CN102045399B - Cloud computing mode file system and file reading method - Google Patents
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Abstract
The invention provides a cloud computing mode file system and a file reading method, wherein the system comprises a first client module, a file management module, a distributed management module and a distributed transmission module; the first client module is used for sending out a file reading request; the file management module is used for sending out an index acquisition request according to the file reading request which is sent out by the first client module; the distributed management module is used for acquiring index information of a required file and an IP (internet protocol) address of a server at which the file is located according to the index acquisition request which is sent out by the file management module; and the distributed transmission module is used for reading the file from the corresponding server according to the index information and the IP address which are acquired by the distributed management module, and sending the file to the first client module via thefile management module. According to the invention, the IP-based file reading way can be realized, and the system is applicable to IP distributed structures and has an open and unified standard interface, so that the expansibility is powerful.
Description
Technical field
The present invention relates to a kind of cloud computing mode file system and file reading, belong to the cloud computing technology field.
Background technology
Cloud computing mode is a kind ofly to be integrated into a pattern with powerful calculating ability by the network computational entity that a plurality of costs are relatively low, and one of them part and parcel is file system.Existing unit file system is mainly based on the bare machine device build; And existing storage area network network (Storage AreaNetwork, be called for short: SAN) (Redundant Array of Independent Disk, be called for short: RAID) mode makes up the mode file system based on the raid-array of each manufacturer.
There are the following problems at least in the prior art: existing cloud computing mode file system does not have unified standard interface, can only use expensive memory device and high performance calculation server, therefore a little less than open difference and the adaptability.
Summary of the invention
The invention provides a kind of cloud computing mode file system and file reading, in order to improve the scalability of file system.
One aspect of the present invention provides a kind of cloud computing mode file system, comprising:
The first client modules is used for sending the file read requests;
Document management module is used for sending index according to the described file read requests that the first client modules sends and obtains request;
The distributed management module, the IP address that the described index that is used for sending according to document management module obtains index information and this document place server of the required file of acquisition request;
The distributed transmission module is used for reading described file according to described index information and described IP address that the distributed management module is obtained from corresponding server, sends to described the first client modules through described document management module.
The present invention provides a kind of file reading on the other hand, comprising:
The file read requests that reception is sent by the first client modules;
Obtain the IP address of index information and this document place server of required file according to described file read requests;
Read described file according to described index information and described IP address from corresponding server;
The described file that reads is sent to described the first client modules.
The present invention has realized IP-based file reading manner, be applicable to the IP distributed architecture, has open unified standard interface, scalability is powerful, only need to expand cheap PC server, just but extension storage performance and computing capability make the user needn't adopt expensive storage and high performance calculation server just can build the cloud computing platform of oneself, develop the cloud computing of oneself and use.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do one to the accompanying drawing of required use in embodiment or the description of the Prior Art and introduce simply, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the flow chart of file reading embodiment one of the present invention;
Fig. 2 is the flow chart of file reading embodiment two of the present invention;
Fig. 3 is the structural representation of cloud computing mode file system embodiment of the present invention;
Fig. 4 is the function call command transfer process schematic diagram of system shown in Figure 3.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Fig. 1 is the flow chart of file reading embodiment of the present invention, as shown in the figure, comprises the steps:
Step 110 receives the file read requests that is sent by the first client modules.
Wherein, this document read requests is sent by operating the first client modules by first user, reads required file in order to request.
Step 120, the IP address that obtains index information and this document place server of required file according to described file read requests.
Particularly, can obtain request according to described file read requests generating indexes first, corresponding resource distribution configuration information is searched in the request of obtaining according to this index; And then the IP address that obtains index information and this document place server of required file according to the described resource distribution configuration information that finds.
Step 130 reads described file according to described index information and described IP address from corresponding server.
Wherein, recorded the local physical storage locations of described file in server in the index information.The mode that index information separates with file is file management mode main in the prior art.The described method of the present embodiment is continued to use this mode, so that adapt with the local file system of existing server.
Particularly, can be first according to the local file system form of described server described index information be carried out protocol adaptation, obtain the index information after adaptive; And then read described file according to described index information and described IP address after adaptive from corresponding server.Thereby make the described index information can be suitable with the local file system of the server with described IP address.
Step 140 sends to described the first client modules with the described file that reads.
Particularly, can carry out protocol adaptation to the described file that reads, obtain the file after adaptive; And then described file after adaptive sent to described the first client modules.Thereby make the described file can be suitable with the first client modules.Particularly, can be compound index file (CFS) form with the described file conversion of reading when carrying out described protocol adaptation, so that the first client modules can be processed this CFS formatted file after adaptive.
