KR101601680B1 - Cloud computing method, clould computing server performing the same and storage media storing the same - Google Patents

Abstract

The cloud computing method is performed in a cloud computing server that can be connected to a user terminal providing an operating environment of the user terminal agent. The cloud computing method includes the steps of determining a virtual machine corresponding to the user terminal agent, setting an application execution environment in the virtual machine, and operating the virtual machine independently of the user terminal agent through the user terminal agent And allowing the executed application to access the application execution environment to monitor a communication channel between the user terminal agent and the virtual machine.

Description

TECHNICAL FIELD [0001] The present invention relates to a cloud computing method, a cloud computing server, and a recording medium storing the same. Technical Field [0001] The present invention relates to a cloud computing method,

The present invention relates to a cloud computing technology, and more particularly, to a cloud computing method capable of supporting an application operated in a virtual machine to monitor a communication channel regardless of whether or not there is a security appliance, and a cloud computing device To a recording medium.

In general, cloud computing technology can provide on-demand outsourcing services of information technology resources using the Internet. The cloud is a server that can be accessed through the Internet. It is used for data storage, processing, network, Service can be provided at once. More specifically, cloud computing technology integrates multiple data centers into a virtualization technology and provides users with specific software, security solutions, and computing capabilities in an on-demand manner, enabling users to access through various terminals such as PCs, mobile phones, PDAs can do.

Korean Patent Laid-Open No. 10-2011-0040604 discloses a cloud computing system in which a user terminal having limited resources can freely use heterogeneous devices using a cloud computing service of a cloud computing server. The cloud computing server may search the virtual device driver for the device using the search information received from the user terminal, and install the searched virtual device driver so that the user terminal can control the device.

Korean Patent No. 10-1285200 discloses a method for providing an IPTV service using cloud computing and a system and an apparatus therefor. Such a cloud computing method can allow IPTV users to store and share desired IPTV contents in a cloud computing environment based on an IPTV service overlay.

These prior art technologies allow a user terminal to access a cloud computing server to control a device desired by the user or to store and share content desired by a user in a cloud computing server. Even if the user terminal and the cloud computing server are disconnected, However, when an application that is independently executed by the user terminal and is required to continuously establish a communication connection with the user terminal is being executed in the cloud computing server, if the connection between the user terminal and the cloud computing server is broken, There is a problem that the application can not be controlled and the application alone is executed. As a result, there is a problem in that an application which is performed independently from the user terminal in the cloud computing server and which requires continuous communication connection with the user terminal can not check the connection state between the user terminal and the cloud computing server and the execution of the application can not be controlled according to the connection state have.

Korean Patent Publication No. 10-2011-0040604 Korean Patent No. 10-1285200

An embodiment of the present invention is to provide a cloud computing method capable of supporting an application operated in a virtual machine to monitor a communication channel regardless of whether or not there is a security device.

An embodiment of the present invention is to provide a cloud computing method in which a communication channel connecting a user terminal agent and a virtual machine agent is set up and an application running in a virtual machine can confirm whether or not a user terminal and a virtual machine are connected.

An embodiment of the present invention is to provide a cloud computing method in which an application can obtain monitoring information by setting a registry related to a file in monitoring that can be accessed by a virtual machine agent.

An embodiment of the present invention is to provide a cloud computing method capable of controlling an application of a virtual machine through an attempt to continue, pause, stop, or recover a communication channel of an application according to a setting of an application when a communication channel is disconnected .

Among the embodiments, the cloud computing method is performed in a cloud computing server that can be connected to a user terminal providing an operating environment of the user terminal agent. The cloud computing method includes the steps of determining a virtual machine corresponding to the user terminal agent, setting an application execution environment in the virtual machine, and operating the virtual machine independently of the user terminal agent through the user terminal agent And allowing the executed application to access the application execution environment to monitor a communication channel between the user terminal agent and the virtual machine.

In one embodiment, the step of determining a virtual machine corresponding to the user terminal agent comprises the steps of checking whether there is a virtual machine already associated with the user terminal agent, and if the associated virtual machine does not already exist, And creating a machine agent.

In one embodiment, the step of determining a virtual machine corresponding to the user terminal agent comprises the steps of: communicating with the virtual machine agent a communication channel, which is formed by the virtual machine agent and the user terminal agent and capable of transmitting display information independent of the computing architecture of the user terminal And a step of setting the display size of the display device.

