patents
A kind of method and system of file migration Download PDFInfo
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- CN107704633A CN107704633A CN201711058165.4A CN201711058165A CN107704633A CN 107704633 A CN107704633 A CN 107704633A CN 201711058165 A CN201711058165 A CN 201711058165A CN 107704633 A CN107704633 A CN 107704633A
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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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Abstract
A kind of method of file migration provided herein, including：When matching the migration strategy of file destination, by listed files rule；The listed files is scanned to determine file destination list corresponding to the migration strategy；The file destination list is read, obtains the metadata numbering of the file destination；Numbered according to the metadata and search file destination；The file destination is migrated according to the migration strategy.The file for needing to migrate in file system is correspondingly generated listed files by logical pot, All Files need not be traveled through in migration, directly travel through listed files and corresponding file is migrated by the file related data in listed files again, greatly promote again the efficiency of striping, and the performance and response speed of file system.Present invention also provides a kind of system of file migration, has above-mentioned beneficial effect.
Description
Technical field
The application is related to file field of storage, more particularly to a kind of method and system of file migration.
Background technology
File is stored in the storage device of different performance by automatic classification storage according to file attribute, and realizes that file exists
Autonomic Migration Framework between storage device.Meet diverse requirements of the user to document processing speeds, memory capacity and cost, with up to
To the purpose for rationally utilizing memory space, lifting storage system access performance, reducing general plan cost.
In hierarchy system, system jacks up scanning metadata, judges to be stored in storage system according to File Pool strategy
Whether interior file needs striping again, and striping task again is then issued if necessary to striping.Again striping refers to
It is the Data Migration that will store into other classifications.Before hierarchy system carries out striping task, it must be understood that Ge Gefen
Which file all be present in level, and need to know the various information of these files, including creation time, modification time, IO frequencies
Rate, user, user's group, filename etc..It is by the file metadata to whole file system in conventional hierarchy system
Traveled through to obtain, this way does not need the support of additional means, simple and convenient.But in over ten billion number of files easily
In the modern file system of amount, the traversal of magnanimity metadata can be caused under whole file system performance, or even have influence on industry
Business accesses.
Apply for content
The purpose of the application is to provide a kind of method and system of file migration, solve existing file again striping when
The problem of efficiency is low.
In order to solve the above technical problems, the application provides a kind of method of file migration, concrete technical scheme is as follows：
When matching the migration strategy of file destination, by listed files rule；
The listed files is scanned to determine file destination list corresponding to the migration strategy；
The file destination list is read, obtains the metadata numbering of the file destination；
Numbered according to the metadata and search file destination；
The file destination is migrated according to the migration strategy.
Wherein, methods described also includes：
The listed files is generated according to migration strategy, all listed files of each hierarchy system are stored in accordingly
KV databases in.
Wherein, it is described to include listed files rule：
By the listed files in MDSRankDispatcher::Objecter is utilized in tick ()::Mutate functions enter
Row rule.
Wherein, it is described also to include：
Utilize MDLog::The operation of trim functions polymerization same file list is into ObjectOperation classes with reduction
The number of rule.
Wherein, numbering lookup file destination according to the metadata includes：
Numbered according to the metadata and search metadata information node；
The file destination is determined from the metadata information node.
The application also provides a kind of system of file migration, including：
Rule module, for when matching the migration strategy of file destination, by listed files rule；
Scan module, for scanning the listed files to determine file destination list corresponding to the migration strategy；
Read module, for reading the file destination list, obtain the metadata numbering of the file destination；
Searching modul, file destination is searched for being numbered according to the metadata；
Transferring module, for migrating the file destination according to the migration strategy.
Wherein, the system also includes：
Memory module, for generating the listed files according to migration strategy, by all files of each hierarchy system
List is stored in corresponding KV databases.
Wherein, the rule module is for when matching the migration strategy of file destination, the listed files to be existed
MDSRankDispatcher::Objecter is utilized in tick ()::Mutate functions carry out the module of rule.
Wherein, the system also includes：
Aggregation module, for utilizing MDLog::The operation of trim functions polymerization same file list is arrived
To reduce the number of rule in ObjectOperation classes.
Wherein, included according to searching modul：
Searching unit, metadata information node is searched for being numbered according to the metadata；
Determining unit, for determining the file destination from the metadata information node.
