KR20140132296A - Virtual machine state analyzing system - Google Patents

Abstract

A state analyzing system for a virtual machine is provided. According to an embodiment of the present invention, the state analyzing system for a virtual machine includes a physical machine which creates a virtual machine by allocating resources; a managing module managing the virtual machine; and a supervising module monitoring the creation of the virtual machine. The managing module manages logs of the virtual machine. The supervising module analyzes the logs, extracts a particular pattern of the logs, and determines the state of the virtual machine by comparing the particular pattern with a predetermined standard pattern.

Description

[0001] VIRTUAL MACHINE STATE ANALYZING SYSTEM [0002]

The present invention relates to a virtual machine status diagnosis system, and more particularly, to a system for diagnosing a status of a virtual machine creation process in a virtual computing environment based on virtualization technology.

System virtualization technology is widely used as an alternative to solve problems such as inefficient resource utilization and low cost and high efficiency service of a high performance computing system.

In particular, system virtualization technology is becoming one of the technologies for implementing the cloud computing platform and has become a core infrastructure technology of Virtual Desktop Infrastructure (VDI) service that provides a virtualized independent computing environment .

These systems virtualization technologies enable the creation of virtualized systems that can be serviced through virtualization software called virtual machine monitors or hypervisors, including Xen, KVM, VMWare ESX, MS Hyper-V, and OpenVZ. Level. Moreover, virtualization technology is being applied to embedded systems because of the high performance hardware capabilities.

The virtual machine running on the virtualized system has a certain period from generation to extinction, and the creation phase of the virtual machine operation cycle is an important step for determining whether the operation phase is possible in the future.

Such a virtual machine creation step may fail due to various reasons. Among various failure causes, an internal or external problem related to a virtual disk, for example, a problem caused by a user, a hacking, an abnormal file I / O operation ≪ / RTI >

Furthermore, there are fatal problems, not only because of temporary errors in the VMM or Privileged Domain, but also to persistent problems that can lead to continuous failure of virtual machine creation. However, in the management middleware and tools of the existing virtual machine, failure to detect the virtual machine due to the virtual disk defect in the provisioning phase of the virtual computing resource and to analyze the cause of the failure can not be provided.

Therefore, when the virtual machine is not created successfully, the administrator can not know the cause of the failure of the virtual machine. Especially, in the case of virtual machine creation failure that may occur temporarily or permanently in a virtual cluster that creates a large virtual machine, the manual response of the manager and the identification of the cause may lead to a drastic increase in the management cost.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a method and apparatus for monitoring a creation state of a virtual machine in a step of creating a virtual machine, And to provide a virtual machine condition diagnosis system that can perform the same.

The technical objects of the present invention are not limited to the above-mentioned technical problems, and other technical subjects not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a virtual machine status diagnosis system including a physical machine for allocating resources to create a virtual machine, a management module for managing the virtual machine, Wherein the monitoring module manages log information of the virtual machine and the monitoring module analyzes the log information to extract a specific pattern in the log information, The state of the virtual machine is determined by comparing the defined reference pattern with the specific pattern.

A virtual machine status diagnosis system according to another embodiment of the present invention includes a physical machine for allocating resources to create a virtual machine, a management module for managing the virtual machine, and a monitoring module for monitoring creation of the virtual machine, , The virtual machine receives an external response request signal and transmits a response signal in response thereto, and the monitoring module determines the state of the virtual machine based on the response information of the response signal.

A virtual machine state diagnosis system according to another embodiment of the present invention includes a physical machine for allocating resources to create a virtual machine, a management module for managing the virtual machine, and a monitoring module for monitoring generation of the virtual machine Wherein the management module provides resource information of the virtual machine, the monitoring module generates the resource configuration information based on the resource information, and determines the state of the virtual machine based on the resource configuration information.

According to the present invention as described above, a defect detection and analysis function for a virtualized virtual machine can be provided.

In addition, it is possible to shorten a boot failure and a defect detection time due to a defect of a virtual disk, and to provide a function to detect a shortened time, that is, a normal boot time.

In addition, it is possible to reduce the time cost that can be taken to create a reliable virtual computing resource, and to facilitate optimization of the latency for reliability checking.

In addition, administrators can improve management efficiency by allowing the administrator to accurately recognize the occurrence of a problem in the generation failure of some VMs that may occur when a large-scale virtual computing resource is created.

