JP2008129927A - Purchase and sales system, telegram transmission control method, transmission permitted telegram serial number notification program, and business telegram transmission control program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a purchase and sales system capable of efficiently transmitting and receiving a business telegram without retaining the business telegram within the range of a server's processing power. <P>SOLUTION: In the purchase and sales system comprising a virtual server for transmitting a business telegram and a purchase and sales server for performing predetermined purchase and sales processing on the basis of the business telegram received from the virtual server, the purchase and sales server is provided with a telegram serial number transmitting means for determining a transmission permitted telegram serial number in accordance with its own processing state and transmitting the transmission permitted telegram serial number to the virtual server, and the virtual server is provided with a serial number storing means for storing the transmission permitted telegram serial number, a serial number updating means for receiving the transmission permitted telegram serial number from the purchase and sales server and storing the transmission permitted telegram serial number in the serial number storing means, a telegram transmitting means for attaching a serial number to a business telegram to be transmitted to the purchase and sales server and transmitting the business telegram to the purchase and sales server, and a control means for controlling business telegram transmission by the telegram transmitting means so as not to make the serial number attached to the business telegram to be transmitted exceed the transmission permitted telegram serial number stored in the serial number storing means. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a trading system, a message transmission control method, a transmission permission message serial number notification program, and a business message transmission control program that can efficiently transmit a business message in a trading system that transmits and receives business messages related to trading between servers.

  When sending and receiving business messages related to buying and selling such as securities transactions between servers, a business message with a response indicating that the business message of the order sent from the server on the ordering side has been received has been received. Transmission is performed from the server to the server on the ordering side. The server that sends the order can send a business message for a new order after receiving a response to this order, and sends a new order until a response to the previous order is returned. Need to wait. In such a system, when the business processing load increases on the server that receives the order, it takes time until a response is returned, so that the order flow rate is automatically controlled.

In addition, as a prior art for performing flow control, in a connection relay processing system that performs relay processing of a transmission connection and a reception connection established at the time of communication on an electronic computer network, communication control is performed using a transmission connection and a reception connection. At the same time, by providing a communication control module that controls the flow of the incoming connection when a failure occurs in the sending connection and suppresses the reception of new telegrams, the increase in the number of stays in the received telegram when the sending side connection fails A system that can suppress and improve the performance of a connection relay processing system is known (see, for example, Patent Document 1).
JP 2001-156895 A

  By the way, after sending a business message for an order and receiving a response to this order, a procedure for sending a business message for a new order waits for a new order to be sent until a response to the previous order is returned. Since it is necessary, there is a problem that the server on the ordering side cannot efficiently transmit the business message of the order. In order to solve this problem, sending the order business message and sending the response to this order asynchronously, sending the order business message as much as possible at any time on the ordering side, sending the order If a response to an order is sequentially transmitted at an arbitrary timing on the receiving side, an order business message can be efficiently transmitted.

On the other hand, a system that executes trading processing in securities trading has the following problems.
(1) The trading system is a system that consists of a single server responsible for exchange business and a large number of servers responsible for securities company business. Therefore, it is necessary to reliably avoid the situation of receiving an order exceeding the capacity of the exchange server.
(2) With the aim of protecting the market function, there is a situation where the market function is impaired due to the occurrence of a large number of abnormal messages due to the failure of the server that sends one order somewhere. Therefore, it is necessary to have a mechanism to prevent this.
(3) It is necessary to implement a mechanism that enables control in the business application layer instead of control in the lower layer such as TCP flow control.
(4) In a trading system where it is essential to process a large amount of business messages at high speed, delays in TCP flow control and business processing occur, resulting in a situation where orders are stagnating, affecting high-speed processing. Since it is necessary to avoid such a situation, the server that receives the order places an order so that the order does not enter until it exceeds the capacity on the server side of the exchange (capacity of hardware and application software that performs business). It is necessary to have a mechanism that can intentionally control the received amount of.
(5) Since there are a large number of servers that transmit orders, it is necessary to maintain fairness between servers that transmit orders (and also between securities companies) because the trading server side can uniformly control.
(6) The order reception amount in the trading server must be controlled in units of one server that transmits orders.
In the trading system, in addition to the issues peculiar to securities trading, it is assumed that the number of orders will increase dramatically in the future, and after waiting for a response to an order that has been made, a new order is placed. This procedure has a problem that it is difficult to process a large amount of business messages quickly.

