CN102684929A - Dual-computer hot redundancy back-up method and dual-computer hot redundancy back-up system - Google Patents
Dual-computer hot redundancy back-up method and dual-computer hot redundancy back-up system Download PDFInfo
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Abstract
An embodiment of the invention discloses a dual-computer hot redundancy back-up method and a dual-computer hot redundancy back-up system. The dual-computer hot redundancy back-up method comprises the steps: a second server defaulted as a slave device monitors the working state of dual-computer hot redundancy back up through a heartbeat package channel between the second server and a first server defaulted as a main device; and if the working state is stoppage, the second server is shifted to be the main device. The hardware configuration is simple, and the network transmission flow can be decreased only through one heartbeat package channel. In the embodiment scheme, one device is defaulted as the main device, and the other device is defaulted as the slave device. When the main device breaks down, the time interval of fault detection is short, the efficiency is high, and compared with about 10 seconds by means of the existing technical scheme, the fault detection work only needs about 3 seconds by means of the method.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of dual-locomotive heat redundancy backup method and system.
Background technology
At mega project, especially some high-end users now, like industries such as electric power, subway, public security, require software and hardware zero failure to occur, and operation in 7X24 hour.Therefore the reliability of software and hardware is the emphasis that the user pays close attention to always.In order to improve reliability, the software and hardware redundancy backup is the preferred version that mega project guarantees reliability always.This scheme can not break down based on customer requirements software and hardware long-play, even fault is arranged, and can between master-slave equipment, realize rapidly switching fast, reduces fault time as far as possible.
Present dual-locomotive heat redundancy backup scheme, as shown in Figure 1, comprising: two servers 1 and server 2 that are used to move hot redundancy services, server 1 can be communicated by letter with client with server 2 and is connected.Have two heartbeat packet passages (heartbeat packet passage 1 and heartbeat packet passage 2) and a data passages between server 1 and the server 2, the realization of concrete redundancy backup is following:
Whom server 1 decides as main equipment with server 2 through the preemptive type mode; The service of client is intercepted in two all ports havings of equipment room (socket); There are two heartbeat packet passages to survey between two equipment and judge whether the opposite end is in normal operating conditions; Two servers are peer end of the connection and initiatively send heartbeat packet and give the opposite end initiatively all, if do not receive the answer of opposite end, then definite opposite end fault also switches to main equipment with self.Above-mentioned two heartbeat packet passages can also can be distributed on the different network interface cards on a network interface card.When the existing fault of one of them server, for example: the main process equipment fault.Slave unit sends heartbeat packet can not receive equipment to main equipment answer through the heartbeat packet passage; Then confirm master-failure; Slave unit can be destroyed heartbeat packet passage socket; Can also destroy data channel socket, create socket then again and intercept to bring in and receive opposite end data channel socket and connect.
Adopt as above scheme, two heartbeat packet passages are all transmitting and receive data, and offered load and program load are bigger.Because as above in this scheme, the data that client produces all are to be kept in the server,, and then be read into client then from a station server another server that fetches data.Because this data backup time is long, if in backup procedure server failure, can cause data accuracy more can't ensure.Therefore adopt that as above scheme offered load and program load are bigger, and data accuracy is relatively poor.
Summary of the invention
The embodiment of the invention provides a kind of dual-locomotive heat redundancy backup method and system, is used to reduce offered load and program load, promotes data accuracy.
A kind of dual-locomotive heat redundancy backup method comprises:
The second server that is defaulted as slave unit through and be defaulted as the heartbeat packet passage between first server of main equipment, the operating state of monitoring dual-locomotive heat redundancy backup;
If said operating state is a fault, then said second server switches to main equipment.
Preferably, the operating state of monitoring dual-locomotive heat redundancy backup comprises:
Whether monitoring can receive heartbeat packet from said heartbeat packet passage, confirms that then operating state is a fault if can not receive heartbeat packet.
Preferably, said heartbeat packet passage is set up by second server; Create the port snooping service end by first server;
Second server receives the heartbeat packet that first server initiatively sends, and after receiving heartbeat packet, sends corresponding with it answer.
Preferably,, definite said operating state also comprises after being fault:
Said second server is set up the fault inquiry connectivity port, is used for initiating incessantly and being connected of first server, and confirms in view of the above whether first server recovers normal;
If it is normal that first server recovers, second server switches to slave unit.
Preferably, the client that client that said first server connects with it and second server connect with it all adopts data link layer communication to connect.
