CN104866395B - Data back up method and system, main/standby switching method and system - Google Patents
Data back up method and system, main/standby switching method and system Download PDFInfo
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Abstract
The invention discloses a kind of data back up method and system, main/standby switching method and system, when it is determined that needing to carry out backup operation, obtains the incremental data at main center；Enter row format conversion to the incremental data, so that the data after conversion meet the call format of backup center；By the data syn-chronization after the conversion to backup center.Specifically, according to default Analysis of Concurrency Control, and/or relying on control strategy, and/or Priority Control Strategies, and/or maximum backup interval, judge whether to need to carry out backup operation.Using the scheme described in the embodiment of the present invention, data lock in time can be controlled according to actual demand, so as to which flexibility ratio is higher, and system resource can be saved；Also, the scheme described in the embodiment of the present invention need not open archive mode, so as under big data processing environment, it is possible to increase system treatment effeciency.
Description
Technical field
The present invention relates to active-standby switch technical field, more particularly to a kind of data back up method and system, active-standby switch side
Method and system.
Background technology
It is information-based more and more extensive and deep in the application in industry-by-industry with the continuous development of IT information systems.Enterprise
Information-based industry is substantially by business mistakes such as the production process of enterprise, material movement, issued transaction, cash flow, customer interactions
Journey digitizes, and by various information systems, the various information in control and integration Management enterprise business, realizes enterprise
The shared and effectively utilization of external information in the industry, to improve the economic benefit of enterprise and the market competitiveness.Therefore, in the overwhelming majority
Industry, such as finance, telecommunications and government field, the server as key equipment are responsible for the processing of a large amount of important informations, deposited
Storage and transmitting for task, once IT system breaks down, it will beyond measure loss is brought, IT system must ensure 7*24*
Run without interruption within 365 hours.In this case, the high availability of system（High Availability）Just seem particularly heavy
Will.
The high availability of system is referred to by shortening because of routine maintaining operations as far as possible（Plan）With the system crash of burst
（It is unplanned）Caused downtime, to improve the availability of system and application.System high-available mainly has three kinds of work
Mode：
First, two-shipper is mutually for mode, i.e. two main frames run respective services and mutually monitor situation simultaneously, when any
Platform main frame delay machine when, all work that another main frame connects that let it be immediately, ensure that work is not interrupted, the key of application service system
Data are stored in shared memory systems, and which is applied on the premise of application runs without interruption, examine from the angle of investment
Consider, existing hardware resource can be made full use of, but when failure occurs, the performance of the main frame of adapter all working can be by larger
Influence；
2nd, two-node cluster hot backup mode, host work, standby host are in monitoring preparation situation；When main frame delays machine, standby host adapter master
All work of machine, after main frame recovers normal, main frame is switched to by the setting of user in a manner of automatic or manual by service
Upper operation, the uniformity of data solve by shared memory systems, suitable for the user high to availability requirement；
3rd, cluster working method, multiple host work together, and each one or several services of self-operating, are respectively service definition
One or more backup hosts, when some hostdown, the service can operated in thereon is taken over by other main frames, is applicable
In the user for requiring high to calculating process performance.
In numerous High Availabitity products, including the RAID 0 based on disk High Availabitity（Redundant
Array of IndependentDisks0, RAID0）, RAID1, RAID0+1, RAID5 technology, Intrusion Detection based on host High Availabitity
Veritas Cluster Server, ORALCE DataGuard, data backup RMAN, COMMVAULT, load balancing F5,
Radware etc..Meanwhile increasing software product itself also contains the characteristic of High Availabitity, such as oracle rac, db2
HADR（Hight Available Disaster Recover）.These High Availabitity products all provide IT system to some extent
The correlation function of High Availabitity, such as two-shipper mutual standby, two-node cluster hot backup, cluster, greatly improve the high availability of IT system.
