KR20240012057A - Linkage systems and methods to ensure non-disruptive and high availability when transmitting interfaces - Google Patents

Abstract

The present invention is a method for operating a high availability linked system and a system that enables this. In order to connect different systems, data must be transmitted and received between the systems. In this case, even if a failure or network delay occurs in a specific system, it is about a control system that ensures that transactions are processed normally without the failure being propagated to the entire connected system. The high availability linkage system according to an embodiment of the present invention improves network availability by relaying interface transmission and reception between a first target system and a second target system connected to it through a network. It may include an interface producer unit that accepts the interface transmitted from the system, and an interface consumer unit that transmits the received interface to the second target system.

Description

Linkage system and method to ensure uninterruption and high availability during interface transmission {LINKAGE SYSTEMS AND METHODS TO ENSURE NON-DISRUPTIVE AND HIGH AVAILABILITY WHEN TRANSMITTING INTERFACES}

The present invention relates to a method for operating a high availability linked system and a system that enables this. In order to link different systems, data is sent and received between the systems. At this time, even if a failure or network delay occurs in a specific system, a linkage system and a system that utilizes this control are used to ensure that transactions can be processed normally without the failure being propagated to the entire linkage system. It is about connection method.

Due to the increase in IT (Information Technology), most businesses have shifted to an online focus. Accordingly, corporate systems had to be able to handle higher loads, and they continue to be upgraded to minimize the impact on business even in the event of a failure.

As the system becomes more advanced and complex, the system takes on a distributed form according to each function rather than a centralized form. At this time, there inevitably arises a need to share data between systems. Since the communication method of each linked system may be different, the transmission protocol, character set, and data format may be different.

The linked system applies not only to the internal systems of one company, but also to systems between different companies. Therefore, it is difficult to arbitrarily standardize the communication method according to need. For example, one system uses TCP as the protocol, Fixed Length Data (FLD) as the data format, and UTF-8 as the character set, while another system uses JavaScript Object Notation (JSON) over HTTPS and EUC as the character set. -KR can also be used. In addition, even if FLD is used for TCP, the type of layout used may be different, such as the type or length of each data.

In addition, there are systems that still use REST (Representational State Transfer) API or even SOAP (Simple Object Access Protocol). Therefore, in order to communicate data between the systems, one side must transmit data according to the communication method of the other system.

In the past, in order to connect with different systems, programs were actually developed by hard-coding each system into the program. However, although this method can be easily handled when there are only a few systems to be linked, as the number of systems to be linked increases, it becomes more inconvenient.

Therefore, the need for a central linkage system has emerged to link systems and share data in a more flexible way, and the method used for data communication is called an interface.

Republic of Korea Patent Publication No. 10-2233894

The problem that the present invention aims to solve is to ensure uninterrupted interfaces by minimizing the influence between target systems even in situations where the load increases due to the increase in linked systems and interfaces in the central link system and the increase in TPS (Transactions per second).

In addition, the purpose is to ensure high availability of the central linkage system that processes the interface accordingly.

Other objects and advantages of the present invention will become clearer from the following detailed description, claims, and drawings.

The high availability linkage system according to an embodiment of the present invention to solve the above technical problem improves the availability of the network by relaying the transmission and reception of the interface between the first target system and the second target system connected to it through a network. This may include an interface producer unit that accepts the interface transmitted from the first target system, and an interface consumer unit that transmits the received interface to the second target system.

The interface producer unit may include an interface request unit that receives a transaction request from the first target system, and a system queue manager that receives a system queue request from the interface request unit.

The system queue manager includes a system queue set consisting of a plurality of system queues, and when receiving the system queue request, the system queue manager checks the status of each system queue included in the system queue set, It is possible to determine whether to return the system queue for importing the interface of the first target system.

When a returnable system queue is confirmed, the system queue manager can return the system queue to the interface request unit.

The interface request unit requests the system queue manager to import the interface, and the system queue manager can determine whether to import the interface into the system queue.

The system queue manager can check the maximum number of queues in the system queue set, generate an error if the maximum number of queues is exceeded, and import the interface into the system queue if the excess number of queues is not exceeded.

The system queue corresponds to a request signal and may include at least one producer thread to process import of the interface.

The interface consumer unit may include an interface transmission unit that retrieves the interface from the system queue manager.

The interface transmission unit may transmit the retrieved interface to the second target system.