A kind of dual-locomotive heat redundancy backup system comprises:
Be defaulted as first server of main equipment and the second server that is defaulted as slave unit;
Said second server, be used for through and first server between the heartbeat packet passage, the operating state of monitoring dual-locomotive heat redundancy backup; If said operating state is a fault, then said second server switches to main equipment.
Preferably, said second server, the operating state that is used to monitor the dual-locomotive heat redundancy backup comprises: be used for monitoring and whether can receive heartbeat packet from said heartbeat packet passage, confirm that then operating state is a fault if can not receive heartbeat packet.
Preferably, said heartbeat packet passage is set up by second server; Create the port snooping service end by first server;
Said first server is used for initiatively sending heartbeat packet to second server through said heartbeat packet passage;
Said second server is used to receive the heartbeat packet that first server initiatively sends, and after receiving heartbeat packet, sends corresponding with it answer.
Preferably, said second server also is used for after definite said operating state is fault, setting up the fault inquiry connectivity port, is used for initiating incessantly and being connected of first server, and confirms in view of the above whether first server recovers normal; If it is normal that first server recovers, second server switches to slave unit.
Preferably, the client that client that said first server connects with it and second server connect with it all adopts data link layer communication to connect.
Can find out that from above technical scheme the embodiment of the invention has the following advantages: Hardware configuration is simple, only needs a heartbeat packet passage, reduces the Network Transmission flow.Equipment of embodiment of the invention scheme acquiescence is main equipment, and another equipment is slave unit, when main equipment breaks down; Detection failure is shorter off time; Efficient is higher, in the background technology in the scheme about 10 seconds, and embodiment of the invention scheme only needs about 3 seconds.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention; The accompanying drawing of required use is briefly introduced in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skill in the art; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a prior art dual-locomotive heat redundancy backup scheme system configuration sketch map;
Fig. 2 is an embodiment of the invention method flow sketch map;
Fig. 3 is an embodiment of the invention system configuration sketch map;
Fig. 4 is the smooth sketch map of another method of the embodiment of the invention.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that the present invention is done to describe in detail further below, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making all other embodiment that obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
The embodiment of the invention provides a kind of dual-locomotive heat redundancy backup method, and is as shown in Figure 2, comprising:
201: the second server that is defaulted as slave unit through and be defaulted as the heartbeat packet passage between first server of main equipment, the operating state of monitoring dual-locomotive heat redundancy backup;
Preferably, the operating state of above-mentioned monitoring dual-locomotive heat redundancy backup comprises: whether monitoring can receive heartbeat packet from above-mentioned heartbeat packet passage, confirms that then operating state is a fault if can not receive heartbeat packet.
If adopt the scheme of above-mentioned heartbeat packet monitoring, so preferably, above-mentioned heartbeat packet passage is set up by second server; Create the port snooping service end by first server; Second server receives the heartbeat packet that first server initiatively sends, and after receiving heartbeat packet, sends corresponding with it answer.
202: if above-mentioned operating state is a fault, then above-mentioned second server switches to main equipment.
Adopt embodiment of the invention scheme, Hardware configuration is simple, only needs a heartbeat packet passage, reduces the Network Transmission flow.Scheme in the background technology; Equipment of embodiment of the invention scheme acquiescence is main equipment, and another equipment is slave unit, when main equipment breaks down; Detection failure is shorter off time; Efficient is higher, in the background technology in the scheme about 10 seconds, and embodiment of the invention scheme only needs about 3 seconds.
It will be appreciated by persons skilled in the art that if above-mentioned operating state for normal, is explained to belong to normal operation under the work at present state so, need not carry out the principal and subordinate and switch.
The embodiment of the invention also provides at main equipment recovers the implementation that normal second equipment later on switches back main equipment again; Particularly; Such scheme also comprises after definite above-mentioned operating state is fault: above-mentioned second server is set up the fault inquiry connectivity port; Be used for initiating incessantly and being connected of first server, and confirm in view of the above whether first server recovers normal; If it is normal that first server recovers, second server switches to slave unit.
The embodiment of the invention also provides the scheme of further lifting data accuracy, as follows: and the client that client that above-mentioned first server connects with it and second server connect with it, all adopt data link layer communication to connect.Concrete data are sent in the subsequent implementation example will provide detailed description.(Data Link Layer, dll) customer data is transmitted in communication in real time, need not generate fixed disk file to data and transmit on the hard disk file then to another equipment, so data correctness is secure to adopt data link layer.