1 is a block diagram of a virtual machine state diagnostic system in accordance with an embodiment of the present invention.
2 is a block diagram showing the detailed configuration of the monitoring module 130 of FIG.
3 is another block diagram of the virtual machine status diagnosis system of FIG.
4 is a diagram for explaining a sequential state determination process of the virtual machine state diagnosis system of FIG.
5 is a diagram illustrating a sequential state determination process of a virtual machine state diagnosis system according to another embodiment of the present invention.
6 is a view for explaining a sequential state determination process of a virtual machine state diagnosis system according to another embodiment of the present invention.
7 is a view for explaining a boot failure processing process of the virtual machine status diagnosis system according to the embodiments of the present invention.
8 is a diagram illustrating a boot failure analysis process of the virtual machine status diagnosis system according to the embodiments of the present invention.
9 is a view for explaining a boot success process process of the virtual machine status diagnosis system according to the embodiments of the present invention.
10 is a flowchart illustrating an overall process of a virtual machine status diagnosis system according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms " comprises "and / or" comprising "used in the specification do not exclude the presence or addition of one or more other elements in addition to the stated element.

Hereinafter, a configuration of a virtual machine status diagnosis system according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of a virtual machine state diagnosis system according to an embodiment of the present invention. FIG. 2 is a block diagram showing a detailed configuration of the monitoring module 130 of FIG. 1, FIG. 4 is a view for explaining a sequential state determination process of the virtual machine status diagnosis system of FIG. 1; FIG.

A virtual machine state diagnosis system according to an embodiment of the present invention includes a physical machine 110 that allocates resources to create a virtual machine 210, a management module 120 that manages the virtual machine 210, And a monitoring module 130 for monitoring the generation of the virtual machine 210. The management module 120 manages log information of the virtual machine 210. The monitoring module 130 monitors the log information And the monitoring module 130 compares the predetermined pattern with the predefined reference pattern to determine the state of the virtual machine 210. [

The term "sub" or "module" as used herein refers to a hardware component such as software or an FPGA or ASIC, and the term "sub" or "module" performs certain roles. However, " part " or " module " is not meant to be limited to software or hardware. The term " part " or " module " may be configured to reside on an addressable storage medium and configured to play one or more processors. Thus, by way of example, 'a' or 'module' is intended to be broadly interpreted as encompassing any type of process, including features such as software components, object-oriented software components, class components and task components, Microcode, circuitry, data, databases, data structures, tables, arrays, and variables, as used herein, Or " modules " or " modules " or " modules " or " modules " Can be further separated.

The physical machine 110 may include a predetermined resource, e.g., a storage space, a CPU, a memory, and the like, and may allocate resources to the virtual machine 210 on the virtual area. A plurality of virtual machines 210 can be created in one physical machine 110 and each virtual machine 210 can be dynamically allocated resources and can be scaled up or scaled down Process may be performed.

The management module 120 may manage a plurality of virtual machines 210, 220, and 230 formed on the physical machine 110. The management module 120 may refer to management means such as, for example, a hypervisor, but is not limited thereto and may be included in the physical machine 110 or on a separate area from the physical machine 110. The management module 120 can manage the resources in the physical machine 110 and can control creation and deletion of the virtual machine 210.

The cloud environment 200 may mean a set of physical servers for providing a plurality of cloud services, and may mean an environment in which a plurality of virtual machines implemented on a physical server are provided.

A plurality of virtual machines 210, 220, and 230 can be created on the cloud environment 200. Each virtual machine manages a service area and a service area for providing a virtual computing service such as a storage service The management node may include a management node.

In this embodiment, the monitoring module 130 is shown to be configured as a separate virtual machine from the virtual machines 210, 220, and 230. However, the present invention is not limited thereto, .

The monitoring module 130 may monitor the generation of the virtual machine 210. The virtual machine 210 may not be created or an error may occur due to various causes during the boot process of the virtual machine 210. This process may be monitored to promptly determine whether a problem has occurred in the virtual machine 210. [

2, the monitoring module 130 includes a virtual disk analysis unit 131, a virtualization system analysis unit 132, a system log analysis unit 133, a virtual disk information examination unit 134, Unit 135, a virtual machine boot failure detection unit 136, a virtual machine creation monitoring unit 137, a virtual computing resource monitoring unit 138, and a virtual machine console monitoring unit 139.

The virtual disk analysis unit 131, the virtualization system analysis unit 132 and the system log analysis unit 133 can configure a virtual computing resource monitoring group responsible for monitoring and investigating the virtual computing resource utilization status for the test virtual machine A virtual machine boot monitoring unit 137, a virtual computing resource monitoring unit 138, and a virtual machine console monitoring unit 136 The unit 139 can be classified into an investigation layer and a virtual machine boot failure analysis group that analyzes the virtual machine boot failure.

