CN1863050A - Method of document synchronization between server and system thereof - Google Patents
Method of document synchronization between server and system thereof Download PDFInfo
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- CN1863050A CN1863050A CN 200510029707 CN200510029707A CN1863050A CN 1863050 A CN1863050 A CN 1863050A CN 200510029707 CN200510029707 CN 200510029707 CN 200510029707 A CN200510029707 A CN 200510029707A CN 1863050 A CN1863050 A CN 1863050A
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Abstract
The invention relates to a double machine backup technology and discloses a file synchronization method and system between server to make double backup low cost and be easy to realize. The invention is based on FTP technology. The standby server requires the catalog or file needed to be synchronized to main server and comparing to the local catalog or file and downloading and covering the altered catalog and file, deleting the inexistent catalog or file. The process could be started by server or the standby server.
Description
Technical field
The present invention relates to the dual-host backup technology, particularly file synchronization technology between active/standby server.
Background technology
Along with computer application the deepening continuously of telecommunications industry, telecom operation enterprise also day by day increases the degree of dependence of computer system.Especially on some crucial application, whether the backstage core system of application has the ability that the complete sum of protecting professional critical data is kept the high availability of application program, has become the telecom operation business event key of success factor that influences.In case the key business data information of being preserved in these business processes systems is lost or is destroyed, with the influence and the loss of bringing on a disaster property.
In traditional concept, telecom operation enterprise has only selects expensive large-scale computer or minicomputer to improve the stability of operation system operation, and system implementation and maintenance cost are high.And single PC server system also can't satisfy the requirement of above user for fail safe and availability at present.Under the situation of resource-constrained, how to guarantee the high availability of operation system and the safety of data, become the focal issue that numerous telecom operation enterprise customers pay close attention to.
Meanwhile, the PC server performance is greatly improved, and has caught up with even surpassed the performance of former minicomputer, and the carrier grade service device that special support magnanimity telecommunication service is handled occurs thereupon.The carrier grade service device provides Redundancy Design in order to ensure the operation of long-term stability to many parts, has constituted so-called to be made up of two computers, and the dual systems (DualSystem) of service function can externally be provided incessantly.
In such system, leading with server (Active Server) is the server that service function externally is provided, and standby server (Standby Server) is the server that provides backup functionality with server for leading, and service function externally is not provided.Master server externally provides service and produces significant datas such as device configuration information, equipment performance statistical information, equipment alarm information and User operation log when system moves, and standby server provides the backup functionality of data.Because standby server need be realized to main backup with server data, so the data backup that need provide a kind of method to solve between active/standby server is synchronous.Typical a kind of is that the file synchronization between active/standby server (File Synchronization) need be provided, be that standby server in the dual systems carries out timing synchronously with main file with server, after guaranteeing to switch, the main service that provides with server can be provided standby server fully.
In present technology, rely on the already provided service of trooping of Windows 2000AdvancedServer operating system (Cluster services) of company of Microsoft (Microsoft), by this service, Windows2000 Advanced Server operating system can provide two-server the dual-host backup function.
In actual applications, there is following problem in such scheme: at first must be based on Windows 2000Advanced Server operating system; Secondly this operating system need guarantee data reliability by the storage medium of sharing, but the storage medium of sharing generally mostly is expensive component such as disk array, and the hardware cost of this scheme is multiplied; In addition, also be necessary for shared storage medium parking space is provided, rack promptly is provided.
Summary of the invention
In view of this, main purpose of the present invention is to provide the method and the system thereof of file synchronization between a kind of server, makes that the dual-host backup cost is cheaper, realizes simpler.
For achieving the above object, the invention provides the method for file synchronization between a kind of server, comprise following steps:
The A standby server is used server lookup assigned catalogue or file by the FTP mode to the master;
The described standby server of B relatively from described main with the Query Result of server and the information of local corresponding catalogue or file, obtains the information of vicissitudinous catalogue or file;
The described standby server of C obtains described vicissitudinous catalogue or file from described master with server by the FTP mode, and covers local corresponding catalogue or file.