  The present invention was made in view of such circumstances, and in a trading system that transmits and receives business messages related to trading between servers, the transmission of business messages for orders and the transmission of responses to the orders are asynchronous, Send the order business message as much as possible at any time on the ordering side, send the response to the order sequentially at any time on the order receiving side, and within the processing capacity of the server that receives the order It is an object of the present invention to provide a trading system, a message transmission control method, a transmission permission message sequence number notification program, and a business message transmission control program that can perform transmission control so that transmission and reception can be performed efficiently without stagnation.

  The present invention is a trading system comprising a virtual server that transmits a business message and a trading server that performs a predetermined trading process based on the business message received from the virtual server, wherein the trading server has its own processing status And a message sequence number transmitting means for determining a transmission permitted message sequence number and transmitting the transmission permitted message sequence number to the virtual server, and the virtual server includes a sequence number storage means for storing the transmission permitted message sequence number; A serial number updating means for receiving the transmission-permitted electronic message serial number from the trading server and storing it in the serial number storage means; and a business message to be transmitted to the trading server, giving a serial number to the trading server The message transmission means for transmitting to the business message to be transmitted and the serial number assigned to the business message to be transmitted do not exceed the transmission permission message sequence number stored in the sequence number storage means. Characterized in that a control means for controlling the business message transmission by the transmission means.

  The present invention is characterized in that the control means continuously transmits to the trading server a business message to which a serial number that does not exceed the transmission permission message serial number stored in the serial number storage means is assigned.

  In the present invention, the message sequence number transmission means transmits the transmission permission message sequence number to be updated at predetermined time intervals, and the sequence number update means transmits the transmission permission message sequence number transmitted by the message sequence number transmission unit. The transmission permission message sequence number stored in the sequence number storage means is updated every time the message is received.

  In the present invention, the sequence number update means does not update the transmission permission message sequence number stored in the sequence number storage means when the transmission permission message sequence number transmitted by the message sequence number transmission unit is an invalid sequence number. It is characterized by.

  In the present invention, the trading server includes a transmitted message sequence number storage unit that stores the transmission permission message sequence number that has been transmitted to the virtual server by the message sequence number transmission unit, and a business message received from the virtual server. When the assigned serial number exceeds the transmission permitted message sequence number stored in the transmitted message sequence number storage means, a reject message that is considered not to have received the business message is sent to the virtual server. And a reception rejection control means for transmitting.

  According to the present invention, the reception rejection control means includes a business message in which the serial number assigned to the business message received from the virtual server exceeds the transmission permitted message serial number stored in the transmitted message serial number storage means. Is continuously received, the communication line with the virtual server is disconnected.

  The present invention provides a virtual server comprising a serial number storage means for storing a transmission-permitted electronic message serial number, and a message transmission means for assigning a serial number to a business message to be transmitted and transmitting it to a trading server; A message transmission control method in a trading system comprising a trading server that performs predetermined trading processing based on a business message received from a server, wherein the trading server determines a transmission permitted message serial number according to its own processing status A message sequence number transmission step for transmitting the transmission permitted message sequence number to the virtual server, and a sequence number update step in which the virtual server receives the transmission permission message sequence number from the trading server and stores it in the sequence number storage means. And the message transmission means so that the serial number assigned to the business message to be transmitted does not exceed the transmission permitted message sequence number stored in the sequence number storage means Characterized by a control step of controlling transmission of business message by.

  The present invention provides a virtual server comprising a serial number storage means for storing a transmission-permitted electronic message serial number, and a message transmission means for assigning a serial number to a business message to be transmitted and transmitting it to a trading server; In a trading system comprising a trading server that performs a predetermined trading process based on a business message received from a server, the trading server is a transmission permission message sequence number notification program for transmitting the transmission permission message sequence number, and its own processing status In response to this, the transmission permission message sequence number is determined, and the computer is caused to perform a message sequence number transmission step of transmitting the transmission permission message sequence number to the virtual server.

