CN108089825A - A kind of storage system based on distributed type assemblies - Google Patents
A kind of storage system based on distributed type assemblies Download PDFInfo
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- CN108089825A CN108089825A CN201810026676.6A CN201810026676A CN108089825A CN 108089825 A CN108089825 A CN 108089825A CN 201810026676 A CN201810026676 A CN 201810026676A CN 108089825 A CN108089825 A CN 108089825A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/0614—Improving the reliability of storage systems
- G06F3/0617—Improving the reliability of storage systems in relation to availability
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/0608—Saving storage space on storage systems
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0638—Organizing or formatting or addressing of data
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/067—Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
Abstract
The present invention provides a kind of storage system based on distributed type assemblies, and file size judgment module is used to judge the size of client write-in file, and when the file size is less than the first preset value, storage processing module stores the file to cache module；File size judgment module is additionally operable to judge the size that client reads file, when the file size is less than the first preset value, the judging result of file size judgment module is fed back to client by storage processing module, and client reads the file by cache module；Cache size judgment module is used to judge the size for the aggregate file being stored in cache module by storage processing module, and when the size of the aggregate file reaches the second preset value, the aggregate file write-in in cache module is polymerize memory module by buffer process module.It is of the invention effectively to reduce small documents write-in disk number, it improves and reads hit rate.
Description
Technical field
The present invention relates to computer realm more particularly to a kind of storage systems based on distributed type assemblies.
Background technology
With the development of the times, substantial amounts of data file generates, and computer is single by file system management, storage data
It is pure by way of increasing memory capacity of the hard disk number to extend computer file system, amount of capacity, capacity increase speed
The performance of degree, data backup, data safety etc. is all barely satisfactory.Distributed file system can effectively solve depositing for data
Storage and management problems, will be fixed on some file system in some place, expand to any number of places or multiple file system,
Numerous nodes forms a Filesystem Network.Each node can be distributed in different places, and node is carried out by network
Between communication and data transmission, establish huge group system.People are when using distributed file system, without being concerned about data
It is stored on which node or is from which node from acquisition, it is only necessary to be managed as using local file system
With the data in storage file system.
With the popularization of distributed memory system, application range increasingly extensively, when storage system applications shopping website,
When under scenes, scene characteristic is that small documents are large number of for broadcasting and TV, Internet video, and space hold is generally in below 1M, operation
It is characterized as write-once, repeatedly reads.Each small documents storage can perform once writes flow entirely, causes write pressure
Greatly, disk space utilization rate is low, and analysis of metadata, reading data, time-consuming.
The content of the invention
In order to overcome above-mentioned deficiency of the prior art, the present invention provides a kind of storage system based on distributed type assemblies,
Including：
Client, cache module, file size judgment module, cache size judgment module, storage processing module, caching process mould
Block, the polymerization memory module for the plain memory modules that store general data file and for storing aggregate file；
File size judgment module is used to judge the size of client write-in file, is preset when the file size is less than first
During value, storage processing module stores the file to cache module；File size judgment module is additionally operable to judge that client is read
The size of file is taken, when the file size is less than the first preset value, stores processing module by file size judgment module
Judging result feed back to client, client reads the file by cache module；
Cache size judgment module is used to judge the size for the aggregate file being stored in cache module by storage processing module, works as institute
When the size for the aggregate file stated reaches the second preset value, the aggregate file in cache module is write polymerization by buffer process module
Memory module.
Preferably, storage processing module is additionally operable to judge the file of client write-in more than the when file size judgment module
During one preset value, the file is directly stored to plain memory modules；It is additionally operable to judge client when file size judgment module
When the file that end is read is more than the first preset value, the judging result of file size judgment module is fed back into client, client
The file is directly read from plain memory modules.
Preferably, buffer process module is used to that the aggregate file write-in polymerization in caching to be stored mould with close polymerization methods
Block, buffer process module each pair polymerization memory module carry out a write operation and are respectively formed a polymerization with certain memory space
Object；Buffer process module is additionally operable to generate an object head with certain memory space in each aggregate objects start bit.
Preferably, present invention additionally comprises：Cache location judgment module；
Cache location judgment module is used to judge that the file less than the first preset value that client is read whether there is in caching mould
Block, when the file is not present in cache module, the aggregate objects belonging to the file are read in caching by buffer process module
Module；Client reads the file by cache module.