The interface transmission unit measures the residence time by comparing the time when the interface was entered into the system queue manager in real time, and if the residence time is within a preset timeout time, transmits the interface to the second target system, If the retention time exceeds the preset timeout time, an error may be generated to stop transmission of the interface to the second target system.

The interface consumer unit may include at least one consumer thread for transmitting the interface to the second target system and calculating and comparing the residence time, etc.

The high availability interface linkage method according to an embodiment of the present invention to solve the above technical problem involves transmitting and receiving an interface between a first target system and a second target system connected to it through a network by utilizing a high availability linkage system. In other words, when the first target system transmits an interface to an interface producer included in the high availability linkage system, the transmitted interface is introduced into the interface producer part and the high availability linkage system. It may include the step of transmitting the input interface to the included interface consumer unit to the second target system.

The step of introducing the interface into the interface producer unit may include the step of calling and providing a returnable system queue when the first target system makes a transaction request to the interface producer unit.

The interface producer unit may check the maximum processing number of system queues and then insert the interface into the system queue.

As a result of checking the maximum number of processing cases, if the interface producer unit exceeds the maximum number of cases that the interface producer unit can process, the interface producer unit may generate a system error to stop the interface from entering the system queue. there is.

The interface consumer unit can receive transmission when the interface entered into the system queue is fetched.

The interface consumer unit may include measuring a residence time of the interface in the system queue by comparing real time with the time the interface entered the system queue.

If the residence time is within the preset timeout time, the interface is transmitted to the second target system, and if the residence time exceeds the preset timeout time, an error is generated and the interface is transferred to the second target system. Transmission can be stopped.

When a central link system makes a request to a linked system, if there is a slow or no response due to a system failure or network failure, the performance of the entire linked system deteriorates due to threads waiting to process the response, ultimately leading to a failure. can be spread. At this time, timeout and queue are managed for each target system and transaction to ensure high-performance interface and stability of the entire system.

That is, according to the present invention. In the central linkage system, the number of linked systems and interfaces increases, and TPS (Transactions per second) increases, ensuring uninterrupted interfaces by minimizing the impact between target systems even in situations where load increases. In addition, a method for ensuring high availability of a central linkage system processing the interface is provided.

Figure 1 is a configuration diagram showing a central linkage system utilizing a high availability linkage system according to an embodiment of the present invention.
Figure 2 shows the interface producer unit of the high availability linkage system according to an embodiment of the present invention.
Figure 3 shows the interface consumer portion of the high availability linkage system according to an embodiment of the present invention.
Figure 4 shows the processing process when an interface is introduced into the interface producer unit of the high availability linkage system according to an embodiment of the present invention.
Figure 5 shows a process in which the interface consumer unit of the high availability linkage system according to an embodiment of the present invention processes the input interface.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and will be implemented in various different forms. The present embodiments only serve to ensure that the disclosure of the present invention is complete and that common knowledge in the technical field to which the present invention pertains is not limited. It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Specific details for implementing the present invention will be described in detail with reference to the drawings attached below. Regardless of the drawings, the same reference numerals refer to the same elements, and “and/or” includes each and all combinations of one or more of the mentioned items.

The terminology used herein is for describing embodiments and is not intended to limit the invention. As used herein, singular forms also include plural forms, unless specifically stated otherwise in the context. As used in the specification, “comprises” and/or “comprising” does not exclude the presence or addition of one or more other elements in addition to the mentioned elements.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used with meanings that can be commonly understood by those skilled in the art to which the present invention pertains. Additionally, terms defined in commonly used dictionaries are not interpreted ideally or excessively unless clearly specifically defined.

Hereinafter, a high availability linkage system according to an embodiment of the present invention and a linkage method utilizing the same will be described.

Figure 1 is a configuration diagram showing a central linkage system utilizing a high availability linkage system according to an embodiment of the present invention, and Figure 2 shows an interface producer unit of the high availability linkage system according to an embodiment of the present invention. Figure 3 shows the interface consumer part of the high availability linkage system according to an embodiment of the present invention, and Figure 4 shows the interface being introduced into the interface producer part of the high availability linkage system according to an embodiment of the present invention. This is the processing process, and Figure 5 shows the process of processing the interface introduced by the interface consumer unit of the high availability linkage system according to an embodiment of the present invention.

First, with reference to FIGS. 1 to 3, a high availability linkage system according to an embodiment of the present invention will be described as follows.

The high availability linkage system 10 according to an embodiment of the present invention can improve network availability by relaying interface transmission and reception between the first target system 100 and the second target system 200 connected to it through a network. .