In one embodiment, the communication channel may correspond to a multi-traffic channel including a heartbeat traffic dedicated channel according to the setting of the user terminal agent.

In one embodiment, the step of setting an application execution environment in the virtual machine includes setting a registry for a monitoring file that includes monitoring information for the communication channel that is recorded by the virtual machine agent and can be provided to the application . ≪ / RTI >

In one embodiment, the step of setting an application execution environment in the virtual machine may further include allowing the application to set the monitoring condition of the communication channel through the registry.

In one embodiment, the step of executing an application that can be operated independently of the user terminal agent may include the step of, when the communication channel is disconnected while the application requests monitoring of the communication channel, And suspending the application that has been paused.

In one embodiment, allowing to monitor the communication channel may include reading the pre-agreed registry with the virtual machine agent, and detecting the monitoring file based on the read registry .

In one embodiment, the monitoring file is dependent on the virtual machine and may be stored in a particular section of the registry or in a memory accessed by the virtual machine.

In one embodiment, allowing to monitor the communication channel may further comprise allowing the application to periodically read the detected monitoring file to take monitoring information of the communication channel.

In one embodiment, when the disconnection of the communication channel is detected through monitoring by the executed application, the step of controlling the application according to the application execution environment and attempting reconnection with the user terminal agent for a specific time .

In embodiments, the cloud computing server may be coupled to a user terminal that provides an operating environment for the user terminal agent. Wherein the cloud computing server comprises a virtual machine determining unit for determining a virtual machine corresponding to the user terminal agent, an application execution environment setting unit for setting an application execution environment for the virtual machine, And a virtual machine agent unit that executes a virtual machine agent that permits the executed application to access the application execution environment and monitor a communication channel between the user terminal agent and the virtual machine, .

In one embodiment, the virtual machine determination unit may set a communication channel capable of transmitting display information independent of the computing architecture of the user terminal.

In one embodiment, the virtual machine determination unit checks whether there is a virtual machine already associated with the user terminal agent, and if the associated virtual machine does not already exist, a new virtual machine and a virtual machine agent To form the communication channel with the terminal agent).

In one embodiment, a channel corresponding to a multi-traffic channel including a heartbeat traffic dedicated channel may be set according to the setting of the user terminal agent.

In one embodiment, the virtual machine agent portion may set a registry for a monitoring file that includes monitoring information for the communication channel that is recorded by the virtual machine agent and can be provided to the application.

In one embodiment, the virtual machine agent unit may control the virtual machine agent to suspend the executed application when the communication channel is disconnected while the application requests monitoring of the communication channel.

In one embodiment, the virtual machine agent unit may read the registry that the executed application has previously agreed with the virtual machine agent, and may detect the monitoring file based on the read registry.

In one embodiment, the virtual machine agent unit may request the user agent agent to recover the communication channel through the virtual machine agent when the communication channel is disconnected through monitoring by the executed application .

Among the embodiments, a recording medium on which a computer program for a cloud computing method performed in a cloud computing server that can be connected to a user terminal providing an operating environment of a user terminal agent, determines a virtual machine corresponding to the user terminal agent The method comprising the steps of: setting an application execution environment in the virtual machine; executing an application that can be operated independently of the user terminal agent in the virtual machine via the user terminal agent; And allowing the user terminal agent to monitor the communication channel between the user terminal agent and the virtual machine.

The cloud computing method according to an embodiment of the present invention determines a virtual machine corresponding to a user terminal, and establishes a communication channel connecting the user terminal agent and the virtual machine agent, thereby confirming whether or not the user terminal is connected to the virtual machine.

In the cloud computing method according to an embodiment of the present invention, a registry related to a file can be set in monitoring that can be accessed by a virtual machine agent, and an application can obtain monitoring information.

The cloud computing method according to an embodiment of the present invention can control an application of a virtual machine through an attempt to continuously perform, pause, stop, or recover a communication channel according to a setting of an application when a communication channel is disconnected.

1 is a block diagram illustrating a cloud computing system according to an embodiment of the present invention
2 is a block diagram illustrating a process of operating the cloud computing system of FIG.
3 is a block diagram illustrating the cloud computing server of FIG.
4 is a flowchart illustrating a communication channel monitoring process performed by the cloud computing server shown in FIG.
FIG. 5 is a flowchart illustrating a communication channel monitoring process performed by the cloud computing server shown in FIG. 4 in more detail.

