CN116962160B - Control method, system, equipment and medium for standby server - Google Patents
Control method, system, equipment and medium for standby server Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000011084 recovery Methods 0.000 claims abstract description 16
- 238000012545 processing Methods 0.000 claims description 32
- 238000004590 computer program Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 description 9
- 230000001360 synchronised effect Effects 0.000 description 7
- 230000006870 function Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
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- 230000003287 optical effect Effects 0.000 description 1
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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Abstract
The invention relates to the technical field of cloud computing, in particular to a control method, a control system, a control device and a control medium for a standby server, which comprise the steps of establishing connection between the standby server and a subscription terminal, synchronizing heartbeat signals, and enabling the subscription terminal to be used for receiving and analyzing the heartbeat signals so as to acquire state information of the standby server; setting a time interval, and sending a heartbeat signal to a subscribing terminal by the standby server at regular time according to the preset time interval; the subscribing terminal monitors the state of the cloud standby server by analyzing the received heartbeat signal; if the subscription end does not receive the heartbeat signal within a preset time interval, or the received signal indicates that the standby server is in an unavailable state, the subscription end judges that the local server fails or is unavailable. The problems of manual triggering switching, long switching time, untimely data synchronization and the like in the traditional scheme are solved. By automating the switching, fast recovery and data synchronicity, the present invention achieves more efficient application availability.
Description
Technical Field
The invention relates to the technical field of cloud computing, in particular to a control method, a control system, control equipment and control media for a standby server.
Background
In today's computer science and cloud computing environments, it is critical to ensure continuous availability of applications and data. As the demands of enterprises for high performance, high availability, and flexibility continue to increase, conventional single server architectures have failed to meet these demands. Thus, the concept of cloud computing has emerged, which provides a flexible and high availability computing model that enables greater availability and flexibility by running applications and storing data on distributed servers.
However, even in a cloud computing environment, servers may still fail or be unavailable for various reasons (e.g., hardware failure, network problems, etc.). This may lead to interruption of service, loss of data and degradation of user experience. To cope with these problems, the concept of a standby server has been developed. The standby server is used as a backup of the main server, and when the main server fails, the standby server can rapidly take over service and maintain continuity of service.
Currently, some cloud computing service providers offer solutions for backup servers to ensure high availability of traffic. However, these solutions may have some limitations, such as the need for manual intervention to trigger the handover, longer handover times, untimely data synchronization, etc. Therefore, there is a need for a more efficient, automated and reliable cloud backup server solution that can quickly switch to a backup server when a local server fails and maintain application and data synchronicity.
Disclosure of Invention
The invention aims to provide a control method, a control system, a control device and a control medium for a standby server, which are used for solving the problems in the prior art.
The embodiment of the invention is realized by the following technical scheme:
in a first aspect, the present invention provides a control method for a cloud standby server, including;
the method comprises the steps that a local server is connected with a subscription end, and heart beat signals are synchronized, wherein the subscription end is used for receiving and analyzing the heart beat signals so as to obtain state information of the local server;
setting a time interval, and sending a heartbeat signal to a subscribing terminal by a local server according to the preset time interval at regular time;
the subscribing terminal monitors the state of the cloud local server by analyzing the received heartbeat signal;
if the subscription end does not receive the heartbeat signal within a preset time interval or the received signal indicates that the local server is in an unavailable state, the subscription end judges that the local server fails or is unavailable, and accordingly the operation of switching to the standby server is triggered.
In one embodiment of the invention, comprises;
acquiring the complete state of a local server at a specific time point, and recording the state and data content of the local server;
setting time for timing update, and acquiring the state and data content of the local server again after the time for timing update is reached, and carrying out latest change and data content;
when the switching to the standby server is needed, the data recovery is carried out through the recorded latest state of the local server and the recorded data content.
In one embodiment of the present invention, the operation of triggering the switch to the standby server includes;
stopping the service of the local server, and stopping the application program and the service on the local server by the subscription terminal;
redirecting the flow of applications and data to a standby server;
after switching to the standby server, the subscribing terminal uses the recorded latest state and data content of the local server to restore data;
and if partial faults or communication interruption occurs in the switching process, carrying out fault recovery and reconnection.
