CN102412948A - Method and device for realizing high-reliability backup in data oscillation environment - Google Patents
Method and device for realizing high-reliability backup in data oscillation environment Download PDFInfo
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- CN102412948A CN102412948A CN2011103654884A CN201110365488A CN102412948A CN 102412948 A CN102412948 A CN 102412948A CN 2011103654884 A CN2011103654884 A CN 2011103654884A CN 201110365488 A CN201110365488 A CN 201110365488A CN 102412948 A CN102412948 A CN 102412948A
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Abstract
The invention provides a method for realizing high-reliability backup in a data oscillation environment. The method comprises the following steps of: 10, detecting a network environment for incremental backup of a main backup integrated circuit board is in an abnormal data oscillation environment; 20, when a judgment made in the step 10 is negative, continuing incremental backup; 30, when the judgment made in the step 10 is positive, stopping incremental backup, setting the duration of a back off timer, and starting the back off timer; 40, judging whether the back off timer is out of time; 50, when a judgment made in the step 40 is positive, executing initial backup, starting an incremental backup switch, and circulating to the step 10; and 60, when the judgment made in the step 40 is negative, continually waiting for time-out of the back off timer and performing the step 50 after time-out. According to the method and the device, the CPU (Central Processing Unit) occupation rate consumed by data backup on the main integrated circuit board can be lowered, the network service processing capability of the integrated circuit board is increased, the high-reliability performance of a distributed system is enhanced, and the downtime risk is lowered.
Description
Technical field
The present invention relates to the network communications technology field, relate in particular to a kind of implementation method and device that is applicable to the high reliability backup of active and standby integrated circuit board under data concussion environment in the distributed system.
Background technology
The ethernet network of carrier class or military use is very high for the requirement of network reliability.Generally can adopt the equipment of rack, reach the purpose that improves network reliability through distributed system.Wherein the redundancy backup of active and standby integrated circuit board is the important part that the distributed system high reliability realizes.Usually, the redundancy backup of active and standby integrated circuit board is divided into initial back-up and incremental backup in realization.When wherein initial back-up was slave board initialization completion, the mainboard card was with all states and data backup on the main/standby board cards realization state consistency at present; After incremental backup was meant that main/standby board cards is accomplished initial back-up, mainboard was stuck in the running and notifies main/standby board cards with the real-time change of state, and backed item is the status data that upgrades, and is not whole states and data.Main/standby board cards upgrades internal state and data through incremental backup, reaches the purpose with mainboard card state synchronized.
Distributed system based on the state backup; Common way be the mainboard card any state variation all real-time informing to main/standby board cards; No matter how external web environment is, promptly is indifferent to external network data and whether is in the concussion state, to realize active and standby integrated circuit board state consistency.
Yet if system is in the network environment of a data concussion, data on the mainboard card and state are brought in constant renewal in, and the real-time incremental backup data amount of this moment is quite huge.Mainboard is stuck in when handling Network also need generate a large amount of backup messages, mails to main/standby board cards, for the main/standby board cards synchronous regime.But generate and send backup messages and can consume a large amount of cpu resources this moment on the mainboard card, tie up the cpu resource of handling the network concussion, the time lengthening that makes the data concussion; Even can aggravate the network concussion in some cases, until the machine of delaying.So above-mentioned real-time incremental backup in any environment not only can not increase the reliability of system in some cases, can make system fragile more on the contrary.
Therefore, be necessary the implementation method of the high reliability backup under a kind of data concussion environment to be provided and to install to overcome the problems referred to above.
Summary of the invention
The object of the present invention is to provide the implementation method of the high reliability backup under a kind of data concussion environment.
Another object of the present invention is to provide the implement device of the high reliability backup under a kind of data concussion environment, the implementation method of the high reliability backup under the said device application data concussion environment.