The description of the present invention is merely an example for structural or functional explanation, and the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, the embodiments are to be construed as being variously embodied and having various forms, so that the scope of the present invention should be understood to include equivalents capable of realizing technical ideas. Also, the purpose or effect of the present invention should not be construed as limiting the scope of the present invention, since it does not mean that a specific embodiment should include all or only such effect.

Meanwhile, the meaning of the terms described in the present application should be understood as follows.

The terms "first "," second ", and the like are intended to distinguish one element from another, and the scope of the right should not be limited by these terms. For example, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

It is to be understood that when an element is referred to as being "connected" to another element, it may be directly connected to the other element, but there may be other elements in between. On the other hand, when an element is referred to as being "directly connected" to another element, it should be understood that there are no other elements in between. On the other hand, other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

It is to be understood that the singular " include " or "have" are to be construed as including the stated feature, number, step, operation, It is to be understood that the combination is intended to specify that it does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

In each step, the identification code (e.g., a, b, c, etc.) is used for convenience of explanation, the identification code does not describe the order of each step, Unless otherwise stated, it may occur differently from the stated order. That is, each step may occur in the same order as described, may be performed substantially concurrently, or may be performed in reverse order.

The present invention can be embodied as computer-readable code on a computer-readable recording medium, and the computer-readable recording medium includes all kinds of recording devices for storing data that can be read by a computer system . Examples of the computer-readable recording medium include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and also implemented in the form of a carrier wave (for example, transmission over the Internet) . In addition, the computer-readable recording medium may be distributed over network-connected computer systems so that computer readable codes can be stored and executed in a distributed manner.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used predefined terms should be interpreted to be consistent with the meanings in the context of the related art and can not be interpreted as having ideal or overly formal meaning unless explicitly defined in the present application.

1 is a block diagram illustrating a cloud computing system according to an embodiment of the present invention.

Referring to FIG. 1, a cloud computing system 100 includes a user terminal 110, security equipment 120, and a cloud computing server 130. Here, the user terminal 110 is connected to the cloud computing server 130 after passing through the security device 120 through a network (e.g., the Internet).

The user terminal 110 may correspond to a computing device capable of executing an application in cooperation with the cloud computing server 130. [ For example, the user terminal 110 may correspond to a desktop, a laptop, a smart phone, or a tablet personal computer. The user terminal 110 may execute the user terminal agent 210 before or simultaneously with execution of the application, and may interwork with the cloud computing server 130 through the virtual machine agent 230.

The security device 120 may correspond to a physical network device necessary for the user terminal 110 to interact with the cloud computing server 130. For example, the security device 120 may correspond to a firewall, and the firewall may protect the information assets of the internal network from an abnormal and unauthorized access from the outside, and may block the inflow of various harmful information. The security appliance 120 may allow or block transmission of data between the external network (i.e., the user terminal side) and the internal network (i.e., the cloud computing server side). More specifically, the security device 120 may block direct communication between the user terminal 110 and applications executed in the cloud computing server 130. [

The cloud computing server 130 may correspond to a computing device that can perform a specific task in conjunction with the user terminal 110, and a specific task may correspond to a process controlled by the user terminal 110. The cloud computing server 130 manages a virtual machine pool 140 that includes at least one virtual machine 142 that corresponds to a user terminal 110. In one embodiment, the virtual machine 142 may correspond one-to-one with the user terminal 110. In another embodiment, the virtual machine 142 may correspond one-to-one with an application at the user terminal 110, in which case the user terminal 110 may cooperate with the plurality of virtual machines 142 at the same time.

2 is a block diagram illustrating a process of operating the cloud computing system of FIG.

2, an operation process of the user terminal 110 will be described.

The user terminal 110 may execute the user terminal agent 210 before or concurrently with execution of an application to be associated with the cloud computing server 130. The user terminal agent 210 may correspond to a process running on the user terminal 110 and may monitor the user terminal 110 or may operate in conjunction with the virtual machine 142, Can be controlled.

In one embodiment, the user terminal agent 210 may be designed with security appliance 120 in between the user terminal 110 and the virtual machine 142 for security of the cloud computing server 130. For example, the user terminal agent 210 may be a constraint of the security appliance 120 because the security appliance 120 may disable direct communication with the virtual machine 142 created in the cloud computing server 130, It can be designed to accommodate the protocol. That is, the user terminal agent 210 accesses the cloud computing server 130 according to a predetermined constraint or protocol with the security appliance 120 to perform communication between the user terminal agent 210 and the virtual machine 142 .