In an embodiment of the present invention, the subscribing terminal uses the recorded latest state of the local server and the recorded latest data content to perform data recovery further includes;
after the application program and the data are recovered, the subscribing end establishes connection with the cloud standby server;
the subscribing end directs traffic of the application and data to the backup server.
In one embodiment of the present invention, further comprising;
transmitting the state and data content of the local server to a standby server in real time;
setting a retrieval instruction when the data content in the local server needs to be recovered;
and the standby server returns the required content to the local server according to the retrieval instruction.
In one embodiment of the present invention, further comprising;
acquiring the running load of the local server at the moment, wherein the running load is low load and high load;
if the running load of the local server is low at the moment, the local server normally runs;
if the running load of the local server is high at this time, part of the tasks are sent to the standby server, and after the processing by the standby server is finished, the processing result is returned to the local server.
In an embodiment of the present invention, the operation load is a low load and a high load further includes;
acquiring occupancy rates of a central processing unit, a memory and a display card, wherein the occupancy rates comprise a picture processing environment and a non-picture processing environment;
when the occupancy rate of the display card reaches 50% or more, judging that the display card is in the picture processing environment, otherwise judging that the display card is in the non-picture processing environment;
setting a first weighted average calculation formula when the image processing environment is located, wherein weights of occupancy rates of a central processing unit, a memory and a display card are respectively 30%, 10% and 60%, and obtaining a first result;
setting a second weighted average calculation formula when the display card is in a non-picture processing environment, wherein weights of the central processing unit, the memory and the display card occupancy rate are respectively 60%, 10% and 30%, and obtaining a second result;
and judging that the load is high when the first result or the second result is more than 80%.
In a second aspect, the present invention provides a control system for a cloud standby server, including;
the connection module is configured to establish connection between the standby server and the subscription terminal and synchronize heartbeat signals, and the subscription terminal is used for receiving and analyzing the heartbeat signals so as to acquire state information of the standby server;
the heartbeat sending module is configured to set a time interval, and the standby server sends heartbeat signals to the subscribing terminal at regular time according to the preset time interval;
the analysis module is configured to monitor the state of the cloud standby server by analyzing the received heartbeat signal by the subscribing terminal;
the switching module is configured to trigger the operation of switching to the standby server if the subscription terminal does not receive the heartbeat signal within a preset time interval or the received signal indicates that the standby server is in an unavailable state, and the subscription terminal judges that the local server fails or is unavailable;
the main control device is connected with the connection module, the heartbeat sending module, the analysis module and the switching module and is used for executing the control method for the cloud standby server.
In a third aspect, the present invention further provides an electronic device, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, where the processor implements a control method for a cloud standby server when executing the computer program.
In a fourth aspect, the present invention further provides a computer readable storage medium, where a computer program is stored, where the computer program when executed by a processor implements a control method for a cloud standby server as described above.
The technical scheme of the embodiment of the invention has at least the following advantages and beneficial effects:
1. realizing automatic switching: the invention aims to realize automatic switching from the main server to the standby server by sending synchronous heartbeat signals and monitoring the state of the local server at fixed time, thereby reducing the manual intervention requirement of an administrator and reducing the switching time.
2. Providing fast recovery: the invention realizes the function of quickly recovering the standby server by providing the virtual machine snapshot and the timing update mechanism on the local server. This means that once switching to the standby server, the snapshot of the local server can be used quickly for recovery, reducing the time of service interruption.
3. Realizing data synchronism: the invention ensures the data synchronization between the main server and the standby server by sending the synchronous heartbeat signal at fixed time and providing a fixed-time updating mechanism of the virtual machine snapshot. This reduces the risk of data loss and ensures consistency of the data.
In summary, the present invention aims to provide an improved cloud standby server system, which solves the problems of manual triggering, long switching time, untimely data synchronization and the like in the traditional scheme. By automating the switching, fast recovery and data synchronization, the present invention achieves more efficient, reliable and consistent application availability.
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In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
The terms first, second and the like in the description and in the claims of the present application and in the above-described figures, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. The naming or numbering of the steps in the present application does not mean that the steps in the method flow must be executed according to the time/logic sequence indicated by the naming or numbering, and the execution sequence of the steps in the flow that are named or numbered may be changed according to the technical purpose to be achieved, so long as the same or similar technical effects can be achieved.