Correspondingly, the implementation method of the high reliability backup under a kind of data concussion environment may further comprise the steps:
S10 detects the network environment that active and standby integrated circuit board carries out incremental backup and whether is in unusual data concussion environment;
When S20, S10 are judged as not, proceed incremental backup;
S30, S10 are judged as when being, close incremental backup, and the back off timer duration is set simultaneously, and start back off timer;
S40 judges whether back off timer is overtime;
S50, S40 are judged as when being, carry out initial back-up, and open the incremental backup switch, are circulated to the S10 step then;
When S60, S40 are judged as not, continue to wait for that back off timer is overtime and after overtime, carry out the S50 step.
As further improvement of the present invention, said S10 specifically may further comprise the steps:
S101, statistical unit is carried out the backup data quantity of incremental backup in the time;
S102 judges that backup data quantity among the S101 is whether greater than the threshold value of backup data quantity;
S103 is if whether the number of times that handled in the unit interval in the sensitive data source when then detecting active and standby integrated circuit board incremental backup is greater than the threshold value of this number of times.
As further improvement of the present invention, any step of said S101 and S103 all is circulated to the S20 step when being judged as not.
As further improvement of the present invention, the duration of back off timer equals initial duration and multiply by Nth power second of 2 among the said S30, and wherein this N is continuously overtime number of times.
As further improvement of the present invention, said S20 specifically comprises the steps:
Whether S201 detects the incremental backup switch and closes;
When S202, S201 are judged as not, proceed incremental backup;
S203, S201 are judged as when being, detect carry out incremental backup data volume whether less than recovering threshold value, if less than then being circulated to said S50 step, if greater than end process then.
As further improvement of the present invention, the implement device of the high reliability backup under a kind of data concussion environment comprises:
Detecting unit is used to detect the network environment that active and standby integrated circuit board carries out incremental backup and whether is in unusual data concussion environment;
First performance element is used for when detecting unit is judged as not, proceeding incremental backup;
Second performance element comprises a back off timer, is used for being judged as when being at detecting unit, closes incremental backup, and the back off timer duration is set simultaneously, starts back off timer;
First judging unit is used to judge whether back off timer is overtime;
The 3rd performance element is used in first judgment unit judges carrying out initial back-up, and after executing initial back-up, opening the incremental backup switch, simultaneously the detection starting unit when being;
The 4th performance element is used in first judgment unit judges for not the time, continues to wait for that back off timer is overtime and start above-mentioned the 3rd performance element in overtime back.
As further improvement of the present invention, the detection that said detecting unit carries out network environment mainly is used for:
Statistical unit is carried out the backup data quantity of incremental backup in the time;
Judge that this backup data quantity is whether greater than the threshold value of backup data quantity;
Be judged as when being, whether the number of times that handled in the unit interval in the sensitive data source when detecting active and standby integrated circuit board incremental backup is greater than the threshold value of this number of times.
As further improvement of the present invention, in the said detecting unit two in judging or detecting any one all start first performance element when being judged as not.
As further improvement of the present invention, the duration of back off timer equals initial duration and multiply by Nth power second of 2 in said second performance element, and wherein this N is continuously overtime number of times.
As further improvement of the present invention, said first performance element also is used for:
Be judged as when being, detect carry out incremental backup data volume whether less than recovering threshold value, if then start the 3rd performance element, if greater than recovering then end process of threshold value less than recovering threshold value.
The invention has the beneficial effects as follows: through under network data concussion environment, be in due course and utilize initial back-up to replace incremental backup, reduce the CPU usage that Backup Data consumed on the mainboard card, improve the ability that the mainboard card is handled Network; Simultaneously, guaranteed also in most cases that the state of active and standby integrated circuit board is to be state synchronized all the time, improved the high reliability performance of distributed system, reduced the machine risk of delaying.
Description of drawings
Fig. 1 is the flow chart of the implementation method of the high reliability backup under the embodiment of the invention data concussion environment;
Fig. 2 is the concrete process chart of S10 among Fig. 1;
Fig. 3 is the module map of the implement device of the high reliability backup under the embodiment of the invention data concussion environment.
Embodiment
Below will combine each execution mode shown in the drawings to describe the present invention.But these execution modes do not limit the present invention, and the conversion on the structure that those of ordinary skill in the art makes according to these execution modes, method or the function all is included in protection scope of the present invention.