Next, an operation process of the cloud computing server 130 will be described with reference to FIG.

The cloud computing server 130 manages the virtual machine pool 140 that can be connected to the user terminal agent 210 via the network. Herein, the virtual machine pool 140 includes at least one virtual machine 142, and the virtual machine 142 provides an environment 240 of the application 240 that can be operated independently of the user terminal 110, May be newly created, reconnected, or destroyed at the request of the agent 210. That is, even if the virtual machine 142 is disconnected from the user terminal agent 210, the virtual machine 142 can continue execution of the application 240 without being destroyed according to the property of the application 240 or the configuration of the virtual machine.

The virtual machine 142 generates a virtual machine agent 230 and the virtual machine agent 230 transmits necessary data or control signals between the virtual machine 142 and the user terminal 110. Herein, the virtual machine agent 230 may correspond to a process operated in the virtual machine 142, and may monitor the virtual machine 142 or may operate in conjunction with the user terminal 110 to execute an application in the virtual machine 142 (240). The virtual machine agent 230 will be described later with reference to FIG.

Finally, in Fig. 2, a process of generating the communication channel 220 will be described.

When the user terminal agent 210 and the virtual machine agent 230 are respectively executed, a communication channel 220 is established between them. In one embodiment, the user terminal agent 210 may attempt to access the cloud computing server 130 via the network address (e.g., IP address) of the cloud computing server 130. The cloud computing server 130 can determine the virtual machine 142 associated with the user terminal agent 210 and control the user terminal agent 210 to cooperate with the virtual machine agent 230 in the virtual machine 142 have. In another embodiment, the virtual machine agent 230 may communicate with the user terminal agent 210 via a specific network address (e.g., an IP address) of the cloud computing server 130, And can control the user terminal agent 210 to cooperate with the virtual machine agent 230 in the virtual machine 142 via a specific network address.

The communication channel 220 may be designed to transmit display information that is independent of the computing architecture of the user terminal 110. For example, the communication channel 220 may be established via the X11 protocol or the RDP protocol. Here, the display information is visual information that the user can obtain through the user terminal 110.

More specifically, the communication channel 220 may include a heartbeat traffic dedicated channel that transmits only the signal for the heartbeat without loading the traffic channel. The signal for the heartbeat can be used for continuous checking of the communication channel 220 and can be promised in advance between the virtual machine 142 and the user terminal 110. [ Also, the communication channel 220 may be implemented as a single channel for transmitting multi-traffic or multi-channels for transmitting dedicated traffic. Here, a single channel can be used to transmit multi-traffic in a time-division manner, and the virtual machine agent 230 can determine a time-division interval based on the priority of multi-traffic. The multi-channel allocates each dedicated traffic to a unique channel, and the virtual machine agent 230 can determine the priority of the dedicated traffic.

3 is a block diagram illustrating the cloud computing server of FIG.

Referring to FIG. 3, the cloud computing server 130 includes a virtual machine determination unit 310, a virtual machine agent unit 320, and a control unit 330.

The virtual machine determination unit 310 determines a virtual machine 142 corresponding to the user terminal agent 210 when a connection is attempted from the user terminal agent 210. [ More specifically, when the user terminal 110 accesses the cloud computing server 130 via the user terminal agent 210, the cloud computing server 130 determines whether to create a new virtual machine 142, Lt; RTI ID = 0.0 > 142 < / RTI >

Hereinafter, a process of creating a new virtual machine 142 by the virtual machine determining unit 310 will be described.

The virtual machine determination unit 310 obtains a unique identifier (e.g., an IP address) of the user terminal 110 from the user terminal agent 210 when a connection is attempted from the user terminal 110. [ The virtual machine determining unit 310 detects whether or not the virtual machine 142 associated with the unique identifier of the user terminal 110 is present and, if there is no corresponding virtual machine 142 corresponding to the user terminal 110, A new virtual machine 142 corresponding to the virtual machine 110 is newly created. The virtual machine 142 generates the virtual machine agent 230 when the virtual machine 142 corresponding to the user terminal 110 is newly created and transmits the communication channel between the virtual machine agent 230 and the user terminal agent 210 220 are set.

Hereinafter, a process of reconnecting the existing virtual machine 142 to the virtual machine determination unit 310 will be described.

