CN109873759A - It is a kind of based on the intelligent double-machine standby technology for singly leading equipment - Google Patents
It is a kind of based on the intelligent double-machine standby technology for singly leading equipment Download PDFInfo
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- CN109873759A CN109873759A CN201711245454.5A CN201711245454A CN109873759A CN 109873759 A CN109873759 A CN 109873759A CN 201711245454 A CN201711245454 A CN 201711245454A CN 109873759 A CN109873759 A CN 109873759A
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- vrrp
- keepalived
- singly
- node cluster
- intelligent double
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Abstract
The invention discloses a kind of based on the intelligent double-machine standby technology for singly leading equipment, which realizes the active switching of two-node cluster hot backup and place an order the transmission data pattern led in this two-node cluster hot backup, and single guiding systems is allowed to become efficient and stablize.
Description
Technical field
It is the present invention relates to a kind of Internet communication technology field, in particular to a kind of based on the intelligent dual-locomotive heat for singly leading equipment
Standby technology.
Background technique
This two-node cluster hot backup for singly leading equipment is based on realizing on the basis of keepalived technology.Keepalived is collection
A service software for guaranteeing cluster High Availabitity in group's management, is functionally similar to heartbeat, for preventing Single Point of Faliure.
Keepalived is the vrrp full name virtual router redundancy using vrrp agreement as optimized integration
Protocol, i.e. Virtual Router Redundacy Protocol.Virtual Router Redundacy Protocol, it is believed that be the association for realizing router High Availabitity
The router that N platform provides identical function is formed a router group by view, there is master and multiple in this group the inside
There is a vip (default route for other machines in local area network where the router that service is externally provided above backup, master
For the vip), master can send out multicast, be considered as master when backup can not receive vrrp packet and break down, at this moment just need root
Backup is selected to work as master according to the priority of vrrp.In this case the High Availabitity of equipment is ensured that.
Mainly there are three modules by keepalived, are core, check and vrrp respectively.Core module is keepalived
Core, be responsible for the starting of host process, maintenance and global configuration file load and parsing.Check is responsible for health examination, including
Common various test modes.Vrrp module realizes vrrp agreement.Using keepalived feature, we realize list
Active and standby two-node cluster hot backup is led, effectively prevent single machine out of joint and makes service stopping.
Summary of the invention
In order to overcome the deficiencies of the prior art, the two-node cluster hot backup that list of the present invention is led is based on the basis of keepalived technology
It realizes.Keepalived is the vrrp full name virtual router redundancy using vrrp agreement as optimized integration
Protocol, i.e. Virtual Router Redundacy Protocol.Virtual Router Redundacy Protocol, it is believed that be the association for realizing router High Availabitity
The router that N platform provides identical function is formed a router group by view, there is master and multiple in this group the inside
There is a vip (default route for other machines in local area network where the router that service is externally provided above backup, master
For the vip), master can send out multicast, be considered as master when backup can not receive vrrp packet and break down, at this moment just need root
Backup is selected to work as master according to the priority of vrrp.In this case the High Availabitity of equipment is ensured that.
Mainly there are three modules by keepalived, are core, check and vrrp respectively.Core module is keepalived
Core, be responsible for the starting of host process, maintenance and global configuration file load and parsing.Check is responsible for health examination, including
Common various test modes.Vrrp module realizes vrrp agreement.Using keepalived feature, we realize list
Active and standby two-node cluster hot backup is led, effectively prevent single machine out of joint and makes service stopping.
Invention technical solution bring the utility model has the advantages that
When the present invention solves single machine failure, make the problem for servicing cisco unity malfunction, while also solving because of list
The problem led one-way transmission and cause the transmission of two-node cluster hot backup data difficult.Especially when singly leading inner end failure, data transmission
How from the host that the standby host of outer end passes to inner end, also well solve here.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 Fig. 2 is schematic diagram of the invention；
Fig. 3 Fig. 4 is that data transmit schematic diagram；
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Specific embodiment:
Keepalived realizes that the two-node cluster hot backup singly led mainly configures a configuration file keepalived.conf, the inside
Mainly include following configuring area, be respectively global_defs, static_ipaddress, static_route,
Vrrp_script, vrrp_instance and virtual_server；
Whom sends out mail notification to when notfication_email failure occurs；
Notification_email_from circular mail is issued from which address；
The address smtp of smpt_server circular mail；
The time-out time of smtp_connect_timeout connection smtp server；
The brief note string that router_id identifies this node is usually hostname, and when failure occurs, mail notification can be used.
As above, vrrp_sync_group, which is used, defines vrrp_intance group, so that this group member keeps strokes.