The embodiment of the invention also provides a kind of dual-locomotive heat redundancy backup system, and is as shown in Figure 3, comprising:
Be defaulted as first server 301 of main equipment and the second server 302 that is defaulted as slave unit;
Above-mentioned second server 302, be used for through and first server 301 between the heartbeat packet passage, the operating state of monitoring dual-locomotive heat redundancy backup; If above-mentioned operating state is a fault, then above-mentioned second server 302 switches to main equipment.
Preferably, above-mentioned second server 302, the operating state that is used to monitor the dual-locomotive heat redundancy backup comprises: be used for monitoring and whether can receive heartbeat packet from above-mentioned heartbeat packet passage, confirm that then operating state is a fault if can not receive heartbeat packet.
Preferably, above-mentioned heartbeat packet passage is set up by second server 302; Create the port snooping service end by first server 301;
Above-mentioned first server 301 is used for initiatively sending heartbeat packet to second server 302 through above-mentioned heartbeat packet passage;
Above-mentioned second server 302 is used to receive the heartbeat packet that first server 301 initiatively sends, and after receiving heartbeat packet, sends corresponding with it answer.
Further, above-mentioned second server 302 also is used for after definite above-mentioned operating state is fault, setting up the fault inquiry connectivity port, is used for initiating incessantly and being connected of first server 301, and confirms in view of the above whether first server 301 recovers normal; If first server 301 recovers normal, second server 302 switches to slave unit.
Preferably, the client that client that above-mentioned first server 301 connects with it and second server 302 connect with it all adopts data link layer communication to connect.
The two-server of the embodiment of the invention is all installed hot redundancy services program; Two-server all adopt data link layer (Data Link Layer, DLL) communication link connects client-side program, the acquiescence by main equipment work; Receive the CLIENT PROGRAM real time data and be delivered to corresponding client program on the slave unit; Concerning the user, CLIENT PROGRAM is arranged on the station server all the time in work, do not influence user's normal running.
It is main equipment that embodiment of the invention scheme is given tacit consent to a server platform, and another station server is a slave unit, uses a network interface card to establish a communications link.Create socket by the main equipment of acquiescence and intercept service end, connect main equipment by slave unit and produce a heartbeat packet passage.Main equipment initiatively sends heartbeat packet to slave unit through the heartbeat packet passage, and receives the corresponding answer of slave unit.
When breaking down, for example master-failure or network failure can cause slave unit not receive heartbeat packet at the utmost point in the short time, and slave unit then can be confirmed master-failure in view of the above.Slave unit can produce a fault inquiry and connect socket after confirming master-failure, comes constantly to connect main equipment, and with the role who self switches to main equipment.After main equipment recovered normally, slave unit just can be connected to main equipment and can confirm in view of the above that main equipment has recovered normal in the extremely short time; At this moment, slave unit reverts to the role of slave unit.The embodiment of the invention only need be set up a heartbeat packet passage and a data passages, need not create socket and intercept service end, and the switch failure time is short, and relatively the background technology scheme reduces about 3 seconds about the time from 10 seconds.
In the embodiment of the invention, the data that client produces can all adopt data link layer, and (Data Link Layer, DLL) communication is delivered to the client on the opposite equip. in real time, and sends the data validation bag by the opposite end client.In background technology, customer data is preserved data earlier to local hard drive, is delivered to the opposite end again, has save the risk that is saved in the time on the hard disk and has avoided hard disk to break down, and therefore aspect data accuracy, guarantee has been arranged.
Seeing also Fig. 4, and can consult Fig. 3 in the lump, is the workflow sketch map of the embodiment of the invention, and it comprises the steps:
401: after the hot redundancy services of default master end starts, be set to main equipment, create service end, and the virtual Internet agreement is set, and (main equipment be an operating state for Internet Protocol, IP) address.Receive the connection of the hot redundancy services of slave unit, and receive the monitoring program real time data, get into 403.
402: after the redundancy services of acquiescence slave unit end heat starts, if confirm that main equipment is in running order, Connection Service end and create heartbeat passage and data channel then, slave unit is defaulted as idle condition.Do not have startup if confirm main equipment; Whether virtual ip address then is set, and slave unit is an operating state, and produce the inquiry passage and survey the hot redundancy services of main equipment and start; If main equipment starts; Then the slave unit of this acquiescence automatically switches to the state of slave unit, if because network reason or equipment when machine, outage, operating system is restarted and/or problem such as hot redundancy services collapse, gets into 410.
403: the main equipment end judges whether the hot redundancy services of opposite end and corresponding monitoring program start, and does not start then notifies main equipment end CLIENT PROGRAM if, and gets into 404, if start, then gets into 405.