A kind of method of file migration provided herein, including：, will when matching the migration strategy of file destination
Listed files rule；The listed files is scanned to determine file destination list corresponding to the migration strategy；Read the mesh
Listed files is marked, obtains the metadata numbering of the file destination；Numbered according to the metadata and search file destination；According to institute
State migration strategy and migrate the file destination.The file for needing to migrate in file system is correspondingly generated listed files by logical pot,
All Files need not be traveled through during migration, listed files is directly traveled through and is migrated accordingly by the file related data in listed files again
File, greatly promote again the efficiency of striping, and the performance and response speed of file system.The application also provides
A kind of system of file migration, has above-mentioned beneficial effect, here is omitted.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of application, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
A kind of method flow diagram for file migration that Fig. 1 is provided by the embodiment of the present application；
The method flow diagram for another file migration that Fig. 2 is provided by the embodiment of the present application；
A kind of system structure diagram for file migration that Fig. 3 is provided by the embodiment of the present application.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In accompanying drawing, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, rather than whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belong to the scope of the application protection.
It refer to Fig. 1, a kind of method flow diagram for file migration that Fig. 1 is provided by the embodiment of the present application, particular technique
Scheme is as follows：
S101：When matching the migration strategy of file destination, by listed files rule；
When timing scan file metadata matches certain migration strategy, the path of file and ino can be stored to corresponding
In the listed files of strategy.Listed files is formed with database to be present, the corresponding listed files of every strategy, and is stored in plan
In slightly specified storage pool.Particular content in listed files is not construed as limiting at this, it should be included needed for file migration
The related data wanted, such as metadata numbering of file etc..Listed files can be easy to index to scan into compressed structure.It is flat
Change structure to refer to being similar to<Ino,file_info><Ino,file_info>... the simple structure such as.
It is noted that in establishment file, the path of file and ino can also be stored to corresponding migration strategy
In listed files.Imply that and refer to need again the file of striping in whole document storage system for file corresponding to its foundation
List.Preferably, the All Files list of each hierarchy system can be stored in corresponding KV databases.KV databases are to use key
It is worth (Key-Value) data storage storehouse, this is a kind of NoSQL (non-relational database) model, and its data is according to key-value pair
Form carries out tissue, index and storage.KV storages are especially suitable for the business datum for not being related to excessive data relationship business relations, together
When can effectively reduce the number of read-write disk, possess more preferable readwrite performance than conventional SQL (relationship type) database purchase.
Therefore, listed files is typically to be generated according to migration strategy, or perhaps progress in need striping again
File can correspondingly generate listed files.
In addition to generating listed files, there can also be other related operations, such as submit, change or reload day
Will record, the polymerization of listed files rule, listed files, listed files renewal etc..Listed files rule refers to that data are real
Store the process of disk or other storage organizations.The purpose of listed files polymerization is to reduce the number of rule, by multiple data
Modification be polymerized to a rule process and preserved.Do not limit the method for the specific implementation of these operations herein and implemented
Journey, such as listed files journal events class can be utilized to submit log recording, MDLog is utilized when abnormal::Reply functions are complete
Into playback；In MDSRankDispatcher::Listed files rule, MDLog are completed in tick () (a kind of file structure)::
Trim functions can polymerize the operation of same file list into an ObjectOperation class, finally utilize Objecter::
Mutate functions realize that rule etc. is submitted in listed files operation.
S102：The listed files is scanned to determine file destination list corresponding to the migration strategy；
According to migration strategy, scanning file list is to determine file destination list corresponding to the migration strategy.
It should be noted that listed files exists in the form of database.Because often there is meta data server to submit number
Update and operate according to storehouse, and the operation of these database updates can store in present daily record, in order to ensure that migration strategy can correspond to most
New listed files, before the scan, it is necessary to the listed files in database is first subjected to rule.
S103：The file destination list is read, obtains the metadata numbering of the file destination；
Metadata is the data for describing data, can be used for supporting such as instruction storage location, historical data, resource to look into
Look for, the function such as file record.And the metadata numbering of file destination is contained in file destination list naturally, member described here
Data number, imply that and refer to that according to the metadata numbering metadata relevant information of file destination can be obtained, including with file
Relevant information is migrated, the file destination information unrelated with file migration can also be contained.
