CN105893633A - File system real-time synchronization method based on rsync - Google Patents
File system real-time synchronization method based on rsync Download PDFInfo
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- CN105893633A CN105893633A CN201610391615.0A CN201610391615A CN105893633A CN 105893633 A CN105893633 A CN 105893633A CN 201610391615 A CN201610391615 A CN 201610391615A CN 105893633 A CN105893633 A CN 105893633A
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- file system
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- time synchronization
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004891 communication Methods 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
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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
- G06F16/17—Details of further file system functions
- G06F16/1734—Details of monitoring file system events, e.g. by the use of hooks, filter drivers, logs
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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
- G06F16/17—Details of further file system functions
- G06F16/178—Techniques for file synchronisation in file systems
- G06F16/1787—Details of non-transparently synchronising file systems
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Databases & Information Systems (AREA)
- Data Mining & Analysis (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computing Systems (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
- Information Transfer Between Computers (AREA)
- Telephonic Communication Services (AREA)
Abstract
The invention discloses a file system real-time synchronization method based on rsync, and belongs to the field of computer file system synchronization. The method is characterized in that a message notification module is arranged in a local file system, a message communication mechanism is established between a generator of the rsync service and the local file system, and the change of the file system is sensed through the message communication mechanism. Compared with the prior art, the method has the characteristics of simplicity, practicability, easiness in implementation and the like by achieving the purpose of real-time synchronization of the file system.
Description
Technical field
The present invention relates to computer file system field of synchronization, a kind of file system real-time synchronization method based on rsync.
Background technology
Mirror back-up is the backup of unique file (data file, archive log, control file).The file backup of its much like operating system grade.It is not backup set or backup piece, is not the most compressed, has the following characteristics that
(1) it is the complete copy of data file or archive log file etc., processes without any compression etc., tape can not be backuped to, the most do not support incremental backup；
(2) can use immediately when recovering and realize fast quick-recovery；
(3) copy command of operating system it is equal to；
(4) can be as level incremental backup.
Rsync(remote sync) be the mirror back-up of data instrument under class unix system, remote synchronization support local replica, or with other SSH, rsync host synchronization.Rsync mirror back-up of data instrument is possible not only to mirror image and preserves whole directory tree and file system, also easily accomplishes to keep the authority of original file, time, soft or hard link etc., is widely used in data processing field.
Rsync mirror back-up of data instrument is disadvantageous in that: back-up job needs manually to trigger or write timed task and triggers, cannot back up in real time according to the change of file system, both have impact on backup effect, reduce data backup accuracy, have a strong impact on again the use impression of user.
Summary of the invention
The technical assignment of the present invention is for above-mentioned the deficiencies in the prior art, it is provided that a kind of practical file system real-time synchronization method based on rsync.
The technical assignment of the present invention realizes in the following manner: a kind of file system real-time synchronization method based on rsync, it is characterized in arranging message notification module in local file system, between generator and the local file system of rsync service, set up information communication mechanism, changed by information communication mechanism filesystem-aware.
In order to ensure operating rate and accuracy, generator only retains the notice of up-to-date file system change, and when rsync service end proceeds by increment synchronization, generator deletes this change notification.
The message notification module being arranged on local file system is preferably call back function, after application program writes data to local file system, calls this call back function and sends a message to generator.
As preferentially, said method comprises the following steps:
One, when application program written document is to local file system, local file system message notification module transmission file system change message to generator；
Two, generator initiates a file system increment synchronization, and deletes this message；
Four, client carries out file system increment synchronization according to rsync algorithm.
Compared with prior art, the file system real-time synchronization method based on rsync of the present invention is by increasing message notification module in local file system, between local file system and generator, set up information communication mechanism, reach the purpose of file system real-time synchronization.
Specifically, the synchronous method of the present invention has a beneficial effect highlighted below:
One, can back up in real time according to the change of file system, efficiency is high, user uses and experiences；
Two, with call back function effect message notification module, simple and practical, be easily achieved.
Accompanying drawing explanation
Accompanying drawing 1 is the flow chart of present invention file system based on rsync real-time synchronization method.
Detailed description of the invention
The file system real-time synchronization method based on rsync of the present invention is described in detail below with specific embodiment with reference to Figure of description.
