KR20230100901A - Edge service management apparatus and control method thereof - Google Patents

Abstract

The present invention relates to an edge service management device and a control method thereof. A control method of an edge service management apparatus according to the present invention includes registering a health management policy for each edge service; collecting consumption of resources used by each edge service; determining whether a correlation between consumption amounts of the collected plurality of resources violates a health management policy corresponding to each edge service; transmitting a health check signal to an edge service whose correlation of consumed amounts of resources violates a health management policy as a result of the determination; and re-driving the corresponding edge service when a response failure from the edge service occurs in response to the health check signal.

Description

Edge service management device and its control method {EDGE SERVICE MANAGEMENT APPARATUS AND CONTROL METHOD THEREOF}

The present invention relates to an edge service management device and a control method thereof, and more particularly, to an edge service management device and a control method for managing a health state of an edge service.

Cloud computing, also known as cloud computing, refers to the provision of computing services such as servers, storage, software, and analytics over the "cloud," or the Internet. For example, Naver's Endlive, Google Docs, and OneDrive, which are installed together with Windows, are representative examples of such services, and many users are currently using cloud functions easily.

However, cloud computing also has several problems.

As the number of people using cloud services increases exponentially, they begin to exceed the amount of data that can be processed by servers and data centers, and in addition, data delays occur in the process of analyzing and transmitting the collected data. .

Edge computing has been introduced as one of methods to solve problems related to the conventional cloud computing, particularly data processing speed and capacity.

Edge computing, also called fog computing or MEC (Mobile Edge Computing), refers to computing at the end device, that is, the 'edge'.

This means that the computing device is located close to the terminal devices used by users, rather than a place where data is processed and computed in a far away data center like cloud computing.

In particular, if equipment located at the 'edge' so far only plays the role of data transmission or data storage, edge computing adds computing power to this 'edge' equipment to provide data analysis or other various services. there is.

Such edge computing can be used as a modified form of cloud rather than being configured alone, and this can be referred to as cloud edge computing.

However, various services may be provided in a system created to implement such cloud edge computing, that is, a cloud edge system. For example, a service provision base may be a 'container'.

Here, a container is a kind of virtualization technology, and since it includes data, programs, and information necessary for providing each service, the same container is widely used because it can perform the same function regardless of the version of the server operating system.

Each of the services provided in the cloud edge system may be referred to as an edge service or an edge service instance, and each provides a service while consuming resources in the cloud edge system.

However, a way to reliably check whether an error has occurred in the edge service is to transmit a kind of monitoring signal (ie, a health check signal) to check whether the edge service sends a normal response.

That is, it periodically calls a specific URL of the edge service to check whether the response is normal, and if it is not processed normally, the container or pod of the edge service is restarted to normalize the service.

However, in this method, if there is a lot of service traffic, periodic checks can be a load factor on the service instance, and if there is a lot of service traffic, if the response to the test request is delayed, there is a possibility of misdiagnosing it as an edge service failure.

Accordingly, there is a demand for a method of increasing the accuracy of the health check signal and minimizing the load on the edge service when using the health check signal.

Patent Publication No. 10-2021-0098724

The present invention has been devised to solve the above conventional disadvantages, and its purpose is to prevent indiscriminate use of the health check signal and to utilize the health check signal at a more accurate time, thereby minimizing the load of the edge service and accurately monitoring its status. It is to provide an edge service management device capable of diagnosing and taking action and a control method thereof.

To achieve the above object, a control method of an edge service management apparatus according to the present invention includes registering a health management policy for each edge service; collecting consumption of resources used by each edge service; determining whether a correlation between consumption amounts of the collected plurality of resources violates a health management policy corresponding to each edge service; transmitting a health check signal to an edge service whose correlation of resource consumption violates a health management policy as a result of the determination; The method may include re-driving the corresponding edge service when a response failure occurs from the edge service in response to the health check signal.

Here, the health check signal is repeatedly transmitted, and when the number of failed responses to the health check signal exceeds a preset value, the corresponding edge service may be re-driven.

Here, if a response failure from the edge service occurs in response to the health check signal, the corresponding edge service may be deleted, recreated, and operated.

Here, when a response from the edge service succeeds in response to the health check signal, the method may further include updating a correlation between consumption amounts of a plurality of pre-registered resources corresponding to the corresponding edge service.