The division of the modules presented in this application is a logical division, and there may be other manners of division in practical application, for example, multiple modules may be combined or integrated in another system, or some features may be omitted, or not performed.
The modules or sub-modules described separately may or may not be physically separate, may or may not be implemented in software, and may be implemented in part in software, where the processor invokes the software to implement the functions of the part of the modules or sub-modules, and where other parts of the templates or sub-modules are implemented in hardware, for example in hardware circuits. In addition, some or all of the modules may be selected according to actual needs to achieve the purposes of the present application.
Referring to fig. 1, the control method for a cloud standby server provided by the present invention includes;
s101: establishing connection between a local server and a subscription terminal, and synchronizing heartbeat signals, wherein the subscription terminal is used for receiving and analyzing the heartbeat signals so as to acquire state information of the local server;
the cloud local server and the subscription terminal firstly establish connection to ensure that communication can be carried out between the cloud local server and the subscription terminal. The connection may be established via a network communication protocol (e.g., TCP/IP) or other suitable communication protocol.
The synchronized heartbeat signal is a brief signal that is used to indicate the state of the local server. It may be a specific data packet or message containing relevant information for synchronization.
S102: setting a time interval, and sending a heartbeat signal to a subscribing terminal by a local server according to the preset time interval at regular time;
the local server sends heartbeat signals to the subscribing terminal at regular intervals. The time interval may be set according to specific needs and system configuration. Shorter time intervals may provide more real-time synchronicity, but may increase network load; longer time intervals reduce network load, but synchronization may be somewhat delayed.
S103: the subscribing terminal monitors the state of the local server by analyzing the received heartbeat signal;
s104: if the subscription end does not receive the heartbeat signal within a preset time interval or the received signal indicates that the local server is in an unavailable state, the subscription end judges that the local server fails or is unavailable, and accordingly the operation of switching to the standby server is triggered.
By sending the synchronous heartbeat signals at fixed time, the invention ensures the real-time synchronous state between the cloud standby server and the subscription terminal. This enables the subscribing end to monitor the availability of the local server in real time and to switch quickly when the local server fails or is unavailable. This mechanism of timing synchronization effectively provides fast, automated standby server switching and continued application availability.
An exemplary embodiment of the present invention includes;
acquiring the complete state of a local server at a specific time point, and recording the state and data content of the local server; setting time for timing update, and acquiring the state and data content of the local server again after the time for timing update is reached, and carrying out latest change and data content; when the switching to the standby server is needed, the data recovery is carried out through the recorded latest state of the local server and the recorded data content.
In this embodiment, a virtual machine snapshot is set, which is a backup image of applications and data in the local server. It is a snapshot copy created periodically, recording the state and data content of the local server. The virtual machine snapshot can capture the complete state of the local server at a specific time point
The local server configures the creation and storage mechanisms of the virtual machine snapshot. By using virtualization techniques, virtual machine snapshots can be created on a local server and stored on a designated storage medium (e.g., local hard disk, network storage, etc.). When creating the snapshot, the current state of the application program and data of the local server is captured, and a corresponding snapshot copy is generated
The timed update mechanism will periodically perform the snapshot update operation to record the latest changes and data content in the local server. The updated time interval can be set according to the actual requirement to balance the synchronicity and the utilization of the system resources.
By periodically updating the virtual machine snapshot, the local server can synchronize the latest applications and data changes to the standby server. This ensures that the data in the standby server remains consistent with the local server at all times and provides a reliable data synchronization mechanism. When a switch to a standby server is required, the latest snapshot can be used for quick recovery to achieve continued application availability.
The virtual machine snapshot and timing update mechanism provided by the local server can be managed and controlled by management software or scripts. The administrator may set the snapshot creation and storage policies, adjust the time intervals of the timed update mechanism, and monitor the synchronization status of the local server and the standby server.
The invention realizes the regular backup and synchronization of the application program and the data by the local server provided with the virtual machine snapshot and timing update mechanism. Thus, the data consistency between the local server and the standby server can be maintained, and the standby server can be quickly restored when needed, so that continuous application availability is realized.