The linkage system 10 includes an interface producer unit 11 that accepts the interface transmitted from the first target system 100, and an interface consumer that transmits the accepted interface to the second target system 200 ( It may include a consumer) unit (21).

The first and second target systems 100 and 200 are a host electronic device and a client electronic device. The host electronic device may be, for example, a desktop computer system or a laptop computer system. The client electronic device may be, for example, a laptop computer system, a personal digital assistant (PDA), or a cellular-based device (e.g., a cellular phone or smartphone). Meanwhile, the first and second target systems 100 and 200 may each be composed of a plurality of hosts. Here, for convenience of explanation, it is assumed that the single first and second target systems 100 and 200 are interconnected through the high availability linkage system 10. The high availability linkage system 10 can be connected to multiple hosts that exchange data with each other.

The first and second target systems 100 and 200 are connected to each other through a network and can transmit and receive data, etc. More specifically, the connection between the first and second target systems 100 and 200 may use reliable stream transmission, for example, TCP (Transmission Control Protocol) stream connection. Other stream connections may also be supported. In one embodiment, communication may be accomplished using packets with a header and body. Although one embodiment of a standard minimal header is described herein, the header may include additional packet-related structured data. Packet data may contain unstructured data or may be empty.

The high-availability linkage system 10, which relays the transmission and reception of interfaces between the first and second target systems 100 and 200, includes an interface producer unit that receives the interface transmitted from the first target system 100. It may include (11) and an interface consumer unit (21) that transmits the accepted interface to the second target system (200). The high availability linkage system 10 can improve the availability of the network between the first and second target systems 100 and 200.

The high availability linkage system 10 can be implemented by applying multithreading technology. When using multithreading technology, multiple threads of execution can operate on different tasks simultaneously or by alternating access to the processing pipeline. For example, if a task can be decomposed into two separate sub-tasks, it may be useful to create two separate threads, each handling a different sub-task. These threads then produce their corresponding results, which together solve the overall task.

More specifically, different techniques exist for assigning work to tasks. One approach is commonly referred to as producer-consumer design. Within a producer-consumer design approach, one or more threads are responsible for producing data, and one or more threads are responsible for consuming the produced data. As an example, a producer thread may be responsible for reading data from a file into a memory area accessible by a consumer thread. Consumer threads retrieve data from the memory area and process (consume) the data as needed. That is, the high availability linkage system 10 according to an embodiment of the present invention may be configured based on the producer-consumer model.

For this purpose, the high availability linkage system 10 includes an interface producer unit 11 that accepts the interface transmitted from the first target system 100, and the received interface to the second target system 200. It may include a transmitting interface consumer unit 21.

Referring to FIGS. 1, 2, and 4, the interface producer unit 11 of the high availability linkage system 10 includes an interface request unit 13 that receives a transaction request from the first target system 100. and a system queue manager 15 that receives a system queue request from the interface request unit 13.

When the interface request unit 13 receives a transaction initiation request from the first target system 100, the high availability linkage system 10 for interface transmission may be activated.

Meanwhile, the interface producer unit 11 may create a plurality of system queues 31 for processing transaction requests received from the first target system 100 and temporary storage (importation) of the interface, and each The system queue 31 may include at least one producer thread 32. That is, the system queue 31 may correspond to a request signal and include at least one producer thread 32 to process the import of the interface.

The system queue 31 can be set for each host device and linked target system connected to the high availability linked system 10. That is, when the high availability linkage system 10 is first started, the database management system (DBMS) reads information on the host device and linkage target system and creates a system queue 31 for each device and system. You can. Meanwhile, each system queue 31 may include at least one producer thread 32 that processes information transmitted from each host device and system, and the system queue 31 contains information transmitted from each host device and system. The interface can be imported and saved. Such system queue 31 may exist as a set of system queues comprised of a plurality of system queues within the interface producer unit 11. Meanwhile, the system queue manager 15 can manage and control each of the system queues 31 created in the interface producer unit 11 and the system queue set, which is a set of them. Meanwhile, hereinafter, for convenience of explanation, the linked target systems connected to the high availability linked system 10 will be limited to the first and second target systems 100 and 200, and the system queue 31 is also created correspondingly. It is assumed that

As described above, the system queue manager 15 may include a system queue set consisting of a plurality of system queues. When receiving a system queue request, the system queue manager 15 checks the status of each system queue included in the system queue set and determines whether the system queue 31 for importing the interface of the first target system 100 is returned. can be decided. That is, the system queue manager 15 checks the real-time status of the system queues 31 and identifies system queues that can be entered and processed in the interface in response to the request signal transmitted from the first target system 100.

