CN107426021A - Construction method, device and the redundant system of redundant system - Google Patents
Construction method, device and the redundant system of redundant system Download PDFInfo
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- CN107426021A CN107426021A CN201710590014.7A CN201710590014A CN107426021A CN 107426021 A CN107426021 A CN 107426021A CN 201710590014 A CN201710590014 A CN 201710590014A CN 107426021 A CN107426021 A CN 107426021A
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- server
- address
- corresponding relation
- master server
- standby server
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Cardiology (AREA)
- General Health & Medical Sciences (AREA)
- Hardware Redundancy (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The embodiment of the invention discloses a kind of construction method of redundant system, device and redundant system.Methods described includes：Add local virtual IP address；Virtual ip address is preserved to the corresponding relation between master server and standby server；Master server and standby server are monitored on-line by transmitting heartbeat data packets；When the on-line monitoring result of master server or standby server occurs abnormal, corresponding service switching is performed.Construction method, device and the redundant system of redundant system provided in an embodiment of the present invention can significantly improve the availability of system.
Description
Technical field
The present embodiments relate to network communication technology field, more particularly to a kind of construction method of redundant system, device
And redundant system.
Background technology
In today that cloud computing, cloud service are propagated its belief on a large scale, the daily production and living of people become with cloud computing it is close not
It can divide.In daily life, service of the people using various deployment beyond the clouds is the ammeter power purchase of own home, is arranged for oneself various
Party.At work, the various production management systems that people use all rely on the service in high in the clouds.Cloud computing, cloud service are at me
Daily production and living in become important all the more.
However, it is known that subsystem more important in a system, more needs to ensure the reliable of its operation.The most
Direct method is exactly to reserve backup subsystem for important subsystem.However, our IaaS, PaaS and SaaS systems used in everyday
Have a lot in system and backed up accordingly in the absence of it.It means that once the operation of these systems is broken down, then it should
The service of offer is no longer available.
The content of the invention
For above-mentioned technical problem, the embodiments of the invention provide a kind of construction method of redundant system, device and redundancy
System, to improve the availability of system.
In a first aspect, the embodiments of the invention provide a kind of construction method of redundant system, methods described includes：
Add local virtual IP address；
Preserve the corresponding relation between master server and standby server；
Master server and standby server are monitored on-line by transmitting heartbeat data packets；
When the on-line monitoring result of master server or standby server occurs abnormal, corresponding service switching is performed.
Second aspect, the embodiment of the present invention additionally provide a kind of construction device of redundant system, and described device includes：
Address add module, for adding local virtual IP address；
Corresponding relation preserving module, for preserving the corresponding relation between master server and standby server；
Module is monitored on-line, for being supervised online to master server and standby server by transmitting heartbeat data packets
Survey；
Handover module is serviced, for when the on-line monitoring result of master server or standby server occurs abnormal, holding
Service switching corresponding to row.
The third aspect, the embodiment of the present invention additionally provide a kind of redundant system, and the system includes：Client, redundancy are determined
Plan equipment, master server and standby server, also, the redundancy decision device include it is superfluous described in as above second aspect
The construction device of remaining system.
Construction method, device and the redundant system of redundant system provided in an embodiment of the present invention, by preserving master server
And the corresponding relation between standby server, master server and standby server are supervised online by transmitting heartbeat data packets
Survey, and when the on-line monitoring result of master server or standby server occurs abnormal, perform corresponding service switching, show
Write the availability for the system that improves.
Brief description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, of the invention is other
Feature, objects and advantages will become more apparent upon：
Fig. 1 is the system architecture diagram of redundant system provided in an embodiment of the present invention；
Fig. 2 is the flow chart of the construction method for the redundant system that first embodiment of the invention provides；
Fig. 3 is the flow chart of the construction method for the redundant system that second embodiment of the invention provides；
Fig. 4 is the structure chart of the construction device for the redundant system that third embodiment of the invention provides.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that in order to just
Part related to the present invention rather than entire infrastructure are illustrate only in description, accompanying drawing.