Specifically, the operation of triggering the switching to the standby server comprises;
stopping the service of the local server, and stopping the application program and the service on the local server by the subscription terminal; redirecting the flow of applications and data to a standby server; after switching to the standby server, the subscribing terminal uses the recorded latest state and data content of the local server to restore data; and if partial faults or communication interruption occurs in the switching process, carrying out fault recovery and reconnection.
After the application program and the data are recovered, the subscribing end establishes connection with the cloud standby server; the subscribing end directs traffic of the application and data to the backup server.
In one embodiment of the present invention, further comprising;
transmitting the state and data content of the local server to a standby server in real time; setting a retrieval instruction when the data content in the local server needs to be recovered; and the standby server returns the required content to the local server according to the retrieval instruction.
After switching to the standby server, the subscription end can quickly recover by utilizing the virtual machine snapshot equipped by the local server. The virtual machine snapshot is a backup image of the application program and data of the local server, and records the complete state of the local server at a specific time point.
Snapshot recovery: the subscribing end will use the virtual machine snapshot of the local server to restore the applications and data on the standby server. This means that the standby server can restore the same application and data state as the local server in a short time.
Data synchronization: once the application and data are restored, the subscriber end establishes a connection with the cloud backup server and ensures that the backup server's data remain synchronized with the local server to achieve continued application availability.
Service restoration: once the application and data on the standby server are restored to normal, the subscriber will restart the service and redirect the flow of application and data to the standby server so that the user can seamlessly continue accessing the application and data.
Quick recovery can greatly shorten the time that an application is not available. By utilizing the virtual machine snapshot of the local server, the system can restore the standby server to the same application and data state as the local server in a shorter time, thereby reducing the time of service interruption.
Through quick recovery, the method and the system ensure that when the local server fails or is unavailable, the local server can be quickly switched to the cloud standby server and the application program and the data can be quickly recovered. Thus, continuous application availability can be achieved, service interruption time can be reduced, and seamless user experience can be provided.
An exemplary embodiment of the present invention, further comprising;
acquiring the running load of the local server at the moment, wherein the running load is low load and high load; if the running load of the local server is low at the moment, the local server normally runs; if the running load of the local server is high at this time, part of the tasks are sent to the standby server, and after the processing by the standby server is finished, the processing result is returned to the local server.
In an embodiment of the present invention, the operation load is a low load and a high load further includes;
acquiring occupancy rates of a central processing unit, a memory and a display card, wherein the occupancy rates comprise a picture processing environment and a non-picture processing environment; when the occupancy rate of the display card reaches 50% or more, judging that the display card is in the picture processing environment, otherwise judging that the display card is in the non-picture processing environment; setting a first weighted average calculation formula when the image processing environment is located, wherein weights of occupancy rates of a central processing unit, a memory and a display card are respectively 30%, 10% and 60%, and obtaining a first result; and when the first result or the second result is larger than 80%, determining that the load is high.
For example, if the occupancy rates of the central processing unit, the memory and the display card are respectively 70%, 70% and 95%, the screen processing environment is determined, the first result is calculated to be 85% by weighted average, and the high load is determined.