Its function: two vrrp_instance belong to a vrrp_rsync_group, then one of vrrp_instance
It breaks down when switching, another vrrp_instance also can and then switching (even if there is no failures by this instance)；
Vrrp_instance, which is used to define, externally provides the region vip and its association attributes of service；
Notify_master/backup respectively indicates script performed when being switched to active and standby；
Notify indicates call the script when switching of one state of task；
State can be master or backup, and not excessive other nodes keepalived can be by priority when starting
Bigger node election is master, therefore this is in fact without substantive purposes；
The network interface card of the intrinsic ip of interface node, with sending out vrrp packet；
Virtual_router_id value is between 0-255, for distinguishing the vrrp multicast of multiple instance；
The node that nopreempt allows a priority relatively low is as master, even if there is priority higher
Node starting.Nopreempt first must be just come into force on the node that state is backup (because being that buckup node determines
Whether become masterr's)；The function that its secondary realization is similar to closing auto failback is needed all nodes
State is both configured to backup, or the ratio backup of the priority setting of master node is low.By all nodes
State is arranged to backup and plus nopreempt option, thus completes autofailback function, when thinking hand
It moves and only needs to remove the nopreempt option of the node when certain node is switched to master and priority is changed to ratio
Other nodes are big, then reload configuration file.
It is mainly outer end and outer end composition two-node cluster hot backup with reference to the mono- two-node cluster hot backup led of Fig. 2, inner end and inner end form two-shipper
It is hot standby, while active and standby carry out active switching (the actively shell foot of switching singly led can be able to achieve using the characteristic of nopreempt
This is as follows)；
When the interior end system of host breaks down, the active and standby of inner end switches, while vip will be moved from the host of inner end
Move onto the standby host of inner end, while the data of outer end main frame got will pass on the standby host of outer end, outer end standby host again
Data are transferred on the standby host of inner end, so that the transmission of data is no longer pass through the interior end main frame to break down, referring to attached drawing 3.
When the outer end system of host breaks down, the active and standby of outer end switches, while vip will be moved from the host of outer end
Move onto the standby host of outer end, due to outer end can with photos and sending messages to inner end, so the standby host of outer end can send out message to the standby host of inner end,
Standby host issues the host of inner end again, makes interior end main frame that active-standby switch actively occur, while vip will be moved into standby host, at this moment will be by
Standby host executes task, and the standby host of outer end obtains data, and to be transmitted to inner end again standby, completes data transmission while causing the device to normal work
Make, referring to attached drawing 4.
It is provided for the embodiments of the invention and a kind of has been carried out in detail based on the intelligent double-machine standby technology for singly leading equipment above
Thin to introduce, used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (4)
1. a kind of based on the intelligent double-machine standby technology for singly leading equipment, which is based on realizing on the basis of keepalived technology
, it is core, check and vrrp respectively that mainly there are three modules by keepalived.
2. according to claim 1 a kind of based on the intelligent double-machine standby technology for singly leading equipment, which is characterized in that core mould
Block is the core of keepalived, is responsible for starting, maintenance and the global configuration file load and parsing of host process；Check is negative
Health examination is blamed, including common various test modes；Vrrp module realizes vrrp agreement.
3. according to claim 1 a kind of based on the intelligent double-machine standby technology for singly leading equipment, it is characterised in that
Keepalived realizes that the two-node cluster hot backup singly led mainly configures a configuration file keepalived.conf, and the inside mainly includes
Following configuring area, be respectively global_defs, static_ipaddress, static_route, vrrp_script,
Vrrp_instance and virtual_server.
4. according to claim 1 a kind of based on the intelligent double-machine standby technology for singly leading equipment, which is characterized in that singly lead
Two-node cluster hot backup is mainly outer end and outer end composition two-node cluster hot backup, and inner end and inner end form two-node cluster hot backup, while utilizing nopreempt
Characteristic can be able to achieve the active and standby carry out active switching singly led.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711245454.5A CN109873759A (en) | 2017-12-01 | 2017-12-01 | It is a kind of based on the intelligent double-machine standby technology for singly leading equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711245454.5A CN109873759A (en) | 2017-12-01 | 2017-12-01 | It is a kind of based on the intelligent double-machine standby technology for singly leading equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109873759A true CN109873759A (en) | 2019-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201711245454.5A Pending CN109873759A (en) | 2017-12-01 | 2017-12-01 | It is a kind of based on the intelligent double-machine standby technology for singly leading equipment |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140321265A1 (en) * | 2013-04-29 | 2014-10-30 | Telefonaktiebolaget L M Ericsson (Publ) | Fast traffic recovery in vrrp based routers |
| CN104765653A (en) * | 2015-02-15 | 2015-07-08 | 杭州米加科技有限公司 | Method for achieving database HA application through keepalived software |
| CN105959145A (en) * | 2016-06-04 | 2016-09-21 | 广东中兴新支点技术有限公司 | Method and system for parallel management server of high availability cluster |
-
2017
- 2017-12-01 CN CN201711245454.5A patent/CN109873759A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140321265A1 (en) * | 2013-04-29 | 2014-10-30 | Telefonaktiebolaget L M Ericsson (Publ) | Fast traffic recovery in vrrp based routers |
| CN104765653A (en) * | 2015-02-15 | 2015-07-08 | 杭州米加科技有限公司 | Method for achieving database HA application through keepalived software |
| CN105959145A (en) * | 2016-06-04 | 2016-09-21 | 广东中兴新支点技术有限公司 | Method and system for parallel management server of high availability cluster |
Non-Patent Citations (1)
| Title |
|---|
| 汪海洋等: "基于keepalived的高可用性应用研究", 《电子技术》 * |
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Application publication date: 20190611 |
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