WO2014203728A1 - Système, dispositif et procédé de commande de message et programme - Google Patents

Système, dispositif et procédé de commande de message et programme Download PDF

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Publication number
WO2014203728A1
WO2014203728A1 PCT/JP2014/064742 JP2014064742W WO2014203728A1 WO 2014203728 A1 WO2014203728 A1 WO 2014203728A1 JP 2014064742 W JP2014064742 W JP 2014064742W WO 2014203728 A1 WO2014203728 A1 WO 2014203728A1
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WIPO (PCT)
Prior art keywords
message
priority
unit
control system
reception
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PCT/JP2014/064742
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English (en)
Japanese (ja)
Inventor
純明 榮
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日本電気株式会社
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Publication of WO2014203728A1 publication Critical patent/WO2014203728A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
    • H04L51/21—Monitoring or handling of messages
    • H04L51/226—Delivery according to priorities

Definitions

  • the present invention relates to a message control system, a message control device, a message control method, and a program for controlling the priority of message transmission processing.
  • MOM message-oriented middleware
  • this is software that enables data communication between platforms, which is different from MOM, and generally employs a method for asynchronously transmitting and receiving messages.
  • Asynchronous means that in message transmission / reception, the message sender can move to the next process without waiting for the message receiver to receive the message, and the message receiver can also receive the message without matching the message transmission timing.
  • a messaging model provided by MOM includes a Pub-Sub (Publish-Subscribe) messaging model (hereinafter referred to as “Pub-Sub type communication”).
  • Pub-Sub type communication there are one publisher device that transmits a message, a plurality of subscriber devices that receive a message, and a broker device that relays a message. Register the type in the broker device. Then, the publisher device transmits a message to each broker device, and the broker device transmits and receives the message in such a manner that only a predetermined type of message is delivered to the subscriber device. In this method, the publisher device and the subscriber device are not directly connected to each other through the broker device. In addition, the processing of the broker device makes the transmission and reception of messages between the publisher device that is the transmission source and the subscriber device that is the reception side asynchronous. Therefore, once the publisher device transmits a message, the message is sent to the reception side of the message.
  • the subscriber device only needs to be able to receive a message from the broker device, not from the publisher device, and the connection between the publisher device and the subscriber device is relatively loose (loose coupling). That is, the interdependency regarding the coupling between the publisher device and the subscriber device may be low, and the independence of each is often high. Therefore, it is relatively easy for an administrator to dynamically add or delete subscriber devices from an existing MOM system.
  • Non-Patent Document 1 Non-Patent Document 2
  • this function determines the priority of message transmission on the message transmission side, and cannot reflect the reception order of messages requested by the message reception side.
  • Patent Document 1 describes a technique in which a relay device is provided between a message transmission device and a reception device, and the relay device selects and transmits a message according to the order requested by the message reception side.
  • Patent Document 1 requires a relay device that rearranges the transmission order of messages, and there is a problem such as additional costs, and it is not always applicable to an existing MOM system. Further, the method of Patent Document 1 requires processing for rearranging the transmission order of messages in the relay device, and requires time for the processing, and thus is not suitable for a situation where low delay of messages is required.
  • the publisher device messages sending side
  • subscriber device messages receiving side
  • Pub-Sub communication a company that manages the subscriber device specifies the message transmission priority using the message priority setting function of the publisher device. Can be difficult. That is, in the MOM environment, there is a problem that even if it is easy to add a subscriber apparatus, it is not easy to change the order in which messages are transmitted.
  • the present invention provides a message control system, a message control method, and a program capable of reflecting a message reception side request in message preparation on the message transmission side and priority of transmission processing in messaging processing in message-oriented middleware.
  • the purpose is that.
  • the present invention has been made to solve the above-described problems, and has a message transmitting device and a message receiving device,
  • the message transmitting device is A message priority determination unit that determines the priority of message transmission processing based on the reception order of messages requested by the message reception device;
  • a message preparation unit that performs the message transmission process based on the priority of the message transmission process determined by the message priority determination unit;
  • a message control system is provided.
  • the present invention also includes a message priority determination unit that determines the priority of message transmission processing based on the reception order of messages requested by the message reception device; A message preparation unit that performs the message transmission process based on the priority of the message transmission process determined by the message priority determination unit; There is also provided a message transmission device comprising: Further, the present invention determines the priority of message transmission processing based on the reception order of messages requested by the message receiving device, There is also provided a message control method for performing the message transmission process based on the determined priority of the message transmission process.
  • the present invention provides a message priority determination means for determining the priority of message transmission processing based on the reception order of messages requested by the message receiver, the computer of the message transmission device; Message preparation means for performing the message transmission processing based on the priority of the message transmission processing determined by the message priority determination means; A program characterized by functioning as a program is also provided.
  • the present invention in the messaging processing in the message-oriented middleware, it is possible to reflect the intention of the message reception side in the message preparation on the message transmission side and the priority of the transmission processing.
  • FIG. 1 is a diagram showing a minimum configuration of a message transmission device in the message control system according to the first embodiment.
  • reference numeral 100 represents a message transmitting apparatus.
  • the message transmission device (publisher device) 100 includes at least a message priority determination unit 10 and a message preparation unit 11.