Seeing also shown in Figure 1 is the flow chart of the implementation method that backs up of embodiment of the invention data concussion environment high reliability down; Wherein this implementation method mainly comprises two aspects: one is the detection to data concussion environment; The 2nd, after the network data concussion, the backup flow process between active and standby integrated circuit board.
Wherein said here data concussion environment must satisfy two big characteristics, and the one, cpu busy percentage sharply rises, and the deal with data amount significantly increases, if adopt real-time incremental backup between active and standby integrated circuit board, then Backup Data can significantly increase; The 2nd, repeatedly handle repeating data in the unit interval.With ospf protocol (Open Shortest Path First, open shortest path priority protocol) is example, and when UP/DOWN that certain physical port does not stop, UP causes OSPF to calculate 1000 OSPF routes, and DOWN causes these 1000 OSPF routes of OSPF deletion.Repeatedly handle the specific OSPF route of certain bar in unit interval, and the deal with data amount is huge, this situation is exactly typical data concussion environment.
Shown in Figure 1 in conjunction with this, this implementation method mainly comprises the steps:
S10 detects the network environment that active and standby integrated circuit board carries out incremental backup and whether is in unusual data concussion environment;
When S20, S10 are judged as not, proceed incremental backup;
S30, S10 are judged as when being, close incremental backup, and the back off timer duration is set simultaneously, and start back off timer; The account form of penalty mechanism is adopted in the calculating of the duration of back off timer among the wherein said S30; Multiply by Nth power second of 2 for the initial duration of back off timer; Wherein this N is continuously overtime number of times; Like this, can in long data concussion environment, reduce the number of times of initial back-up, enhanced system is handled the ability of Network concussion;
S40 judges whether back off timer is overtime;
S50, S40 are judged as when being, carry out initial back-up, and open the incremental backup switch, are circulated to the S10 step then;
When S60, S40 are judged as not, continue to wait for that back off timer is overtime and after overtime, carry out the S50 step.
See also shown in Figure 2ly, and combine above-mentioned data concussion environment measuring prerequisite two big characteristics to get, said S10 specifically may further comprise the steps:
S101, statistical unit is carried out the backup data quantity of incremental backup in the time;
S102 judges that backup data quantity among the S101 is whether greater than the threshold value of backup data quantity; Suppose that distributed system is under the network typical application; The average amount of incremental backup is A bar/second between active and standby integrated circuit board; The incremental backup maximum amount of data is a B bar per second, so, and when incremental backup data amount between the active and standby integrated circuit board of system during greater than (A+2B)/3 per second; Think that then the system backup data volume is excessive, satisfy one of data concussion environmental condition; This (A+2B)/3 per second is the threshold value of backup data quantity;
S103 is if whether the number of times that handled in the unit interval in the sensitive data source when then detecting active and standby integrated circuit board incremental backup is greater than the threshold value of this number of times; Mainly be in system, to preestablish the sensitive data source, in above-mentioned example, the OSPF route entry is the sensitive data source; When active and standby integrated circuit board carries out incremental backup, add up the number of times of handling in the identical sensitive data source unit interval,, then think and satisfy data concussion environment another one condition if greater than threshold value; This threshold value is maximum number of times of handling in the sensitive data source unit interval that is provided with in advance.
This shows that said S101 and S103 step are carried out the detection of data volume respectively and the detection of sensitive data source unit interval number of processes is two necessary conditions that define of data concussion environment, when any step is judged as not, all are circulated to the S20 step.
Please combine shown in Figure 1ly, said S20 specifically comprises the steps:
Whether S201 detects the incremental backup switch and closes;
When S202, S201 are judged as not, proceed incremental backup;
S203, S201 are judged as when being, detect carry out incremental backup data volume whether less than recovering threshold value, if less than then being circulated to said S50 step, if greater than end process then.