After the system queue manager 15 checks the status of the system queue set and if a returnable system queue is confirmed, the system queue manager 15 returns the system queue 31 to the interface request unit 13.

Subsequently, the interface request unit 13 requests the system queue manager 15 to import the interface, and the system queue manager 15 determines whether to import the interface into the system queue 31.

Meanwhile, the system queue manager 15 determines whether to import an interface into the system queue 31 using the following method. That is, the system queue manager 15 checks the maximum number of queues in the system queue set, and generates an error if the maximum number of queues is exceeded. As a result, it is possible to shorten the system's work waiting time and prevent the entire linked system from going down. Additionally, if the number of waiting cases does not exceed, the system queue manager 15 loads the interface into the system queue 31. In other words, the system manager 15 can check the overall status of the system queues that process and store the transmitted interface, manage them, and select only the system queues that can work and wait to continuously proceed with the interface linkage work. there is. Otherwise, by generating an error in the transaction request, etc., the transaction is terminated quickly and the number of waiting tasks in the linked system is minimized. By this, the high availability of the linked system can be maintained and guaranteed.

Meanwhile, the interface consumer unit 21 includes an interface transmission unit 23 that retrieves the interface from the system queue manager 15. The interface transmission unit 23 exchanges signals with the system queue manager 15 of the interface producer unit 11 and can control interface input and output.

The system queue manager 15 retrieves the interface entered into the system queue 31 and transmits it to the interface transmission unit 23, and the interface transmission unit 23 transmits the retrieved interface to the second target system 200. It can be sent to .

Meanwhile, the interface transmission unit 23 may transmit the retrieved interface to the second target system 200 through the following process.

That is, the interface transmission unit 23 measures the residence time by comparing the time when the interface was entered into the system queue manager 15 and real time. If the measured residence time is within the preset timeout time, the interface is transmitted to the second target system 200. On the other hand, if the stay time exceeds the preset timeout time, an error is generated and the interface is transmitted to the second target system 200. By generating an error, work delays or system downtime in the interface linkage system can be prevented.

The time at which the interface, which is the basis for calculating the residence time, is entered into the system queue manager 15 and real time are measured through a system clock (not shown) installed in the high availability linkage system 10, and the two measured times are measured. Based on this, the time that the interface stays in the system queue (31) can be measured.

Meanwhile, the interface consumer unit 23 may include at least one consumer thread 41 and 42 for transmitting the interface to the second target system 200 and calculating and comparing residence time, etc. That is, through multi-threading technology, the interface consumer unit 23 performs interface fetching and transmission.

With reference to Figures 1 to 5, a high availability interface linking method according to an embodiment of the present invention will be described.

The high availability interface linkage method according to this embodiment transmits and receives an interface between a first target system and a second target system connected to it through a network by utilizing the high availability linkage system of the above-described embodiment.

More specifically, the high-availability interface linkage method according to this embodiment is when the first target system 100 transmits an interface to the interface producer unit 11 included in the high-availability linkage system 10, Steps (S10 to S15) in which the transmitted interface is introduced into the interface producer unit 11, and the interface consumer unit 21 included in the high availability linkage system 10 is inserted. It may include steps S20 to S23 of transmitting to the second target system 200.

Looking at each step in detail, it is as follows.

The step of introducing the interface into the interface producer unit 11 is when the first target system 100 makes a transaction request to the interface producer unit 11 (S10), and the interface producer unit 11 returns It may include a step (S12) of calling and providing a possible system queue (31). When a returnable system queue 31 is confirmed, the system queue manager 15 returns the system queue 31 to the interface request unit 13 (S13).

At this time, the interface producer unit 11 checks the maximum processing number of system queues and then inserts the interface into the system queue 31. More specifically, the interface request unit 13, which has received the return of the system queue 31, transmits an interface entry request to the system queue manager 15 (S14). Through this process, the system queue manager 15 inserts the interface into the system queue 31 (S15).

Meanwhile, as a result of checking the maximum number of system queues processed by the system queue manager 15 of the interface producer unit 11, if it exceeds the maximum number of cases that the interface producer unit 11 can process, the interface producer unit ( 11) generates a system error and stops the interface from entering the system queue 31 (S15).