The research of the design method of current High Availabitity is also continue, for example, correlation technique is by by distributed number
Redundancy is synchronized according to what storehouse cluster disperseed, and redundant database node and main database node are simultaneously participated in into distributed number
According to the service in storehouse, so as to improve the high availability of distributed data base, ensure the uniformity and integrality of distributed data base, but
Be, the program can not meet part IT system " on-demand customization " High Availabitity requirement, so as to flexibility ratio it is poor and may cause be
The system wasting of resources；For another example correlation technique, which is each database node, distributes virtual IP address；Heartbeat detection is carried out to database node,
Judge whether the master and slave node of database survives, when finding host node inaccessible, automatically drift to virtual IP address from node,
And it is host node to switch from the identity of node, to keep Oracle database service high availability, still, the program equally exists
Can not " on-demand customization " requirement, also, Data Replication Technology in Mobile based on DATAGUARD requires that data open archive mode,
Under big data processing environment, archive mode can reduce treatment effeciency.
The content of the invention
In view of this, it is a primary object of the present invention to provide a kind of data back up method and system, main/standby switching method
And system, flexibility ratio is higher, and can save system resource, improve system treatment effeciency.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of data back up method, including：
When it is determined that needing to carry out backup operation, the incremental data at main center is obtained；
Enter row format conversion to the incremental data, so that the data after conversion meet the call format of backup center；
By the data syn-chronization after the conversion to backup center.
This method also comprises determining whether to need to carry out backup operation, is specially：
According to default Analysis of Concurrency Control, and/or dependence control strategy, and/or Priority Control Strategies, and/or most
Big backup interval, judge whether to need to carry out backup operation.
It is described obtain main center incremental data be：According to default acquisition strategy, the Partial Incremental number at main center is obtained
According to or whole incremental datas.
This method also includes：
Data backup progress is monitored；
Corresponding Query Result is returned to according to the request of data backup progress queries.
A kind of main/standby switching method, including：
During main central fault, the scheduling relation at the main center and job dependence relation are switched to backup center；
According to the job task data backed up, the job task at the main center is switched into backup center, wherein, institute
Job task data are stated to be backed up according to the method described in any one of Claims 1-4.
The job task data comprise at least the task status of the main central record, and the operation by main center is appointed
Business switches to backup center, including：
According to the synchronous regime of job task on backup center, the task status of the job task is modified；
The job task is continued to run with according to revised task status.
The job task by main center switches to backup center：
According to default switchover policy, switch the Partial Jobs task at main center or whole job tasks.
This method also includes：After the trouble shooting at the main center, the job task is switched back into master from backup center
Center.
A kind of data backup system, including：Acquisition module, modular converter and synchronization module；Wherein,
The acquisition module, for when it is determined that needing to carry out backup operation, obtaining the incremental data at main center；
The modular converter, for entering row format conversion to the incremental data, so that the data after conversion meet backup
The call format at center；
The synchronization module, for by the data syn-chronization after the conversion to backup center.
The system also includes scheduler module,
The scheduler module, for judging whether to need to carry out backup operation, specifically, according to default con current control plan
Slightly, and/or control strategy, and/or Priority Control Strategies, and/or maximum backup interval are relied on, judge whether to need to carry out standby
Part operation, it is determined that when needing to carry out backup operation, notifies the acquisition module.
The acquisition module, the Partial Incremental data or complete specifically for according to default acquisition strategy, obtaining main center
Portion's incremental data.
The system also includes monitoring modular,
The monitoring modular, asked for being monitored to data backup progress, and according to data backup progress queries
Return to corresponding Query Result.
A kind of active-standby switch system, including：First handover module, the second handover module and backup subsystem；Wherein,
First handover module, in main central fault, by the scheduling relation and job dependence at the main center
Relation is switched to backup center；
Second handover module, the job task data backed up for basis, by the job task at the main center
Switch to backup center；
The backup subsystem, it is the data backup system described in any one of claim 7 to 9.