Above data concussion environment down the implementation method of high reliability backup promptly can be regarded as: in the actual treatment, when network environment is normal, the incremental backup mechanism between active and standby integrated circuit board adopts the method for real-time incremental backup; Unusual when network, data concussions is arranged, and the data volume of incremental backup is greater than threshold value in real time, during the per second of (A+2B)/3 of being said above promptly, the mainboard card stops real-time incremental backup, starts back off timer; After back off timer was overtime, the mainboard card was taked the mode of initial back-up, all current states are backuped to main/standby board cards after; Detect current incremental backup data amount,, and satisfy two necessary conditions of above-mentioned data concussion environment if still greater than the data volume threshold value of incremental backup; Promptly still be under the concussion environment; Then continue to stop real-time incremental backup, recomputate the back off timer duration, wait for next time and carry out initial back-up again after overtime.
Seeing also shown in Figure 3 is the module map of the implement device that backs up of data concussion environment of the present invention high reliability down.Can find out that this device comprises:
Detecting unit is used to detect the network environment that active and standby integrated circuit board carries out incremental backup and whether is in unusual data concussion environment;
First performance element is used for when detecting unit is judged as not, proceeding incremental backup;
Second performance element comprises a back off timer, is used for being judged as when being at detecting unit, closes incremental backup, and the back off timer duration is set simultaneously, starts back off timer; The account form of penalty mechanism is adopted in the calculating of the duration of wherein said back off timer; Multiply by Nth power second of 2 for the initial duration of back off timer; Wherein this N is continuously overtime number of times; Like this, can in long data concussion environment, reduce the number of times of initial back-up, enhanced system is handled the ability of Network concussion;
First judging unit is used to judge whether back off timer is overtime;
The 3rd performance element is used in first judgment unit judges carrying out initial back-up, and after executing initial back-up, opening the incremental backup switch when being, and the detection starting unit;
The 4th performance element is used in first judgment unit judges for not the time, continues to wait for that back off timer is overtime and start above-mentioned the 3rd performance element in overtime back.
The detection that said detecting unit carries out network environment mainly is used for: at first statistical unit is carried out the backup data quantity of incremental backup in the time; Judge that this backup data quantity whether greater than the threshold value of backup data quantity, supposes distributed system under the network typical application, the average amount of incremental backup is an A bar per second between active and standby integrated circuit board; The incremental backup maximum amount of data is a B bar per second; So, when incremental backup data amount between the active and standby integrated circuit board of system during, think that then the system backup data volume is excessive greater than (A+2B)/3 per second; Promptly satisfy one of data concussion environmental condition, be somebody's turn to do the threshold value that (A+2B)/3 per second is backup data quantity; Be judged as when being; Whether the number of times that handled in the unit interval in the sensitive data source when detecting active and standby integrated circuit board incremental backup then is greater than the threshold value of this number of times; Mainly be in system, to preestablish the sensitive data source, in above-mentioned example, the OSPF route entry is the sensitive data source; When active and standby integrated circuit board carries out incremental backup, add up the number of times of handling in the identical sensitive data source unit interval,, then think and satisfy data concussion environment another one condition if greater than threshold value; This threshold value is maximum number of times of handling in the sensitive data source unit interval that is provided with in advance.Judge or detect two necessary conditions for data concussion environment for two in the said detecting unit, wherein any one is judged as and all starts first performance element when denying.
Whether said first performance element also is used for: detect the incremental backup switch and close; When being judged as not, proceed incremental backup; Be judged as when being, detect carry out incremental backup data volume whether less than recovering threshold value, if then start the 3rd performance element, if greater than recovering then end process of threshold value less than recovering threshold value.
In sum; The implementation method of the high reliability backup under the data concussion environment of the present invention or device are through under network data concussion environment; Be in due course and utilize initial back-up to replace incremental backup; Reduce the CPU usage that Backup Data consumed on the mainboard card, improve the ability that the mainboard card is handled Network; Simultaneously, guaranteed also in most cases that the state of active and standby integrated circuit board is to be state synchronized all the time, improved the high reliability performance of distributed system, reduced the machine risk of delaying.