The described method of the present embodiment has realized IP-based file reading manner, be applicable to the IP distributed architecture, has open unified standard interface, scalability is powerful, only need to expand cheap PC server, just but extension storage performance and computing capability make the user needn't adopt expensive storage and high performance calculation server just can build the cloud computing platform of oneself, develop the cloud computing of oneself and use.
Fig. 2 is the flow chart of file reading embodiment two of the present invention, as shown in the figure, the described method of the present embodiment also comprises the steps: after corresponding server reads described file according to described index information and described IP address above-mentioned steps 130 is described
Step 210 is according to the corresponding file seed of the described file generated that reads.
Wherein, described file kind subrecord the information that once read by which client modules of this document and the index information of this document.
Step 220, when receiving another file read requests that sends from the second client modules, whether inquiry once transmitted the file that described another file read requests will read to described the first client modules, and Query Result is sent to described the second client modules.
Wherein, described another file read requests is sent by operating the second client modules by the second user, reads required file in order to request.
Step 230, when described Query Result when being, described the second client modules obtains corresponding file seed.
Wherein, if described Query Result is yes, show that then the required file of described the second client modules is identical with the file that described the first client modules once read.
Step 240, the second client modules obtains and the corresponding file of described file seed from described the first client modules in point-to-point mode according to described file seed.
In addition, if described Query Result is no, that is to say that described the first client modules did not read described file, then this second client can adopt embodiment one described method to read required file, perhaps also can transmit described file in point-to-point mode from other client modules.
The described method of the present embodiment has realized between the client modules that with point-to-point mode transfer files, the time of having saved file transfer has also alleviated the work load of file system.
Fig. 3 is the structural representation of cloud computing mode file system embodiment of the present invention, as shown in the figure, this system comprises at least: the first client modules 11, document management module 12, distributed management module 13 and distributed transmission module 14, wherein, document management module 12, distributed management module 13 and distributed transmission module 14 are arranged in the main control unit of server.
Need to prove: the described client modules of the present embodiment and server are actually the same equipment with identical inner modular structure herein, and only this equipment has been played the part of different roles when carrying out different operations.For example, when this device request file reading, it is as client modules; And when this equipment provided the file of asking, it was as server.
The operation principle of the described system of the present embodiment below is described:
The first client modules 11 sends the file read requests; The described file read requests that document management module 12 sends according to the first client modules 11 sends index and obtains request; The described index that distributed management module 13 is sent according to document management module 12 obtains the IP address of index information and this document place server of the required file of acquisition request; Distributed transmission module 14 reads described file according to described index information and described IP address that distributed management module 13 is obtained from corresponding server, sends to described the first client modules 11 through described document management module 12.Particularly, can also comprise communication protocol module in the described server, wherein preserve TCP/IP protocol suite, distributed transmission module 14 can be carried out the corresponding server of adaptive rear access to the IP address by the TCP/IP protocol suite in the protocol adaptation module 17 calling communication protocol modules.
Wherein, storage available in the current cloud and computational resource are searched in described distributed management module 13 main responsible scheduling, and create and management cloud buffer memory, preserve the index of cloud resource.Described document management module 12 mainly is responsible for finishing file operation and management, comprising: create, delete, search, name, read, write, the operation such as opening and closing.Described distributed transmission module 14 mainly is responsible for finishing the transmission of distributed document between client modules and server.
Particularly, this system can further include: Configuration Manager 15 and core algorithm module 16.After above-mentioned document management module 12 sends index and obtains request, can search corresponding resource distribution configuration information by Configuration Manager 15 first; And then obtain the index information of required file and the IP address of this document place server sends to described distributed management module 13 by the resource distribution configuration information that core algorithm module 16 finds according to Configuration Manager 15.
Wherein, the function of described core algorithm module 16 can comprise: file addressing algorithm, cloud resource scheduling algorithm, file transfer control algolithm, point-to-point kind of subpath addressing algorithm, file encryption algorithm and file transfer compression and decompression algorithm etc.Described Configuration Manager 15 be responsible for finishing loading, heavy duty, the Cloud Server of cloud resource allocation startup, stop, and being responsible for and distributed management module 13 communicates, to finish the variation of resource allocation.
Particularly, this system can further include: protocol adaptation module 17, and the described index information that distributed management module 13 is obtained according to the local file system form of described server carries out protocol adaptation, obtains the index information after adaptive; Then by described distributed transmission module 14 according to protocol adaptation module 17 obtain described adaptive after index information and described IP address read described file from corresponding server.And described protocol adaptation module 17 can also be carried out protocol adaptation to the described file that distributed transmission module 14 reads, and obtains the file after adaptive, particularly, can be the CFS form with the described file conversion of reading when carrying out described protocol adaptation; Then through described document management module 12 described file after adaptive is sent to described the first client modules 11 by described distributed transmission module 14.Wherein, these protocol adaptation module 17 main adaptive bottom host-host protocol and local file systems be responsible for.