Wherein, described method also comprises following steps:
Described standby server is deleted with non-existent catalogue or file in the server described master according to the result of described comparison from this locality.
In addition, described method also comprises following steps:
Described master sends first message with server to described standby server;
Described standby server starts the file synchronization flow process that comprises described steps A, B, C after receiving described first message.
In this external described method, in the described steps A, described assigned catalogue or file are used the server appointment by described master, send to described standby server by described first message.
In this external described method, the file synchronization flow process that comprises described steps A, B, C is by the timer cycle triggering on the described standby server.
In this external described method, in the described steps A, the information of described assigned catalogue or file sets in advance in described standby server.
The present invention also provides the system of file synchronization between a kind of server, comprises main ftp server end module with server side, the ftp client module and the comparison synchronization module of standby server side;
Described ftp server end module is used for sending according to the request of described ftp client module the list information of assigned catalogue or file and assigned catalogue or file;
Described ftp client module is used for by described ftp server end module inquiry or downloads described main assigned catalogue or file with server;
Described relatively synchronization module is used for the information of Query Result and the local corresponding catalogue or the file of more described ftp client module, downloads catalogue or the file that changes and covers local corresponding catalogue or file by described ftp client module according to comparative result.
Wherein, described relatively synchronization module also is used for according to from described comparative result described master being deleted from this locality with non-existent catalogue or file in the server.
In this external described system, also comprise the synch command receiver module, be used to receive, and trigger from described main process with the server sync file according to the synch command of receiving from described main synch command with server.
In this external described system, described standby server side also comprises
Timer module is used for periodically triggering from described main process with the server sync file.
By relatively finding, the main distinction of technical scheme of the present invention and prior art is, based on the FTP technology, standby server is wanted synchronous catalogue or file to main with server lookup, with the information obtained and local corresponding catalogue or file relatively, according to comparative result download and cover vicissitudinous catalogue or file, deletion is led with non-existent catalogue or file in the server more.Above-mentioned synchronizing process can be passed through message trigger with server by main, also can be by the timer cycle triggering of standby server side.
Difference on this technical scheme has brought comparatively significantly beneficial effect, promptly because realize based on FTP, and integrated function in the FTP operating system (as Linux) that to be some free, so the cost of operating system reduces greatly.
Because Active Server and Standby Server uses different storage mediums, so saved expensive shared storage medium with respect to prior art, the total cost of system reduces greatly.
Because just back up incremental portion, so the speed of backup is very fast, the reliability of backup is higher, can reach backup effect quasi real time.
Description of drawings
Fig. 1 is the system schematic of file synchronization between server according to an embodiment of the invention;
Fig. 2 is the triggering signalling diagram of the method for file synchronization between according to another embodiment of the invention server;
Fig. 3 is the triggering signalling diagram of the method for file synchronization between according to still a further embodiment server;
Fig. 4 is the schematic flow sheet according to the method for file synchronization between server of the present invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Generally speaking, the method principle of file synchronization is between the server that the present invention proposes, use server lookup assigned catalogue or file by the FTP mode to the master by standby server, and compare with the local corresponding catalogue or the information of file, according to comparative result, promptly, the information of vicissitudinous catalogue or file, obtain vicissitudinous catalogue or file from main with server by the FTP mode, and increase accordingly, delete or revise, thereby finish file synchronization.By based on the FTP technology in some free operating systems that are integrated in such as Linux, reduce the cost of operating system, and the system synthesis that the shared storage medium of saving causes originally, in addition, can also reach effects such as backup rate is fast, reliability height.