The virtual disk analysis unit 131 can analyze the state of the virtual disk, and the virtualized system analysis unit 132 can analyze the virtualized system that manages creation of the virtual machine. , And a system log analysis unit (133) can analyze console logs generated by the virtual machine during the boot process.

The Virtual Disk Information Inspector Unit 134 may perform virtual disk information extraction and inspection and a Pre-Checking Unit 135 may perform a test on the virtualized system to be tested The VM Boot Fail Detector Unit 136 can detect a virtual machine boot failure that may occur during the test, The VM Creation Monitor Unit 137 senses virtual machine creation and the Virtual Computing Resource (VCR Monitor Unit) 138 can monitor virtual computing resources in detail , The VM Console Monitor Unit 139 monitors the console output for the boot process of the virtual machine.

3, a user accessing a plurality of virtual machines 210, 220, 230, 240, 250 and 260 through a client (not shown) and receiving a cloud service such as a storage service or a web service A plurality of virtual machines 210, 220, 230, 240, 250, and 260 may be clustered to configure a cloud environment 200 including a predetermined virtual cluster so as to be recognized as using one storage area.

4, the management module 120 managing the first virtual machine 210 may collect and manage log information of the first virtual machine 210, and the log information may be monitored by the management module 120 Module 130 as shown in FIG. The monitoring module 130 may analyze the log information to extract a specific pattern in the log information, and compare the predetermined pattern with a predetermined pattern to determine the state of the virtual machine 210.

For example, the specific pattern may be a predetermined keyword, and the reference pattern may be a keyword group corresponding to a specific pattern. That is, a specific keyword can be detected in the log information to determine the boot success or the boot failure of the virtual machine

Hereinafter, a configuration of a virtual machine status diagnosis system according to another embodiment of the present invention will be described with reference to the drawings. 5 is a diagram illustrating a sequential state determination process of a virtual machine state diagnosis system according to another embodiment of the present invention.

The configuration of the virtual machine status diagnosis system according to the present embodiment is the same as that of the previous embodiment, but the process of determining the status of the virtual machine is different.

5, the virtual machine state diagnosis system according to another embodiment of the present invention includes a physical machine 110 that allocates resources to create a virtual machine 210, a management unit that manages the virtual machine 210, Module 120 and a monitoring module 130 for monitoring the generation of the virtual machine 210. The virtual machine 210 receives an external response request signal and transmits a response signal corresponding thereto, The controller 130 determines the state of the virtual machine based on the response information of the response signal.

The response information includes a response time to the response request signal, and the monitoring module 130 can determine the state of the virtual machine based on the response time. If the response is delayed for a predetermined time or more compared with the predetermined reference response time, the generation state of the virtual machine can be determined as failure. The response request signal may be transmitted either inside or outside the virtual machine, or may be transmitted outside the physical machine 110. [

Hereinafter, a configuration of a virtual machine status diagnosis system according to another embodiment of the present invention will be described with reference to the drawings. 6 is a view for explaining a sequential state determination process of a virtual machine state diagnosis system according to another embodiment of the present invention.

The configuration of the virtual machine status diagnosis system according to the present embodiment is the same as that of the previous embodiment, but the process of determining the status of the virtual machine is different.

6, the virtual machine status diagnosis system according to another embodiment of the present invention includes a physical machine 110 that allocates resources to create a virtual machine 210, a virtual machine 210 that manages the virtual machine 210 A management module 120 and a monitoring module 130 for monitoring the generation of the virtual machine 210. The management module 120 provides resource information of the virtual machine 210 and the monitoring module 130 The resource configuration information may be generated based on the resource information, and the status of the virtual machine 210 may be determined based on the resource configuration information.

The resource information or resource configuration information may include one of a creation time of the virtual machine, a computing resource allocation time of the virtual machine, a resource usage of the virtual machine, a resource utilization time of the virtual machine, and a resource utilization rate of the virtual machine.

For example, if the resource usage of the virtual machine is less than a predetermined reference value, the monitoring module 130 can determine that the virtual machine has not been normally created or that the virtual machine has not booted normally.

