CN112099835B - Soft load balancing mirror image dynamic upgrading method and system - Google Patents
Soft load balancing mirror image dynamic upgrading method and system Download PDFInfo
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Abstract
The invention discloses a dynamic upgrade method and a system for a soft load balancing mirror image, wherein the dynamic upgrade method for the soft load balancing mirror image comprises the following steps: calling a host interface through a management network IP according to the information of the standby virtual machine corresponding to the load balance, and carrying out mirror image upgrading on the standby virtual machine; after the standby virtual machine is upgraded, inquiring information corresponding to load balancing, and starting corresponding configuration to form a main/standby load balancing state; executing an application programming interface of the main virtual machine through the IP of the management network, calling an interface of the host machine, and carrying out mirror image upgrading on the main virtual machine; and after the primary virtual machine finishes upgrading, inquiring related information corresponding to load balancing. Has the beneficial effects that: when the method is upgraded, the function of load balancing is provided outside as usual, and the user cannot be influenced.
Description
Technical Field
The invention relates to the field of dynamic upgrade of soft load balancing mirror images, in particular to a dynamic upgrade method and a dynamic upgrade system of soft load balancing mirror images.
Background
Soft load balancing needs to be implemented by relying on virtual machines. In the mirror image, haproxy (front end load balancing server), lvs (virtual server cluster system) and related dependent packages need to be installed, and then a virtual machine is created by utilizing an SLB (server load balancing) mirror image and subsequent operations are carried out. After the soft load balancing is brought online and run for a period of time, at this point, a portion of the virtual machines have been running online as load balancing carriers. At this time, the SLB image needs to be upgraded, for example, the implementation software of the seven-layer listener in the image is upgraded from haproxy to nginx (high-performance response protocol and reverse proxy web server), so the corresponding virtual machine that has already been running on line also needs to be upgraded as a whole, and it needs to be ensured that the use of the user is not affected, and large-scale traffic interruption is not caused. Therefore, the virtual machine needs to be dynamically updated, and the implementation mechanism depends on the active/standby mode of the virtual machine with soft load balancing and the virtual IP principle of Keepalived (preemptive configuration). And seamless upgrade is ensured according to the principle of 'broken virtual IP, first subordinate and then main'.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides a method and a system for dynamically upgrading a soft load balancing mirror image, so as to overcome the technical problems in the prior related art.
Therefore, the invention adopts the following specific technical scheme:
according to an aspect of the present invention, a dynamic upgrade method for a soft load balancing mirror image is provided, which includes the following steps:
s1, calling a host interface through a management network IP according to information of a main virtual machine and a standby virtual machine corresponding to load balancing and upgrading a standby virtual machine in a mirror image manner;
s2, after the standby virtual machine is upgraded, inquiring information corresponding to load balancing, and starting corresponding configuration to form a main/standby load balancing state;
s3, executing an application programming interface of the primary virtual machine through the IP of the management network, calling an interface of the host, and carrying out mirror image upgrading on the primary virtual machine;
and S4, after the upgrading of the main virtual machine is completed, inquiring related information corresponding to the load balancing, and starting a monitor configured on the main virtual machine and preemptive configuration of the main virtual machine to form a main and standby load balancing state.
Further, the step of calling a host interface and performing image upgrading on the standby virtual machine by querying information of the primary virtual machine and the standby virtual machine corresponding to the load balancing and according to the information of the standby virtual machine corresponding to the load balancing through a management network IP further includes the following steps:
inquiring information of a main virtual machine and a standby virtual machine corresponding to load balancing;
through inquiring the information of the standby virtual machine corresponding to the load balance, the management network IP executes an application programming interface on the standby virtual machine and stops the work of preemptive configuration on the standby virtual machine;
and after the preemptive configuration stops working, calling an interface of the host, and carrying out image upgrading on the standby virtual machine.
Further, after the upgrade of the standby virtual machine is completed, the information corresponding to the load balancing is queried, and the corresponding configuration is started to form a state of the load balancing between the main virtual machine and the standby virtual machine: and the information corresponding to the load balance is information of the listener group and the server group.
Further, the executing the application programming interface of the primary virtual machine through the management network IP, and calling the interface of the host to perform the image upgrade on the primary virtual machine further includes the following steps:
executing an application programming interface of the main virtual machine through the IP of the management network, and stopping the work of preemptive configuration on the main virtual machine;
and after the preemptive configuration stops working, calling an interface of the host to carry out mirror image upgrading on the main virtual machine.