Fig. 4 illustrates the flow process of the method for file synchronization between server according to an embodiment of the invention.As shown in the figure, at first, in step 410: mainly send file synchronization order " FILE SYN COMMAND " to standby server, hereinafter be referred to as " first message " with server.Comprise main assigned catalogue or fileinfo in this first message with the inquiry of server requirement standby server.Startup comprised following step 420,430 and 440 in interior file synchronization flow process after standby server was received first message.
Specifically, in step 420: standby server responds first message, uses server lookup assigned catalogue or file by the FTP mode to the master.This shows that assigned catalogue in the present embodiment or file are to be specified with server by main, and send to standby server by first message.
Then, in step 430: standby server after inquiring by the FTP mode and leading with assigned catalogue or file on the server compares their information with local corresponding catalogue or file, thereby obtains the information of vicissitudinous catalogue or file.The variation here comprises increase, deletion and the modification of file.
After this, in step 440: the vicissitudinous catalogue that standby server obtains according to a last step or the information of file, obtain vicissitudinous catalogue or file from main with server by the FTP mode, and cover local corresponding catalogue or file, thereby finish the file synchronization of active and standby server.For example, standby server is according to relatively result, finds not had some catalogues or file main in server, then should non-existent catalogue or file delete from this locality.
By top description, be appreciated that, comprise step 420, step 430 and step 440 and pass through first message trigger by main with server in interior file synchronization flow process, comprised in this first message and wanted synchronous assigned catalogue or fileinfo, Fig. 2 illustrates signaling process in this case.It is to be noted, in according to other embodiments of the invention, the file synchronization flow process also has other triggering modes, for example, as shown in Figure 3, also can be by the timer cycle triggering on the standby server, in this case, the information of assigned catalogue or file sets in advance in standby server.
Between the server that the present invention proposes in the method for file synchronization, by the FTP mode assigned catalogue or file are inquired about, and vicissitudinous catalogue or file obtained, thereby delete accordingly, revise and increase, not only can be applicable in some the free operating systems such as Linux, and save system cost, raising backup rate and reliability.
More than explanation is explained and is illustrated the method for file synchronization between the server of the present invention's proposition.Next with reference to accompanying drawing, further describe the system of file synchronization between the server that the present invention proposes.
At first it may be noted that, the focusing on having disposed being positioned at and main use server side of the system of file synchronization between this server, and be used for ftp server end module according to the list information of the request transmission assigned catalogue of ftp client module or file and assigned catalogue or file; Be positioned at the standby server side, and be used for by inquiry of ftp server end module or download main with the assigned catalogue of server or the ftp client module of file; And be positioned at the standby server side, and be used for the information of Query Result and the local corresponding catalogue or the file of comparison ftp client module, download catalogue or the file that changes and cover the local corresponding catalogue or the comparison synchronization module of file by the ftp client module according to comparative result.
Collaborative work between these three modules, realized inquiring about main with server assigned catalogue or file by the FTP mode, and download catalogue or file by relatively find changing by the FTP mode, and cover local corresponding catalogue or file, thus finish the purpose of file synchronization.Because the FTP technology has been integrated in some free operating systems such as Linux, therefore is no longer dependent on Windows2000 Advanced Server operating system, and has reduced system cost, improved backup rate and reliability.
As shown in Figure 1, in the system of file synchronization, comprise ftp client module, comparison synchronization module, synch command receiver module and timer module between server according to another embodiment of the invention, they all are positioned at the standby server side.In addition, the file syn chronizing system of present embodiment also comprises ftp server end module (not shown), and it is positioned at the main server side of using.
Specifically, ftp server end module is used for sending according to the request of ftp client module the list information of assigned catalogue or file and assigned catalogue or file.The ftp client module is used for by the inquiry of ftp server end module or downloads main assigned catalogue or file with server.Relatively synchronization module is used for the information of Query Result and the local corresponding catalogue or the file of comparison ftp client module, downloads catalogue or the file that changes and covers local corresponding catalogue or file by the ftp client module according to comparative result.For example, be used for to lead with non-existent catalogue or file in the server and deleting from this locality according to from comparative result.The synch command receiver module is used to receive the synch command of independently using server, and triggers from main process with the server sync file according to the synch command of receiving.Timer module is used for periodically triggering from main process with the server sync file.
