CN110752955A - Seat invariant fault migration system and method - Google Patents
Seat invariant fault migration system and method Download PDFInfo
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- CN110752955A CN110752955A CN201911041633.6A CN201911041633A CN110752955A CN 110752955 A CN110752955 A CN 110752955A CN 201911041633 A CN201911041633 A CN 201911041633A CN 110752955 A CN110752955 A CN 110752955A
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- server unit
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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
- 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
- H04L67/104—Peer-to-peer [P2P] networks
- H04L67/1044—Group management mechanisms
- H04L67/1048—Departure or maintenance mechanisms
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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
- H04L67/104—Peer-to-peer [P2P] networks
- H04L67/1044—Group management mechanisms
- H04L67/1053—Group management mechanisms with pre-configuration of logical or physical connections with a determined number of other peers
- H04L67/1057—Group management mechanisms with pre-configuration of logical or physical connections with a determined number of other peers involving pre-assessment of levels of reputation of peers
Abstract
The invention relates to a fault migration system and method with unchangeable seats, wherein the system comprises: the active server unit regularly saves the memory snapshots of the virtual machines in the background, the standby server unit monitors the active server unit by continuously sending heartbeat packets, when the disconnection of the network is detected, another virtual machine is immediately started to restore the virtual machine snapshots which are successfully saved recently, and the display, the USB and the interface of the standby server unit are transferred to the seat of the fault server unit, so that the seat is unchanged and the state is restored. The invention can realize that when one server unit fails, the external devices such as the system, the task and the display, the keyboard and the mouse, the serial port and the like which are connected with the server unit are automatically migrated to another preset server unit, and the server unit continues to operate according to the original state. The requirements of operators on unchangeable seats and unchangeable connection relation of external equipment are met.
Description
Technical Field
The invention relates to a multi-unit server fault maintenance technology of a domestic processor, in particular to a seat invariant fault migration system and a seat invariant fault migration method.
Background
With the gradual advance and vigorous support of the autonomous controllable industry by the country, the multi-unit server based on the domestic processor is beginning to be popularized and applied in various fields. However, the problems of low hardware stability, frequent failure and the like generally exist in the domestic multi-unit server at present, and the application of the autonomous controllable server in a high-reliability requirement scene is seriously influenced.
At present, the fault migration of a domestic multi-unit server is mainly to migrate an application service, and the main method is to build a service cluster and run high-availability cluster software on the cluster. When some unit hardware or application program of the server fails, other server units automatically restart the application program, so that the purpose of failure migration is achieved.
The fault migration in a high-availability cluster mode is only suitable for the fault migration of the application service, the application service needs to be executed again during the migration, and the continuity of the running state cannot be guaranteed; and the connection relation of the external equipment cannot be kept unchanged after the migration.
Disclosure of Invention
It is an object of the present invention to provide a seat-invariant fault migration system that solves the above-mentioned problems of the prior art.
The invention relates to a fault migration system with unchangeable seats, which comprises: a plurality of server units, a shared storage unit, a network switching unit and a KVM switching unit; the server unit connects the display output interface and the usb interface to the KVM switching unit, and the switching unit provides the display output interface, the usb interface and the serial port to the outside; each server unit is interconnected with the KVM switching unit through the switch unit; the network exchange unit can be connected with the network exchange unit of another server through an external network interface of the whole machine; the active server unit regularly saves the memory snapshots of the virtual machines in the background, the standby server unit monitors the active server unit by continuously sending heartbeat packets, when the disconnection of the network is detected, another virtual machine is immediately started to restore the virtual machine snapshots which are successfully saved recently, and the display, the USB and the interface of the standby server unit are transferred to the seat of the fault server unit, so that the seat is unchanged and the state is restored.
In an embodiment of the seat-invariant failover system according to the present invention, the KVM switch provides network command operations for interface switching and network-to-serial switching.
In an embodiment of the seat-invariant failover system according to the invention, each server unit and the shared storage unit install a domestic operating system and a virtual machine system.
In an embodiment of the seat-invariant failover system according to the invention, all virtual machine images are stored in a shared storage unit, and the server units are able to access these images through network sharing.
According to an embodiment of the seat-invariant fault migration system of the present invention, a virtual network to serial port software is installed in the virtual machine system.