Second handover module, specifically for the synchronous regime according to job task on backup center, to the operation
The task status of task is modified；The job task is continued to run with according to revised task status.
Second handover module, the Partial Jobs task specifically for according to default switchover policy, switching main center
Or whole job tasks.
The system also includes the 3rd handover module,
3rd handover module, for after the trouble shooting at the main center, by the job task from backup
It is anxious to gain main center.
Data back up method and system, main/standby switching method and system described in the embodiment of the present invention, when it is determined that need into
During row backup operation, the incremental data at main center is obtained；Enter row format conversion to the incremental data, so that the data after conversion
Meet the call format of backup center；By the data syn-chronization after the conversion to backup center.Specifically, according to default concurrent
Control strategy, and/or dependence control strategy, and/or Priority Control Strategies, and/or maximum backup interval, judge whether to need
Carry out backup operation.Using the scheme described in the embodiment of the present invention, data lock in time can be controlled according to actual demand
System, so as to which flexibility ratio is higher, and system resource can be saved；Also, the scheme described in the embodiment of the present invention need not open filing
Pattern, so as under big data processing environment, it is possible to increase system treatment effeciency.
Brief description of the drawings
Fig. 1 is the data back up method schematic flow sheet described in one embodiment of the invention；
Fig. 2 is the data back up method schematic flow sheet described in another embodiment of the present invention；
Fig. 3 is the main/standby switching method method schematic flow sheet described in one embodiment of the invention；
Fig. 4 is the main/standby switching method method schematic flow sheet described in another embodiment of the present invention；
Fig. 5 is the data backup system structural representation described in one embodiment of the invention；
Fig. 6 is the data backup system structural representation described in another embodiment of the present invention；
Fig. 7 is the data backup system structural representation described in yet another embodiment of the invention；
Fig. 8 is the active-standby switch system structure diagram described in one embodiment of the invention；
Fig. 9 is the active-standby switch system structure diagram described in another embodiment of the present invention；
Figure 10 is the data backup schematic flow sheet described in the embodiment of the present invention 1；
Figure 11 is the active-standby switch schematic flow sheet described in the embodiment of the present invention 2.
Embodiment
The present invention basic thought be：When it is determined that needing to carry out backup operation, the incremental data at main center is obtained；To institute
State incremental data and enter row format conversion, so that the data after conversion meet the call format of backup center；After the conversion
Data syn-chronization is to backup center.
Fig. 1 is a kind of data back up method schematic flow sheet of the embodiment of the present invention, as shown in figure 1, this method includes：
Step 11：When it is determined that needing to carry out backup operation, the incremental data at main center is obtained；
Step 12：Enter row format conversion to the incremental data, so that the data after conversion meet the form of backup center
It is required that；
Step 13：By the data syn-chronization after the conversion to backup center.
Optionally, as shown in Fig. 2 also including before step 11：
Step 10：Judge whether to need to carry out backup operation.
Specifically, according to default Analysis of Concurrency Control, and/or control strategy, and/or two priority classes plan can be relied on
Slightly, and/or maximum backup is spaced, and judges whether to need to carry out backup operation.Wherein, Analysis of Concurrency Control realizes more job tasks
Concurrently operation control；Rely on control strategy and realize and is only relied on tasks carrying success, could perform task, support year, the moon,
Week, the dependence period type of day；Priority Control Strategies realize that in the case of task execution condition satisfaction high priority operation is excellent
First obtain and concurrently perform authority, it is preferential to perform.In practical application, it can be carried out to task run main frame and using database concurrent
Virtual quota is set, the concurrency of control task；
Optionally, the incremental data at the main center of acquisition is：According to default acquisition strategy, the part at main center is obtained
Incremental data or whole incremental datas.
Optionally, this method also includes：
Data backup progress is monitored；And corresponding inquiry knot is returned to according to the request of data backup progress queries
Fruit.