In the present embodiment, the file synchronization flow process both can be as required, origin independently with the synch command of server trigger, also can be as required, by the timer cycle triggering of standby server side.As mentioned above, use under the situation of server triggers main, the information of assigned catalogue or file is by synch command, and promptly first message sends to standby server.And under the situation by the timer cycle triggering, the information of assigned catalogue or file sets in advance in standby server.
It is pointed out that in other embodiments of the invention system can not comprise synch command receiver module and timer module simultaneously, and only comprise any one module wherein.In this case, or be to receive the synch command of independently using server and the triggering synchronous flow process, or be exactly by the synchronous flow process of timer module periodic triggers by the synch command receiver module.
Formation and the each several part function and the relation of the system of file synchronization between the server of one embodiment of the present of invention above have been described, below the dynamic duty process of this system of brief description.
Suppose that at first origin has independently triggered this synchronous flow process with the synch command of server, after then the synch command receiver module of standby server side received the synch command that includes assigned catalogue or fileinfo, the ftp client module of the same side was inquired about this assigned catalogue or file to main with the ftp server end module of server side by the FTP mode.Subsequently, ftp server end module sends the list information of assigned catalogue or file and assigned catalogue or file according to the request of ftp client module to the standby server side.After this, the comparison synchronization module of standby server side compares with the information of local corresponding catalogue or file the assigned catalogue that receives or the list information of file and assigned catalogue or file, variation has taken place if find assigned catalogue or fileinfo, then the ftp client module is downloaded catalogue or the file that changes by ftp server end module, and cover local corresponding catalogue or file, for example increase corresponding catalogue of new catalogue or file, modification and deletion or file.For example, the ftp client module can will be led with non-existent catalogue or file in the server and delete from this locality according to comparative result.
On the other hand, suppose periodically to trigger from main process with the server sync file by timer module, then the ftp client module is according to setting in advance the assigned catalogue in standby server or the information of file, the periodic triggers of response timer module, to ftp server end module inquiry assigned catalogue or file, and the list information of assigned catalogue or file, after this process is the same states bright identically, does not do at this and to give unnecessary details.
This shows that the system of file synchronization is no longer dependent on Windows2000 Advanced Server operating system equally between server of the present invention, and do not need to use expensive shared storage medium, further reduced the cost of system.In addition, owing to only back up increment or changing unit, backup rate and reliability have therefore been improved.
Though by with reference to some preferred embodiment of the present invention, the present invention is illustrated and describes, those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (10)
1. the method for file synchronization between a server is characterized in that, comprises following steps:
The A standby server is used server lookup assigned catalogue or file by the FTP mode to the master;
The described standby server of B relatively from described main with the Query Result of server and the information of local corresponding catalogue or file, obtains the information of vicissitudinous catalogue or file;
The described standby server of C obtains described vicissitudinous catalogue or file from described master with server by the FTP mode, and covers local corresponding catalogue or file.
2. the method for file synchronization is characterized in that between server according to claim 1, and described method also comprises following steps:
Described standby server is deleted with non-existent catalogue or file in the server described master according to the result of described comparison from this locality.
3. the method for file synchronization is characterized in that between server according to claim 1, and described method also comprises following steps:
Described master sends first message with server to described standby server;
Described standby server starts the file synchronization flow process that comprises described steps A, B, C after receiving described first message.
4. the method for file synchronization is characterized in that between server according to claim 3, and in the described steps A, described assigned catalogue or file are used the server appointment by described master, sends to described standby server by described first message.
5. the method for file synchronization is characterized in that between server according to claim 1, and the file synchronization flow process that comprises described steps A, B, C is by the timer cycle triggering on the described standby server.
