KR20100079989A - Method for sending and receiving message in message network system - Google Patents

Abstract

PURPOSE: A method for sending and receiving a message in a message network system is provided to minimize transmission delay time between application servers. CONSTITUTION: A plurality of second application servers(200) receives or transmits a message from the first application server(100). A messaging server(300) is respectively connected to both the first application server and the second application server. The first application server includes the first message connector. The first message connector transmits a service request message received from the outside to the messaging server.

Description

METHODO FOR SENDING AND RECEIVING MESSAGE IN MESSAGE NETWORK SYSTEM}

The present invention relates to a messaging network system, and more particularly, to a method of transmitting / receiving a message in a messaging network system.

1 is a diagram illustrating a connection structure of a messaging network system according to the prior art.

As shown in FIG. 1, a prior art messaging network system 10 includes a plurality of first application servers 11, a plurality of second application servers 12, and one or more messaging servers 13.

The first application server 11 and the second application server 12 are terminal nodes that can communicate with each other. For example, a game server, a login server connected to a game server, a ranking server, a database server, and a channel list. It may be implemented as a server, a known server.

The first application server 11 and the second application server 12 are connected to one of the messaging servers 13 constituting the messaging network.

The messaging server 13 performs message transmission / reception between the first application server 11 and the second application server 12 and forms a messaging network connected in a mesh structure to each other. For example, since the first application server 11-a is connected to only one messaging server 13-1, the second application server 12-A to receive a message is different from the messaging server 13-3. If it is connected to the), it operates in a manner that delivers the message to the messaging server (13-2).

In addition, the messaging server 13 stores a message transmitted from the Message Queue (MQ) method, that is, the first application server 11 in the messaging server 13, and delivers the message to the second application server 12 that requests it. It works in a way

However, according to the conventional messaging network system as described above, since the messaging server stores a message in a message queue (MQ) and delivers the message to the requesting application server, the message is delivered from an Internet service requiring a fast user response time. There is a problem that there is a delay time.

In addition, according to the messaging network system according to the prior art, there is a problem that can not expect a consistent user response time due to the fluctuation of the delivery delay time depending on the location of the application server to be communicated.

In addition, according to the messaging network system according to the prior art, when any application server produces a large amount of messages, the messaging server to which the application server is connected is overloaded, and another messaging server can afford the load. In this case, since the load cannot be effectively distributed, performance of all application servers connected to the overloaded messaging server is degraded.

In addition, according to the messaging network system according to the prior art, when the receiving application server is a group, the messaging server sends a message to any application server belonging to the group, traffic is concentrated according to the messaging server to which the application server is connected There is a problem that occurs.

In addition, according to the prior art messaging network system, since messaging servers are connected in a mesh structure, it is necessary to know which messaging server is connected to all applications for effective message delivery. You must exchange the list of applications with another messaging server. This overhead is increased as the number of messaging servers increases, and there is a problem in that a service that needs to support a large amount of traffic cannot expect desired performance even if additional messaging servers are added.

In addition, according to the messaging network system according to the prior art, if any messaging server fails, all application servers connected to the messaging server will fail, and this failure will cause the application server to find and connect to another messaging server. The problem is that the information continues until it is propagated to all other messaging servers.

An embodiment of the present invention is to minimize the number of hops required between the application server and to eliminate the message queue (MQ) to minimize the transmission delay between the application server messaging network system that allows the user of the Internet service fast user response time To provide.

In addition, according to an embodiment of the present invention, since there is no information exchanged between messaging servers, the overhead of the number of messaging servers does not occur, so that the performance of the entire messaging network can be increased constantly as more messaging servers are added. To provide.

In addition, an embodiment of the present invention provides a messaging network system that can be effectively distributed load between the messaging server because the message sent by the application server is evenly distributed to each messaging server.

In addition, an embodiment of the present invention provides a messaging network system capable of immediately sending and receiving messages through another messaging server even if one messaging server fails because each application server on the messaging network is connected to all messaging servers.