It should be noted that in practical application, special backup management module can be set to realize data backup mode pipe
Reason, data backup cycle management and data backup progress queries.Data backup mode, which manages, mainly realizes physical entity backup side
Formula management, including the backup mode based on memory copying and the backup mode based on data basd link；Data backup cycle management bag
Include day backup, week backup, moon backup etc.；Data backup progress queries provide the real-time query ability of data backup progress, convenient
Keeper inquires about backup progress, timely assessment system risk at any time.
The embodiment of the present invention also proposed a kind of main/standby switching method, as shown in figure 3, this method includes：
Step 31：During main central fault, the scheduling relation at the main center and job dependence relation are switched in backup
The heart；
Step 32：According to the job task data backed up, the job task at the main center is switched into backup center,
Wherein, the method shown in the job task datagram 1 or Fig. 2 is backed up.
Optionally, the job task data comprise at least the task status of the main central record, described by main center
Job task switch to backup center, including：
According to the synchronous regime of job task on backup center, the task status of the job task is modified；
The job task is continued to run with according to revised task status.
Optionally, the job task by main center switches to backup center and is：According to default switchover policy, switching
The Partial Jobs task at main center or whole job tasks.
Optionally, as shown in figure 4, this method also includes：
Step 33：After the trouble shooting at main center, the job task is switched back into main center from backup center.
In the embodiment of the present invention, distributing for job task can distribute job task temporally or according to event, support
By year, month, day, when, minute, second, the timed task in week distribute and distribute by the task of event and (support file to reach triggering, task
Complete triggering, mission failure triggering etc.).
The embodiment of the present invention also correspondingly proposes a kind of data backup system, as shown in figure 5, the system includes：Obtain
Module 51, modular converter 52 and synchronization module 53；Wherein,
Acquisition module 51, for when it is determined that needing to carry out backup operation, obtaining the incremental data at main center；Acquisition module
The data at main center are carried out increment extraction by 51 realizations according to certain service logic, and the service logic can realize customization,
Incremental data is customized by keeper and extracts strategy.
Modular converter 52, for entering row format conversion to the incremental data, so that the data after conversion meet in backup
The call format of the heart；
Synchronization module 53, for by the data syn-chronization after the conversion to backup center.Optionally, the basis of synchronization module 53
Default data backup mode, by the data syn-chronization after conversion to backup center, it is necessary to which explanation, in synchronizing process, is needed
The accuracy of synchrodata is checked, record data, which loads daily record, includes the daily record of exception throws.
Optionally, as shown in fig. 6, the system also includes scheduler module 54,
Scheduler module 54, for judging whether to need to carry out backup operation, specifically, according to default con current control plan
Slightly, and/or control strategy, and/or Priority Control Strategies, and/or maximum backup interval are relied on, judge whether to need to carry out standby
Part operation, it is determined that when needing to carry out backup operation, notify acquisition module 51.Performed for example, scheduler module 54 sends data backup
Ask to acquisition module 51, acquisition module 51 receives after the data backup performs request and does real-time response, it is ensured that by main center
The data changed are synchronized to backup center in time.
Scheduler module 54 mainly provide timing data migration Trigger Function, by con current control, and/or rely on control and/
Or two priority classes ensure " in the suitable time by suitable Data Migration to suitable storage medium ", it is ensured that the number at main center
According to being synchronized to backup center in time.
Optionally, acquisition module 51, the Partial Incremental data specifically for according to default acquisition strategy, obtaining main center
Or whole incremental datas.
Optionally, as shown in fig. 7, the system also includes monitoring modular 55,
Monitoring modular 55, returned for being monitored to data backup progress, and according to the request of data backup progress queries
Return corresponding Query Result.