404: not online if the CLIENT PROGRAM of main equipment end is confirmed the opposite end CLIENT PROGRAM, do not do any operation.
405: main equipment is delivered to the hot redundancy services in opposite end through data transmission channel with it after receiving customer data, and adopts DLL communication to send to the corresponding client program by the hot redundancy services in opposite end, gets into 406.
406: after the corresponding client program receives customer data, reply and confirm to wrap hot redundancy services, get into 407 to the opposite end.
407: the hot redundancy services in opposite end is transferred to the hot redundancy services of local terminal through data channel with above-mentioned customer data, gets into 408.
408: main equipment is forwarded to the local terminal CLIENT PROGRAM with the customer data that receives.
409: if two equipment rooms are because the hot redundancy services on network reason or the equipment can not be communicated with when machine or system closing or device powers down, then two equipment all can oneself be set to main equipment, and virtual ip address is set.Its actual conditions are to have an equipment that normal work is being provided.
410: because current two equipment are all in running order, after main equipment started, slave unit was created heartbeat packet passage and data channel again.Can avoid like this because the principal and subordinate is switched the between-failures that is caused.
The dual-locomotive heat redundancy backup is widely used, for example: in the vwas6.0 project, be used for three important services in hot backup 6.0 projects: vwas master's service, vwas resource service and in the control service., other software product ranks of company all can use under needing the situation of hot backup in addition.The concrete application of dual-locomotive heat redundancy backup also has a lot, and the embodiment of the invention can't be exhaustive to this, more than should not be construed as qualification for example to embodiment of the invention range of application.
Adopt embodiment of the invention scheme, Hardware configuration is simple, only needs a heartbeat packet passage, reduces the Network Transmission flow.Adopt DLL communication to transmit customer data in real time, need not generate fixed disk file to data and transmit on the hard disk file then, so data correctness is secure to another equipment.Scheme in the background technology; Equipment of embodiment of the invention scheme acquiescence is main equipment, and another equipment is slave unit, when main equipment breaks down; Detection failure is shorter off time; Efficient is higher, in the background technology in the scheme about 10 seconds, and embodiment of the invention scheme only needs about 3 seconds.
One of ordinary skill in the art will appreciate that all or part of step that realizes among above-mentioned each method embodiment is to instruct relevant hardware to accomplish through program; Corresponding program can be stored in a kind of computer-readable recording medium; The above-mentioned storage medium of mentioning can be a read-only memory, disk or CD etc.
More than be merely the preferable embodiment of the present invention; But protection scope of the present invention is not limited thereto; Any technical staff who is familiar with the present technique field is in the technical scope that the embodiment of the invention discloses, and the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (10)
1. a dual-locomotive heat redundancy backup method is characterized in that, comprising:
The second server that is defaulted as slave unit through and be defaulted as the heartbeat packet passage between first server of main equipment, the operating state of monitoring dual-locomotive heat redundancy backup;
If said operating state is a fault, then said second server switches to main equipment.
2. according to the said method of claim 1, it is characterized in that the operating state of monitoring dual-locomotive heat redundancy backup comprises:
Whether monitoring can receive heartbeat packet from said heartbeat packet passage, confirms that then operating state is a fault if can not receive heartbeat packet.
3. according to the said method of claim 2, it is characterized in that said heartbeat packet passage is set up by second server; Create the port snooping service end by first server;
Second server receives the heartbeat packet that first server initiatively sends, and after receiving heartbeat packet, sends corresponding with it answer.
4. according to the said method of claim 1, it is characterized in that, after definite said operating state is fault, also comprise:
Said second server is set up the fault inquiry connectivity port, is used for initiating incessantly and being connected of first server, and confirms in view of the above whether first server recovers normal;
If it is normal that first server recovers, second server switches to slave unit.
5. according to any said method of claim 1 to 4, it is characterized in that the client that client that said first server connects with it and second server connect with it all adopts data link layer communication to connect.
6. a dual-locomotive heat redundancy backup system is characterized in that, comprising:
Be defaulted as first server of main equipment and the second server that is defaulted as slave unit;
Said second server, be used for through and first server between the heartbeat packet passage, the operating state of monitoring dual-locomotive heat redundancy backup; If said operating state is a fault, then said second server switches to main equipment.
7. according to the said system of claim 6, it is characterized in that,
Said second server, the operating state that is used to monitor the dual-locomotive heat redundancy backup comprises: be used for monitoring and whether can receive heartbeat packet from said heartbeat packet passage, confirm that then operating state is a fault if can not receive heartbeat packet.