Hereinafter, a boot processing process of a virtual machine status diagnosis system according to embodiments of the present invention will be described with reference to the drawings. FIG. 7 is a view for explaining a boot failure processing process of the virtual machine status diagnosis system according to the embodiments of the present invention, and FIG. 8 is a view for explaining the boot failure analysis process of the virtual machine status diagnosis system according to the embodiments of the present invention And FIG. 9 is a view for explaining a boot success process process of the virtual machine status diagnosis system according to the embodiments of the present invention.

Referring to FIG. 7, when it is determined that the state of the virtual machine 210 is a boot failure, the management module 120 may generate a failure profile for the virtual machine 210.

In some other embodiments, the failure profile may be generated in a separate module from the management module 120. [

If it is determined that the state of the virtual machine 210 is a boot failure, the management module 120 or a separate module can generate a removal command of the virtual machine 210 and a generation command for the new virtual machine, The controller 130 may analyze the resource usage information or the new log information of the new virtual machine to determine the state of the new virtual machine.

Referring to FIG. 8, the failure analysis module 140 may analyze the failure cause of the virtual machine 210 based on log information when the state of the virtual machine 210 is a boot failure. The failure analysis module 140 extracts the disk information of the virtual machine 210, lists the disk information, and determines the cause of failure of the virtual machine 210 based on the partition information of the listed virtual machine 210 .

In addition, the failure analysis module 140 may extract partition information of the virtual machine 210 and perform partition information inspection based on the partition information.

Referring to FIG. 9, the virtual machine status diagnosis system according to the present embodiment may further include a profile module 150 for generating a virtual machine creation profile. The generated profile can be generated regardless of the boot success or failure of the virtual machine, and the user or the administrator can judge the status of the virtual machine in real time or posteriorly based on the profile.

In some other embodiments, the virtual machine state diagnostic system allocates resources in a physical machine to create a virtual machine, but outputs log information for the virtual machine in the operating system of the physical machine or the virtual machine itself that manages the creation of the virtual machine . Alternatively, the status information of the virtual machine can be analyzed based on log information generated in the kernel managing the operating system.

Also, in some other embodiments, the monitoring module 130 may analyze the log information output in connection with the creation of the virtual machine to determine the state of the virtual machine based on the appearance pattern of a particular keyword. For example, in consideration of the number of occurrences of the words "fail" and "hang" and the words "vm" or "virtual machine", appearance frequency or interval, placement, It is possible to determine whether or not the generation of "

Further, in some other embodiments, the monitoring module 130 may analyze the state information of the virtual machine based on the virtual machine state information of the virtual machine or the usage pattern of the virtual hardware. For example, if the spec requested when creating a virtual machine is 100G for a virtual HDD, 4G for a virtual memory, 3.0GHz for a CPU, and the hardware of the actually created virtual machine is different from the requested size Based on this, it is possible to output information that the creation of the virtual machine has failed. In addition, if the I / O or R / W information of the HDD does not occur for a predetermined time or after the virtual machine is created, or if the status remains unchanged, it can be determined that a problem has occurred in the created virtual machine. Or, if the idle resource state of the CPU is 0% after the virtual machine is created and the state is maintained for a certain time, for example 20 seconds or longer, it may be determined that a problem has occurred in the creation of the virtual machine.

Hereinafter, the overall process of the virtual machine status diagnosis system according to another embodiment of the present invention will be described with reference to the drawings. 10 is a flowchart illustrating an overall process of a virtual machine status diagnosis system according to another embodiment of the present invention.

It will be appreciated that the combinations of blocks and flowchart illustrations in the process flow diagram illustrations used herein may be performed by computer program instructions. These computer program instructions may be loaded into a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, so that those instructions, which are executed through a processor of a computer or other programmable data processing apparatus, Thereby creating means for performing functions. These computer program instructions may also be stored in a computer usable or computer readable memory capable of directing a computer or other programmable data processing apparatus to implement the functionality in a particular manner so that the computer usable or computer readable memory The instructions stored in the block diagram (s) are also capable of producing manufacturing items containing instruction means for performing the functions described in the flowchart block (s). Computer program instructions may also be stored on a computer or other programmable data processing equipment so that a series of operating steps may be performed on a computer or other programmable data processing equipment to create a computer- It is also possible for the instructions to perform the processing equipment to provide steps for executing the functions described in the flowchart block (s).

Referring to FIG. 10, it is checked whether a virtual machine to be tested is running (S11). If the virtual machine to be tested is not running, a new virtual machine is created (S13), a timer is started to measure the test time (Test Time), and virtual machine generation detection is started S15). When it detects that a new test virtual machine has been created, it monitors the console output result of the corresponding virtual machine (S17), and monitors the status of a virtual block device (Virtual Block Device) (S19).

