CN109324820B - Host updating method, device, equipment and medium - Google Patents
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- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
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- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
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Abstract
The invention discloses a host machine updating method, a host machine updating device and a host machine updating medium. The method comprises the following steps: when an updating instruction is received, establishing communication connection with a virtual machine in a host machine; the virtual machine is established in advance based on hardware resources of a host machine; controlling the virtual machine to end the service in the running state and collecting a log generated correspondingly to the service; and after the collection of the log is finished, closing the virtual machine, and updating according to a preset logic sequence. The method realizes the collection of the logs in the virtual machine in the updating process of the host machine, so that a technician can learn whether the virtual machine business normally exits and the reason of the abnormal exit in the updating process of the host machine according to the logs, the difficulty of eliminating the abnormality is reduced, and the reliability of executing each business in the virtual machine is relatively ensured. In addition, the invention also provides a host machine updating device, equipment and a medium, and the beneficial effects are as above.
Description
Technical Field
The present invention relates to the field of virtualization, and in particular, to a method, an apparatus, a device, and a medium for updating a host.
Background
The virtualization technology is widely applied to the fields of current servers, cloud computing and the like, and essentially takes the server as a host machine, simulates a plurality of virtual machines on the basis, dynamically shares the computing resources of the server by each virtual machine, provides corresponding services in the virtual machines for users, and improves the service efficiency of the server. Based on the virtualization technology, the virtual machine can be flexibly installed, configured, replaced, moved and the like according to the needs of users, and the flexibility of service operation is greatly improved.
In the operation and configuration process of the virtual machine, log collection is very important operation content, and according to the collected logs in the virtual machine, the operation state of the service in the virtual machine and the specific reason when the service fails can be known.
Under the current situation, an updating mode using a host as an updating object exists, and the main purpose of the updating mode is to update the host including each virtual machine with working software, but the host is updated by default and closes the virtual machine therein, and because related services are often operated in the virtual machine in advance, the services can also quit due to the closing of the virtual machine, and under the scene, collection of logs of the services in the virtual machine cannot be realized, so that the service state of the virtual machine in the updating process of the host is difficult to learn, and a technician cannot know whether the services in the virtual machine normally quit and the reason of abnormal quit when the host is updated, so that the difficulty in removing the abnormality is high, and the reliability of execution of each service in the virtual machine cannot be ensured.
Therefore, it is seen that an update method of a host is provided to achieve log acquisition of a virtual machine in the host in an update process of the host, so that when a service of the virtual machine is abnormal, a reason for the abnormal service can be obtained according to the log, and reliability of execution of each service in the virtual machine is ensured, which is an urgent problem to be solved by technical personnel in the field.
Disclosure of Invention
The invention aims to provide a host machine updating method, a host machine updating device, equipment and a medium, which are used for realizing the acquisition of logs of a virtual machine in the host machine updating process, so that when the service of the virtual machine is abnormal, the reason of the abnormal service can be obtained according to the logs, and the reliability of the execution of each service in the virtual machine is ensured.
In order to solve the above technical problem, the present invention provides a host update method, including:
when an updating instruction is received, establishing communication connection with a virtual machine in a host machine; the virtual machine is established in advance based on hardware resources of a host machine;
controlling the virtual machine to end the service in the running state and collecting a log generated correspondingly to the service;
and after the collection of the log is finished, closing the virtual machine, and updating according to a preset logic sequence.
Preferably, the performing the update operation according to the preset logic sequence specifically includes:
releasing original computing resources of the virtual machine and disconnecting communication connection;
updating the version of the virtualization software, and replacing the virtual machine with a target virtual machine of a preset version;
new computing resources are allocated to the target virtual machine.
Preferably, before controlling the virtual machine to end the service in the running state, the method further includes:
acquiring the time overhead required by each service in the ending process, and correspondingly setting the priority of the service from high to low according to the time overhead from large to small;
correspondingly, the specific step of controlling the virtual machine to end the service in the running state is:
and controlling the virtual machine to end the service according to the priority sequence.