Further, in the working process of executing the application programming interface of the primary virtual machine through the management network IP and stopping the preemptive configuration on the primary virtual machine: and after the operation of the preemptive configuration on the main virtual machine is stopped, waiting for ten seconds, and then carrying out mirror image upgrading on the main virtual machine.
Further, after the primary virtual machine finishes upgrading, querying relevant information corresponding to load balancing, and starting a listener configured on the primary virtual machine and preemptive configuration of the primary virtual machine to form a state process of primary and secondary load balancing: and the related information corresponding to the load balance is information of the listener group and the server group.
According to another aspect of the present invention, there is provided a soft load balancing mirror dynamic upgrade system, including:
the standby virtual machine upgrading module is used for calling a host interface through a management network IP according to the information of the standby virtual machine corresponding to the load balance by inquiring the information of the main virtual machine and the standby virtual machine corresponding to the load balance, and carrying out mirror image upgrading on the standby virtual machine;
after the upgrading of the standby virtual machine is completed, the standby load balancing module I inquires information corresponding to the load balancing and starts corresponding configuration to form a standby load balancing state;
the system comprises a main virtual machine upgrading module, a main virtual machine upgrading module and a main virtual machine upgrading module, wherein the main virtual machine upgrading module executes an application programming interface of the main virtual machine through a management network IP and calls an interface of a host to carry out mirror image upgrading on the main virtual machine;
and the second main/standby load balancing module inquires relevant information corresponding to load balancing after the main virtual machine finishes upgrading, and starts a listener configured on the main virtual machine and preemptive configuration of the main virtual machine to form a main/standby load balancing state.
Further, the step of calling a host interface through a management network IP according to the information of the standby virtual machine corresponding to the load balancing by querying the information of the primary virtual machine and the standby virtual machine corresponding to the load balancing and upgrading the standby virtual machine by using the mirror image further includes the following steps:
inquiring information of a main virtual machine and a standby virtual machine corresponding to load balancing;
through inquiring the information of the standby virtual machine corresponding to the load balance, the management network IP executes an application programming interface on the standby virtual machine and stops the work of preemptive configuration on the standby virtual machine;
and after the preemptive configuration stops working, calling an interface of the host, and carrying out mirror image upgrading on the standby virtual machine.
Further, after the upgrade of the standby virtual machine is completed, the information corresponding to the load balancing is queried, and corresponding configuration is started to form a state of the load balancing between the main virtual machine and the standby virtual machine: and the information corresponding to the load balance is information of the listener group and the server group.
After the standby virtual machine is upgraded, inquiring information of a monitor and a server group corresponding to load balancing;
and starting the configuration monitor on the standby virtual machine and the preemptive configuration of the standby virtual machine to form a main and standby load balancing state.
Further, after the primary virtual machine completes the upgrade, querying relevant information corresponding to the load balancing, and starting a listener configured on the primary virtual machine and preemptive configuration of the primary virtual machine, so as to form a state process of the primary and secondary load balancing: and the related information corresponding to the load balance is information of the listener group and the server group.
The invention has the beneficial effects that:
1. the invention deploys hot standby solution to both the main virtual machine and the standby virtual machine, and floats virtual IP on the main virtual machine by using the preemptive configuration, at the moment, the preemptive configuration on the standby virtual machine is closed, the standby virtual machine system is upgraded, then the preemptive configuration of the standby virtual machine is opened, the preemptive configuration of the main virtual machine is closed, the main virtual machine system is upgraded after about ten seconds, and the preemptive configuration of the main virtual machine is restarted, thereby ensuring continuous flow in the processes of standby virtual machine image upgrading and main virtual machine image upgrading.
2. According to the method, when the standby virtual machine is upgraded, the main virtual machine normally provides a load balancing function, when the standby virtual machine is upgraded successfully, the standby virtual machine provides the load balancing function when the main virtual machine is upgraded, and when the main virtual machine is upgraded, the whole main virtual machine is used as the capability of providing load balancing to the outside; meanwhile, a plurality of load balances can be upgraded concurrently without mutual influence.
3. In the soft load balancing upgrading process, the load balancing function is provided externally as usual, the user cannot be influenced, and the smooth operation of the user service can be ensured, so that the user does not need to be informed in the upgrading process, and the dynamic upgrading can be performed at any time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flowchart of a method for dynamically upgrading a soft load balancing image according to an embodiment of the present invention;
fig. 2 is a system diagram of a system for dynamically upgrading a soft load balancing image according to an embodiment of the present invention.