S104：Numbered according to the metadata and search file destination；
After metadata numbering is got, numbered according to the metadata and search file destination.At this to how according to first number
Determine that file destination is not construed as limiting according to numbering, it is preferred that it can first be numbered according to metadata and search metadata information node, it is so-called
Metadata information node is the storage organization for Preservation Metadata；Again file destination is determined from the metadata information node.
S105：The file destination is migrated according to the migration strategy.
After determining file destination, the file destination can be migrated according to migration strategy.In the process, can also first match
Migration strategy and file destination, play a part of detecting the migration strategy.Certainly, after file destination migration, will can also move
Move strategy to be correspondingly processed, for example equally make migration process etc..
In the above-mentioned methods, corresponding file or data are not found in the event of a certain step, it is also an option that weight
Carry out the above method again, can also think file destination be not present with this document storage system, specific subsequent operation should
Corresponding processing is done according to actual conditions by those skilled in the art, the application is not especially limited, and provided herein
Method on do not pay the technical scheme of creative work, all should be in the protection domain of the application.
The embodiment of the present application provides a kind of method of file migration, and can be realized by the above method need not in migration
All Files is traveled through, directly travel through listed files is again by the corresponding file of file related data migration in listed files
Can, greatly promote again the efficiency of striping, and the performance and response speed of file system.
Referring to Fig. 2, the method flow diagram for another file migration that Fig. 2 Fig. 2 is provided by the embodiment of the present application, specifically
It is bright as follows：
Mds0, mds1 and mds2 are respectively meta data server 0, meta data server 1 and meta data server 2 in figure；
Ino numbers for metadata mentioned above；Cinode refers to the structure of Preservation Metadata information；Lookupino refers to leading to
Cross the process that ino searches file destination metadata information.
Prepare scanning file list.When striping again, start scanning file list.It is needing to illustrate but, in figure
The unfixed precedence relationship of three meta data servers, only represents its quantitative relation here, and scanning file list operation can be with
Since any one meta data server, generally carried out certainly by the order of setting.
Each meta data server is by the listed files rule in daily record and scans.
Read listed files and obtain ino, and metadata is searched according to the ino.
When finding Cinode according to ino, matching strategy migrates.Natural energy is found after Cinode according to getting member
Data, matched one by one with migration strategy further according to the attribute of metadata, the data pool formulated according to migration strategy that the match is successful
Migrated.It should be noted that being that first migration strategy is migrated here, then corresponding file data is migrated,
Therebetween there is the sequencing on certain time, but generally carry out the migration of file data immediately after migration strategy migration.
It is to find (successively to seek mds0, mds1 in diagram all in certain sequence in mds0, mds1 and mds2 in addition, when finding Cinode
And mds2), if not seeking corresponding Cinode, it is meant that file data is not already present in storage system.
The system of a kind of file migration provided below the embodiment of the present application is introduced, systems described below with it is upper
The method of the file migration of text description can be mutually to should refer to.
Referring to Fig. 3, a kind of system structure diagram for file migration that Fig. 3 is provided by the embodiment of the present application, the system
It can include：
Rule module 100, for when matching the migration strategy of file destination, by listed files rule；
Scan module 200, for scanning the listed files to determine file destination list corresponding to the migration strategy；
Read module 300, for reading the file destination list, obtain the metadata numbering of the file destination；
Searching modul 400, file destination is searched for being numbered according to the metadata；
Transferring module 500, for migrating the file destination according to the migration strategy.
Based on above-described embodiment, as preferred embodiment, the system can also include：
Memory module, for generating the listed files according to migration strategy, by all files of each hierarchy system
List is stored in corresponding KV databases.
Wherein, the rule module is for when matching the migration strategy of file destination, the listed files to be existed
MDSRankDispatcher::Objecter is utilized in tick ()::Mutate functions carry out the module of rule.
Based on above-described embodiment, as preferred embodiment, the system can also include：
Aggregation module, for utilizing MDLog::The operation of trim functions polymerization same file list is arrived
To reduce the number of rule in ObjectOperation classes.
Based on above-described embodiment, as preferred embodiment, the searching modul 400 can include：
Searching unit, metadata information node is searched for being numbered according to the metadata；
Determining unit, for determining the file destination from the metadata information node.