6. the method for file synchronization is characterized in that between server according to claim 5, and in the described steps A, the information of described assigned catalogue or file sets in advance in described standby server.
7. the system of file synchronization between a server is characterized in that, comprises main ftp server end module with server side, the ftp client module and the comparison synchronization module of standby server side;
Described ftp server end module is used for sending according to the request of described ftp client module the list information of assigned catalogue or file and assigned catalogue or file;
Described ftp client module is used for by described ftp server end module inquiry or downloads described main assigned catalogue or file with server;
Described relatively synchronization module is used for the information of Query Result and the local corresponding catalogue or the file of more described ftp client module, downloads catalogue or the file that changes and covers local corresponding catalogue or file by described ftp client module according to comparative result.
8. the system of file synchronization is characterized in that between server according to claim 7, and described relatively synchronization module also is used for according to from described comparative result described master being deleted from this locality with non-existent catalogue or file in the server.
9. the system of file synchronization between server according to claim 7, it is characterized in that, also comprise the synch command receiver module, be used to receive, and trigger from described main process with the server sync file according to the synch command of receiving from described main synch command with server.
10. the system of file synchronization is characterized in that between server according to claim 7, and described standby server side also comprises
Timer module is used for periodically triggering from described main process with the server sync file.
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| CN101394306B (en) * | 2008-07-08 | 2010-10-27 | 国电南瑞科技股份有限公司 | Seamless switching method for dual server system |
| CN101453418B (en) * | 2007-12-05 | 2011-01-12 | 高德软件有限公司 | Updating method for synchronization between customer terminal and server |
| CN101252574B (en) * | 2007-01-31 | 2011-10-05 | 国际商业机器公司 | Channel subsystem server time protocol commands and system thereof |
| CN101656753B (en) * | 2008-08-21 | 2012-06-06 | 中国移动通信集团公司 | Content synchronization method, equipment and system for dynamic content delivery |
| CN102495880A (en) * | 2011-12-05 | 2012-06-13 | 北京新媒传信科技有限公司 | Method and device for synchronizing file |
| CN102739706A (en) * | 2011-04-07 | 2012-10-17 | 腾讯科技（深圳）有限公司 | Method and system for carrying out data synchronization |
| CN103530200A (en) * | 2012-07-04 | 2014-01-22 | 腾讯科技（深圳）有限公司 | Server hot backup system and method |
| CN103580906A (en) * | 2012-08-09 | 2014-02-12 | 腾讯科技（深圳）有限公司 | Data backup method, system and server |
| CN103970624A (en) * | 2014-05-06 | 2014-08-06 | 上海动联信息技术股份有限公司 | Backup method and restoration method for identity authentication all-in-one machine |
| CN104461563A (en) * | 2014-12-24 | 2015-03-25 | 浪潮电子信息产业股份有限公司 | Method for regularly detecting newly-added file of FTP server under linux |
| CN105306532A (en) * | 2015-09-17 | 2016-02-03 | 中国电建集团成都勘测设计研究院有限公司 | System and method for improving data downloading reliability and speed in meteorological model system |
| CN105719414A (en) * | 2014-12-05 | 2016-06-29 | 航天信息股份有限公司 | POS terminal invoicing method and device, and invoicing server terminal |
| CN107463464A (en) * | 2017-07-20 | 2017-12-12 | 深圳互联先锋科技有限公司 | The method and device of automatically backup data file |