  The present invention comprises a virtual server comprising a serial number storage means for storing a transmission-permitted message serial number, a message transmission means for assigning a serial number to a business message to be transmitted and transmitting it to a trading server, Depending on the processing status, a transmission permission message sequence number is determined, and a message transaction number transmission means for transmitting the transmission permission message sequence number to the virtual server is provided, and predetermined trading processing based on the business message received from the virtual server In the trading system comprising a trading server that performs the transaction, the virtual server is a business message transmission control program for controlling the transmission of the business message, and receives the transmission permission message sequence number from the trading server and stores it in the sequence number storage means The sequence number update step to be stored and the sequence number assigned to the business message to be transmitted do not exceed the transmission permission message sequence number stored in the sequence number storage means. , Characterized in that to perform a control step for controlling the transmission of the business message by the message transmission unit to the computer.

  According to the present invention, the virtual server receives the transmission permission message sequence number determined by the trading server according to its own processing status, and the sequence number assigned to the business message to be transmitted from the virtual server does not exceed the transmission permission message sequence number. As described above, since the transmission of business messages is controlled, in a trading system that transmits and receives business messages related to trading between servers, the business messages can be efficiently transmitted and received without staying within the processing capacity of each server. The effect of being able to be obtained.

  Hereinafter, a trading system according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the embodiment. In this figure, reference numeral 1 denotes a trading server that performs stock transaction processing, for example, a server that performs operations of a stock exchange. Reference numeral 2 denotes a virtual server that transmits order information for securities trading to the trading server 1, for example, a server that performs a business of a securities company. The trading server 1 and the virtual server 2 are connected via a communication network N so that information communication is possible.

  Reference numeral 11 denotes a communication unit that establishes a communication line with the virtual server 2 via the communication network N. Reference numeral 12 denotes a message transmission unit that transmits business messages such as reception notifications, contract notifications, market management, and attention information to the virtual server 2 via the communication unit 11. Reference numeral 13 denotes a message receiving unit that receives a business message transmitted from the virtual server 2 via the communication unit 11. Reference numeral 14 denotes a received message storage unit that accumulates messages received by the message receiver 13. Reference numeral 15 denotes a status analysis unit that analyzes its own processing status based on the amount of unprocessed business messages stored in the received message storage unit 14 and the degree of execution of transaction processing. Reference numeral 16 denotes a timer for outputting date / time information. Reference numeral 17 denotes a transmission-permitted message sequence number transmission unit that transmits a transmission-permitted message sequence number that permits transmission of a business message to the virtual server 2 in accordance with the situation analysis result in the situation analysis unit 15. Reference numeral 18 denotes a serial number initialization unit that initializes a transmission permission message serial number at the start of a day of work. Reference numeral 19 denotes a message sequence number management information storage unit that stores information for managing a message sequence number such as a transmission permission message sequence number that has been transmitted to the virtual server 2.

  Reference numeral 21 denotes a communication unit that establishes a communication line with the trading server 1 through the communication network N. Reference numeral 22 denotes a transmission message storage unit that stores information on business messages (new orders, change orders, cancellation orders, operation instructions, etc.) to be transmitted to the trading server 1. The code | symbol 23 assign | provides a serial number (serial number) to the transmission order with respect to the business message memorize | stored in the transmission message memory | storage part 22, and transmits the business message to the trading server 1 via the communication part 21. Part. The code | symbol 24 is a message | telegram receiving part which receives the business message | telegram transmitted from the trading server 1 via the communication part 21. FIG. Reference numeral 25 denotes a received message storage unit that stores business messages received by the message receiver 24. The code | symbol 26 is a message | telegram serial number update part which receives the transmission permission message | telegram number transmitted from the trading server 1 via the communication part 21, and updates as needed. Reference numeral 27 denotes a transmission permission message sequence number storage unit that stores the transmission permission message sequence number received by the message sequence number update unit 26. The message transmission unit 23 does not exceed the value of the transmission permitted message sequence number stored in the transmission permission message sequence number storage unit 27 (assigned sequence number ≦ transmission permitted message sequence number). In this case, the business message to be transmitted is continuously transmitted. However, if the value of the serial number assigned to the business message to be transmitted exceeds the value of the transmission-permitted message sequence number, the transmission-permitted message sequence number storage unit 27 The transmission permission message sequence number stored in the transmission permission message sequence number storage unit 27 is waited until the message sequence number update unit 26 updates the transmission permission message sequence number stored in the transmission permission message sequence number. A business message is sent when the serial number value has not been exceeded.