Each embodiment is described by the way of progressive in specification, and what each embodiment stressed is and other realities
Apply the difference of example, between each embodiment identical similar portion mutually referring to.For embodiment provide system and
Speech, because it is corresponding with the method that embodiment provides, so description is fairly simple, related part is referring to method part illustration
.
A kind of method and system of file migration provided herein is described in detail above.It is used herein
Specific case is set forth to the principle and embodiment of the application, and the explanation of above example is only intended to help and understands
The present processes and its core concept.It should be pointed out that for those skilled in the art, this is not being departed from
On the premise of applying for principle, some improvement and modification can also be carried out to the application, these are improved and modification also falls into the application
In scope of the claims.
It should also be noted that, in this manual, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between any this actual relation or order be present.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or equipment including a series of elements not only include that
A little key elements, but also the other element including being not expressly set out, or also include for this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged
Except other identical element in the process including the key element, method, article or equipment being also present.
Claims (10)
- A kind of 1. method of file migration, it is characterised in that including：When matching the migration strategy of file destination, by listed files rule；The listed files is scanned to determine file destination list corresponding to the migration strategy；The file destination list is read, obtains the metadata numbering of the file destination；Numbered according to the metadata and search file destination；The file destination is migrated according to the migration strategy.
- 2. according to the method for claim 1, it is characterised in that also include：The listed files is generated according to migration strategy, all listed files of each hierarchy system are stored in corresponding KV In database.
- 3. according to the method for claim 2, it is characterised in that described to include listed files rule：By the listed files in MDSRankDispatcher::Objecter is utilized in tick ()::Mutate functions are fallen Disk.
- 4. according to the method for claim 3, it is characterised in that also include：Utilize MDLog::The operation of trim functions polymerization same file list is into ObjectOperation classes to reduce rule Number.
- 5. according to the method described in claim any one of 1-4, it is characterised in that numbered according to the metadata and search target text Part includes：Numbered according to the metadata and search metadata information node；The file destination is determined from the metadata information node.
- A kind of 6. system of file migration, it is characterised in that including：Rule module, for when matching the migration strategy of file destination, by listed files rule；Scan module, for scanning the listed files to determine file destination list corresponding to the migration strategy；Read module, for reading the file destination list, obtain the metadata numbering of the file destination；Searching modul, file destination is searched for being numbered according to the metadata；Transferring module, for migrating the file destination according to the migration strategy.
- 7. system according to claim 6, it is characterised in that also include：Memory module, for generating the listed files according to migration strategy, by all listed files of each hierarchy system It is stored in corresponding KV databases.
- 8. system according to claim 7, it is characterised in that the rule module is to match file destination for working as During migration strategy, by the listed files in MDSRankDispatcher::Objecter is utilized in tick ()::Mutate letters Number carries out the module of rule.
- 9. system according to claim 8, it is characterised in that also include：Aggregation module, for utilizing MDLog::The operation of trim functions polymerization same file list is to ObjectOperation classes In to reduce the number of rule.