Based on the results of the virtual machine console monitoring and the virtual disk status monitoring, the booting success of the virtual machine is checked (S21). The boot success or failure of the virtual machine may be determined based on whether the generated test virtual machine operating system is in the control standby state (S23). If the virtual machine creation is successful, it is checked whether or not the virtual machine is a virtual machine created at the re-examination (S51, S53). In the case of the virtual machine created at the retesting, it is determined that a temporary error has occurred in the virtual machine creation process, and the user is notified of the occurrence of the temporary error (S61). On the other hand, if it is not the virtual machine created at the retesting, the user is notified that the normal virtual disk and the kernel-based virtual machine have been created (S55), and the virtual machine enters the analysis step for the entire virtual disk (S71) .

If the boot failure state occurs at the boot failure check of the virtual machine (S23), the remaining number of times of the check is checked (S25). The number of times of repetitive inspections is basically determined, and the number of repetitive inspections can be determined by a predetermined number of times, which may be predetermined by the user. If it is possible to check the number of remaining tests, the virtual machine boot failure test can be performed (S31), the generated test virtual machine is removed from the virtualized system (S33), the number of tests is simultaneously increased (S35) And then enters the virtual machine creation step again (S13).

If there is no remaining number of inspections remaining (S27), the user is informed that the virtual machine operation environment in which the persistent error occurred is present (S41). Similarly to the above-mentioned successful virtual machine creation diagnosis or temporary error occurrence diagnosis, The process proceeds to step S71 and to the analysis step S73 for the entire virtual disk to analyze boot success or boot failure for the entire virtual disk.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

100: Condition diagnosis system
110: Physical machine
120: Management module
130: Monitoring module
200: Cloud environment
210, 220, 230, 240, 250, 260: virtual machine

Claims (13)

A physical machine that allocates resources to create a virtual machine;
A management module for managing the virtual machine; And
And a monitoring module for monitoring the generation of the virtual machine,
Wherein the management module manages log information of the virtual machine,
Wherein the monitoring module analyzes the log information to extract a specific pattern in the log information,
Wherein the monitoring module compares a predetermined pattern with a predetermined pattern to determine a state of the virtual machine. A physical machine that allocates resources to create a virtual machine;
A management module for managing the virtual machine; And
And a monitoring module for monitoring the generation of the virtual machine,
The virtual machine receives an external response request signal and transmits a response signal in response thereto,
Wherein the monitoring module determines the state of the virtual machine based on response information of the response signal. A physical machine that allocates resources to create a virtual machine;
A management module for managing the virtual machine; And
And a monitoring module for monitoring the generation of the virtual machine,
Wherein the management module provides resource information of the virtual machine,
Wherein the monitoring module generates the resource configuration information based on the resource information and determines the status of the virtual machine based on the resource configuration information. 4. The method according to any one of claims 1 to 3,
Wherein the management module generates a failure profile for the virtual machine if the status of the virtual machine is a boot failure. 5. The method of claim 4,
The management module comprising:
And generates a removal command for the virtual machine and a generation command for the new virtual machine. 5. The method of claim 4,
Wherein the monitoring module analyzes the resource usage information or the new log information of the new virtual machine to determine the state of the new virtual machine. 4. The method according to any one of claims 1 to 3,
Further comprising a failure analysis module for analyzing a failure cause of the virtual machine based on the log information when the status of the virtual machine is a boot failure. 8. The method of claim 7,
The failure analysis module comprising:
Extracting disk information of the virtual machine,
The disk information is cataloged,
And determines the cause of failure of the virtual machine based on the partition information of the listed virtual machines. 8. The method of claim 7,
The failure analysis module comprising:
Extracting partition information of the virtual machine,
And performs partition information inspection based on the partition information. 4. The method according to any one of claims 1 to 3,
And a profile module for generating the virtual machine creation profile. The method according to claim 1,
The specific pattern is a predetermined keyword,
Wherein the reference pattern is a keyword group corresponding to the specific pattern. 3. The method of claim 2,
Wherein the response information includes a response time to the response request signal,
Wherein the monitoring module determines the state of the virtual machine based on the response time. The method of claim 3,
The resource configuration information includes:
Wherein the virtual machine status information includes one of a creation time of the virtual machine, a computing resource allocation time of the virtual machine, a resource utilization rate of the virtual machine, a resource usage amount of the virtual machine, and a resource usage time of the virtual machine.

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