In order to achieve the above object, an edge service management apparatus according to the present invention includes a registration unit registering a health management policy for each edge service; a resource consumption collection unit for collecting consumption of resources used by each edge service; a policy violation determining unit that determines whether a correlation between the consumption amounts of the plurality of resources collected by the resource consumption amount collection unit violates a health management policy corresponding to each edge service; a check signal transmission unit that transmits a health check signal to an edge service in which a correlation between consumption amounts of resources violates a health management policy as a result of the determination of the policy violation determination unit; An edge service management unit that restarts the corresponding edge service when a response failure occurs from the edge service to the health check signal of the check signal transmission unit.

Here, the check signal transmitter may repeatedly transmit the health check signal, and the edge service manager may restart a corresponding edge service when the number of failed responses to the health check signal exceeds a preset value.

Here, the edge service management unit may delete, recreate, and operate the corresponding edge service when a response failure occurs from the edge service to the health check signal.

Here, the registration unit may update a correlation between consumption amounts of a plurality of pre-registered resources corresponding to the corresponding edge service when a successful response occurs from the edge service to the health check signal of the check signal transmission unit.

As described above, according to the present invention, before transmitting the health check signal, it is determined whether the relationship between resource consumption of each edge service violates the health management policy corresponding to the edge service, thereby preventing indiscriminate transmission of the health check signal. can do.

That is, since the indiscriminate transmission of the health check signal rather increases the load of each edge service, the health check signal is transmitted only when the correlation between the resource consumption amounts violates the preset health management policy to determine if each edge service has a malfunction. By determining the edge service, it is possible to easily detect an edge service having a functional failure while minimizing an increase in the load of the edge service.

1 is a schematic configuration diagram of an entire system including an edge service management device according to an embodiment of the present invention;
2 is a functional block diagram of the edge service management device of FIG. 1;
3 to 4 are control flow diagrams of the edge service management apparatus of FIG. 1 .

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Hereinafter, each embodiment according to the present invention is only one example to aid understanding of the present invention, and the present invention is not limited to these embodiments. In particular, the present invention may be composed of at least one or more combinations of individual components, individual functions, or individual steps included in each embodiment.

In particular, although alphabets such as '(a)' are included in some claims of the claims for convenience, these alphabets do not prescribe the order of each step.

In addition, each signal referred to in each embodiment according to the present invention may refer to one signal transmitted through a single connection or the like, but may also refer to a group of signals transmitted for the purpose of performing a specific function described later. . That is, in each embodiment, a plurality of signals transmitted at predetermined time intervals or transmitted after receiving a response signal from the counterpart device may be expressed as one signal name for convenience.

A schematic configuration of the entire system including the edge service management apparatus 100 according to an embodiment of the present invention is as shown in FIG.

In the same figure, a plurality of edge services 200 are disclosed, and as described above, these edge services 200 may mean services provided in the cloud edge system to provide a specific service.

In particular, in this embodiment, the edge service 200 may be an instance of the edge service 200 or an abstract concept grouped by instance providing the same service.

The edge service management device 100 performs processing such as creating, removing, or updating each edge service 200, and in this embodiment, the edge service management device 100 and the edge services 200 are separate Although being configured as a device and connected through a network is an example, the edge services 200 may be driven in the edge service management device 100 .

An example of a specific functional block of the edge service management device 100 is shown in FIG. 2 .

As shown in the figure, the edge service management device 100 includes a registration unit 110, a resource consumption amount collection unit 120, a policy violation determination unit 130, a check signal transmission unit 140, and an edge service management unit 150. It can be configured to include.

Here, the registration unit 110 performs a function of registering health management policies for each edge service 200 .

Here, the health management policy is a condition or criterion for transmitting a health check signal to check whether each edge service 200 operates normally, and may include, for example, a reference value for resource consumption or a correlation between these resource consumption amounts. there is.

Here, the resources naturally include devices or network resources consumed by each edge service 200 to provide services. For example, CPU (Central Processing Unit), memory, communication traffic, etc. may be included in these resources, and more Furthermore, the amount of log records may also be included.