- 10. according to the system described in claim any one of 6-9, it is characterised in that the searching modul includes：Searching unit, metadata information node is searched for being numbered according to the metadata；Determining unit, for determining the file destination from the metadata information node.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711058165.4A CN107704633A (en) | 2017-11-01 | 2017-11-01 | A kind of method and system of file migration |
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| CN201711058165.4A CN107704633A (en) | 2017-11-01 | 2017-11-01 | A kind of method and system of file migration |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110515916A (en) * | 2019-07-26 | 2019-11-29 | 济南浪潮数据技术有限公司 | Master-slave distributed file processing method, master node, slave node and system |
| CN111125018A (en) * | 2019-12-15 | 2020-05-08 | 浪潮电子信息产业股份有限公司 | File exception tracing method, device, equipment and storage medium |
| CN112631991A (en) * | 2020-12-26 | 2021-04-09 | 中国农业银行股份有限公司 | File migration method and device |
| CN113297132A (en) * | 2020-02-21 | 2021-08-24 | 阿里巴巴集团控股有限公司 | Generation method and device of migration file list, electronic equipment and computer readable medium |
| WO2022111699A1 (en) * | 2020-11-30 | 2022-06-02 | 华为技术有限公司 | Data transmission method, electronic device, and computer readable storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102291450A (en) * | 2011-08-08 | 2011-12-21 | 浪潮电子信息产业股份有限公司 | Data online hierarchical storage method in cluster storage system |
| CN102667772A (en) * | 2010-03-01 | 2012-09-12 | 株式会社日立制作所 | File level hierarchical storage management system, method, and apparatus |
| CN102882928A (en) * | 2012-08-31 | 2013-01-16 | 浪潮电子信息产业股份有限公司 | Hierarchical storage management method of cloud storing system |
| CN103106047A (en) * | 2013-01-29 | 2013-05-15 | 浪潮(北京)电子信息产业有限公司 | Storage system based on object and storage method thereof |
| CN104239493A (en) * | 2014-09-09 | 2014-12-24 | 北京京东尚科信息技术有限公司 | Cross-cluster data migration method and system |
| US20160350292A1 (en) * | 2015-05-27 | 2016-12-01 | Alibaba Group Holding Limited | Method and apparatus for real-time data migration |
| CN106909595A (en) * | 2016-06-20 | 2017-06-30 | 阿里巴巴集团控股有限公司 | A kind of data migration method and device |
-
2017
- 2017-11-01 CN CN201711058165.4A patent/CN107704633A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102667772A (en) * | 2010-03-01 | 2012-09-12 | 株式会社日立制作所 | File level hierarchical storage management system, method, and apparatus |
| CN102291450A (en) * | 2011-08-08 | 2011-12-21 | 浪潮电子信息产业股份有限公司 | Data online hierarchical storage method in cluster storage system |
| CN102882928A (en) * | 2012-08-31 | 2013-01-16 | 浪潮电子信息产业股份有限公司 | Hierarchical storage management method of cloud storing system |
| CN103106047A (en) * | 2013-01-29 | 2013-05-15 | 浪潮(北京)电子信息产业有限公司 | Storage system based on object and storage method thereof |
| CN104239493A (en) * | 2014-09-09 | 2014-12-24 | 北京京东尚科信息技术有限公司 | Cross-cluster data migration method and system |
| US20160350292A1 (en) * | 2015-05-27 | 2016-12-01 | Alibaba Group Holding Limited | Method and apparatus for real-time data migration |
| CN106909595A (en) * | 2016-06-20 | 2017-06-30 | 阿里巴巴集团控股有限公司 | A kind of data migration method and device |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110515916A (en) * | 2019-07-26 | 2019-11-29 | 济南浪潮数据技术有限公司 | Master-slave distributed file processing method, master node, slave node and system |
| CN110515916B (en) * | 2019-07-26 | 2022-12-23 | 济南浪潮数据技术有限公司 | Master-slave distributed file processing method, master node, slave node and system |
| CN111125018A (en) * | 2019-12-15 | 2020-05-08 | 浪潮电子信息产业股份有限公司 | File exception tracing method, device, equipment and storage medium |
| CN111125018B (en) * | 2019-12-15 | 2022-04-22 | 浪潮电子信息产业股份有限公司 | File exception tracing method, device, equipment and storage medium |
| CN113297132A (en) * | 2020-02-21 | 2021-08-24 | 阿里巴巴集团控股有限公司 | Generation method and device of migration file list, electronic equipment and computer readable medium |
| CN113297132B (en) * | 2020-02-21 | 2024-05-03 | 阿里巴巴集团控股有限公司 | Migration file list generation method and device, electronic equipment and computer readable medium |
| WO2022111699A1 (en) * | 2020-11-30 | 2022-06-02 | 华为技术有限公司 | Data transmission method, electronic device, and computer readable storage medium |
| US20240095210A1 (en) * | 2020-11-30 | 2024-03-21 | Huawei Technologies Co., Ltd. | Data Transmission Method, Electronic Device, and Computer-Readable Storage Medium |
| US12056087B2 (en) * | 2020-11-30 | 2024-08-06 | Huawei Technologies Co., Ltd. | Data transmission method, electronic device, and computer-readable storage medium |
| CN112631991A (en) * | 2020-12-26 | 2021-04-09 | 中国农业银行股份有限公司 | File migration method and device |
| CN112631991B (en) * | 2020-12-26 | 2024-07-05 | 中国农业银行股份有限公司 | File migration method and device |
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