Preferably, after the updating operation is performed according to the preset logic sequence, the method further includes:
and acquiring the current time, and establishing a corresponding relation between the current time and the log.
Preferably, the establishing of the communication connection with the virtual machine specifically includes:
and establishing a communication connection with the virtual machine through an SSH protocol.
In addition, the present invention also provides an update apparatus for a host, comprising:
the connection establishing module is used for establishing communication connection with a virtual machine in a host machine when an updating instruction is received; the virtual machine is established in advance based on hardware resources of a host machine;
the log collection module is used for controlling the virtual machine to end the service in the running state and collecting logs correspondingly generated by the service;
and the updating execution module is used for closing the virtual machine after the collection of the log is finished, and performing updating operation according to a preset logic sequence.
Preferably, the update execution module further includes:
the resource releasing module is used for releasing the original computing resources of the virtual machine and disconnecting the communication connection;
the updating and replacing module is used for updating the version of the virtualization software and replacing the virtual machine with a target virtual machine of a preset version;
and the resource allocation module is used for allocating new computing resources to the target virtual machine.
In addition, the present invention also provides an update apparatus of a host, comprising:
a memory for storing a computer program;
the processor is used for implementing the steps of the host computer updating method when executing the computer program.
Furthermore, the present invention also provides a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the steps of the host update method as described above.
According to the host machine updating method provided by the invention, when an instruction for representing the updating of the host machine is received, the communication connection with the virtual machine is established, so that the virtual machine is controlled to end the service in the running state, the logs correspondingly generated by the service are collected, finally, the virtual machine is closed after the collection of the logs is finished, and the updating operation is carried out according to the preset logic sequence. When receiving an instruction for updating the host machine, the method firstly ends the service of the virtual machine in the host machine in the running state, collects the log of the service, and updates the log until the log is collected, so that the method realizes the collection of the log in the virtual machine in the updating process of the host machine, and a technician can know whether the virtual machine normally exits and the reason of abnormal exit in the updating process of the host machine according to the log, thereby reducing the difficulty of eliminating the abnormality and relatively ensuring the reliability of executing each service in the virtual machine. In addition, the invention also provides a host machine updating device, equipment and a medium, and the beneficial effects are as above.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive effort.
Fig. 1 is a flowchart of an update method of a host according to an embodiment of the present invention;
fig. 2 is a structural diagram of an updating apparatus of a host according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.
The core of the invention is to provide an updating method of a host machine, which is used for realizing the acquisition of the log of the virtual machine in the host machine in the updating process of the host machine, so that when the service of the virtual machine is abnormal, the reason of the abnormal service can be obtained according to the log, and the reliability of the execution of each service in the virtual machine can be ensured. The other core of the invention is to provide a host updating device, equipment and medium.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example one
Fig. 1 is a flowchart of an update method of a host according to an embodiment of the present invention. Referring to fig. 1, the specific steps of the host update method include:
step S10: and when the updating instruction is received, establishing communication connection with the virtual machine in the host machine.
The virtual machine is created in advance based on hardware resources of the host machine.
The virtual machine in this step is created based on the hardware resource of the host, that is, the host is an entity device relative to the virtual machine, carries the virtual machine, and allocates the corresponding hardware resource to the carried virtual machine. In addition, the execution subject of this step may be the host itself, or may be another device that can establish a communication connection with the virtual machine and perform communication control on the virtual machine, and is not specifically limited herein. The key point of the step is that when an update instruction representing that the host machine needs to be updated is received, communication connection is established with the virtual machine in the host machine, so that logs can be obtained for the virtual machine before the host machine is updated.
Step S11: and controlling the virtual machine to end the service in the running state and collecting the log correspondingly generated by the service.