Therefore, in the health management policy, there is a mapping relationship such as minimum CPU usage/maximum CPU usage according to the amount of network traffic, maximum/minimum log creation amount depending on the amount of network traffic, minimum memory usage/maximum memory usage according to the amount of network traffic, etc. can be included

The resource consumption collection unit 120 performs a function of collecting consumption of resources used by each edge service 200 .

For example, the resource consumption collection unit 120 may collect CPU usage, memory usage, or network traffic consumption by each edge service 200 .

The policy violation determining unit 130 has a function of determining whether the correlation between consumption amounts of a plurality of resources collected by the resource consumption amount collection unit 120 violates the health management policy corresponding to each edge service 200. do

For example, the policy violation determination unit 130 determines the relationship between the amount of network traffic and CPU usage collected for a specific edge service 200 and the amount of network traffic and CPU included in the health management policy corresponding to the edge service 200. It is possible to determine whether or not they match each other by comparing the relationship between usage amounts.

For example, if the minimum value of CPU utilization is 15% and the maximum value is 25% in response to 10 Mbps to 20 Mbps of traffic volume in the health management policy corresponding to a specific edge service 200, the collected data for the corresponding edge service 200 When the real-time traffic amount is 15 Mbps and the CPU usage rate is 30%, the policy violation determination unit 130 may determine that the policy is violated because the CPU usage rate is not in the range of 15% to 25%.

The check signal transmission unit 140 transmits a health check signal to the edge service 200 determined to be in violation of the policy as a result of the determination by the policy violation determination unit 130 .

Here, the health check signal is a signal transmitted to each edge service 200 to check whether each edge service 200 is normally operating. The corresponding health check signal may be transmitted to a URL (Uniform Resource Locator) including a port number being used.

As such, since transmitting a health check signal to check whether a specific edge service 200 operates normally corresponds to a known technique, a detailed description thereof will be omitted.

The check signal transmission unit 140 may repeatedly transmit such a health check signal, for example, may transmit the health check signal 5 times at intervals of 0.5 seconds.

The edge service management unit 150 performs a function of restarting the corresponding edge service 200 when a response failure occurs from the edge service 200 to the health check signal of the check signal transmission unit 140 .

For example, when a response failure occurs from the edge service 200 in response to a health check signal, the edge service management unit 150 may delete, recreate, and operate the corresponding edge service 200 .

In particular, as described above, the health check signal may be periodically and repeatedly transmitted to each edge service 200 by the check signal transmission unit 140. When the number of response failures exceeds a preset value, the corresponding edge service 200 may be restarted.

On the other hand, the above-described registration unit 110, when a successful response from the edge service 200 to the health check signal of the check signal transmission unit 140 occurs, a plurality of pre-registered resources corresponding to the corresponding edge service 200. It is possible to update the correlation of consumption for

For example, assuming that the health management policy corresponding to a specific edge service 200 corresponds to a traffic volume of 10 Mbps to 20 Mbps, the minimum value of CPU utilization is 15% and the maximum value is 25%. When the collected real-time traffic amount is 15 Mbps and the CPU usage rate is 30%, the health check signal can be transmitted to the corresponding edge service 200 by the check signal transmission unit 140 as described above. When a normal response is received from the corresponding edge service 200 before the number of repeated transmissions, the registration unit 110 sets the health management policy corresponding to the corresponding edge service 200 to the minimum CPU usage rate in response to the traffic volume of 10 Mbps to 20 Mbps. This 15%, the maximum value can be updated to 30%.

Hereinafter, a control flow of the edge service management apparatus 100 according to an embodiment of the present invention will be described with reference to FIGS. 3 and 4 .

First, referring to FIG. 3 , a process of determining a condition for transmitting a health check signal will be described.

First, it is assumed that a health management policy is registered for each edge service 200 (step S1).

The edge service management device 100 periodically monitors CPU usage and network traffic of each edge service 200 (step S3).

Next, the edge service management device 100 compares CPU usage for network traffic of each edge service 200 with the health management policy of the corresponding edge service 200 (step S5), and determines whether a service check is required (step S5). S7).

For example, the edge service management apparatus 100 may determine that a service check is necessary when CPU usage compared to network traffic of a specific edge service 200 is out of a range set in the health management policy of the corresponding edge service 200 .

As a result of the determination, when it is determined that service check is necessary (step S7), the edge service management apparatus 100 generates and transmits a health check signal to the corresponding edge service 200. This can be referred to as a kind of URL calling process (step S9).