The virtual machine determining unit 310 obtains a unique identifier (e.g., an IP address) of the user terminal 110 from the user terminal agent 210 when a server connection is attempted from the user terminal 110. [ The virtual machine determining unit 310 detects the presence or absence of the virtual machine 142 associated with the unique identifier of the user terminal 110 and determines whether there is an associated virtual machine 142 corresponding to the user terminal 110 And connects the virtual machine 142 to the user terminal 110 again. The virtual machine 142 establishes a communication channel 220 between the virtual machine agent 230 of the virtual machine and the user terminal agent 210 that is already associated when the user terminal 110 is connected to the associated virtual machine 142 .

The virtual machine agent unit 320 includes an application environment setting module 340, an application control module 350, a communication channel monitoring module 360 and a communication channel restoring module 370.

The application environment setting module 340 sets an application execution environment in the virtual machine 142. Here, the application execution environment is stored in the registry and includes monitoring file information, monitoring conditions, and application execution conditions.

The registry is set by the application environment setting module 340 during the creation or operation of the virtual machine 142 and is used to provide the location of the monitoring file when an application in the virtual machine 142 wants to detect the monitoring file . In one embodiment, the registry can be set to an [identifier, value] pair; for example, the identifier can correspond to an Application Execution Environment (e.g., appenv) appenv / time20140312).

The application environment setting module 340 may set information on the monitoring file in the registry. The monitoring file includes monitoring information for the communication channel 220 that can be recorded by the virtual machine agent 230 and provided to the application 240. The monitoring information includes the communication state between the user terminal agent 210 and the virtual machine agent 230 recorded through monitoring on the communication channel 220. [ Here, the communication state may simply indicate a normal or abnormal state, and the normal state may indicate the data transmission bandwidth together in more detail.

In one embodiment, the monitoring file may be periodically updated by the virtual machine agent 230. Also, in one embodiment, the monitoring file may be implemented as a file having shareable access rights. That is, an application in the virtual machine 142 can simultaneously read the monitoring file even if the monitoring file is opened by the virtual machine agent 230.

In one embodiment, the monitoring file may be generated dependent on each of the virtual machines 142. That is, the monitoring file can not be accessed by an application in another virtual machine 142, and can also be automatically deleted by the virtual machine 142 at the expiration of the virtual machine 142.

The application environment setting module 340 may set the monitoring condition of the communication channel 220 in the registry. Here, the monitoring condition may include a monitoring check period and a monitoring time limit. The monitoring and checking period represents a period of time during which the virtual machine agent 230 grasps the state of the communication channel 220 and the monitoring time limit represents a time for ensuring continuous execution of the application when a temporary abnormality occurs in the communication channel 220. For example, the virtual machine agent 230 may check the status of the communication channel 220 every 30 seconds and record the status of the communication channel 220 in the monitoring file if the monitoring checking period is set to 30 seconds. The virtual machine agent 230 can pause or stop the application 240 of the virtual machine 142 for at least 120 seconds after an anomaly occurs in the communication channel 220 if the monitoring time limit is set to 120 seconds. You can try to execute without continuing.

The application environment setting module 340 can set an application execution condition in the registry. The application execution condition is used to determine the execution mode of the application 240 when an error occurs in the communication channel 220. In one embodiment, And may include performing, pausing, or aborting execution until use is required.

For example, the application may be performed for a given time period from the time when the application execution condition corresponds to the execution for a specific time, from the time when the abnormality of the communication channel 220 is confirmed, and if the communication channel 220 is not recovered, .

In another example, if the application execution condition corresponds to performing until the use of the communication channel 220 is required, the application 240 does not need to use the communication channel 240 even if an abnormality in the communication channel 220 is confirmed The application 240 is executed until the time when the use of the communication channel 220 is not required and the communication channel 220 is not recovered until the time point when the use of the communication channel 220 is not completed, Or may be interrupted. The point of time when the use of the communication channel 220 is not required is that the connection to the user terminal 110 is not required to execute the application 240 and the application 240 can be independently executed.

For example, if the application execution condition is a pause or stop, the application 240 may be temporarily stopped when communication with the user terminal 110 is requested at a point of time when the abnormality of the communication channel 220 is confirmed . If the connection of the communication channel 220 does not return to a normal state during the monitoring time limit while the application 240 is paused, the application 240 may be stopped.