In the figure:
1. an upgrading module of the virtual machine is prepared; 2. a first main/standby load balancing module; 3. a primary virtual machine upgrading module; 4. and a second main/standby load balancing module.
Detailed Description
For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the invention, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.
According to the embodiment of the invention, a method and a system for dynamically upgrading a soft load balancing mirror image are provided.
As shown in fig. 1-2, according to an aspect of the present invention, a method for dynamically upgrading a soft load balancing image is provided, where the method for dynamically upgrading a soft load balancing image includes the following steps:
s1, calling a host interface through a management network IP according to information of a main virtual machine and a standby virtual machine corresponding to load balancing, and carrying out mirror image upgrading on the standby virtual machine;
s2, after the upgrading of the standby virtual machine is completed, inquiring information corresponding to load balancing, and starting corresponding configuration to form a main and standby load balancing state;
s3, executing an application programming interface of the primary virtual machine through the IP of the management network, calling an interface of the host, and carrying out mirror image upgrading on the primary virtual machine;
and S4, after the primary virtual machine finishes upgrading, inquiring relevant information corresponding to load balancing, and starting a listener configured on the primary virtual machine and preemptive configuration of the primary virtual machine to form a state of load balancing between the primary virtual machine and the secondary virtual machine.
In one example, the invoking a host interface through querying information of a primary virtual machine and a standby virtual machine corresponding to load balancing and according to the information of the standby virtual machine corresponding to load balancing via a management network IP, and performing image upgrading on the standby virtual machine further includes the following steps:
inquiring information of a main virtual machine and a standby virtual machine corresponding to load balancing;
through inquiring the information of the standby virtual machine corresponding to the load balance, the management network IP executes an application programming interface on the standby virtual machine and stops the work of preemptive configuration on the standby virtual machine;
and after the preemptive configuration stops working, calling an interface of the host, and carrying out mirror image upgrading on the standby virtual machine.
In one example, after the upgrade of the standby virtual machine is completed, the information corresponding to the load balancing is queried, and corresponding configuration is started to form a state of the load balancing between the main virtual machine and the standby virtual machine: and the information corresponding to the load balance is information of the listener group and the server group.
In one example, the executing the application programming interface of the primary virtual machine through the management network IP and calling the interface of the host, and the image upgrading of the primary virtual machine further includes the following steps:
executing an application programming interface of the main virtual machine through the IP of the management network, and stopping the work of preemptive configuration on the main virtual machine;
and after the preemptive configuration stops working, calling an interface of the host to carry out image upgrading on the main virtual machine.
In one example, during the operation of executing the application programming interface of the primary virtual machine through the management network IP and stopping the preemptive configuration on the primary virtual machine: and after the operation of the preemptive configuration on the main virtual machine is stopped, waiting for ten seconds, and then carrying out mirror image upgrading on the main virtual machine.
In one example, after the primary virtual machine finishes upgrading, querying relevant information corresponding to load balancing, and starting a listener configured on the primary virtual machine and preemptive configuration of the primary virtual machine, in a process of forming a primary and secondary load balancing state: and the related information corresponding to the load balance is information of the listener group and the server group.
According to another aspect of the present invention, there is provided a soft load balancing mirroring dynamic upgrade system, including:
the standby virtual machine upgrading module 1 is used for calling a host interface through a management network IP according to the information of the standby virtual machine corresponding to the load balance by inquiring the information of the main virtual machine and the standby virtual machine corresponding to the load balance, and carrying out mirror image upgrading on the standby virtual machine;
after the upgrading of the standby virtual machine is completed, the standby load balancing module I2 inquires information corresponding to the load balancing and starts corresponding configuration to form a standby load balancing state;
the primary virtual machine upgrading module 3 executes a primary virtual machine application programming interface through a management network IP and calls an interface of a host machine to carry out mirror image upgrading on the primary virtual machine;
and the second active/standby load balancing module 4 queries relevant information corresponding to load balancing after the primary virtual machine is upgraded, and starts a listener configured on the primary virtual machine and preemptive configuration of the primary virtual machine to form a state of active/standby load balancing.