As a technical means for achieving the above-described technical problem, a first aspect of the present invention is a messaging network system, a plurality of first application server, a plurality of agents for receiving or transmitting a message from the first application server; And a messaging server connected to each of the second application server and both the first and second application servers, wherein the first and second application servers select the messaging server in a round-robin fashion. Provide a system.

As a technical means for achieving the above technical problem, the second aspect of the present invention provides a method for transmitting and receiving a message in a messaging network system, the method comprising: establishing a connection between a plurality of first application servers and all messaging servers on the messaging network; Establishing a connection between the plurality of second application servers and all the messaging servers on the messaging network, and selecting and transmitting a service request message from the first application server to all the messaging servers on the messaging network in a round robin manner. And selecting and transmitting a response message of the second application server corresponding to the service request message to all the messaging servers on the messaging network in a round robin manner. Provided.

According to one of the problem solving means of the present invention described above, by minimizing the number of hops required between the application server and eliminating the message queue (MQ), it is possible to minimize the transmission delay time between the application server allows the Internet service user to be a fast user You can expect a response time.

In addition, according to one of the other problem solving means of the present invention, since there is no information exchanged between the messaging server, the overhead according to the number of messaging servers does not occur, so that the performance of the entire messaging network is constantly increased as more messaging servers are added. .

In addition, according to one of the other problem solving means of the present invention, since the message sent by the application server is evenly distributed to each messaging server, load balancing between the messaging servers can be effectively made.

In addition, according to one of the other problem solving means of the present invention, since the message delivered by the messaging server is evenly distributed to each application server included in the receiving group, load balancing between the application servers can be effectively achieved.

In addition, according to one of the other problem solving means of the present invention, since each application server on the messaging network is connected to all the messaging server, even if one messaging server fails, it is possible to send and receive messages through another messaging server immediately Has no effect at all.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is "connected" to another part, this includes not only "directly connected" but also "electrically connected" with another element in between. . In addition, when a part is said to "include" a certain component, which means that it may further include other components, except to exclude other components unless otherwise stated.

Hereinafter, a method of transmitting / receiving a message in a messaging network system according to an embodiment of the present invention will be described with reference to FIGS. 2 to 9.

2 is a view for explaining the concept of a messaging network according to an embodiment of the present invention.

As shown in FIG. 2, a messaging network in accordance with one embodiment of the present invention virtually provides one messaging bus, and the application server 100 on the messaging network shares this messaging bus to other applications connected to the same network. You will be able to communicate with the server.

3 is a diagram illustrating a connection structure of a messaging network system according to an embodiment of the present invention.

Referring to FIG. 3, a messaging network system 1000 according to an embodiment of the present invention may include a plurality of first application servers 100, a plurality of second application servers 200, and one or more messaging servers 300. Include.

The first application server 100 and the second application server 200 are terminal nodes that can communicate, and each of the first application server 100 and the second application server 200 are all messaging servers on the messaging network. Connected with 300. That is, the first application server 100-a is connected to the messaging server 310 and the messaging server 320, respectively, and the second application server 200-A is also connected to the messaging server 310 and the messaging server 320. Each is connected.

The messaging server 300 performs a message transmission between the first application server 100 and the second application server 200, and establishes a transmission path for efficient message transmission or sets the first application server 100 and the second application server. A connection relationship between the 200 is set.

In the above-described configuration, each of the first application server 100 and the second application server 200 on the messaging network has a redundant star structure connected to all the messaging servers 300, the first application server 100 And the second application server 200 selects the messaging server 300 in a round robin manner. A detailed description thereof will be described later.

In the messaging network system 1000 according to an embodiment of the present invention as described above, each of the first application server 100 and the second application server 200 on the messaging network is connected to all the messaging servers 300. Because of its star structure, any messaging server can access any application server. Thus, even if any messaging server fails, the entire messaging network can operate normally.