The overall architecture for the network that the construction method of redundant system provided in an embodiment of the present invention is applied is introduced first,
It is exactly the overall architecture of redundant system.Referring to Fig. 1, redundant system includes：Master server 11, standby server 12, redundancy decision-making
Equipment 13, network 14, and customer equipment 15.Wherein, master server 11 and standby server 12 respectively with redundancy decision device
13 are connected.And redundancy decision device 13 is connected to customer equipment 15 by network 14.In above-mentioned framework, network 14 can be
Wide area network, or Metropolitan Area Network (MAN).That is, redundancy decision device 13 is connected to customer equipment by wide area network or Metropolitan Area Network (MAN)
15.And the network connection between master server 11, standby server 12 and redundancy decision device 13 is the network company in LAN
Connect.
Standby server 12 is the backup server of master server 11, in the situation that master server 11 itself breaks down
Under, redundancy decision device 13 automatically switches to standby server 13 to obtain corresponding service.Certainly, backup server is being used
During 12 provide service, if failure occurs in backup server 12, offer service is no longer able to, then should switch to master
Server 11 provides service.
Typically, master server 11 and standby server 12 are two Web servers, and its function is according to customer equipment
15 request, corresponding webpage is provided to customer equipment 15.These webpages can be static Web page or dynamic web page.
First embodiment
Present embodiments provide a kind of technical scheme of the construction method of redundant system.In the technical scheme, redundancy system
The construction method of system by redundant system construction device perform, also, the construction device of redundant system be integrated in it is as shown in Figure 1
In redundancy decision device.
Referring to Fig. 2, the construction method of redundant system includes：
S21, add local virtual IP address.
The beginning that method performs, redundancy decision device are first the virtual ip address of itself one local of addition.Why
Using virtual ip address, redundancy decision device caused by when main purpose is to prevent from using Traditional IP is easily by virus, wood
The problem of horse is attacked occurs.
(SuSE) Linux OS provides IP packet filtering mechanism, intercepts and captures ARP request and constructs the ARP of virtual IP address
(Address Resolution Protocol, address resolution protocol) response and intercept and capture ping and ask and construct ping (ping is
A kind of computer network instrument, particular host can be reached by IP agreement for test data bag.Ping operation principles be to
Destination host spreads out of an ICMP request data package, and waits corresponding response data bag to be received) response.These two aspects has constructed
Into being exactly actually to construct virtual IP address.Now client can send TCP message data, no pair of virtual IP address to this virtual IP address
The concept of network protocol stack (protocol stack Protocol Stack refer to the summation of each layer protocol in the network) application layer answered, therefore
Section 3 key technology forwards data according to mapping relations set in advance and the state status of active/standby server.
S22, preserve the corresponding relation between master server and standby server.
In the redundant system that the present embodiment provides, master server 11 and standby server 12 backup each other, and occur in pairs.
That is, in redundant system, a master server 11 be present, there is a corresponding standby server 12.
For the corresponding relation between clear and definite master server 11 and standby server 12, to another when facilitating side failure
The service of one side enables, and needs to store corresponding relation therebetween in redundancy decision device 13.
Specifically, the data structure for being responsible for this corresponding relation of storage is referred to as mapping table.Wherein respectively by main clothes
The IP address of device 11 of being engaged in and the IP address of backup server 12 are stored as two fields.
It should be noted that corresponding relation is virtual ip address and master server, the binding relationship of standby server three,
Master server IP or standby server IP address can be inquired about to obtain by virtual ip address.A group policy is so constituted, it is superfluous
Remaining strategic server can add a plurality of such strategy.
S23, master server and standby server are monitored on-line by transmitting heartbeat data packets.
Redundancy decision device 13 in the master server 11 or standby server 12 for providing Web service by regularly sending out
Heartbeat packet is sent, master server 11 is monitored or whether standby server 12 is online, that is, to master server 11 or standby clothes
Business device 12 is monitored on-line.
Under normal circumstances, detected server, that is, master server 11 or standby server 12 receive by
After the heartbeat data packets that redundancy decision device 13 is sent, response is carried out to the heartbeat data packets received, that is, as redundancy
Think that equipment 13 feeds back the response bag corresponding with the heartbeat data packets received.Redundancy decision device 13 is in stipulated time length
After inside having got corresponding response bag, it is considered as that monitored server is online, otherwise it is assumed that monitored server is
Through going offline or breaking down.