The step is to end the service in the running state in the virtual machine after establishing communication connection with the virtual machine, because the virtual machine is used for responding to the user instruction and performing corresponding data processing according to the user requirement, and the response to the user instruction and the processing of related data are often performed in a specific service process of a certain service, the service referred to in the step is a general reference to the service process in which each service in the virtual machine is running. In addition, the establishment of the communication connection with the virtual machine may specifically log in to the virtual machine based on an SSH protocol, and on this basis, the specific operation of ending the service in the running state in the virtual machine may be to transmit a service ending instruction corresponding to each running state service to an instruction interface of the virtual machine, so that the virtual machine can analyze the transmitted service ending instruction and end the corresponding service, and finally, the purpose of closing the service in the running state in the virtual machine is achieved. The communication connection with the virtual machine may also be established based on protocols such as Telnet, which are specifically determined according to the actual needs of the user and are not specifically limited herein. In addition, because the corresponding log content is generated in the service working process and the service ending process so as to record the current working state, in order to accurately obtain the ending condition of the service in the virtual machine in the host updating process, the step collects the logs generated corresponding to each ended service after the service in the running state is ended. In addition, the collecting of the logs correspondingly generated by the service in this step may specifically be to collect all logs generated from the beginning of the service operation to the end of the service operation, or may be to collect only a part of logs generated in the end of the service operation, which is determined according to the specific requirements of the user, and is not limited herein.
Step S12: and after the collection of the log is finished, closing the virtual machine, and updating according to a preset logic sequence.
The method comprises the steps of closing the virtual machine after collection of the logs is completed, and further continuing to update the host according to a preset logic sequence.
According to the host machine updating method provided by the invention, when an instruction for representing the updating of the host machine is received, the communication connection with the virtual machine is established, so that the virtual machine is controlled to end the service in the running state, the logs correspondingly generated by the service are collected, finally, the virtual machine is closed after the collection of the logs is finished, and the updating operation is carried out according to the preset logic sequence. When receiving an instruction for updating the host machine, the method firstly ends the service of the virtual machine in the host machine in the running state, collects the log of the service, and updates the log until the log is collected, so that the method realizes the collection of the log in the virtual machine in the updating process of the host machine, and a technician can know whether the virtual machine normally exits and the reason of abnormal exit in the updating process of the host machine according to the log, thereby reducing the difficulty of eliminating the abnormality and relatively ensuring the reliability of executing each service in the virtual machine.
Example two
On the basis of the above examples, the present invention also provides a series of preferred embodiments as follows.
As a preferred embodiment, the performing the update operation according to the preset logic sequence specifically includes:
releasing original computing resources of the virtual machine and disconnecting communication connection;
updating the version of the virtualization software, and replacing the virtual machine with a target virtual machine of a preset version;
new computing resources are allocated to the target virtual machine.
It should be noted that the present embodiment describes a scenario in which a host is updated and a virtual machine thereon is also updated. In the above scenario, updating of the virtual machine often requires that the mirror image of the virtual machine is replaced integrally in the host, so that the original computing resources occupied by the original virtual machine in the host need to be released first, the communication connection with the virtual machine needs to be disconnected, then version updating is performed on the virtualization software in the host, and after the virtualization software is updated, the original virtual machine is replaced by a target virtual machine with a preset version, so as to update the virtual machine, and then the host is controlled to allocate new computing resources to the target virtual machine, thereby ensuring that the target virtual machine can operate normally. The target virtual machine with the preset version is a new virtual machine with a different version compared with the original virtual machine, so that the purpose of updating the virtual machine is achieved. The embodiment realizes the technical effect of jointly updating the virtual machines in the host machine in the process of updating the host machine, so that the host machine and the virtual machines do not need to be updated independently, and the overall updating efficiency can be relatively improved when the host machine and the virtual machines on the host machine need to be updated.
In addition, as a preferred embodiment, before controlling the virtual machine to end the service in the running state, the method further includes:
acquiring the time overhead required by each service in the ending process, and correspondingly setting the priority of the service from high to low according to the time overhead from large to small;
correspondingly, the specific step of controlling the virtual machine to end the service in the running state is:
and controlling the virtual machine to end the service according to the priority sequence.