The embodiment of the present invention also proposes a kind of active-standby switch system accordingly, as shown in figure 8, the system includes：First
Handover module 81, the second handover module 82 and backup subsystem 83；Wherein,
First handover module 81, in main central fault, the scheduling relation at the main center and job dependence to be closed
System is switched to backup center；
Second handover module 82, for according to the job task data backed up, the job task at the main center to be cut
Shift to backup center；
Backup subsystem 83, it is the data backup system shown in Fig. 5 to 7 any.
Optionally, the second handover module 82, specifically for the synchronous regime according to job task on backup center, to described
The task status of job task is modified；The job task is continued to run with according to revised task status.Here, second
Handover module 82 needs to link up activity duration point by running the operations such as recovery again, makes times that off-duty is completed on main center
Business can continue to run with the heart in the backup.
Optionally, the second handover module 82, the Partial Jobs specifically for according to default switchover policy, switching main center
Task or whole job tasks.
Optionally, as shown in figure 9, the system also includes the 3rd handover module 84,
3rd handover module 84, for after the trouble shooting at the main center, by the job task from backup center
Switch back into main center.
If it should be noted that the scheme described in the embodiment of the present invention is applied into data warehouse field, can solve the problem that
Mass data backs up and the problem of recovery, in the case of the failure that generation can not recover the short time at the main center of data warehouse,
Backup center can smoothly take over the job task at main center, the stable operation of safeguards system 7*24 hours, effectively protect data
The data assets in warehouse.
Technical scheme is described in further detail below by specific embodiment.
Embodiment 1
Figure 10 is the data backup schematic flow sheet described in the embodiment of the present invention 1, and as shown in Figure 10, the flow includes：
Step 1001：Main center processing generation incremental data；
Step 1002：Main center incremental data generation event triggering scheduler module inquires about the main center to backup management module
Physical entity backup mode.
Step 1003：Backup management module responds backup mode inquiry request, performs inquiry operation；
Step 1004：Return to Query Result；
Step 1005：Scheduler module according to the dependence control strategy of backup mode and backup cycle and job task and/
Or Priority Control Strategies, and/or Analysis of Concurrency Control, trigger backup operation；
Step 1006：Scheduler module sends data synchronization request to data backup system, and the data synchronization request carries standby
Part mode.
Step 1007：The acquisition module response data synchronization request of data backup system, to main center requests incremental data；
Step 1008：Main center returns to incremental data to acquisition module.
Step 1009：The incremental data that modular converter obtains to acquisition module does corresponding form conversion.
Step 1010：Incremental data after the conversion is synchronized in backup by synchronization module according to specified backup mode
The heart.
So far, the flow that main center incremental data backups to backup center terminates.
Embodiment 2
Figure 11 is the active-standby switch schematic flow sheet described in the embodiment of the present invention 2, and as shown in figure 11, the flow includes：
Step 1101：Break down at main center.
Step 1102：The scheduling relation at main center is switched to backup center.
In the present embodiment, the job task scope of switching is system core task.
Step 1103：The job dependence relation at main center is switched to backup center.
Step 1104：Judge whether the job task of backup center runs to current period, if so, switch step terminates；
If it is not, go to step 1105.
Step 1105：The heart reruns the job task in the backup, and supplemental data is to currently.
Step 1106：Switching flow terminates.
The embodiment of the present invention is designed by the High Availabitity of application layer, solves the High Availabitity design requirement of differentiation, is reduced
System Construction cost；Also, the failover flow that the embodiment of the present application proposes, solves the situation of asynchronous data backup
Under, main center is delayed backup center data inconsistence problems caused by machine, scheme described in the embodiment of the present invention and is based on
DATAGUARD Data Replication Technology in Mobile is compared, and efficiency is more preferable in terms of big data processing, in application design level greatly
Improve the ageing of fault recovery.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (13)
1. a kind of data back up method, it is characterised in that this method includes：
It is standby according to default Analysis of Concurrency Control, and/or dependence control strategy, and/or Priority Control Strategies, and/or maximum
Part interval, judge whether to need to carry out backup operation；
When it is determined that needing to carry out backup operation, the incremental data at main center is obtained；
Enter row format conversion to the incremental data, so that the data after conversion meet the call format of backup center；
By the data syn-chronization after the conversion to backup center；
Data backup progress is monitored；Corresponding Query Result is returned to according to the request of data backup progress queries.