In one example, the step of calling a host interface through a management network IP according to the information of the primary virtual machine and the standby virtual machine corresponding to the load balancing and the information of the standby virtual machine corresponding to the load balancing to perform the mirror image upgrade on the standby virtual machine further includes the following steps:
inquiring information of a main virtual machine and a standby virtual machine corresponding to load balancing;
through inquiring the information of the standby virtual machine corresponding to the load balance, the management network IP executes an application programming interface on the standby virtual machine and stops the work of preemptive configuration on the standby virtual machine;
and after the preemptive configuration stops working, calling an interface of the host, and carrying out mirror image upgrading on the standby virtual machine.
In one example, after the upgrade of the standby virtual machine is completed, the information corresponding to the load balancing is queried, and corresponding configuration is started to form a state of the load balancing between the main virtual machine and the standby virtual machine: and the information corresponding to the load balance is information of the listener group and the server group.
After the upgrading of the standby virtual machine is completed, the information of the monitor and the server group corresponding to the load balancing is inquired;
and starting the configuration monitor on the standby virtual machine and the preemptive configuration of the standby virtual machine to form a main and standby load balancing state.
In one example, after the primary virtual machine completes the upgrade, the related information corresponding to the load balancing is queried, and the listener configured on the primary virtual machine and the preemptive configuration of the primary virtual machine are started, so that in the process of forming a state of the primary and standby load balancing: and the related information corresponding to the load balance is information of the listener group and the server group.
In summary, with the aid of the above technical solutions of the present invention, the present invention deploys a hot standby solution for both the main virtual machine and the standby virtual machine, and floats virtual IPs on the main virtual machine by using preemptive configuration, at this time, preemptive configuration on the standby virtual machine is first closed, the standby virtual machine system is upgraded, preemptive configuration of the standby virtual machine is then opened, preemptive configuration of the main virtual machine is closed, the main virtual machine system is upgraded after waiting about ten seconds, and preemptive configuration of the main virtual machine is restarted, so as to ensure that flow is continuous in the processes of standby virtual machine image upgrade and main virtual machine image upgrade. According to the method, when the standby virtual machine is upgraded, the main virtual machine normally provides a load balancing function, when the standby virtual machine is upgraded successfully, the standby virtual machine provides the load balancing function when the main virtual machine is upgraded, and when the main virtual machine is upgraded, the whole main virtual machine is used as the capability of providing load balancing to the outside; meanwhile, a plurality of loads can be upgraded in a balanced mode, and the loads are not affected mutually. In the soft load balancing upgrading process, the load balancing function is provided externally as usual, the user cannot be influenced, and the smooth operation of the user service can be ensured, so that the user does not need to be informed in the upgrading process, and the dynamic upgrading can be performed at any time.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A dynamic upgrade method for a soft load balancing mirror image is characterized by comprising the following steps:
s1, calling a host interface through a management network IP according to information of a main virtual machine and a standby virtual machine corresponding to load balancing, and carrying out mirror image upgrading on the standby virtual machine;
s2, after the standby virtual machine is upgraded, inquiring information corresponding to load balancing, and starting corresponding configuration to form a main/standby load balancing state;
s3, executing an application programming interface of the main virtual machine through the IP of the management network, calling an interface of the host machine, and carrying out mirror image upgrading on the main virtual machine;
s4, after the upgrading of the main virtual machine is completed, inquiring related information corresponding to the load balancing, and starting a monitor configured on the main virtual machine and preemptive configuration of the main virtual machine to form a main and standby load balancing state;
the method for upgrading the mirror image of the standby virtual machine by inquiring the information of the main virtual machine and the standby virtual machine corresponding to the load balancing, calling a host interface through a management network IP according to the information of the standby virtual machine corresponding to the load balancing and carrying out mirror image upgrading on the standby virtual machine further comprises the following steps:
inquiring information of a main virtual machine and a standby virtual machine corresponding to load balancing;
through inquiring the information of the standby virtual machine corresponding to the load balance, the management network IP executes an application programming interface on the standby virtual machine and stops the work of preemptive configuration on the standby virtual machine;
after the preemptive configuration stops working, calling an interface of a host, and carrying out mirror image upgrading on the standby virtual machine;
the method for upgrading the mirror image of the main virtual machine by executing the application programming interface of the main virtual machine through the IP of the management network and calling the interface of the main machine further comprises the following steps:
executing an application programming interface of the main virtual machine through the IP of the management network, and stopping the work of preemptive configuration on the main virtual machine;
and after the preemptive configuration stops working, calling an interface of the host to carry out mirror image upgrading on the main virtual machine.
2. The method according to claim 1, wherein after the upgrade of the standby virtual machine is completed, the information corresponding to the load balancing is queried, and corresponding configuration is started to form a state of the active/standby load balancing, where: and the information corresponding to the load balance is information of the listener group and the server group.