4 describes a process after transmission of such a health check signal.

After transmitting the health check signal (step S11), the edge service management apparatus 100 sets a health management policy corresponding to the corresponding edge service 200 when a normal response is received from the corresponding edge service 200 (step S13). It is updated (step S15). In this case, resource usage of the edge service 200 collected in FIG. 3 may be used to update the health management policy.

On the other hand, after transmitting the health check signal (step S11), if a normal response is not received from the corresponding edge service 200 (step S13), the edge service management device 100 determines whether the number of allowed errors has been exceeded (step S13). S17), otherwise, after a predetermined time delay (step S19), the health check signal is again transmitted to the corresponding edge service 200 (step S11), and this process is repeated.

If, after transmitting the health check signal (step S11), the number of times that a normal response is not received from the corresponding edge service 200 exceeds a preset value (step S17), the edge service management device 100 sends the corresponding edge service (200) is deleted and then recreated to be re-driven (step S21).

Meanwhile, it goes without saying that the process of performing each of the above-described embodiments may be performed by a program or application stored in a predetermined recording medium (for example, computer-readable). Here, the recording medium includes all of an electronic recording medium such as RAM (Random Access Memory), a magnetic recording medium such as a hard disk, an optical recording medium such as a CD (Compact Disk), and the like.

At this time, the program stored in the recording medium may be executed on hardware such as a computer or smart phone to perform each of the above-described embodiments. In particular, at least one of the functional blocks of the edge service management device according to the present invention described above may be implemented by such a program or application.

In addition, the present invention is not limited to the specific embodiment described above, but can be implemented by various modifications and variations within the scope of the present invention. It will be apparent that such variations and modifications are included in the present invention provided they come within the scope of the appended claims.

100: edge service management device 200: edge service
110: register 120: resource consumption collection unit
130: policy violation determination unit 140: check signal transmission unit
150: Edge service management unit

Claims (10)

(a) registering a health management policy for each edge service;
(b) collecting consumption of resources used by each edge service;
(c) determining whether a correlation between consumption amounts of the plurality of resources collected in step (b) violates a health management policy corresponding to each edge service;
(d) transmitting a health check signal to an edge service whose correlation of resource consumption violates a health management policy as a result of the determination in step (c);
(e) when a response failure occurs from the edge service to the health check signal in step (d), restarting the corresponding edge service. According to claim 1,
In step (d), the health check signal is repeatedly transmitted;
In step (e), if the number of failed responses to the health check signal exceeds a preset value, the corresponding edge service is restarted. According to claim 1,
In the step (e), when a response failure from the edge service occurs with respect to the health check signal, the corresponding edge service is deleted, recreated, and operated. According to claim 1,
The method further comprises updating a correlation between consumption amounts of a plurality of pre-registered resources corresponding to the corresponding edge service when a response from the edge service succeeds in response to the health check signal in step (d). A control method of an edge service management device. A computer-readable recording medium recording a program for executing the method of any one of claims 1 to 4. An application program stored in a computer readable recording medium in order to execute the method of any one of claims 1 to 4 in combination with hardware. a register registering health management policies for each edge service;
a resource consumption collection unit for collecting consumption of resources used by each edge service;
a policy violation determining unit that determines whether a correlation between the consumption amounts of the plurality of resources collected by the resource consumption amount collection unit violates a health management policy corresponding to each edge service;
a check signal transmission unit that transmits a health check signal to an edge service in which a correlation between consumption amounts of resources violates a health management policy as a result of the determination of the policy violation determination unit;
and an edge service management unit that restarts the corresponding edge service when a response failure occurs from the edge service to the health check signal of the check signal transmission unit. According to claim 7,
The check signal transmitter repeatedly transmits the health check signal;
Wherein the edge service management unit restarts the corresponding edge service when the number of failed responses to the health check signal exceeds a preset value. According to claim 7,
The edge service management unit, characterized in that, when a response failure occurs from the edge service to the health check signal, the edge service is deleted, regenerated, and operated. According to claim 7,
Wherein the registration unit updates a correlation between consumption amounts of a plurality of pre-registered resources in response to the corresponding edge service when a successful response occurs from the edge service to the health check signal of the check signal transmission unit. management device.

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