In addition, the messaging network system 1000 according to an embodiment of the present invention stores all the information for message brokering between application servers because each messaging server on the messaging network is directly connected to all application servers. This eliminates the need for sinking shared information between messaging servers, so that the operational load balancing that can occur by adding messaging servers is also effective, and there is no information exchanged between messaging servers. Since no heads are generated, the performance of the entire messaging network increases consistently with the addition of messaging servers.

4 is a detailed block diagram of a messaging network system according to an embodiment of the present invention.

Referring to FIG. 4, the first application server 100 and the second application server 200 according to an embodiment of the present invention include a first message connector 110 and a second message connector 210, respectively. The messaging server 310 includes a filter management module 311, a filter 312, a filter 313, and a channel management module 314.

The first application server 100 and the second application server 200 are connected to the messaging server 310 by using the first message connector 110 and the second message connector 210, respectively, to receive a service request message from the outside. Send / receive

The first message connector 110 and the second message connector 210 provide communication with other application servers on the messaging network and support virtual sockets.

The first message connector 110 and the second message connector 210 may be configured according to the request of the first application server 100 and the second application server 200, respectively. 200) to all messaging servers on the messaging network. In this case, the first message connector 110 and the second message connector 210 may be connected to the first message server 100 when the connection between the first application server 100 and the second application server 200 and any messaging server is temporarily terminated. The connection may be automatically recovered without notifying the application server 100 and the second application server 200. In this case, the message transmission / reception in the connection recovery process may be performed by the first application server 100 and the second application. Because server 200 is connected to all messaging servers on the messaging network, it can normally process through other messaging servers.

In addition, the first message connector 110 and the second message connector 210 provide a notification function when the requested message transmission from the first application server 100 and the second application server 200 is impossible. . At this time, if the message transmission is impossible, if the target application server is not connected to the messaging network, if the connection to the messaging network is impossible, if the delivery to the target application server is impossible due to the configuration of the messaging network, the Session It may include the case of the transmission method and the case in which the transmission is not completed until a predetermined timeout is exceeded in the message transmission.

So far, the first message connector 110 and the second message connector 210 have been described as being present in the first application server 100 and the second application server 200 as an example, but this is merely described as an example. It is not intended to be limited thereto, but each may be implemented as a separate module on a messaging network.

Meanwhile, the messaging server 310 according to an embodiment of the present invention includes a filter management module 311, a filter 312, and a channel management module 313.

The filter management module 311 manages the ACL filter 312 and the Etc filter 313. That is, the filter management module 311 applies the ACL filter 312 and the Etc filter 313 to all messages received by the messaging server 310, and after applying the ACL filter 312 and the Etc filter 313. It determines whether the message is allowed or prohibited and sends only the allowed message to the target application server. At this time, the filter management module 311 may send a NAK message to the transmitting application server according to the filter setting for the prohibited message.

The ACL filter 312 checks the sender / receiver information of each message to check whether the message is from a privileged application server. The ACL filter 312 may support two methods, a domain level and a method level, depending on the applied ACL level.

When the ACL filter 312 is a domain level method, the domain ID is checked at the address of the sender / receiver of the message to check whether the message is sent by an application server of an allowed domain. At this time, the ACL filter manages the list of domains that are allowed or prohibited by the application server of each domain for ACL checking at the domain level.

If the ACL filter 312 is a method level method, the payload portion of the message is examined by checking a message performed by a domain level ACL filter to further check whether the message is an allowed command.

Table 1 is an example of information required for setting an ACL filter according to an embodiment of the present invention.

TABLE 1

5 is a view for explaining a message transmission method according to an embodiment of the present invention.

Referring to FIG. 5, a message transmitted between an application server A and an application server B uses a message in the form of binary data. A maximum message size is 4 GB but a message larger than 64 KB is within 64 KB. It can be transmitted in small units.