For the convenience of describing, be divided into various unit with function when describing above the device and describe respectively.Certainly, when implementing the application, can in same or a plurality of softwares and/or hardware, realize the function of each unit.
Description through above execution mode can know, those skilled in the art can be well understood to the application and can realize by the mode that software adds essential general hardware platform.Based on such understanding; The part that the application's technical scheme contributes to prior art in essence in other words can be come out with the embodied of software product; This computer software product can be stored in the storage medium, like ROM/RAM, magnetic disc, CD etc., comprises that some instructions are with so that a computer equipment (can be a personal computer; Server, the perhaps network equipment etc.) carry out the described method of some part of each execution mode of the application or execution mode.
Device embodiments described above only is schematic; Wherein said unit as the separating component explanation can or can not be physically to separate also; The parts that show as the unit can be or can not be physical locations also; Promptly can be positioned at a place, perhaps also can be distributed on a plurality of NEs.Can realize the purpose of this execution mode scheme according to the needs selection some or all of module wherein of reality.Those of ordinary skills promptly can understand and implement under the situation of not paying creative work.
The application can be used for numerous general or special purpose computingasystem environment or configuration, or in the communication equipment.For example: personal computer, server computer, handheld device or portable set, plate equipment, multicomputer system, the system based on microprocessor, set top box, programmable consumer-elcetronics devices, network PC, minicom, mainframe computer, comprise DCE of above any system or equipment or the like.
The application can describe in the general context of the computer executable instructions of being carried out by computer, for example program module.Usually, program module comprises the routine carrying out particular task or realize particular abstract, program, object, assembly, data structure or the like.Also can in DCE, put into practice the application, in these DCEs, by through communication network connected teleprocessing equipment execute the task.In DCE, program module can be arranged in this locality and the remote computer storage medium that comprises memory device.
Be to be understood that; Though this specification is described according to execution mode; But be not that each execution mode only comprises an independently technical scheme, this narrating mode of specification only is for clarity sake, and those skilled in the art should make specification as a whole; Technical scheme in each execution mode also can form other execution modes that it will be appreciated by those skilled in the art that through appropriate combination.
The listed a series of detailed description of preceding text only is specifying to feasibility execution mode of the present invention; They are not in order to restriction protection scope of the present invention, allly do not break away from equivalent execution mode or the change that skill of the present invention spirit done and all should be included within protection scope of the present invention.
Claims (10)
1. data are shaken the implementation method that the high reliability under the environment backs up, and it is characterized in that, may further comprise the steps:
S10 detects the network environment that active and standby integrated circuit board carries out incremental backup and whether is in unusual data concussion environment;
When S20, S10 are judged as not, proceed incremental backup;
S30, S10 are judged as when being, close incremental backup, and the back off timer duration is set simultaneously, and start back off timer;
S40 judges whether back off timer is overtime;
S50, S40 are judged as when being, carry out initial back-up, and open the incremental backup switch, are circulated to the S10 step then;
When S60, S40 are judged as not, continue to wait for that back off timer is overtime and after overtime, carry out the S50 step.
2. the implementation method of the high reliability backup under the data concussion environment according to claim 1 is characterized in that said S10 specifically may further comprise the steps:
S101, statistical unit is carried out the backup data quantity of incremental backup in the time;
S102 judges that backup data quantity among the S101 is whether greater than the threshold value of backup data quantity;
S103 is if whether the number of times that handled in the unit interval in the sensitive data source when then detecting active and standby integrated circuit board incremental backup is greater than the threshold value of this number of times.
3. the implementation method of the high reliability backup under the data concussion environment according to claim 2 is characterized in that, any step of said S101 and S103 all is circulated to the S20 step when being judged as not.
4. the implementation method of data according to claim 1 concussion environment high reliability backup down is characterized in that, the duration of back off timer equals initial duration and multiply by Nth power second of 2 among the said S30, and wherein this N is continuous overtime number of times.