The application control module 350 executes the application 240 that can be operated independently of the user terminal agent 210 to the virtual machine 142 via the user terminal agent 210. [ That is, the virtual machine 142 can proceed with the execution of the application 240 according to the characteristics of the application 240 or the settings of the virtual machine 142 regardless of the connection with the user terminal agent 210. Here, the characteristics of the application 240 may include an application execution condition set by the application environment setting module 340. However, if the communication channel 220 is disconnected in a state in which the application 240 requests the monitoring of the communication channel 220 regardless of the application execution condition setting, the application control module 350 determines that the virtual machine agent 230 May suspend the application 240.

Hereinafter, a process of controlling the application 240 when the application control module 350 generates an error in the communication channel 220 will be described.

The application control module 350 can continue to execute, pause, or stop the application 240 if it is detected that the communication channel 220 is disconnected through monitoring by the executed application 240. [

For example, when the disconnection of the communication channel 220 is detected and the application 240 is continuously executed according to the application execution condition, the application is continuously executed independently in the virtual machine 142 regardless of the user terminal, The communication channel 220 can be continuously monitored. In another example, if the disconnection of the communication channel 220 is detected and the application 240 is paused according to the application enforcement conditions, the application 240 continues to monitor the communication channel 220 and monitor the communication channel 220 220 is restored and the connection is detected again, the application 240 that has been temporarily stopped can be executed from the time of the temporary stop. For example, if the disconnection of the communication channel 220 is detected and the application 240 is interrupted according to the application execution condition, the monitoring record of the connection state of the communication channel 220 by the virtual machine agent 230 is interrupted And monitoring of the communication channel 220 by the application may also be interrupted. In addition, the application 240 can be executed from the beginning when the application 240 interrupted by the user terminal is executed again.

The communication channel monitoring module 360 accesses the application execution environment, detects the monitoring file information and the monitoring condition, and updates the monitoring file including the state of the communication channel 220 according to the monitoring and checking period. As a result, the application 240 can access the application execution environment, detect the monitoring file information, read the monitoring file, and monitor the communication channel 220.

More specifically, the communication channel monitoring module 360 may allow the application 240 running in the virtual machine 142 to monitor the communication channel 220 through the monitoring file. In one embodiment, the monitoring file may be stored in a memory that is implemented within a particular section of the registry, or is accessed by the virtual machine 142, depending upon it.

The communication channel recovery module 370 performs recovery of the communication channel 220 when an error occurs in the communication channel 220. In one embodiment, the communication channel recovery module 370 may attempt to reconnect with the user terminal agent 210 for a certain period of time when it is detected that the communication channel 220 is broken through monitoring by the application 240.

The control unit 330 controls the operations of the virtual machine determination unit 310 and the virtual machine agent unit 320 and the flow of data.

4 is a flowchart illustrating a communication channel monitoring process performed by the cloud computing server shown in FIG.

The virtual machine determination unit 310 determines a virtual machine corresponding to the user terminal agent 210 (step S401). The virtual machine determining unit 310 determines at least one virtual machine of the cloud computing server 130 corresponding to the user terminal agent 210 according to the application 240 performed by the user terminal agent 210 142). When the virtual machine 142 corresponding to the user terminal agent 210 is determined, the virtual machine agent 230 of the virtual machine 142 is connected to the user terminal agent 210 to form the communication channel 220.

The application environment setting module 340 sets the execution environment of the application 240 in the virtual machine 142 (step S402). Here, the application environment setting module 340 may set the registry of the monitoring file of the communication channel 220 and set the monitoring condition through the registry.

The application control module 350 executes the application 240 through the user terminal agent 210 (step S403). Herein, the application 240 is operated independently of the user terminal agent 210 and the application 240 is able to operate the application 240 or the virtual machine 142 even if the virtual machine 142 is disconnected from the user terminal agent 210 142) Execution continues without extinguishing according to the setting.

The communication channel monitoring module 360 accesses the application execution environment and monitors the communication channel 220 (step S404). More specifically, the application 240 monitors the communication channel 220 by detecting the monitoring file recorded by the virtual machine agent 230 through the registry according to the application environment setting.

FIG. 5 is a flowchart illustrating a communication channel monitoring process performed by the cloud computing server shown in FIG. 4 in more detail.

The virtual machine determination unit 310 determines whether there is a virtual machine 142 already associated with the user terminal agent 210 to determine the virtual machine 142 corresponding to the user terminal agent 210 (step S501) .

If there is a virtual machine 142 already associated with the user terminal agent 210, the virtual machine 142 associated with the user terminal 110 is connected to the user terminal 110 again (step S502). More specifically, the user terminal agent 210 of the user terminal 110 is connected to the virtual machine agent 230 of the already associated virtual machine 142 and the connection of the user terminal agent 210 and the virtual machine agent 230 To form a communication channel 220.