2. according to the method for claim 1, it is characterised in that it is described obtain main center incremental data be：According to default
Acquisition strategy, obtain the Partial Incremental data at main center or whole incremental datas.
3. a kind of main/standby switching method, it is characterised in that this method includes：
During main central fault, the scheduling relation at the main center and job dependence relation are switched to backup center；
According to the job task data backed up, the job task at the main center is switched into backup center, wherein, the work
Industry task data is backed up according to the method described in any one of claim 1 to 2.
4. according to the method for claim 3, it is characterised in that the job task data comprise at least the main center note
The task status of record, the job task by main center switch to backup center, including：
According to the synchronous regime of job task on backup center, the task status of the job task is modified；
The job task is continued to run with according to revised task status.
5. the method according to claim 3 or 4, it is characterised in that the job task by main center switches to backup
Center is：
According to default switchover policy, switch the Partial Jobs task at main center or whole job tasks.
6. according to the method for claim 5, it is characterised in that this method also includes：After the trouble shooting at the main center,
The job task is switched back into main center from backup center.
7. a kind of data backup system, it is characterised in that the system includes：Acquisition module, modular converter, synchronization module, scheduling
Module and monitoring modular；Wherein,
The acquisition module, for when it is determined that needing to carry out backup operation, obtaining the incremental data at main center；
The modular converter, for entering row format conversion to the incremental data, so that the data after conversion meet backup center
Call format；
The synchronization module, for by the data syn-chronization after the conversion to backup center；
The scheduler module, for according to default Analysis of Concurrency Control, and/or dependence control strategy, and/or two priority classes
Strategy, and/or maximum backup interval, judge whether to need to carry out backup operation；
The monitoring modular, ask to return for being monitored data backup progress, and according to data backup progress queries
Corresponding Query Result.
8. system according to claim 7, it is characterised in that the system also includes scheduler module, the scheduler module, uses
When it is determined that needing to carry out backup operation, the acquisition module is notified.
9. system according to claim 7, it is characterised in that
The acquisition module, specifically for according to default acquisition strategy, obtaining the Partial Incremental data at main center or all increasing
Measure data.
10. a kind of active-standby switch system, it is characterised in that the system includes：First handover module, the second handover module and backup
Subsystem；Wherein,
First handover module, in main central fault, by the scheduling relation and job dependence relation at the main center
It is switched to backup center；
Second handover module, for according to the job task data backed up, the job task at the main center to be switched
To backup center；
The backup subsystem, it is the data backup system described in any one of claim 7 to 9.
11. system according to claim 10, it is characterised in that
Second handover module, specifically for the synchronous regime according to job task on backup center, to the job task
Task status be modified；The job task is continued to run with according to revised task status.
12. the system according to claim 10 or 11, it is characterised in that
Second handover module, the Partial Jobs task or complete specifically for according to default switchover policy, switching main center
Portion's job task.
13. system according to claim 12, it is characterised in that the system also includes the 3rd handover module,
3rd handover module, for after the trouble shooting at the main center, the job task to be cut from backup center
Gain main center.
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| CN1787665A (en) * | 2004-12-08 | 2006-06-14 | 华为技术有限公司 | Method and apparatus for preventing personal data losing in mobile terminal |
| CN101730297A (en) * | 2008-10-13 | 2010-06-09 | 北京摩软科技有限公司 | Mobile terminal, method and server for realizing data management |
| CN102104471A (en) * | 2009-12-21 | 2011-06-22 | 中兴通讯股份有限公司 | Condition-based main/standby switching method and device in redundancy backup system |
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