The described system of the present embodiment also can be called cloud file system (Cloud File Systems, be called for short: CFS), this system is based on the IP agreement, be applicable to the IP distributed architecture, have open unified standard interface, scalability is powerful, only need to expand cheap PC server, just but extension storage performance and computing capability make the user needn't adopt expensive storage and high performance calculation server just can build the cloud computing platform of oneself, develop the cloud computing of oneself and use.
In addition, as shown in Figure 3, can further include in the described system: point-to-point transmission module 18 and the second client modules 19, wherein, point-to-point transmission module 18 can be finished the point-to-point transmission between client modules, produce seed watch-dog (tracker), the file name of transmitting then offer the inventory that other download the opposite equip. of same file for knowing in point-to-point (Peer to Peer) transmission.The operation principle of this system is as follows:
Described distributed transmission module 14 can also further be kept in the described point-to-point transmission module 18 according to the corresponding file seed of described file generated that reads after file reads carrying out; When the second user sends another file read requests by operating the second client modules 19, described document management module 12 is inquired about described distributed transmission module 14 according to described another file read requests and whether was once transmitted the file that described another file read requests will read to described the first client modules 11, and Query Result is sent to described the second client modules 19; When described Query Result when being, 19 of described the second client modules obtain corresponding file seed from described point-to-point transmission module 18, and according to this document seed with point-to-point mode from corresponding the first client modules 11 obtain this first client modules 11 preserve with the corresponding file of described file seed.Particularly, the second client modules 19 can call point-to-point kind of subpath addressing algorithm in the core algorithm module 16 by point-to-point transmission module 18, to realize the pp file transmission between the second client modules 19 and the first client modules 11.
Wherein, described the first client modules 11 and the second client modules 19 can provide interface for the CFS system operation that the user carries out, and create and the management local cache, and are responsible for point-to-point transmitting and scheduling.
Need to prove herein, the call relation between the dotted arrow representation module shown in Fig. 3, for example: calling interface calls point-to-point transport module 18, document management module 12 and distributed transmission module 14; Distributed management module 13 is called Configuration Manager 15, core algorithm module 16 and protocol adaptation module 17; Distributed transmission module 14 invocation protocol adaptation module 17; Point-to-point transmission module 18 is called core algorithm module 16, and invoked module realizes aforesaid corresponding function by carrying out the function call order.Fig. 4 is the function call command transfer process schematic diagram of system shown in Figure 3, as shown in the figure, comprises following function command invoked procedure:
1. user A calls read () function command at client modules A and carries out file and read;
2. document management module cushions read () function command, after this order pushes on, calls the readIndex () function command of distributed management module;
3. the distributed management module reads the buffering area (Buffer) of Configuration Manager this moment by calling readConfig () function command;
4. Configuration Manager calls the core algorithm module by calling getQuickDataIndex () function command according to index informations such as name spaces, and the core algorithm module is returned the index information that needs file reading and the IP address of place server;
5. after the distributed management module obtains file index, by readLocalFileIndex () function command invocation protocol adaptation module;
6. the protocol adaptation module finds the server at file place according to the IP address, and obtains the local file formatted data by calling getAdpterFileHandler () function command to server;
7. server obtains the local file formatted data by calling getLocalHandler () function command from local file system;
8. server returns to the protocol adaptation module by calling getMatchToHandler () function command with the local file formatted data, according to the local file system form that records in this local file formatted data described index information is carried out adaptively by the protocol adaptation module, and the index information after adaptive returned to document management module through the distributed management module;
9. after document management module obtains index information after adaptive, call readData (Index) function command, to obtain document entity;
10. the distributed transmission module is called readLocalFileData () function command, to obtain document entity;
11. the protocol adaptation module is obtained corresponding document entity from the local file system of server and is returned to the distributed transmission module by calling getAdpaterFileData () function command, and through the file administration module document entity is transferred to client modules A by the distributed transmission module, thereby finish reading file.
12. user B calls read () function command at client modules B, carries out file to the document management module request and reads;
13. document management module is known the seed that whether has this file by calling haveLiveIndex () function command from the distributed transmission module, if exist, return to client modules B kind subindex;
14. client modules B point-to-pointly transmits the file that will read from corresponding client modules by getLiveIndex () function command after the point-to-point transmission module obtains the file seed, for example, in Fig. 4, if this document seed shows corresponding file and be kept among the client modules A, then client modules B transmits the file that will read point-to-pointly from client modules A; If this document seed shows corresponding file and be kept among the client modules C, then client modules B transmits the file that will read point-to-pointly from client modules C.