  Here, the transmission permission message serial number will be described. The business message transmitted from the virtual server 2 to the trading server 1 is given information specifying the virtual server 2 that is the transmission source and a serial number (serial number) that is incremented by 1 each time the business message is transmitted. For example, when the transmission-permitted message sequence number is initialized at the start of business, the serial number assigned to the business message to be transmitted is also initialized. ", And" 2 "is assigned to the business message to be transmitted next. The virtual server 2 is transmitted from the virtual server 2 to the trading server 1 by preventing the value of the serial number assigned to the business message to be transmitted from exceeding the value of the transmission permission message serial number received from the trading server 1. It limits the amount of business messages. For example, if the transmission permission message sequence number transmitted from the trading server 1 to the virtual server 2 is “1000”, the virtual server 2 will continue until the sequence number assigned to the business message to be transmitted becomes “1000”. The business message can be transmitted continuously at an arbitrary timing, but the business message with the serial number “1001” can be transmitted unless a new transmission permission message sequence number is transmitted from the trading server 1. It is not possible. The value of the transmission permission message sequence number newly transmitted from the trading server 1 is equal to or greater than the value of the transmission permission message sequence number transmitted immediately before (transmission permission message sequence number immediately before ≦ new transmission permission message sequence number). It becomes a message serial number. At this time, the trading server 1 may transmit a transmission permission message sequence number having the same value as that immediately before to the virtual server 1 according to its own processing status. Therefore, if the business message to which the sequence number having the same value as the transmission-permitted message sequence number has already been transmitted, the virtual server 2 starts a new transmission until the new transmission-permitted message sequence number is larger than the current transmission-permitted message sequence number. It is necessary to wait for the transmission of a new business message. With this operation, the amount of business messages transmitted from the virtual server 2 to the trading server 1 can be limited due to the convenience of the trading server 1.

  Next, an operation for transmitting a business message from the virtual server 2 shown in FIG. 1 to the trading server 1 will be described with reference to FIGS. First, the serial number initialization unit 18 refers to the output information of the timer 16 and waits until the start of the day's business, and at the time when the business starts (for example, 8:00 in the morning), the transmission permission message The serial number transmission unit 17 is instructed to initialize the serial number. In response to this, the transmission permission message sequence number transmission unit 17 resets the information stored in the message sequence number management information storage unit 19. On the other hand, the transmission permission message serial number storage unit 27 is reset (for example, “0” is written) when the communication line with the trading server 1 is disconnected. When detecting that the value stored in the transmission permission message sequence number storage unit 27 is “initial value” (for example, “0”), the message transmission unit 23 sets the value of the sequence number to be assigned to the business message to be transmitted to “ Reset to “initial value” (for example, “1”). At this time, since the value of the transmission permission message sequence number stored in the transmission permission message sequence number storage unit 27 is a reset value (for example, “0”), the message transmission unit 23 transmits the business message. Can not.

  Next, the transmission permission message sequence number transmission unit 17 refers to the output information of the timer 16 to determine whether or not it is time to transmit the transmission permission message sequence number, and when it is time to transmit, The first transmission-permitted message serial number is transmitted to the virtual server 2 after starting the business (see FIG. 2A). This transmission permission message sequence number is received by the message sequence number update unit 26 via the communication unit 21. The message sequence number update unit 26 compares the value of the received transmission permission message sequence number with the value of the transmission permission message sequence number stored in the transmission permission message sequence number storage unit 27, and stores the received transmission permission message sequence number. If the value is larger than the transmission permission message sequence number, the received transmission permission message sequence number is updated by overwriting the transmission permission message sequence number storage unit 27.