Preferably, present invention additionally comprises：Timing cleaning modul；
Timing cleaning modul is used for the file in timing scan aggregate objects, and when the utilization rate of the file in aggregate objects is less than
3rd preset value and when not changed in the 4th preset value time before scanning, timing cleaning modul is by the aggregate objects
In file write polymerization memory module according to close polymerization methods again and form new aggregate objects, and delete original polymerization
Object.
Preferably, file size judgment module is additionally operable to write the file in polymerization memory module again when client
When, file size judgment module judges again the size of written document, when the file size is more than the first preset value, at storage
The file is copied to plain memory modules by reason module, and the file polymerizeing in memory module is deleted.
Preferably, the first preset value is less than the second preset value.
As can be seen from the above technical solutions, the present invention has the following advantages：
The present invention provides small documents polymerizations to design, and can effectively reduce small documents write-in disk number, and data pressure is write in mitigation；
Disk utilization rate is improved, aggregate objects where small documents are read in into caching when reading small documents, improves and reads hit rate, shortens and reads I/O
Path；Aggregate objects timing scan is cleared up, ensures small documents utilization rate, reduces unnecessary disk space consumption.
Description of the drawings
In order to illustrate more clearly of technical scheme, attached drawing needed in description will be made below simple
Ground introduction, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, for ordinary skill
For personnel, without creative efforts, other attached drawings are can also be obtained according to these attached drawings.
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is aggregate objects schematic diagram of the present invention.
Wherein, 1, client, 2, plain memory modules, 3, polymerization memory module, 4, cache module.
Specific embodiment
Goal of the invention, feature, advantage to enable the present invention is more apparent and understandable, will use below specific
Embodiment and attached drawing, the technical solution protected to the present invention are clearly and completely described, it is clear that implementation disclosed below
Example is only part of the embodiment of the present invention, and not all embodiment.Based on the embodiment in this patent, the common skill in this field
All other embodiment that art personnel are obtained without making creative work belongs to the model of this patent protection
It encloses.
The present invention provides a kind of storage system based on distributed type assemblies, as shown in Figure 1, including：
Client 1, cache module 4, file size judgment module, cache size judgment module, storage processing module, caching process
Module, the polymerization memory module 3 for the plain memory modules 2 that store general data file and for storing aggregate file；
File size judgment module is used to judge the size that client 1 writes file, when the file size is less than first in advance
If during value, storage processing module stores the file to cache module 4；File size judgment module is additionally operable to judge client
1 reads the size of file, and when the file size is less than the first preset value, file size is judged mould by storage processing module
The judging result of block feeds back to client 1, and client 1 reads the file by cache module 4；
Cache size judgment module is used to judge the size for the aggregate file being stored in cache module 4 by storage processing module, when
When the size of the aggregate file reaches the second preset value, buffer process module writes the aggregate file in cache module 4
It polymerize memory module 3.
Storage processing module is additionally operable to judge that the file that client 1 writes is more than first and presets when file size judgment module
During value, the file is directly stored to plain memory modules 2；It is additionally operable to judge that client 1 is read when file size judgment module
When the file taken is more than the first preset value, the judging result of file size judgment module is fed back into client 1, client 1 is straight
It connects and the file is read from plain memory modules 2.
Buffer process module is used to that the aggregate file write-in in caching to be polymerize memory module 3 with close polymerization methods, delays
It deposits the processing module each pair polymerization write operation of progress of memory module 3 and is respectively formed a polymerization pair with certain memory space
As；Buffer process module is additionally operable to generate an object head with certain memory space in each aggregate objects start bit.
Present invention additionally comprises：Cache location judgment module；
Cache location judgment module is used to judge that the file less than the first preset value that client 1 is read whether there is in caching mould
Block 4, when the file is not present in cache module 4, buffer process module reads in the aggregate objects belonging to the file slow
Storing module 4；Client 1 reads the file by cache module 4.
Present invention additionally comprises：Timing cleaning modul；
Timing cleaning modul is used for the file in timing scan aggregate objects, and when the utilization rate of the file in aggregate objects is less than
3rd preset value and when not changed in the 4th preset value time before scanning, timing cleaning modul is by the aggregate objects
In file write polymerization memory module 3 according to close polymerization methods again and form new aggregate objects, and delete original poly-
Close object.In aggregate file, multiple one aggregate objects of file sharing, aggregate objects institute can not really be discharged by deleting file
The space occupied causes the waste of memory space；The reduction of small documents quantity of documents simultaneously causes to cache life when reading file
Middle rate reduces, and influences reading performance.So deleting original aggregate objects, establish new aggregate objects and be only effectively manner of cleaning up.