Next, the interface consumer unit 21 receives the interface when it is retrieved from the system queue (S20). The interface is accepted by the interface transmission unit 23 of the interface consumer unit 21.

Subsequently, the interface consumer unit 21 compares the time when the interface entered the system queue 31 in real time and measures the residence time of the interface in the system queue 31. (S22).

If the stay time is within the preset timeout time, the interface is transmitted to the second target system 200 (S23). On the other hand, if the stay time exceeds the preset timeout time, an error may be generated and transmission of the interface to the second target system 200 may be stopped (S22). By stopping work only for individual tasks that are delayed, the high-availability interface linking method prevents interruption and delay of the overall system and can ensure high availability of interface transmission and reception.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments and can be manufactured in various different forms, and those skilled in the art will understand the technical idea of the present invention. It will be understood that it can be implemented in other specific forms without changing the essential features. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive.

100: first target system 200: second target system
10: High availability linkage system 11: Interface producer
21: Interface Consumer 13: Interface Request Part
15: System queue manager 23: Interface transmission unit
31: System queue 32: Producer thread
41, 42: Consumer thread

Claims (18)

In a high availability linkage system that improves network availability by relaying interface transmission and reception between a first target system and a second target system connected to it through a network,
an interface producer unit that accepts the interface transmitted from the first target system;
A high availability linkage system including an interface consumer unit that transmits the accepted interface to the second target system. According to claim 1,
The interface producer unit includes an interface request unit that receives a transaction request from the first target system,
A high availability linked system including a system queue manager that receives a system queue request from the interface request unit. According to clause 2,
The system queue manager includes a system queue set consisting of a plurality of system queues,
When receiving the system queue request, the system queue manager checks the status of each system queue included in the system queue set and determines whether to return the system queue for importing the interface of the first target system. A high availability linkage system. According to clause 3,
When a returnable system queue is confirmed, the system queue manager returns the system queue to the interface request unit. According to clause 4,
The interface request unit requests the system queue manager to import the interface, and the system queue manager determines whether to import the interface into the system queue. According to clause 5,
The system queue manager checks the maximum number of queues in the system queue set, generates an error if the maximum number of queues is exceeded, and imports the interface into the system queue if the excess number of queues is not exceeded. High availability linkage system. According to clause 3,
The system queue corresponds to a request signal and includes at least one producer thread to process import of the interface. According to clause 2,
The interface consumer unit is a high-availability linkage system, characterized in that it includes an interface transmission unit that retrieves the interface from the system queue manager. According to clause 8,
The interface transmission unit transmits the retrieved interface to the second target system. According to clause 9,
The interface transmission unit measures the residence time by comparing the time when the interface was entered into the system queue manager in real time,
If the stay time is within the preset timeout time, the interface is transmitted to the second target system,
A high-availability linkage system characterized in that, when the stay time exceeds a preset timeout time, an error is generated and transmission of the interface to the second target system is stopped. According to claim 10,
The interface consumer unit transmits the interface to the second target system,
A high availability linkage system comprising at least one consumer thread for calculating and comparing the residence time, etc. In a high availability interface linkage method for transmitting and receiving an interface between a first target system and a second target system connected to it through a network using a high availability linkage system,
When the first target system transmits an interface to an interface producer included in the high availability linkage system, the transmitted interface is entered into the interface producer unit;
A high-availability interface linking method comprising transmitting the interface into which an interface consumer unit included in the high-availability linking system is introduced to the second target system. According to claim 12,
The step of introducing the interface into the interface producer unit is:
When the first target system makes a transaction request to the interface producer unit, the interface producer unit calls and provides a returnable system queue. According to claim 13,
A high-availability interface linking method, wherein the interface producer unit checks the maximum processing number of system queues and then inserts the interface into the system queue. According to claim 14,
As a result of checking the maximum number of processed cases by the interface producer department,
A high-availability interface linking method in which, when the interface producer unit exceeds the maximum number of cases that can be processed, the interface producer unit generates a system error and stops the interface from entering the system queue. According to claim 14,
A high-availability interface linking method, wherein the interface consumer unit receives the interface when it is fetched from the system queue. According to claim 15,
The interface consumer unit measures a residence time of the interface in the system queue by comparing real time with the time the interface was entered into the system queue. According to claim 17,
If the stay time is within the preset timeout time, the interface is transmitted to the second target system,
A high-availability interface linkage method characterized in that, when the residence time exceeds a preset timeout time, an error is generated and transmission of the interface to the second target system is stopped.

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