S24, when the on-line monitoring result of master server or standby server occurs abnormal, perform corresponding service and cut
Change.
If exception occurs in the on-line monitoring result of a side, illustrate that the corresponding service on the server has occurred
Failure, it should which the acquisition side of service is switched into an other server up.
Specifically, the handover operation of service can be realized by the reverse translation to service request address.It is for example, former
This offer Web service is master server 11, and its IP address is 10.0.0.100.As its backup, existing server is
Standby server 12, its IP address are 10.0.0.101.Once exception occurs in the on-line monitoring of master server 11, then redundancy is determined
The request address of all Web requests received is translated as 10.0.0.101 by plan equipment 13 by 10.0.0.100, that is, is completed
Service switching to Web service.
Because of above-mentioned redundant system and corresponding handover operation, 100,000 TCP connection parallel communications can be ensured
Ability.
The present embodiment preserves the corresponding pass between master server and standby server by adding local virtual IP address
System, is monitored on-line by transmitting heartbeat data packets to master server and standby server, and when master server or standby
When occurring abnormal with the on-line monitoring result of server, corresponding service switching is performed, improves the availability of system.
Second embodiment
The present embodiment based on the above embodiment of the present invention, further provide redundant system construction method it is another
A kind of technical scheme.In the technical scheme, the construction method of redundant system also includes：Local virtual IP is deleted or modified
Location；The corresponding relation between the master server preserved and the standby server is deleted or modified；To local virtual IP
Addition, deletion, the modification of address, the preservation of corresponding relation between the master server and the standby server, delete, repair
Change, monitor result on-line, and service handover operation carries out log recording.
Referring to Fig. 3, the construction method of redundant system includes：
S31, add local virtual IP address.
S32, preserve the corresponding relation between master server and standby server.
It should be noted that corresponding relation is virtual ip address and master server, the binding relationship of standby server three.
S33, master server and standby server are monitored on-line by transmitting heartbeat data packets.
S34, when the on-line monitoring result of master server or standby server occurs abnormal, perform corresponding service and cut
Change.
S35, change local virtual IP address.
In order to prevent virus infection, prevention inbreaking of Trojan horse, need to change the void of redundancy decision device 13 in some cases
Intend IP address.Because in redundancy decision device 13, IP address uses virtual ip address, it changes operation relative to Traditional IP
Location is relatively easy.
S36, change the corresponding relation between the master server preserved and the standby server.
Identical with virtual ip address, above-mentioned corresponding relation is stored in memory space in the form of mapping table.Moreover,
Above-mentioned memory space is typically erasable memory space, and therefore, the modification for above-mentioned corresponding relation can be according to reality
The IP address situation of master server and standby server, modifies in real time.This point will be brought greatly to system manager
It is convenient.
S37, addition, deletion, modification to local virtual IP address, between the master server and the standby server
Preservation, deletion, the modification of corresponding relation, monitor result on-line, and service handover operation carries out log recording.
In addition to it can flexibly be set to virtual ip address, corresponding relation, redundancy decision device can also be to sending out thereon
Raw important operation carries out log recording.These important operations include：Addition, deletion, the modification of virtual ip address, main service
Preservation, deletion, the modification of corresponding relation between device, standby server, the object information of on-line monitoring, and service switching behaviour
Make.
The present embodiment changes the corresponding relation preserved, and repair to above-mentioned by real time modifying local virtual IP address
Carry out log recording was rewritten, substantially increases the SM of system.
3rd embodiment
Present embodiments provide a kind of technical scheme of the construction device of redundant system.Referring to Fig. 4, in the technical scheme
In, the construction device of redundant system includes：Address add module 41, corresponding relation preserving module 42, on-line monitoring module 43, with
And service handover module 44.
Address add module 41 is used to add local virtual IP address.
Corresponding relation preserving module 42 is used to preserve the corresponding relation between master server and standby server.
On-line monitoring module 43 is used to supervise master server and standby server online by transmitting heartbeat data packets
Survey.
Handover module 44 is serviced to be used to, when the on-line monitoring result of master server or standby server occurs abnormal, hold
Service switching corresponding to row.
Further, the corresponding relation between master server and standby server is：Virtual ip address is to main service
Corresponding relation between device and standby server.