8. according to the said system of claim 7, it is characterized in that said heartbeat packet passage is set up by second server; Create the port snooping service end by first server;
Said first server is used for initiatively sending heartbeat packet to second server through said heartbeat packet passage;
Said second server is used to receive the heartbeat packet that first server initiatively sends, and after receiving heartbeat packet, sends corresponding with it answer.
9. according to the said system of claim 7, it is characterized in that,
Said second server also is used for after definite said operating state is fault, setting up the fault inquiry connectivity port, is used for initiating incessantly and being connected of first server, and confirms in view of the above whether first server recovers normal; If it is normal that first server recovers, second server switches to slave unit.
10. according to any said system of claim 1 to 4, it is characterized in that the client that client that said first server connects with it and second server connect with it all adopts data link layer communication to connect.
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| CN103916226A (en) * | 2012-12-31 | 2014-07-09 | 北京大唐高鸿软件技术有限公司 | Redundant backup method based on embedded equipment |
| CN103955188A (en) * | 2014-04-24 | 2014-07-30 | 清华大学 | Control system and method supporting redundancy switching function |
| CN104270450A (en) * | 2014-10-10 | 2015-01-07 | 浪潮集团有限公司 | Double-controller multilink heartbeat monitoring method using UDP |
| CN104320291A (en) * | 2014-11-19 | 2015-01-28 | 国家电网公司 | High-reliability message transmission method and system |
| CN105471619A (en) * | 2015-08-03 | 2016-04-06 | 汉柏科技有限公司 | Network node devices and master-slave configuration method and system thereof |
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| CN103916226A (en) * | 2012-12-31 | 2014-07-09 | 北京大唐高鸿软件技术有限公司 | Redundant backup method based on embedded equipment |
| CN103955188B (en) * | 2014-04-24 | 2017-02-15 | 清华大学 | Control system and method supporting redundancy switching function |
| CN103955188A (en) * | 2014-04-24 | 2014-07-30 | 清华大学 | Control system and method supporting redundancy switching function |
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| CN111884924B (en) * | 2016-04-01 | 2022-10-04 | 横河电机株式会社 | Redundancy device, redundancy system, and redundancy method |
| CN111884923A (en) * | 2016-04-01 | 2020-11-03 | 横河电机株式会社 | Redundancy device, redundancy system, and redundancy method |
| CN111884924A (en) * | 2016-04-01 | 2020-11-03 | 横河电机株式会社 | Redundancy device, redundancy system, and redundancy method |
| CN106354589A (en) * | 2016-08-24 | 2017-01-25 | 天津天大求实电力新技术股份有限公司 | Double-unit hot standby method of micro-grid energy management system service programs |
| CN108270593A (en) * | 2016-12-30 | 2018-07-10 | 北京中科晶上科技股份有限公司 | A kind of two-node cluster hot backup method and system |
| CN108270593B (en) * | 2016-12-30 | 2021-10-15 | 北京中科晶上科技股份有限公司 | Dual-computer hot backup method and system |
| CN107132838A (en) * | 2017-04-27 | 2017-09-05 | 上海大学 | A kind of unmanned boat fault protection system |
| CN109753387A (en) * | 2018-01-24 | 2019-05-14 | 比亚迪股份有限公司 | The double hot standby method and system of rail traffic multimedia system |
| CN109597710A (en) * | 2018-11-19 | 2019-04-09 | 杭州信核数据科技股份有限公司 | A kind of distributive data center strange land dual-active method and application server and network |
| CN109639512A (en) * | 2019-01-28 | 2019-04-16 | 中船重工鹏力（南京）大气海洋信息系统有限公司 | A kind of heat backup method of VTS multi-sensor information total system |
| CN109639512B (en) * | 2019-01-28 | 2021-06-15 | 中船重工鹏力（南京）大气海洋信息系统有限公司 | Hot backup method of VTS multi-sensor information comprehensive processing system |
| CN111628880A (en) * | 2019-02-27 | 2020-09-04 | 深圳迈瑞生物医疗电子股份有限公司 | Method for transferring failure of in-hospital equipment and monitoring system |
| CN114666087A (en) * | 2020-12-23 | 2022-06-24 | 诺基亚通信公司 | Safety redundancy |
| CN113395188A (en) * | 2021-06-11 | 2021-09-14 | 北京飞讯数码科技有限公司 | Method and system for determining working state of server |
| CN113395188B (en) * | 2021-06-11 | 2023-08-08 | 北京飞讯数码科技有限公司 | Method and system for determining working state of server |
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Application publication date: 20120919 |