  With this operation, the message transmission unit 23 can start transmitting the business message stored in the transmission message storage unit 22 (see FIG. 2B). The transmission of the business message tries to transmit all the business messages currently stored in the transmission message storage unit 22, and the serial numbers assigned to the business messages to be transmitted are stored in the transmission permission message sequence number storage unit 27. It can be continued until it becomes the same value as the transmission permission message serial number (see FIG. 2C). The business message stored in the transmission message storage unit 22 is accumulated regardless of the transmission timing of the message transmission unit 23, and the business message storage operation and the business message transmission operation are synchronized. It is not a thing.

  On the other hand, when the received transmission permission message sequence number and the stored transmission permission message sequence number have the same value, the message sequence number update unit 26 does not update the stored transmission permission message sequence number. If the received transmission permission message sequence number is smaller than the stored transmission permission message sequence number, the message sequence number update unit 26 regards the received transmission permission message sequence number as invalid and stores the transmission permission message sequence number. The transmission permission message sequence number stored in the unit 27 is not updated.

  Next, the message receiving unit 13 receives the business message transmitted from the virtual server 2 via the communication unit 11, stores it in the received message storage unit 14, and receives the business message received in the message sequence number management information storage unit 19. Remember the serial number. In addition, the message reception unit 13 transmits a reception confirmation message including the message serial number assigned to the received business message from the message transmission unit 12 to the virtual server 2. The reception confirmation message is received by the message reception unit 24 via the communication unit 21 and stored in the reception message storage unit 25. As a result, the received message storage unit 25 stores the information of the serial number assigned to the business message that the trading server 1 has confirmed reception.

  On the other hand, the status analysis unit 15 analyzes its own processing status based on the amount of business messages stored in the received message storage unit 14 and the degree of execution of transaction processing, and notifies the transmission permission message sequence number transmission unit 17. The transmission permission message sequence number transmission unit 17 determines the increment value of the transmission permission message sequence number based on the processing status information notified from the status analysis unit 15, and adds this increment value to the transmission permission message sequence number already transmitted. This value is used as a new transmission permission message sequence number. Then, the transmission permission message sequence number transmission unit 17 refers to the output information of the timer 16 to obtain the elapsed time since the transmission permission message sequence number was transmitted immediately before, and this elapsed time may be a predetermined elapsed time. For example, the newly set transmission permission message sequence number is transmitted to the virtual server 2, and the new transmission permission message sequence number is stored in the message sequence number management information storage unit 19. As a result, the number of business messages that can be transmitted by the virtual server 2 is updated. At this time, the value of the transmission permission message serial number may not be updated depending on the processing status of the buying and selling server 1 (see FIGS. 2C and 3D).

  Thus, the buying and selling server 1 transmits the determined transmission permission message sequence number to the virtual server 2 according to its own processing status, and the virtual server 2 transmits the business message so as not to exceed the received transmission permission message sequence number. Since it transmits with respect to the sales server 1, it becomes possible to control the number of the business messages transmitted from the virtual server 2 to the sales server 1 (refer FIG.3 (e)).

  Next, with reference to FIG. 4, the operation | movement which transmits a business message to the virtual server 2 from the trading server 1 is demonstrated. The business message transmitted from the trading server 1 to the virtual server 2 is transmitted using the flow control of the TCP layer. Thereby, it is possible to prevent the trading server 1 from transmitting an excessive amount of telegrams to the virtual server 2. Since the operation of transmitting a business message from the trading server 1 to the virtual server 2 is performed by a known processing operation in principle, detailed description is omitted here. In the case where the business message transmitted from the trading server 1 to the virtual server 2 is efficiently transmitted without staying, the roles of the trading server 1 and the virtual server 2 are reversed and the message transmission control method according to the present invention is performed. May be used.

Next, a transmission / reception operation performed between the trading server 1 and the virtual server 2 illustrated in FIG. 1 will be described with reference to FIGS.
First, since the virtual server 2 has not received the transmission permission message sequence number from the trading server 1, it is in a state where it cannot transmit the business message to be transmitted (FIG. 5 (a)). Then, when the trading server 1 transmits “transmission permission message sequence number = 200” to the virtual server 2, the virtual server 2 receives this transmission permission message sequence number and holds it inside. As a result, the virtual server 2 can continuously transmit business messages until the message sequence number reaches 200 (FIG. 5B).