If there is no virtual machine 142 already associated with the user terminal agent 210, a new virtual machine 142 is created (step S503). More specifically, the newly created virtual machine 142 creates a virtual machine agent 230 and the created virtual machine agent 230 and the user terminal agent 210 are connected to form a communication channel 220.

The application environment setting module 340 sets a registry related to the monitoring file (step S504). Since the application 240 can not directly monitor the communication channel 220, the application 240 can detect a monitoring file by setting a registry accessible to the application 240.

The application environment setting module 340 sets monitoring conditions according to the characteristics of the application (step S505).

The application control module 350 executes the application (step S506).

The communication channel monitoring module 360 detects a preset registry with the virtual machine agent 230 (step S507).

The communication channel monitoring module 360 detects the monitoring file (step S508).

The communication channel monitoring module 360 collects monitoring information (step S509). More specifically, the monitoring information may include information recorded continuously by the virtual machine agent 230 with respect to the connection state of the communication channel 220, the communication channel recorded by the virtual machine agent 230 at the monitoring check cycle time of the application 220) connection state.

The communication channel monitoring module 360 checks whether the communication channel 220 is disconnected through the monitoring information (step S510). More specifically, if the connection state of the communication channel 220 recorded by the virtual machine agent 230 is normal at the monitoring check time of the application 240, it is determined that the communication channel 220 is not disconnected. If the communication channel 220 is abnormal, ) Is cut off.

If it is confirmed through the monitoring information that the communication channel 220 has not been disconnected, it is confirmed whether to change the location of the registry (step S511). More specifically, if the storage space of the registry is used up and the monitoring information recorded by the virtual machine agent 230 can not be stored in the existing registry, the monitoring information is continuously stored .

More specifically, if the storage space of the registry remains and the location of the registry is not changed, the process moves to step S509 and collects the monitoring information again to check whether the communication channel is disconnected. When there is no storage space in the registry and the location of the registry is changed, the location of the registry is changed, and the process moves to step S507 to detect the changed registry. More specifically, the virtual machine agent 230 records the monitoring information in the changed registry, and the application 240 can access the changed registry to detect the monitoring file.

When it is confirmed that the communication channel 220 is disconnected through the monitoring information, the application control module 350 controls the application according to the execution condition of the application being executed (step S512).

When the application is suspended, the communication channel recovery module 370 attempts to recover the communication channel (step S513). More specifically, the communication channel recovery module 370 may attempt to reconnect with the user terminal agent 210 for a certain period of time when it is detected that the communication channel 220 is disconnected through monitoring by the application 240.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the present invention as defined by the following claims It can be understood that

100: Cloud computing system 110: User terminal
120: security device 130: cloud computing server
140: Virtual Machine Pool 142: Virtual Machine
210: user terminal agent 220: communication channel
230: Virtual Machine Agent 240: Application
310: Virtual Machine Decision Unit 320: Virtual Machine Agent Unit
330:
340: Application environment setting module 350: Application control module
360: communication channel monitoring module 370: communication channel restoring module

Claims (20)