The transmission time of a message is the sum of the time of sending and receiving the entire message and the time that the message is passed from one node to another. Usually, the delay time from one node to another node in the Internet data center (IDC) is within 1 ms, for example, but the time for transmitting / receiving the message itself is proportional to the size of the message. For example, assuming a 100Mbps network for a 1MB message, the transmission time of the message is 80ms.

Moreover, if a server relaying a message, that is, a messaging server 310, is present in the middle, a larger message size doubles the transmission / reception time. Only takes more time.

6 is a diagram illustrating an address system provided to an application server according to an exemplary embodiment of the present invention.

As shown in FIG. 6, the messaging network system 1000 according to an embodiment of the present invention is given a predetermined address to each application server, and each application server uses this address to provide another application server. Communicate with

The address information includes a domain ID (ID-ID), IDC ID (IDC-ID), server ID (Server-ID), and socket ID (Socket-ID).

Domain ID is used to designate application servers that perform the same function. Anycast and Multicast messages are usually transmitted based on Domain ID.

IDC ID is used to distinguish the Internet Data Center (IDC) to which the application server belongs. If IDC ID is 0, the message is sent to any IDC. If so, the message is sent to the IDC.

The server ID is used to distinguish the application server, and is combined with the domain ID and IDC ID to become a unique ID. Every application server on a messaging network has its own server ID (Server-ID). For example, if the Server-ID value is 0, the message is sent to any application server in the domain by Anycast, and if the Server-ID value is 0xFFFF, By multicast, messages are sent to all application servers in the domain.

Socket-ID is used to distinguish each channel when using multiple communication channels in one application server.

7 is a diagram illustrating a load balancing method of a messaging network system according to an embodiment of the present invention.

As shown in FIG. 7, the messaging network system according to an embodiment of the present invention properly distributes an application server to be received in a domain when transmitting an Anycast message to a specific domain. To select. In other words, the messaging server sends messages in a round-robin fashion to the application servers belonging to the corresponding domain.

For example, three anycast messages sent by the application server A to the domain 101 are delivered to each of the application servers B, C, and D belonging to the domain 101.

As described above, the messaging network system according to the embodiment of the present invention evenly distributes the messages delivered by the messaging server to each application server included in the receiving group, thereby effectively balancing the load between the application servers.

8 is a diagram illustrating a messaging network system supporting multiple IDCs according to an embodiment of the present invention.

As shown in FIG. 8, the messaging network system according to an embodiment of the present invention may operate with a messaging server distributed in multiple IDCs. In this case, each message connector basically sends a message to a messaging server belonging to the same IDC. By transmitting the A to prevent unnecessary communication load between IDCs. On the other hand, if all messaging servers belonging to the same IDC are unable to communicate due to failure or other reasons, the message can be sent to the messaging server belonging to another IDC.

9 is a flowchart illustrating a message transmission / reception method according to an embodiment of the present invention.

In operation S11, the first application server 100 transmits a connection request message to the second application server 200 to be connected to the first message connector 110, and in operation S12, the first message connector 110. ) Establishes a virtual connection between all messaging servers 300 and the first application server 100 on the messaging network.

In step S13, the first message connector 110 selects a connection request message from the first application server 100 in a round robin manner to all the messaging servers 300 connected to the first application server 100. send.

In step S14, the messaging server 300 checks destination information included in the connection request message of the first application server 100 received from the first message connector 110, and then in step S15, the messaging servers 310 and 320. ) Transmits the message to the corresponding second message connector 210.

In operation S16, the second message connector 210 transmits a message to the second application server 200.

When the service request message of the first application server 100 is received, in operation S17, the second application server 200 transmits a response message to the second message connector 210, and in operation S18, the second message. Connector 210 establishes a virtual connection between all messaging servers 300 and second application server 200 on the messaging network.

In operation S19, the second message connector 210 may select a connection request message from the second application server 200 in a round robin manner to all the messaging servers 300 connected to the second application server 200. send.