File size judgment module is additionally operable to when client 1 writes the file in polymerization memory module 3 again, file
Size judgment module judges again the size of written document, when the file size is more than the first preset value, stores processing module
The file is copied to plain memory modules 2, and the file polymerizeing in memory module 3 is deleted.
First preset value is less than the second preset value.
A specific embodiment is indicated below：
Client 1 sends written document request, and file size judgment module judges that client 1 writes the size of file, when described
When file size is less than 512KB, storage processing module stores the file to cache module 4；Client 1 sends reading file please
It asks, when the file size is less than the first preset value, stores processing module by the judging result of file size judgment module
Client 1 is fed back to, client 1 reads the file by cache module 4；
Cache size judgment module judges the size for the aggregate file being stored in cache module 4 by storage processing module, when described
The size of aggregate file when reaching 4M, buffer process module is by the aggregate file write-in polymerization memory module in cache module 4
3；As shown in Fig. 2, buffer process module is stored the aggregate file write-in polymerization in caching with the close polymerization methods that 4K aligns
Module 3, the buffer process module each pair polymerization write operation of progress of memory module 3, which is respectively formed one, has certain memory space
Aggregate objects；Buffer process module is additionally operable to generate an object with certain memory space in each aggregate objects start bit
Head.
Associated 4K alignment is a partitioning technique for being called " high-level formatting "." high-level formatting " is international hard disk
Equipment and materials association are title used by new types of data architecture.
As time goes on, hard-disk capacity constantly extends so that 512 byte of each sector defined before is no longer so
It is reasonable, each 512 byte of sector is then changed to each 4096 bytes in sector, that is, " the 4K sectors " often said now.
With NTFS（New Technology File System are the file system of WindowsNT environment）Become standard
Hard disk file system, the default allocation cell size of file system（Cluster）And 4096 bytes, in order to make cluster opposite with sector
Should, even if physical hard disk subregion aligns with the logical partition that computer uses, ensure disk read-write efficiency, so just there is " 4K
The concept of alignment ".
When file size judgment module judges that the file that client 1 writes is more than 512KB, storage processing module is by described in
File directly stores to plain memory modules 2 or the judging result of file size judgment module is fed back to client 1, client
The file is directly read from plain memory modules 2 in end 1.
The file less than the first preset value that the client 1 that cache location judgment module judges is read whether there is in caching mould
Block 4, when the file is not present in cache module 4, buffer process module reads in the aggregate objects belonging to the file slow
Storing module 4；Client 1 reads the file by cache module 4.
File in timing cleaning modul timing scan aggregate objects, and when the utilization rate of the file in aggregate objects is less than
3rd preset value and when not changed in the 4th preset value time before scanning, timing cleaning modul is by the aggregate objects
In file write polymerization memory module 3 according to close polymerization methods again and form new aggregate objects, and delete original poly-
Close object.
When client 1 writes the file in polymerization memory module 3 again, text is write in the judgement of file size judgment module again
The size of part, when the file size is more than the first preset value, the file is copied to by storage processing module commonly to be deposited
Module 2 is stored up, and the file polymerizeing in memory module 3 is deleted.
As shown in Fig. 2, file arranges in a manner that 4KB aligns in aggregate objects, there is the storage sky less than 4KB between file
Between.
Each small documents minimum occupies 4KB spaces, and maximum occupies 512KB spaces, the maximum occupancy 512MB's of aggregate file
In the case of, aggregate file small file quantity can be determined substantially.In the case where small documents size is 4KB, aggregate file is most
Multipotency enough writes 130688 small documents；In the case where small documents size is 512KB, aggregate file is at best able to write-in 896
A small documents.
Computational methods are as follows：Aggregate file is maximum to occupy 512MB, and each aggregate objects are 4MB, then aggregate objects number：
512/4=128；Each aggregate objects are 4MB, and each aggregate objects have the object head of 12KB；Small text in each aggregate objects
Part number：（4x1024-12）/ file size；Aggregate file small file number is：（4084/ source file size）*128.