  Next, the virtual server 2 transmits 100 business messages (up to 100 message serial numbers) (FIG. 5C), and at that time, a new “transmission permitted message sequence number = 300” is transmitted from the trading server 1. Then, the virtual server 2 receives this transmission permission message sequence number and updates the value of the transmission permission message sequence number held therein from “200” to “300” (FIG. 6D). Furthermore, when the virtual server 2 transmits 100 new business messages (up to the message sequence number up to 200), when the transaction server 1 newly transmits “transmission permitted message sequence number = 400”, the virtual server 2 transmits this transmission message. The permitted message sequence number is received and the value of the transmission permitted message sequence number held therein is updated from “300” to “400” (FIG. 6E). As a result, the virtual server 2 can continuously transmit business messages until the message sequence number reaches 400. The transmission of the business message from the virtual server 2 to the trading server 1 and the transmission of the transmission permission message serial number from the trading server 1 to the virtual server 2 are not synchronized, and are transmitted at an arbitrary timing.

  Next, in a state where the transmission permission message sequence number held in the virtual server 2 is “1200” and the virtual server 2 is transmitting business messages up to “message sequence number = 1100” (FIG. 7A). Further, when the business message is transmitted until “message serial number = 1200” by continuing the transmission of the business message, the virtual server 2 stops the transmission of the business message even if the business message to be transmitted exists (see FIG. 7 (b)). The virtual server 2 waits until a new transmission permission message sequence number is transmitted from the trading server 1. Then, when “transmission permission message sequence number = 1300” is newly transmitted from the trading server 1, the virtual server 2 receives this transmission permission message sequence number and sets the value of the transmission permission message sequence number held therein to “1200”. To “1300”, and the transmission of the business message is resumed (FIG. 7C).

Next, with reference to FIG. 1 and FIG. 8, the operation when a business message to which a message sequence number exceeding the value of the transmission permitted message sequence number is given from the virtual server 2 is transmitted to the trading server 1 will be described. .
In a state in which the transmission permission message sequence number transmitted from the trading server 1 is “1200” and the virtual server 2 has already transmitted the business message up to “message sequence number = 1200”, the virtual server 2 thereafter transmits the business message. Transmission cannot be performed (FIG. 8A). However, if a business message to which the message sequence number “1201” exceeding the transmission permitted message sequence number is erroneously transmitted from the virtual server 2, the message reception unit 13 of the trading server 1 that has received this business message receives the message sequence number management. Since the value of the transmission permitted message sequence number already transmitted ("1200" in this case) is read from the information storage unit 19, and the message sequence number assigned to the received business message exceeds the value of the read transmission permitted message sequence number. The message is regarded as an illegal message, and the message transmission unit 12 is instructed to transmit a reject message. In response to this, the message transmission unit 12 gives a rejection reason to the virtual server 2 so that the virtual server 2 can recognize that it has been rejected because it exceeds the value of the transmission permission message sequence number. Transmit (FIG. 8B). If the business message to which the message sequence number exceeding the value of the transmission permitted message sequence number is further received (for example, three consecutive times), the message transmission unit 12 transmits each reject message for the unauthorized message. The communication unit 11 is instructed to disconnect the communication line established with the virtual server 2. In response to this, the communication unit 11 disconnects the communication line established with the virtual server 2. Thereby, it is possible to prevent continuous reception of business messages to which a message sequence number exceeding the value of the transmission permitted message sequence number is given. Even when a business message to which a message sequence number exceeding the value of the transmission permitted message sequence number is given is received once, the communication line may be immediately connected by the same process.