A cloud computing method performed in a cloud computing server (130) that can be connected to a user terminal providing an operating environment of a user terminal agent (210)
Determining a virtual machine (142) corresponding to the user terminal agent (210);
Setting an application execution environment in the virtual machine 142;
Executing an application (240) in the virtual machine (142) through the user terminal agent (210), the application (240) being operable independently of the user terminal agent (210); And
Allowing the executed application (240) to access the application execution environment to monitor the communication channel (220) between the user terminal agent (210) and the virtual machine (142).
2. The method of claim 1, wherein determining a virtual machine (142) corresponding to the user terminal agent (210)
Checking whether there is a virtual machine 142 and a virtual machine agent 230 already associated with the user terminal agent 210; And
Creating a new virtual machine 142 and a virtual machine agent 230 if the associated virtual machine 142 does not already exist.
3. The method of claim 2, wherein determining the virtual machine (142) corresponding to the user terminal agent (210)
Further comprising setting a communication channel (220) through which the virtual machine determination unit (310) can transmit display information independent of the computing architecture of the user terminal,
Wherein the communication channel (220) is formed between the virtual machine agent (230) and the user terminal agent (210).
4. The method of claim 3, wherein the communication channel (220)
And a multi-traffic channel including a heartbeat traffic dedicated channel according to a setting of the user terminal agent (210).
The method of claim 1, wherein the step of setting an application execution environment in the virtual machine (142)
Setting a registry for a monitoring file that includes monitoring information for the communication channel (220) that is recorded by the virtual machine agent (230) and can be provided to the application (240) Computing method.
6. The method of claim 5, wherein the step of setting an application execution environment in the virtual machine (142)
Further comprising allowing the application (240) to set the monitoring condition of the communication channel (220) via the registry.
3. The method of claim 1, wherein executing an application (240) that can be operated independently of the user terminal agent
If the connection of the communication channel 220 is disconnected while the application 240 requests monitoring of the communication channel 220, the virtual machine agent 230 controls to suspend the executed application 240 The method comprising the steps of:
The method of claim 1, wherein allowing to monitor the communication channel (220)
The executed application 240 reading a registry including a monitoring file for the communication channel 220; And
And detecting a monitoring file based on the read registry.
9. The method of claim 8,
Is stored in a memory that is dependent on the virtual machine (142) and is accessed by a particular section of the registry or the virtual machine (142).
9. The method of claim 8, wherein allowing to monitor the communication channel (220)
Further comprising the step of allowing the application (240) to periodically read the detected monitoring file to take monitoring information of the communication channel (220).
The method according to claim 1,
If the disconnection of the communication channel 220 is detected through the monitoring by the executed application 240, the control unit 240 controls the application 240 according to the application execution environment and notifies the reconnection to the user terminal agent 210 at a specific time Lt; RTI ID = 0.0 > a < / RTI > cloud computing method.
A cloud computing server (130) capable of being connected to a user terminal providing an operating environment of a user terminal agent (210)
A virtual machine determination unit (310) for determining a virtual machine (142) corresponding to the user terminal agent (210);
An application execution environment is set in the virtual machine 142 and an application 240 that can be operated independently of the user terminal agent 210 is executed in the virtual machine 142 through the user terminal agent 210 A virtual machine agent unit 320 that allows the executed application 240 to access the application execution environment and monitor a communication channel 220 between the user terminal agent 210 and the virtual machine 142, A cloud computing server (130).
13. The method according to claim 12, wherein the virtual machine determination unit (310)
And checks whether there is a virtual machine 142 and a virtual machine agent 230 already associated with the user terminal agent 210. If the associated virtual machine 142 does not already exist, the new virtual machine 142 and the virtual machine 142 Agent (230) to the cloud computing server (130).
14. The apparatus of claim 13, wherein the virtual machine determination unit (310)
Establishing a communications channel (220) capable of transmitting display information independent of the computing architecture of the user terminal,
Wherein the communication channel (220) is formed between the virtual machine agent (230) and the user terminal agent (210).
15. The method of claim 14, wherein the communication channel (220)
And a multi-traffic channel including a heartbeat traffic dedicated channel according to the setting of the user terminal agent (210).
13. The system according to claim 12, wherein the virtual machine agent unit (320)
(230) and establishes a registry for the monitoring file that includes monitoring information for the communication channel (220) that can be provided to the application (240). ≪ RTI ID = 0.0 & ).
13. The system according to claim 12, wherein the virtual machine agent unit (320)
If the connection of the communication channel 220 is disconnected while the application 240 requests monitoring of the communication channel 220, the virtual machine agent 230 controls to suspend the executed application 240 And the cloud computing server (130).
13. The system according to claim 12, wherein the virtual machine agent unit (320)
The executed application (240) reads a registry including a monitoring file for the communication channel (220), and detects a monitoring file based on the read registry.
13. The system according to claim 12, wherein the virtual machine agent unit (320)
When the disconnection of the communication channel 220 is detected through the monitoring by the executed application 240, the executed application 240 notifies the user terminal agent 210 via the virtual machine agent 230 of the communication (220) to the cloud computing server (130).
A computer program for a cloud computing method performed in a cloud computing server (130) that can be connected to a user terminal providing an operating environment of a user terminal agent (210)
Determining a virtual machine (142) corresponding to the user terminal agent (210);
Setting an application execution environment in the virtual machine 142;
Executing an application (240) in the virtual machine (142) through the user terminal agent (210), the application (240) being operable independently of the user terminal agent (210); And
Allowing the executed application 240 to access the application execution environment and monitor the communication channel 220 between the user terminal agent 210 and the virtual machine 142. [ A recording medium on which a computer program is recorded.

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