The described system of the present embodiment has realized further also between the client modules that with point-to-point mode transfer files, the time of having saved file transfer has also alleviated the work load of file system.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: the various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (7)
1. a cloud computing mode file system is characterized in that, comprising:
The first client modules is used for sending the file read requests;
Document management module is used for sending index according to the described file read requests that the first client modules sends and obtains request;
The distributed management module, the IP address that the described index that is used for sending according to document management module obtains index information and this document place server of the required file of acquisition request;
The distributed transmission module is used for reading described file according to described index information and described IP address that the distributed management module is obtained from corresponding server, sends to described the first client modules through described document management module;
The protocol adaptation module, the described index information that the distributed management module is obtained according to the local file system form of described server carries out protocol adaptation, obtains the index information after adaptive;
Described distributed transmission module also be used for according to the protocol adaptation module obtain described adaptive after index information and described IP address read described file from corresponding server;
The described file that described protocol adaptation module also is used for the distributed transmission module is read carries out protocol adaptation, obtains the file after adaptive;
Described distributed transmission module sends to described the first client modules through described document management module with described file after adaptive.
2. system according to claim 1 is characterized in that, also comprises:
Configuration Manager is searched corresponding resource distribution configuration information for the described index that sends according to the document management module request of obtaining;
The core algorithm module is used for obtaining the index information of required file and the IP address of this document place server sends to described distributed management module according to the resource distribution configuration information that Configuration Manager finds.
3. system according to claim 1 is characterized in that, also comprises: the point-to-point transmission module; Described distributed transmission module also is used for being kept at described point-to-point transmission module according to the corresponding file seed of described file generated that reads.
4. system according to claim 3 is characterized in that, also comprises:
The second client modules is used for sending another file read requests;
Described document management module also is used for inquiring about described distributed transmission module and whether once transmitted the file that described another file read requests will read to described the first client modules, and Query Result is sent to described the second client modules;
When described Query Result when being, described the second client modules also is used for obtaining corresponding file seed from described point-to-point transmission module, and according to this document seed with point-to-point mode from corresponding the first client modules obtain preserve this first client modules with the corresponding file of described file seed.
5. a file reading is characterized in that, comprising:
The file read requests that reception is sent by the first client modules;
Obtain the IP address of index information and this document place server of required file according to described file read requests;
Read described file according to described index information and described IP address from corresponding server;
The described file that reads is sent to described the first client modules;
Reading described file according to described index information and described IP address from corresponding server comprises:
Local file system form according to described server carries out protocol adaptation to described index information, obtains the index information after adaptive;
Read described file according to described index information and described IP address after adaptive from corresponding server;
The described file that reads is sent to described the first client modules to be comprised:
The described file that reads is carried out protocol adaptation, obtain the file after adaptive;
Described file after adaptive is sent to described the first client modules.
6. method according to claim 5 is characterized in that, obtains according to described file read requests
Getting the index information of required file and the IP address of this document place server comprises:
Obtain request according to described file read requests generating indexes;
Corresponding resource distribution configuration information is searched in the request of obtaining according to described index;
Obtain the IP address of index information and this document place server of required file according to the described resource distribution configuration information that finds.
7. method according to claim 5 is characterized in that, according to described index information and described
The IP address also comprises after corresponding server reads described file:
According to the corresponding file seed of the described file generated that reads;
When receiving another file read requests that sends from the second client modules, whether inquiry once transmitted the file that described another file read requests will read to described the first client modules, and Query Result is sent to described the second client modules;
When described Query Result when being, described the second client modules obtains corresponding file seed;
Described the second client modules obtains and the corresponding file of described file seed from described the first client modules in point-to-point mode according to described file seed.
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| KR102079339B1 (en) * | 2011-08-31 | 2020-02-19 | 삼성전자주식회사 | Apparatas and method for contents transfer to dlna connected device of cloud system in an electronic device |
| EP2566177B1 (en) | 2011-08-31 | 2020-10-07 | Samsung Electronics Co., Ltd. | Electronic apparatus and method for transferring contents on cloud system to device connected to DLNA |
| CN102724301B (en) * | 2012-05-29 | 2015-02-04 | 中国联合网络通信集团有限公司 | Cloud database system and method and equipment for reading and writing cloud data |
| CN103475743B (en) * | 2013-09-30 | 2018-01-23 | 广州博冠信息科技有限公司 | A kind of method, apparatus and system for cloud service |
| CN103473379B (en) * | 2013-09-30 | 2017-02-15 | 广州博冠信息科技有限公司 | Method, device and system used for electronic map |
| CN104702634B (en) * | 2013-12-04 | 2018-10-02 | 腾讯科技（深圳）有限公司 | Data operation request treatment method, apparatus and system |
| CN106095873B (en) * | 2016-06-06 | 2020-10-23 | 北京美屏传媒有限公司 | Method and device for expanding capacity of mobile terminal |
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