Next, with reference to FIG. 1 and FIG. 9, the operation when an unauthorized transmission permission message sequence number is transmitted from the trading server 1 will be described.
When the transmission permission message sequence number transmitted from the trading server 1 is “1200” and the business message has already been transmitted from the virtual server 2 to “message sequence number = 1100”, the virtual server 2 has the message sequence number “1200”. It is possible to transmit a business message until it becomes (FIG. 9A). In this state, the message sequence number update unit 26 of the virtual server 2 that has received “transmission permitted message sequence number = 1050” from the trading server 1 stores the transmission permitted message sequence number stored in the transmission permitted message sequence number storage unit 27. The value (here, “1200”) is compared with the value “1050” of the received transmission permission message sequence number, and the received transmission permission message sequence number value is smaller than the stored transmission permission message sequence number value. The transmission permission message sequence number is regarded as invalid, and the value of the transmission permission message sequence number stored in the transmission permission message sequence number storage unit 27 is not updated (FIG. 9B). Thereafter, when “transmission permitted message sequence number = 1300” is received from the trading server 1, the message sequence number updating unit 26 transmits the value because the value of the received transmission permission message sequence number is larger than the stored transmission permission message sequence number value. The value of the transmission permitted message sequence number stored in the permitted message sequence number storage unit 27 is updated to “1300” (FIG. 9C). Thus, since the value stored in the transmission permission message sequence number storage unit 27 is updated only when a valid transmission permission message sequence number value is received, an invalid transmission permission message sequence number value is received. Even in the case of an error, it is possible to prevent the transmission permission message sequence number having an incorrect value from being updated.

  Note that even if the virtual server 2 is in a transmission stopped state (a business message has been transmitted up to the transmission permitted message sequence number), a message (session control message) for controlling a session with the trading server 1 is not subject to transmission suspension. And can be transmitted to the trading server 1. Further, even when the trading server 1 receives a message in which a message sequence number exceeding the latest transmission permitted message sequence number notified to the virtual server 2 is received, the received message from the virtual server 2 is not subject to transmission suspension. If it is a session control message, the process is performed as usual.

  In this way, the virtual server 2 receives the transmission permission message sequence number determined by the trading server 1 according to its own processing status, and the sequence number assigned to the business message to be transmitted from the virtual server 2 to the trading server 1 is the transmission permission. Because the transmission of business messages is controlled so as not to exceed the message sequence number, in a trading system that sends and receives business messages related to trading between servers, business messages are not retained within the processing capacity of each server It can transmit and receive efficiently.

  The program for realizing the function of the processing unit in FIG. 1 is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into the computer system and executed to execute a transmission permission message sequence number. Notification processing and business message transmission control processing may be performed. Here, the “computer system” includes an OS and hardware such as peripheral devices. The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Further, the “computer-readable recording medium” refers to a volatile memory (RAM) in a computer system that becomes a server or a client when a program is transmitted via a network such as the Internet or a communication line such as a telephone line. In addition, those holding programs for a certain period of time are also included.

  The program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the “transmission medium” for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line. The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, and what is called a difference file (difference program) may be sufficient.

It is a block diagram which shows the structure of one Embodiment of this invention. It is explanatory drawing which shows operation | movement of the buying and selling server 1 and the virtual server 2 which are shown in FIG. It is explanatory drawing which shows operation | movement of the buying and selling server 1 and the virtual server 2 which are shown in FIG. It is explanatory drawing which shows operation | movement of the buying and selling server 1 and the virtual server 2 which are shown in FIG. It is explanatory drawing which shows operation | movement of the buying and selling server 1 and the virtual server 2 which are shown in FIG. It is explanatory drawing which shows operation | movement of the buying and selling server 1 and the virtual server 2 which are shown in FIG. It is explanatory drawing which shows operation | movement of the buying and selling server 1 and the virtual server 2 which are shown in FIG. It is explanatory drawing which shows operation | movement of the buying and selling server 1 and the virtual server 2 which are shown in FIG. It is explanatory drawing which shows operation | movement of the buying and selling server 1 and the virtual server 2 which are shown in FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Trading server, 11 ... Communication part, 12 ... Message transmission part, 13 ... Message reception part, 14 ... Received message memory | storage part, 15 ... Situation analysis part, 16 ...・ Timer, 17... Transmission permission message sequence number transmission unit, 18... Sequence number initialization unit, 19... Message sequence number management information storage unit, 2... Virtual server, 21. ..Transmission message storage unit, 23... Message transmission unit, 24... Message reception unit, 25... Received message storage unit, 26. Part, N ... communication network

Claims (9)