In an embodiment of the seat-invariant failover system according to the present invention, the virtual machine system boots up automatically with the physical machine.
In an embodiment of the seat-invariant failover system according to the present invention, remote desktop management software is installed in the virtual machine system on the shared storage unit.
The invention relates to a fault migration method with unchanged seats, which comprises the following steps: step 1, starting a server; step 2: setting an active server unit and a standby server unit and corresponding priorities; and step 3: each server unit detects the role and priority of the server unit, and enters a standby state if the role of the server unit is not set; if the server unit is set as an active server unit, entering step 4; if the server unit is set as a standby server unit, entering step 5; and 4, step 4: executing the operation of saving the memory snapshot of the virtual machine at regular time; and 5: sending a network heartbeat packet to the active server unit, monitoring the state of the active server unit, and entering step 6 when the standby server monitors network interruption; step 6: the standby server unit judges the priority set by the standby server unit, and if the standby server unit is the first priority, the step 8 is directly carried out; if the standby server unit is not the first priority, performing step 7; and 7: the heartbeat packet is sent to the first priority standby server unit. If the first priority standby server unit network is abnormal, entering step 8; if the state is normal, entering a standby state; and 8: the standby server unit starts the virtual machine and recovers the virtual machine snapshot newly generated by the fault server with the highest priority; and step 9: the standby server unit migrates the standby server unit's display and the USB interface to the failed server unit's seat via a network to KVM switch command.
The invention relates to a fault migration system and a fault migration method based on a domestic three-unit server, which can realize that when one server unit breaks down, external devices such as a system, a task and a display, a keyboard, a mouse, a serial port and the like connected with the server unit are automatically migrated to another preset server unit and continuously run according to the original state. The requirements of operators on unchangeable seats and unchangeable connection relation of external equipment are met.
Drawings
FIG. 1 is a schematic diagram of a seat invariant fault migration system of the present invention;
fig. 2 is a flow chart of the seat invariant fault migration method of the present invention.
Detailed Description
In order to make the objects, contents, and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.
Fig. 1 is a schematic diagram of a seat-invariant fault migration system according to the present invention, and as shown in fig. 1, the seat-invariant fault migration system of a domestic three-unit server according to the present invention includes: three server units, a shared storage unit, a network switch unit and a KVM switch unit. The server unit connects the display output interface and the usb interface to the KVM switching unit, and the switching unit provides the display output interface, the usb interface, the serial port and the like to the outside; each server unit is interconnected with the KVM switch unit via a switch unit, see fig. 1.
As shown in fig. 1, the KVM switch provides network command operation for interface switching and network to serial function; each server unit is provided with a domestic operating system and a virtual machine system; all virtual machine images are stored on a shared storage unit, and the server units can access the images through network sharing. And virtual network to serial port software is installed in the virtual machine system. The virtual machine system is started up automatically along with the physical machine.
As shown in fig. 1, in operation, the active server unit regularly saves the memory snapshots of the virtual machines in the background, the standby server unit monitors the active server unit by continuously sending heartbeat packets, when it is detected that the network is disconnected, another virtual machine is immediately started to restore the virtual machine snapshots that have been successfully saved recently, and interfaces such as the display interface and the USB interface of the standby server unit are migrated to the agent of the failed server unit, thereby realizing agent invariance and state restoration. In the process, the network automatically restores connection, so that the serial port also automatically restores connection.
As shown in FIG. 1, the system may implement one or two standby server units to monitor two or one active server unit and perform failover recovery according to a predetermined priority.
Fig. 2 is a flowchart of a seat invariant fault migration method of the present invention, and as shown in fig. 2, a processing flow of the fault migration method of the present invention includes the following steps:
step 1, powering up a server and normally starting each functional unit;
step 2: setting an active server unit and a standby server unit and corresponding priorities;
and step 3: each server unit detects the role and priority of the server unit. If the role of the server unit is not set, entering a standby state; if the server unit is set as an active server unit, entering the step 4; if the server unit is set as a standby server unit, entering the step 5;
and 4, step 4: immediately executing the operation of saving the memory snapshot of the virtual machine at regular time;
and 5: and sending a network heartbeat packet to the active server unit to monitor the state of the active server unit. When the standby server monitors the network interruption, entering the next step;
step 6: the standby server unit determines the priority to be set by itself. If the standby server unit has the first priority, directly entering the 8 th step; if the standby server unit is not the first priority, the next step is carried out;
and 7: the heartbeat packet is sent to the first priority standby server unit. If the first priority standby server unit network is abnormal, entering step 8; if the state is normal, entering a standby state;
and 8: the standby server unit starts the virtual machine and recovers the virtual machine snapshot newly generated by the fault server with the highest priority;
and step 9: the standby server unit switches the display, USB, etc. interface of the standby server unit to the seat of the failed server unit through a network to KVM switch command.