Since it is considered that the time overhead required by each service in the virtual machine in the ending process is often different, therefore, in order to relatively reduce the overall time overhead required for finishing all the services, the embodiment sets the priority of the services according to the length of the time overhead required for finishing the services after acquiring the time overhead required in the process of finishing each service, namely, the service in the virtual machine is controlled to be ended according to the sequence of the priorities from high to low of the priorities of the services corresponding to the time overhead from large to small, so as to enable the service with large time overhead in the ending process to be ended first and the service with small time overhead to be ended later, therefore, under the condition that the system resources are relatively limited, the resources are preferentially occupied for the service with large time overhead, therefore, relatively abundant system resources and time are reserved for the service with high time overhead, and the overall efficiency of the virtual machine at the end of the service can be relatively ensured.
In addition, as a preferred embodiment, after performing the update operation according to the preset logic sequence, the method further includes:
and acquiring the current time, and establishing a corresponding relation between the current time and the log.
In consideration of the fact that in practical application, the host machine may be updated for multiple times, and the time of each update interval is not fixed, corresponding logs are generated irregularly, in order to ensure that each log can be accurately corresponding to each update of the host machine, and the log learning efficiency of technical staff is improved.
In addition, as a preferred embodiment, the establishing of the communication connection with the virtual machine specifically includes:
and establishing a communication connection with the virtual machine through an SSH protocol.
After establishing a communication connection with the virtual machine using the SSH protocol, data transmitted to the virtual machine can be encrypted by the key in the SSH protocol, and leakage and falsification of the data can be prevented. In addition, the transmitted data can be compressed based on the SSH protocol, and the data transmission speed can be relatively increased, so that the control efficiency of the virtual machine is relatively increased in the present embodiment.
EXAMPLE III
In the above, the embodiment of the host update method is described in detail, and the present invention further provides an update apparatus of a host corresponding to the method.
Fig. 2 is a structural diagram of an updating apparatus of a host according to an embodiment of the present invention. The updating device of the host provided by the embodiment of the invention comprises:
a connection establishing module 10, configured to establish a communication connection with a virtual machine in a host computer when receiving an update instruction; the virtual machine is created in advance based on hardware resources of the host machine.
And the log collection module 11 is configured to control the virtual machine to end the service in the running state, and collect a log generated by the service correspondingly.
And the update execution module 12 is configured to close the virtual machine after the collection of the log is completed, and perform an update operation according to a preset logic sequence.
According to the host machine updating device provided by the invention, when an instruction for representing the updating of the host machine is received, the communication connection with the virtual machine is established, so that the virtual machine is controlled to end the service in the running state, the logs correspondingly generated by the service are collected, finally, the virtual machine is closed after the collection of the logs is finished, and the updating operation is carried out according to the preset logic sequence. When receiving an instruction for updating a host machine, the device firstly ends the service of the virtual machine in the host machine in the running state, collects the log of the service, and updates the log until the log is collected, so that the device realizes the collection of the log in the virtual machine in the updating process of the host machine, and a technician can learn whether the service of the virtual machine normally exits or not and the reason of abnormal exit according to the log, thereby reducing the difficulty of removing the abnormality and relatively ensuring the reliability of executing each service in the virtual machine.
On the basis of the third embodiment, the update execution module 12 further includes:
and the resource releasing module is used for releasing the original computing resources of the virtual machine and disconnecting the communication connection.
And the updating and replacing module is used for updating the version of the virtualization software and replacing the virtual machine with a target virtual machine of a preset version.
And the resource allocation module is used for allocating new computing resources to the target virtual machine.
Example four
The present invention also provides an update apparatus of a host, comprising:
a memory for storing a computer program;
the processor is used for implementing the steps of the host computer updating method when executing the computer program.
When receiving an instruction for updating the host, the updating device of the host establishes a communication connection with the virtual machine, further controls the virtual machine to end the service in the running state, collects the log generated corresponding to the service, finally closes the virtual machine after collecting the log, and performs the updating operation according to the preset logic sequence. When receiving an instruction for updating a host machine, the equipment firstly ends the service of the virtual machine in the host machine in the running state, collects the log of the service, and updates the log until the log is collected, so that the equipment realizes the collection of the log in the virtual machine in the updating process of the host machine, and technicians can learn whether the service of the virtual machine normally exits or not and the reason of abnormal exit according to the log, thereby reducing the difficulty of removing the abnormality and relatively ensuring the reliability of executing each service in the virtual machine.