A trading system comprising a virtual server that transmits a business message and a trading server that performs a predetermined trading process based on the business message received from the virtual server,
The trading server is
According to its own processing status, it comprises a message sequence number transmission means for determining a transmission permitted message sequence number and transmitting the transmission permitted message sequence number to the virtual server,
The virtual server is
Serial number storage means for storing the transmission permission message serial number;
Serial number updating means for receiving the transmission permission message serial number from the trading server and storing it in the serial number storage means;
A message transmission means for giving a serial number to the business message to be transmitted to the trading server and transmitting it to the trading server;
Control means for controlling business message transmission by the message transmission means so that a serial number assigned to the business message to be transmitted does not exceed a transmission permission message sequence number stored in the sequence number storage means. A characteristic trading system.   The trading unit according to claim 1, wherein the control unit continuously transmits to the trading server a business message to which a sequence number not exceeding a transmission permission message sequence number stored in the sequence number storage unit is assigned. system. The message sequence number transmission means transmits the transmission permission message sequence number to be updated every predetermined time interval,
The said sequence number update means updates the transmission permission message sequence number memorize | stored in the said sequence number memory | storage means, whenever the said transmission permission message sequence number transmitted by the said message sequence number transmission means is received. The buying and selling system described in.   The sequence number update means does not update the transmission permission message sequence number stored in the sequence number storage means when the transmission permission message sequence number transmitted by the message sequence number transmission unit is an invalid sequence number. The trading system according to claim 3. The trading server is
A transmitted message sequence number storage unit that stores the transmission permitted message sequence number that has been transmitted to the virtual server by the message sequence number transmission unit;
When the serial number assigned to the business message received from the virtual server exceeds the transmission permitted message sequence number stored in the transmitted message sequence number storage means, the business message has not been received. The trading system according to claim 1, further comprising: a reception rejection control unit that transmits a reject message to be considered to the virtual server. The reception rejection control means includes
When a business message in which the serial number assigned to the business message received from the virtual server exceeds the transmission permitted message sequence number stored in the transmitted message sequence number storage means is continuously received, The trading system according to claim 5, wherein a communication line with the virtual server is disconnected. A virtual server comprising a serial number storage means for storing a transmission-permitted message serial number, and a message transmission means for assigning a serial number to the business message to be transmitted and transmitting it to the trading server, received from the virtual server A message transmission control method in a trading system comprising a trading server that performs predetermined trading processing based on a business message,
The trading server determines a transmission permission message sequence number according to its own processing status, and transmits the transmission permission message sequence number to the virtual server;
A sequence number updating step in which the virtual server receives the transmission permission message sequence number from the trading server and stores it in the sequence number storage means;
A control step for controlling transmission of the business message by the message transmission means so that the serial number assigned to the business message to be transmitted does not exceed the transmission permission message sequence number stored in the sequence number storage means. Characteristic message transmission control method. A virtual server comprising a serial number storage means for storing a transmission-permitted message serial number, and a message transmission means for assigning a serial number to the business message to be transmitted and transmitting it to the trading server, received from the virtual server In a trading system comprising a trading server that performs predetermined trading processing based on a business message, the trading server is a transmission permission message sequence number notification program for transmitting the transmission permission message sequence number,
A transmission-permitted message sequence number notification program that determines a transmission-permitted message sequence number according to its processing status and causes a computer to perform a message sequence number transmission step for transmitting the transmission-permitted message sequence number to the virtual server. . A virtual server comprising a serial number storage means for storing a transmission-permitted message serial number, a message transmission means for giving a serial number to a business message to be transmitted and transmitting it to the trading server, and according to its own processing status A transaction server that includes a message sequence number transmitting means for determining a transmission permitted message sequence number and transmitting the transmission permitted message sequence number to the virtual server, and performing a predetermined transaction process based on the business message received from the virtual server In the trading system consisting of: a business message transmission control program for controlling the transmission of the business message by the virtual server,
A serial number update step of receiving the transmission permission message serial number from the trading server and storing it in the serial number storage means;
A control step for controlling transmission of the business message by the message transmission means is performed on the computer so that the serial number assigned to the business message to be transmitted does not exceed the transmission permission message sequence number stored in the sequence number storage means. A business message transmission control program characterized by

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