5. the implementation method of the high reliability backup under the data concussion environment according to claim 1 is characterized in that said S20 specifically comprises the steps:
Whether S201 detects the incremental backup switch and closes;
When S202, S201 are judged as not, proceed incremental backup;
S203, S201 are judged as when being, detect carry out incremental backup data volume whether less than recovering threshold value, if less than then being circulated to said S50 step, if greater than end process then.
6. data are shaken the implement device of the high reliability backup under the environment, it is characterized in that, comprising:
Detecting unit is used to detect the network environment that active and standby integrated circuit board carries out incremental backup and whether is in unusual data concussion environment;
First performance element is used for when detecting unit is judged as not, proceeding incremental backup;
Second performance element comprises a back off timer, is used for being judged as when being at detecting unit, closes incremental backup, and the back off timer duration is set simultaneously, starts back off timer;
First judging unit is used to judge whether back off timer is overtime;
The 3rd performance element is used in first judgment unit judges carrying out initial back-up, and after executing initial back-up, opening the incremental backup switch, simultaneously the detection starting unit when being;
The 4th performance element is used in first judgment unit judges for not the time, continues to wait for that back off timer is overtime and start above-mentioned the 3rd performance element in overtime back.
7. the implement device of the high reliability backup under the data concussion environment according to claim 6 is characterized in that the detection that said detecting unit carries out network environment mainly is used for:
Statistical unit is carried out the backup data quantity of incremental backup in the time;
Judge that this backup data quantity is whether greater than the threshold value of backup data quantity;
Be judged as when being, whether the number of times that handled in the unit interval in the sensitive data source when detecting active and standby integrated circuit board incremental backup is greater than the threshold value of this number of times.
8. the implement device of data according to claim 7 concussion environment high reliability backup down is characterized in that, in the said detecting unit two in judging or detecting any one be judged as and all start first performance element when denying.
9. the implement device of data according to claim 6 concussion environment high reliability backup down is characterized in that, the duration of back off timer equals initial duration and multiply by Nth power second of 2 in said second performance element, and wherein this N is continuous overtime number of times.
10. the implement device of the high reliability backup under the data concussion environment according to claim 6 is characterized in that said first performance element also is used for:
Whether detect the incremental backup switch closes;
When being judged as not, proceed incremental backup;
Be judged as when being, detect carry out incremental backup data volume whether less than recovering threshold value, if then start the 3rd performance element, if greater than recovering then end process of threshold value less than recovering threshold value.
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| CN2011103654884A CN102412948A (en) | 2011-11-17 | 2011-11-17 | Method and device for realizing high-reliability backup in data oscillation environment |
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| CN2011103654884A CN102412948A (en) | 2011-11-17 | 2011-11-17 | Method and device for realizing high-reliability backup in data oscillation environment |
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| CN102739442A (en) * | 2012-06-06 | 2012-10-17 | 中兴通讯股份有限公司 | Method and system for carrying out software updating on equipment |
| CN103001810A (en) * | 2012-12-26 | 2013-03-27 | 盛科网络（苏州）有限公司 | Method and system for switching network traffic channel protection |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102739442A (en) * | 2012-06-06 | 2012-10-17 | 中兴通讯股份有限公司 | Method and system for carrying out software updating on equipment |
| CN102739442B (en) * | 2012-06-06 | 2018-07-31 | 中兴通讯股份有限公司 | A kind of method and system carrying out software upgrading to equipment |
| CN103001810A (en) * | 2012-12-26 | 2013-03-27 | 盛科网络（苏州）有限公司 | Method and system for switching network traffic channel protection |
| CN103001810B (en) * | 2012-12-26 | 2015-12-23 | 盛科网络（苏州）有限公司 | Network path protection changing method and system |
| CN104460585A (en) * | 2014-10-17 | 2015-03-25 | 上海无线电设备研究所 | Method for achieving high-reliability Modbus communication on TCP/IP network |
| CN104460585B (en) * | 2014-10-17 | 2017-01-11 | 上海无线电设备研究所 | Method for achieving high-reliability Modbus communication on TCP/IP network |
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Application publication date: 20120411 |