Term " first ", " second ", " the 3rd " " in description and claims of this specification and above-mentioned attached drawing
Four " etc.（If there is）It is the object for distinguishing similar, without being used to describe specific order or precedence.It should manage
The data that solution so uses can exchange in the appropriate case, so as to the embodiment of the present invention described herein can with except
Here the order beyond those for illustrating or describing is implemented.In addition, term " comprising " and " having " and their any deformation,
It is intended to cover non-exclusive include.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications of these embodiments will be apparent for those skilled in the art, it is as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide scope caused.
Claims (7)
1. a kind of storage system based on distributed type assemblies, which is characterized in that including：
Client, cache module, file size judgment module, cache size judgment module, storage processing module, caching process mould
Block, the polymerization memory module for the plain memory modules that store general data file and for storing aggregate file；
File size judgment module is used to judge the size of client write-in file, is preset when the file size is less than first
During value, storage processing module stores the file to cache module；File size judgment module is additionally operable to judge that client is read
The size of file is taken, when the file size is less than the first preset value, stores processing module by file size judgment module
Judging result feed back to client, client reads the file by cache module；
Cache size judgment module is used to judge the size for the aggregate file being stored in cache module by storage processing module, works as institute
When the size for the aggregate file stated reaches the second preset value, the aggregate file in cache module is write polymerization by buffer process module
Memory module.
2. the storage system according to claim 1 based on distributed type assemblies, which is characterized in that
Storage processing module is additionally operable to when file size judgment module judges that the file of client write-in is more than the first preset value,
The file is directly stored to plain memory modules；It is additionally operable to judge the file of client reading when file size judgment module
During more than the first preset value, the judging result of file size judgment module is fed back into client, client is directly from commonly depositing
The file is read in storage module.
3. the storage system according to claim 1 based on distributed type assemblies, which is characterized in that
Buffer process module is used to that the aggregate file write-in in caching to be polymerize memory module, caching process with close polymerization methods
Module each pair polymerization memory module carries out a write operation and is respectively formed an aggregate objects with certain memory space；At caching
Reason module is additionally operable to generate an object head with certain memory space in each aggregate objects start bit.
4. the storage system according to claim 3 based on distributed type assemblies, which is characterized in that
It further includes：Cache location judgment module；
Cache location judgment module is used to judge that the file less than the first preset value that client is read whether there is in caching mould
Block, when the file is not present in cache module, the aggregate objects belonging to the file are read in caching by buffer process module
Module；Client reads the file by cache module.
5. the storage system according to claim 3 based on distributed type assemblies, which is characterized in that
It further includes：Timing cleaning modul；
Timing cleaning modul is used for the file in timing scan aggregate objects, and when the utilization rate of the file in aggregate objects is less than
3rd preset value and when not changed in the 4th preset value time before scanning, timing cleaning modul is by the aggregate objects
In file write polymerization memory module according to close polymerization methods again and form new aggregate objects, and delete original polymerization
Object.
6. the storage system according to claim 1 based on distributed type assemblies, which is characterized in that
File size judgment module is additionally operable to when client writes the file in polymerization memory module again, and file size is sentenced
Disconnected module judges again the size of written document, and when the file size is more than the first preset value, storage processing module is by described in
File is copied to plain memory modules, and the file polymerizeing in memory module is deleted.
7. the storage system according to claim 1 based on distributed type assemblies, which is characterized in that
First preset value is less than the second preset value.
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| CN201810026676.6A CN108089825B (en) | 2018-01-11 | 2018-01-11 | Storage system based on distributed cluster |
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| CN201810026676.6A CN108089825B (en) | 2018-01-11 | 2018-01-11 | Storage system based on distributed cluster |
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| CN109002543A (en) * | 2018-07-24 | 2018-12-14 | 北京京东尚科信息技术有限公司 | A kind of method and apparatus of file storage |
| CN111177105A (en) * | 2019-12-29 | 2020-05-19 | 浪潮电子信息产业股份有限公司 | Mass file writing method, device, system and medium of distributed file system |
| CN111309702A (en) * | 2020-02-28 | 2020-06-19 | 苏州浪潮智能科技有限公司 | Method and system for aggregation between files |
| CN111488125A (en) * | 2020-04-10 | 2020-08-04 | 西安交通大学 | Cache Tier Cache optimization method based on Ceph cluster |
| CN112149026A (en) * | 2020-10-20 | 2020-12-29 | 北京天华星航科技有限公司 | Distributed data storage system based on web end |
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|---|---|
| CN108089825B (en) | 2020-07-07 |
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