Furthermore, the present invention also provides a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the steps of the host update method as described above.
When receiving an instruction for updating a host computer, the computer-readable storage medium establishes a communication connection with a virtual machine, further controls the virtual machine to end a service in a running state, collects logs generated corresponding to the service, finally closes the virtual machine after collection of the logs is completed, and performs an updating operation according to a preset logic sequence. When receiving an instruction for updating a host machine, the computer-readable storage medium firstly ends a service of the virtual machine in the host machine in an operating state, collects logs of the service, and updates the log until the log is collected, so that the computer-readable storage medium realizes the collection of the logs in the virtual machine in the updating process of the host machine, and technicians can know whether the service of the virtual machine normally exits and reasons of abnormal exit in the updating process of the host machine according to the logs, thereby reducing difficulty in eliminating the abnormality and relatively ensuring reliability of execution of each service in the virtual machine.
The updating method, device, equipment and medium of the host provided by the invention are described in detail above. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device, the device and the medium disclosed by the embodiment correspond to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (8)
1. A host computer updating method is characterized by comprising the following steps:
when an updating instruction is received, establishing communication connection with a virtual machine in a host machine; the virtual machine is created in advance based on hardware resources of the host machine;
controlling the virtual machine to end the service in the running state and collecting a log correspondingly generated by the service;
after the collection of the logs is finished, closing the virtual machine, and performing updating operation according to a preset logic sequence;
before the controlling the virtual machine to end the service in the running state, the method further includes:
acquiring the time overhead required by each service in the ending process, and correspondingly setting the priority of the service from high to low according to the time overhead from high to low;
correspondingly, the step of controlling the virtual machine to end the service in the running state specifically includes:
and controlling the virtual machine to end the service according to the priority sequence.
2. The method according to claim 1, wherein the performing the update operation according to the preset logic sequence specifically comprises:
releasing original computing resources of the virtual machine and disconnecting the communication connection;
updating the version of the virtualization software, and replacing the virtual machine with a target virtual machine of a preset version;
allocating new computing resources to the target virtual machine.
3. The method of claim 1, wherein after the updating operation according to the preset logic sequence, the method further comprises:
and acquiring the current time, and establishing a corresponding relation between the current time and the log.
4. The method according to any one of claims 1 to 3, wherein the establishing of the communication connection with the virtual machine is specifically:
and establishing communication connection with the virtual machine through an SSH protocol.
5. An update apparatus of a host, comprising:
the connection establishing module is used for establishing communication connection with a virtual machine in a host machine when an updating instruction is received; the virtual machine is created in advance based on hardware resources of the host machine;
the log collection module is used for controlling the virtual machine to end the service in the running state and collecting logs correspondingly generated by the service;
the update execution module is used for closing the virtual machine after the collection of the logs is finished and carrying out update operation according to a preset logic sequence;
the apparatus is further configured to: before controlling the virtual machine to end the service in the running state, acquiring the time overhead required by each service in the ending process, and correspondingly setting the priority of the service from high to low according to the time overhead from high to low;
correspondingly, the step of controlling the virtual machine to end the service in the running state by the log collection module specifically includes: and controlling the virtual machine to end the service according to the priority sequence.
6. The apparatus of claim 5, wherein the update performing module further comprises:
the resource releasing module is used for releasing the original computing resources of the virtual machine and disconnecting the communication connection;
the updating and replacing module is used for updating the version of the virtualization software and replacing the virtual machine with a target virtual machine of a preset version;
and the resource allocation module is used for allocating new computing resources to the target virtual machine.
7. An update apparatus of a host, comprising:
a memory for storing a computer program;
processor for implementing the steps of the host update method according to any of claims 1 to 4 when executing said computer program.
8. A computer-readable storage medium, having stored thereon a computer program which, when being executed by a processor, carries out the steps of the method of updating a host according to any one of claims 1 to 4.
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