When the domestic three-unit server fault migration is implemented, the key point of the method is that the virtual machine system can perform online memory snapshot in near real time and immediately recover the latest snapshot when needed; meanwhile, the interface switching is carried out by combining the remote control KVM switching unit, so that the fault recovery is realized and the seats are kept unchanged.
Compared with the prior art, the technical method provided by the invention improves the operation reliability of the domestic server. When a fault occurs, the system automatically restores all the running states before the fault, and the connection relation of the peripheral equipment is kept unchanged, thereby not influencing the work of a user.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A seat-invariant failover system, comprising: a plurality of server units, a shared storage unit, a network switching unit and a KVM switching unit; the server unit connects the display output interface and the usb interface to the KVM switching unit, and the switching unit provides the display output interface, the usb interface and the serial port to the outside; each server unit is interconnected with the KVM switching unit through the switch unit; the network exchange unit can be connected with the network exchange unit of another server through an external network interface of the whole machine;
the active server unit regularly saves the memory snapshots of the virtual machines in the background, the standby server unit monitors the active server unit by continuously sending heartbeat packets, when the disconnection of the network is detected, another virtual machine is immediately started to restore the virtual machine snapshots which are successfully saved recently, and the display, the USB and the interface of the standby server unit are transferred to the seat of the fault server unit, so that the seat is unchanged and the state is restored.
2. The seat-invariant failover system of claim 1, wherein the KVM switch provides network command operations for interface switching and network to serial ports.
3. The seat-invariant failover method of claim 1, wherein each server unit and the shared storage unit has a home operating system installed and a virtual machine system installed.
4. The seat-invariant failover system of claim 1, wherein all virtual machine images are stored in their entirety on a shared storage unit, and wherein server units have access to the images via network sharing.
5. The seat-invariant fault migration system of claim 1, wherein virtual network to serial port software is installed in the virtual machine system.
6. The seat-invariant failover system of claim 1, wherein the virtual machine system boots up automatically with a physical machine.
7. The seat-invariant failover system of claim 1, wherein remote desktop management software is installed in the virtual machine system on the shared storage unit.
8. A method for seat invariant fault migration via the system of any of claims 1-7, comprising:
step 1, starting a server;
step 2: setting an active server unit and a standby server unit and corresponding priorities;
and step 3: each server unit detects the role and priority of the server unit, and enters a standby state if the role of the server unit is not set; if the server unit is set as an active server unit, entering step 4; if the server unit is set as a standby server unit, entering step 5;
and 4, step 4: executing the operation of saving the memory snapshot of the virtual machine at regular time;
and 5: sending a network heartbeat packet to the active server unit, monitoring the state of the active server unit, and entering step 6 when the standby server monitors network interruption;
step 6: the standby server unit judges the priority set by the standby server unit, and if the standby server unit is the first priority, the step 8 is directly carried out; if the standby server unit is not the first priority, performing step 7;
and 7: the heartbeat packet is sent to the first priority standby server unit. If the first priority standby server unit network is abnormal, entering step 8; if the state is normal, entering a standby state;
and 8: the standby server unit starts the virtual machine and recovers the virtual machine snapshot newly generated by the fault server with the highest priority;
and step 9: the standby server unit migrates the standby server unit's display and the USB interface to the failed server unit's seat via a network to KVM switch command.
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| CN201911041633.6A CN110752955A (en) | 2019-10-30 | 2019-10-30 | Seat invariant fault migration system and method |
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| CN201911041633.6A CN110752955A (en) | 2019-10-30 | 2019-10-30 | Seat invariant fault migration system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112462955A (en) * | 2021-01-25 | 2021-03-09 | 北京小鸟科技股份有限公司 | Multi-output node control method, system and equipment of distributed KVM (keyboard video mouse) seat |
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Application publication date: 20200204 |