Embodiment:
As shown in Figure 1, the file system real-time synchronization method based on rsync of the present invention is to arrange a call back function in local file system as message notification module, sets up information communication mechanism between generator and the local file system of rsync service.
After application program writes data to local file system, call this call back function and send a message to generator, generator and carry out a file system synchronization according to notice.
In synchronizing process, generator only retains the notice of up-to-date file system change, and when rsync service end proceeds by increment synchronization, generator deletes this change notification.
Once concrete file system real-time incremental is synchronized, needs through following step:
A) application program written document is to local file system；
B) local file system message call notification module sends file system change message to generator；
C) generator initiates a file system increment synchronization, and deletes this message, i.e. when rsync starts to synchronize file system, deletes this message informing；
D) client carries out file system increment synchronization according to rsync algorithm.
Claims (4)
1. a file system real-time synchronization method based on rsync, it is characterized in that: message notification module is set in local file system, between generator and the local file system of rsync service, set up information communication mechanism, changed by information communication mechanism filesystem-aware.
File system real-time synchronization method based on rsync the most according to claim 1, it is characterized in that: generator only retains the notice of up-to-date file system change, when rsync service end proceeds by increment synchronization, generator deletes this change notification.
File system real-time synchronization method based on rsync the most according to claim 2, it is characterized in that: the message notification module being arranged on local file system is call back function, after application program writes data to local file system, call this call back function and send a message to generator.
File system real-time synchronization method based on rsync the most according to claim 3, it is characterised in that comprise the following steps:
One, when application program written document is to local file system, local file system message notification module transmission file system change message to generator；
Two, generator initiates a file system increment synchronization, and deletes this message；
Four, client carries out file system increment synchronization according to rsync algorithm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610391615.0A CN105893633A (en) | 2016-06-06 | 2016-06-06 | File system real-time synchronization method based on rsync |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610391615.0A CN105893633A (en) | 2016-06-06 | 2016-06-06 | File system real-time synchronization method based on rsync |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105893633A true CN105893633A (en) | 2016-08-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610391615.0A Pending CN105893633A (en) | 2016-06-06 | 2016-06-06 | File system real-time synchronization method based on rsync |
Country Status (1)
| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107368388A (en) * | 2017-06-20 | 2017-11-21 | 华南理工大学 | A kind of database real time backup method for monitoring file system change |
| CN110018878A (en) * | 2018-01-09 | 2019-07-16 | 阿里巴巴集团控股有限公司 | A kind of distributed system data load method and device |
| US12015667B2 (en) | 2021-04-12 | 2024-06-18 | Hewlett Packard Enterprise Development Lp | Synchronizing user data between a sync client and a sync server on a customer computing system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060236152A1 (en) * | 2005-04-14 | 2006-10-19 | International Business Machines Corporation | Method and apparatus for template based parallel checkpointing |
| CN1904889A (en) * | 2006-08-11 | 2007-01-31 | 中国科学院计算技术研究所 | Method for storing metadata of logic document system by adhesion property |
-
2016
- 2016-06-06 CN CN201610391615.0A patent/CN105893633A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060236152A1 (en) * | 2005-04-14 | 2006-10-19 | International Business Machines Corporation | Method and apparatus for template based parallel checkpointing |
| CN1904889A (en) * | 2006-08-11 | 2007-01-31 | 中国科学院计算技术研究所 | Method for storing metadata of logic document system by adhesion property |
Non-Patent Citations (1)
| Title |
|---|
| ANDYLIN02: "Rsync实现原理", 《ANDYLIN02.ITEYE.COM/BLOG/1041752》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107368388A (en) * | 2017-06-20 | 2017-11-21 | 华南理工大学 | A kind of database real time backup method for monitoring file system change |
| CN110018878A (en) * | 2018-01-09 | 2019-07-16 | 阿里巴巴集团控股有限公司 | A kind of distributed system data load method and device |
| CN110018878B (en) * | 2018-01-09 | 2022-08-30 | 阿里巴巴集团控股有限公司 | Distributed system data loading method and device |
| US12015667B2 (en) | 2021-04-12 | 2024-06-18 | Hewlett Packard Enterprise Development Lp | Synchronizing user data between a sync client and a sync server on a customer computing system |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160824 |
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| RJ01 | Rejection of invention patent application after publication |