In step S20, the messaging server 300 checks destination information included in the connection request message of the second application server 200 received from the second message connector 210, and in step S21, the messaging server 300. ) Sends a message to the first message connector 110.

Finally, in step S22, the first message connector 110 transmits a response message of the second application server 200 to the first application server 100.

In the above-described configuration, when the first messaging server 310 of the messaging server 300 connected to the first application server 100 is abnormally terminated due to a system failure, the first message connector 110 is connected to the first messaging server. The connection with the 310 is automatically restored, and in this case, the message transmission / reception in the connection recovery process is performed with another messaging server connected with the first application server 100, that is, with the second messaging server 320. do. This can be handled normally through other messaging servers because each application server is connected to every messaging server on the messaging network.

One embodiment of the present invention can also be implemented in the form of a recording medium containing instructions executable by a computer, such as a program module executed by the computer. Computer readable media can be any available media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media. In addition, computer readable media may include both computer storage media and communication media. Computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Communication media typically includes computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave, or other transmission mechanism, and includes any information delivery media.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

1 is a diagram illustrating a connection structure of a messaging network system according to the prior art.

2 is a view for explaining the concept of a messaging network according to an embodiment of the present invention.

3 is a diagram illustrating a connection structure of a messaging network system according to an embodiment of the present invention.

4 is a detailed block diagram of a messaging network system according to an embodiment of the present invention.

5 is a view for explaining a message transmission method according to an embodiment of the present invention.

6 is a diagram illustrating an address system provided to an application server according to an exemplary embodiment of the present invention.

7 is a diagram illustrating a load balancing method of a messaging network system according to an embodiment of the present invention.

8 is a diagram illustrating a messaging network system supporting multiple IDCs according to an embodiment of the present invention.

9 is a flowchart illustrating a message transmission / reception method according to an embodiment of the present invention.

Claims (9)

In a messaging network system, A plurality of first application servers, A plurality of second application servers for receiving or transmitting messages from the first application server; A messaging server connected to both the first application server and the second application server respectively; Including, The first application server and the second application server select the messaging server in a round-robin fashion. The method of claim 1, The first application server includes a first message connector for receiving a service request message from the outside and sending it to the messaging server, And wherein said first message connector sends said service request message to all messaging servers on said messaging network in a round-robin fashion. The method of claim 2, The second application server includes a second message connector for transmitting a response message corresponding to the service request message from the first application server to the messaging server, And wherein said second message connector sends said response message to all messaging servers on said messaging network in a round-robin fashion. The method of claim 3, wherein The messaging server, A filter management module for controlling a message filter to determine whether to allow or prohibit all messages received from the first application server and to transmit only allowed messages to the second application server. Messaging network system comprising a. The method of claim 3, wherein The first message connector and the second message connector are configured to transmit / receive a message between the first application server and the second application server when the connection with one of the messaging servers on the messaging network ends abnormally. Messaging network system through another messaging server on the messaging network. In the messaging network system message transmission / reception method, Establishing a connection between the plurality of first application servers and all messaging servers on the messaging network; Establishing a connection between a plurality of second application servers and all said messaging servers on a messaging network; Selecting and transmitting a service request message from the first application server in a round robin manner to all messaging servers on a messaging network; Selecting and transmitting a response message of the second application server corresponding to the service request message to all messaging servers on a messaging network in a round robin manner; Message transmission and reception method of a messaging network system comprising a. Transmitting the received message to a second application server based on destination information included in the message received from the first application server. Message transmission and reception method of the messaging network system further comprising. The method of claim 6, Sending and receiving a message between the first application server and the second application server when the connection to one of the messaging servers on the messaging network is abnormally terminated through another messaging server on the messaging network. How to send and receive messages in an in-messaging network system. A computer-readable recording medium having recorded thereon a program for performing on a computer each step of the message transmission / reception method according to any one of claims 6 to 8.

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