3. The method according to claim 2, wherein the application programming interface of the primary virtual machine is executed through an IP of the management network, and during the operation of stopping the preemptive configuration on the primary virtual machine: and after stopping the operation of the preemptive configuration on the main virtual machine, waiting for ten seconds, and then carrying out image upgrading on the main virtual machine.
4. The method according to claim 1, wherein after the primary virtual machine completes upgrading, querying relevant information corresponding to load balancing, and starting a listener configured on the primary virtual machine and preemptive configuration of the primary virtual machine, so as to form a state process of primary and secondary load balancing: and the related information corresponding to the load balance is information of the listener group and the server group.
5. A soft load balancing mirror image dynamic upgrade system is characterized by comprising:
the standby virtual machine upgrading method comprises the steps that a standby virtual machine upgrading module (1) calls a host machine interface through a management network IP according to information of a main virtual machine and a standby virtual machine corresponding to load balancing by inquiring the information of the main virtual machine and the standby virtual machine corresponding to the load balancing, and image upgrading is carried out on the standby virtual machine;
after the primary and standby load balancing modules (2) finish upgrading the standby virtual machine, inquiring information corresponding to load balancing, and starting corresponding configuration to form a primary and standby load balancing state;
the primary virtual machine upgrading module (3) executes a primary virtual machine application programming interface through a management network IP, calls an interface of a host machine and carries out mirror image upgrading on the primary virtual machine;
after the primary virtual machine finishes upgrading, inquiring relevant information corresponding to load balancing, and starting a listener configured on the primary virtual machine and preemptive configuration of the primary virtual machine to form a state of load balancing of the primary virtual machine and the secondary virtual machine;
the method for upgrading the mirror image of the standby virtual machine by inquiring the information of the main virtual machine and the standby virtual machine corresponding to the load balancing, calling a host interface through a management network IP according to the information of the standby virtual machine corresponding to the load balancing and carrying out mirror image upgrading on the standby virtual machine further comprises the following steps:
inquiring information of a main virtual machine and a standby virtual machine corresponding to load balancing;
through inquiring the information of the standby virtual machine corresponding to the load balance, the management network IP executes an application programming interface on the standby virtual machine and stops the work of preemptive configuration on the standby virtual machine;
and after the preemptive configuration stops working, calling an interface of the host, and carrying out image upgrading on the standby virtual machine.
6. The system according to claim 5, wherein after the upgrade of the standby virtual machine is completed, the information corresponding to the load balancing is queried, and corresponding configuration is started to form a state of the active/standby load balancing, where: the information corresponding to the load balance is information of a listener group and a server group;
after the standby virtual machine is upgraded, inquiring information of a monitor and a server group corresponding to load balancing;
and starting the configuration monitor on the standby virtual machine and the preemptive configuration of the standby virtual machine to form a main and standby load balancing state.
7. The system according to claim 6, wherein after the primary virtual machine completes the upgrade, the system queries related information corresponding to the load balancing, and starts a listener configured on the primary virtual machine and preemptive configuration of the primary virtual machine, so as to form a state process of the primary and standby load balancing: and the related information corresponding to the load balance is information of the listener group and the server group.
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| CN102833355A (en) * | 2012-09-22 | 2012-12-19 | 广东电子工业研究院有限公司 | Load balance system and cloud computing oriented mechanism |
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| CN108932180A (en) * | 2018-06-21 | 2018-12-04 | 郑州云海信息技术有限公司 | A kind of disaster tolerance management method, device, storage medium and computer equipment matter |
| CN109451065A (en) * | 2018-12-26 | 2019-03-08 | 中电福富信息科技有限公司 | A kind of soft load balancing shunts automated system and its operation method |
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| CN102833355A (en) * | 2012-09-22 | 2012-12-19 | 广东电子工业研究院有限公司 | Load balance system and cloud computing oriented mechanism |
| CN104899094A (en) * | 2014-03-05 | 2015-09-09 | 安徽皖新金智教育科技有限公司 | Virtual machine load balance processing method |
| CN108932180A (en) * | 2018-06-21 | 2018-12-04 | 郑州云海信息技术有限公司 | A kind of disaster tolerance management method, device, storage medium and computer equipment matter |
| CN109451065A (en) * | 2018-12-26 | 2019-03-08 | 中电福富信息科技有限公司 | A kind of soft load balancing shunts automated system and its operation method |
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