| CN109151071A (en) * | 2018-10-26 | 2019-01-04 | 福建深空信息技术有限公司 | A kind of web page files synchronous method and system |
| CN111526198A (en) * | 2020-04-24 | 2020-08-11 | 深圳融安网络科技有限公司 | Data synchronization method and device for server and computer readable storage medium |
| CN113766006A (en) * | 2021-07-29 | 2021-12-07 | 北京思特奇信息技术股份有限公司 | Real-time file transmission method and system based on FTP (file transfer protocol) |
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| CN115022307A (en) * | 2022-07-26 | 2022-09-06 | 中银金融科技有限公司 | File downloading method and device, storage medium and electronic equipment |
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| CN101252574B (en) * | 2007-01-31 | 2011-10-05 | 国际商业机器公司 | Channel subsystem server time protocol commands and system thereof |
| CN101453418B (en) * | 2007-12-05 | 2011-01-12 | 高德软件有限公司 | Updating method for synchronization between customer terminal and server |
| CN101394306B (en) * | 2008-07-08 | 2010-10-27 | 国电南瑞科技股份有限公司 | Seamless switching method for dual server system |
| CN101656753B (en) * | 2008-08-21 | 2012-06-06 | 中国移动通信集团公司 | Content synchronization method, equipment and system for dynamic content delivery |
| CN102739706A (en) * | 2011-04-07 | 2012-10-17 | 腾讯科技（深圳）有限公司 | Method and system for carrying out data synchronization |
| CN102495880B (en) * | 2011-12-05 | 2015-06-10 | 北京新媒传信科技有限公司 | Method and device for synchronizing file |
| CN102495880A (en) * | 2011-12-05 | 2012-06-13 | 北京新媒传信科技有限公司 | Method and device for synchronizing file |
| CN103530200B (en) * | 2012-07-04 | 2018-01-26 | 腾讯科技（深圳）有限公司 | A kind of server hot backup system and method |
| CN103530200A (en) * | 2012-07-04 | 2014-01-22 | 腾讯科技（深圳）有限公司 | Server hot backup system and method |
| CN103580906A (en) * | 2012-08-09 | 2014-02-12 | 腾讯科技（深圳）有限公司 | Data backup method, system and server |
| CN103580906B (en) * | 2012-08-09 | 2018-02-27 | 腾讯科技（深圳）有限公司 | A kind of method of data backup, system and server |
| CN103970624A (en) * | 2014-05-06 | 2014-08-06 | 上海动联信息技术股份有限公司 | Backup method and restoration method for identity authentication all-in-one machine |
| CN105719414A (en) * | 2014-12-05 | 2016-06-29 | 航天信息股份有限公司 | POS terminal invoicing method and device, and invoicing server terminal |
| CN104461563A (en) * | 2014-12-24 | 2015-03-25 | 浪潮电子信息产业股份有限公司 | Method for regularly detecting newly-added file of FTP server under linux |
| CN105306532A (en) * | 2015-09-17 | 2016-02-03 | 中国电建集团成都勘测设计研究院有限公司 | System and method for improving data downloading reliability and speed in meteorological model system |
| CN107463464A (en) * | 2017-07-20 | 2017-12-12 | 深圳互联先锋科技有限公司 | The method and device of automatically backup data file |
| CN109151071A (en) * | 2018-10-26 | 2019-01-04 | 福建深空信息技术有限公司 | A kind of web page files synchronous method and system |
| CN109151071B (en) * | 2018-10-26 | 2021-09-03 | 福建深空信息技术有限公司 | Webpage file synchronization method and system |
| CN111526198A (en) * | 2020-04-24 | 2020-08-11 | 深圳融安网络科技有限公司 | Data synchronization method and device for server and computer readable storage medium |
| CN113766006A (en) * | 2021-07-29 | 2021-12-07 | 北京思特奇信息技术股份有限公司 | Real-time file transmission method and system based on FTP (file transfer protocol) |
| CN113766006B (en) * | 2021-07-29 | 2024-02-23 | 北京思特奇信息技术股份有限公司 | Real-time file transmission method and system based on FTP protocol |
| CN113946553A (en) * | 2021-10-27 | 2022-01-18 | 浪潮卓数大数据产业发展有限公司 | File synchronization method of ten-million-level file volume based on ftp |
| CN115022307A (en) * | 2022-07-26 | 2022-09-06 | 中银金融科技有限公司 | File downloading method and device, storage medium and electronic equipment |
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