Further, the construction device of redundant system also includes：Module 45 is changed in address.
Address change module 45 is used to change local virtual IP address.
Further, the construction device of redundant system also includes：Corresponding relation changes module 46 and logger module 47.
Corresponding relation change module 46 is used to change the corresponding relation preserved.
Logger module 47 is used for addition, deletion, modification to local virtual IP address, the master server with it is described
Preservation, deletion, the modification of corresponding relation between standby server, monitor result on-line, and service handover operation carries out daily record
Record.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for those skilled in the art
For, the present invention can have various changes and change.All any modifications made within spirit and principles of the present invention, it is equal
Replace, improve etc., it should be included in the scope of the protection.
Claims (10)
- A kind of 1. construction method of redundant system, it is characterised in that including：Add local virtual IP address；Preserve the corresponding relation between master server and standby server；Master server and standby server are monitored on-line by transmitting heartbeat data packets；When the on-line monitoring result of master server or standby server occurs abnormal, corresponding service switching is performed.
- 2. according to the method for claim 1, it is characterised in that the corresponding pass between master server and standby server It is to be：Virtual ip address is to the corresponding relation between master server and standby server.
- 3. according to the method for claim 2, it is characterised in that also include：Change local virtual IP address.
- 4. according to the method for claim 3, it is characterised in that also include：Change the corresponding relation preserved.
- 5. according to the method for claim 4, it is characterised in that also include：Addition, deletion, modification to local virtual IP address, preservation, deletion, the modification of the corresponding relation, on-line monitoring knot Fruit, and service handover operation carry out log recording.
- A kind of 6. construction device of redundant system, it is characterised in that including：Address add module, for adding local virtual IP address；Corresponding relation preserving module, for preserving the corresponding relation between master server and standby server；Module is monitored on-line, for being monitored on-line by transmitting heartbeat data packets to master server and standby server；Service handover module, for when master server or standby server on-line monitoring result occur it is abnormal when, perform pair The service switching answered.
- 7. according to the method for claim 6, it is characterised in that the corresponding pass between master server and standby server It is to be：Virtual ip address is to the corresponding relation between master server and standby server.
- 8. device according to claim 7, it is characterised in that also include：Module is changed in address, for changing local virtual IP address.
- 9. device according to claim 8, it is characterised in that also include：Corresponding relation changes module, for changing the corresponding relation preserved；Logger module, for the addition to local virtual IP address, deletion, modification, the preservation of the corresponding relation, delete Remove, change, monitor result on-line, and service handover operation carries out log recording.
- 10. a kind of redundant system, including：Client, redundancy decision device, master server and standby server, its feature exist In the redundancy decision device includes the construction device according to any described redundant system of claim 6 to 9.
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| CN201710590014.7A CN107426021A (en) | 2017-07-19 | 2017-07-19 | Construction method, device and the redundant system of redundant system |
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Cited By (8)
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| CN108900647A (en) * | 2018-09-13 | 2018-11-27 | 新华三技术有限公司成都分公司 | Address switching handling method and device |
| CN109218096A (en) * | 2018-09-19 | 2019-01-15 | 新智能源系统控制有限责任公司 | A kind of SCADA real-time database access system based on master-slave redundancy |
| CN109344014A (en) * | 2018-09-26 | 2019-02-15 | 新华三大数据技术有限公司 | A kind of main/standby switching method, device and communication equipment |
| CN109446178A (en) * | 2018-11-13 | 2019-03-08 | 郑州云海信息技术有限公司 | A kind of Hadoop object storage high availability method, system, device and readable storage medium storing program for executing |
| 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 |
| CN109656753A (en) * | 2018-12-03 | 2019-04-19 | 上海电科智能系统股份有限公司 | A kind of Redundant backup system applied to track traffic synthetic monitoring system |
| CN109831325A (en) * | 2019-01-22 | 2019-05-31 | 武汉精立电子技术有限公司 | A kind of server switching system and method for sentencing again |
| CN111064819A (en) * | 2019-12-18 | 2020-04-24 | 杭州迪普科技股份有限公司 | Address backup method and device |
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| CN109831325A (en) * | 2019-01-22 | 2019-05-31 | 武汉精立电子技术有限公司 | A kind of server switching system and method for sentencing again |
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