In a second aspect, the present invention provides a control system for a cloud standby server, including;
the connection module is configured to establish connection between the standby server and the subscription terminal and synchronize heartbeat signals, and the subscription terminal is used for receiving and analyzing the heartbeat signals so as to acquire state information of the standby server;
the heartbeat sending module is configured to set a time interval, and the standby server sends heartbeat signals to the subscribing terminal at regular time according to the preset time interval;
the analysis module is configured to monitor the state of the cloud standby server by analyzing the received heartbeat signal by the subscribing terminal;
the switching module is configured to trigger the operation of switching to the standby server if the subscription terminal does not receive the heartbeat signal within a preset time interval or the received signal indicates that the standby server is in an unavailable state, and the subscription terminal judges that the local server fails or is unavailable;
the main control device is connected with the connection module, the heartbeat sending module, the analysis module and the switching module and is used for executing the control method for the cloud standby server.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. The computer software product is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods of the various embodiments of the invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only memory (ROM), a random access memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A method for switching cloud servers, comprising:
establishing connection between a local server and a subscription terminal, and synchronizing heartbeat signals, wherein the subscription terminal is used for receiving and analyzing the heartbeat signals so as to acquire state information of the local server;
setting a time interval, and sending a heartbeat signal to a subscribing terminal by a local server according to the preset time interval at regular time;
the subscribing terminal monitors the state of the local server by analyzing the received heartbeat signal;
if the subscription end does not receive the heartbeat signal within a preset time interval or the received signal indicates that the local server is in an unavailable state, the subscription end judges that the local server fails or is unavailable, and accordingly the operation of switching to the standby server is triggered;
the method further comprises the steps of:
acquiring the current operation load of a local server, wherein the operation load is low load or high load;
if the current running load of the local server is low load, the local server normally runs;
if the current running load of the local server is high, part of tasks are sent to the standby server, and after the processing of the standby server is finished, the processing result is returned to the local server;
the method further comprises the steps of: acquiring occupancy rates of a central processing unit, a memory and a display card;
when the occupancy rate of the display card reaches 50% or more, judging that the display card is in the picture processing environment, otherwise judging that the display card is in the non-picture processing environment;
setting a first weighted average calculation formula when the image processing environment is located, wherein weights of occupancy rates of a central processing unit, a memory and a display card are respectively 30%, 10% and 60%, and obtaining a first result;
setting a second weighted average calculation formula when the display card is in a non-picture processing environment, wherein weights of the central processing unit, the memory and the display card occupancy rate are respectively 60%, 10% and 30%, and obtaining a second result;
and judging that the load is high when the first result or the second result is more than 80%.
2. The method for switching cloud servers according to claim 1, comprising:
acquiring the complete state of a local server at a specific time point, and recording the state and data content of the local server;
setting time for timing update, and acquiring the state and data content of the local server again after the time for timing update is reached, so as to carry out latest change;
when the switching to the standby server is needed, the data recovery is carried out through the recorded latest state of the local server and the recorded data content.
3. The method for switching a cloud server according to claim 2, wherein the operation of triggering switching to a standby server comprises:
stopping the service of the local server, and stopping the application program and the service on the local server by the subscription terminal;
redirecting the flow of applications and data to a standby server;
after switching to the standby server, the subscribing terminal uses the recorded latest state and data content of the local server to restore data;
and if partial faults or communication interruption occurs in the switching process, carrying out fault recovery and reconnection.
4. The method for switching cloud servers according to claim 2, wherein the subscribing terminal uses the recorded latest state of the local server and the recorded data content for data recovery further comprises:
after the application program and the data are recovered, the subscribing end establishes connection with the cloud standby server;
the subscribing end directs traffic of the application and data to the backup server.
5. The method for switching cloud servers of claim 1, further comprising:
transmitting the state and data content of the local server to a standby server in real time;
setting a retrieval instruction when the data content in the local server needs to be recovered;
and the standby server returns the required content to the local server according to the retrieval instruction.
6. An apparatus for switching cloud servers for performing the method of claim 1, comprising:
the connection module is used for establishing connection between the local server and the subscription terminal and synchronizing heartbeat signals, and the subscription terminal is used for receiving and analyzing the heartbeat signals so as to acquire state information of the local server;
the heartbeat sending module is used for setting a time interval, and the local server sends heartbeat signals to the subscribing terminal at regular time according to the preset time interval;
the analysis module is used for monitoring the state of the local standby server by analyzing the received heartbeat signal by the subscription terminal;
and the switching module is used for triggering the operation of switching to the standby server if the subscription terminal does not receive the heartbeat signal within a preset time interval or the received signal indicates that the local server is in an unavailable state, and the subscription terminal judges that the local server fails or is unavailable.
7. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements a method for switching cloud servers according to any of claims 1 to 5 when executing the computer program.
8. A computer-readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, implements a method for switching cloud servers according to any of claims 1 to 5.
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| CN112506702A (en) * | 2020-12-03 | 2021-03-16 | 平安科技（深圳）有限公司 | Data center disaster tolerance method, device, equipment and storage medium |
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