  • the message priority determination unit 10 has a function of determining and storing the priority of message processing for each message type based on a request from the message receiving side regarding the order of receiving messages.
  • messages are classified according to their properties, for example, and managed by adding a key serving as a message type identifier.
  • the message preparation unit 11 reads the message processing priority determined and stored by the message priority determination unit 10 from a table or the like, and performs message preparation and transmission processing according to the read priority.
  • message preparation processing means that after receiving a message transmission processing request from a running application, the priority associated with the key indicating the message type can be read and the message can be transmitted with that priority.
  • the control process is shown as follows.
  • the message priority determination unit 10 and the message preparation unit 11 are functions provided when a CPU (Central Processing Unit) executes a program in a server device or the like.
  • FIG. 2 is a diagram showing the configuration of the message control system according to the first embodiment.
  • reference numeral 1 represents a message control system.
  • the message control system 1 includes a publisher device 100 and a subscriber device 200.
  • the present embodiment relates to the priority of message transmission in a message transmission / reception system using Pub-Sub communication.
  • the publisher apparatus 100 and the subscriber apparatus 200 are respectively connected to a message transmission apparatus and a message reception apparatus in Pub-Sub communication.
  • the publisher apparatus 100 includes a message priority determination unit 10, a message preparation unit 11, a storage unit 12, a message transmission unit 15, a request reception unit 16, and an application unit 17.
  • the subscriber device 200 is connected to the publisher device 100 via a network, and includes a message priority change request unit 20, a message reception unit 21, and an application unit 22.
  • a message priority change request unit 20 there are two subscriber apparatuses, and reference numerals of the subscriber apparatus 200 ⁇ / b> A and the subscriber apparatus 200 ⁇ / b> B are given to the respective subscriber apparatuses. The same applies to the message priority change request unit 20, the message reception unit 21, and the application unit 22.
  • the message transmission unit 15 is a functional unit that transmits a message.
  • the message transmission unit 15 also has a function corresponding to a broker that is a message mediation unit in Pub-Sub type communication. That is, the message transmitting unit 15 has information on which subscriber device is requesting a message with which key.
  • the message transmitting unit 15 can identify each subscriber who requests the message based on the key attached to the message when transmitting the message, and can distribute the message only to the subscriber.
  • the broker exists as an independent device, and may be connected to the publisher device 100 and the subscriber device 200 via a network.
  • the request receiving unit 16 has a function of receiving a request for changing a message priority from an arbitrary subscriber device 200 and outputting the request to the message priority determining unit 10.
  • the application unit 17 is a functional unit that creates a transmission message and makes a message transmission request to the message preparation unit 11.
  • the message priority determination unit 10 When the message priority determination unit 10 receives a message priority change request including information indicating the reception order of messages from the message priority change request unit 20 via the request reception unit 16, the message priority determination unit 10 prepares a message for each message type. It has a function of determining the priority of processing and transmission processing and storing the result in the priority table 13 of the storage unit 12.
  • the storage unit 12 is a database and holds the priority table 13.
  • the priority table 13 is a table that holds information indicating the priority of a message, and stores at least a key indicating the type of the message and information indicating the processing priority of the message indicated by the key.
  • the thread pool 14 is a group of a plurality of threads (processing units) having different priorities created by the message preparation unit 11 when the publisher apparatus 100 is activated.
  • thread priority setting in a UNIX (registered trademark) environment, for example, a “pthread” command is used to set the thread priority when creating a thread.
  • the meaning of generating threads with different priorities is that processing with CPU is preferentially assigned to high priority threads and processing is preferentially executed. Processing that is completed and assigned to a low priority thread is to be completed thereafter.
  • the message preparation unit 11 receives a command for requesting transmission of a message from the application unit 17 and, based on a key indicating the type of message included in the command, the processing priority of the message from the priority table 13 of the storage unit 12 It has a function to read the degree.
  • the message preparation unit 11 has a function of selecting a thread having a priority suitable for the processing priority of the read message from the thread pool 14 and causing the thread to prepare and transmit a message.
  • the processing performed by the message preparation unit 11 is effective in the following scenes, for example.
  • An application unit 17 functions, and the application unit 17 transmits a message A and a message B. Further, it is assumed that message A has a higher processing priority than message B, and information indicating that is stored in the priority table 13. Further, the application unit 17 sets up two threads by a program that realizes the function, and requests transmission of the message A and the message B in each of them. In such a case, the message preparation unit 11 selects a thread with high priority from the thread pool 14 and assigns message A transmission processing, and selects a thread with lower priority from the thread pool 14 to transmit message B. Assign processing. As a result, the processing of message A is preferentially performed and the processing of message B is not overtaken. As a result, according to the priority stored in the priority table 13, the message transmission unit 15 transmits the message A before the message B.
  • the message receiving unit 21 is a functional unit that receives the message transmitted by the message transmitting unit 15.
  • the application unit 22 is a functional unit that receives and processes the message received by the message receiving unit 21.
  • the message priority change request unit 20 has a function of transmitting information indicating the reception order of the messages received by the subscriber apparatus 200 to the publisher apparatus 100. The message reception order can be specified for each message type.
  • the message priority change request unit 20 may have a function of storing a message reception order to be transmitted to the publisher apparatus 100 in a table or the like.
  • the message priority determination unit 10, the message preparation unit 11, the message transmission unit 15, the request reception unit 16, and the application unit 17 described with reference to FIG. 2 are functional units provided when the CPU executes a program in the publisher apparatus 100. is there.
  • the message priority change request unit 20, the message reception unit 21, and the application unit 22 are functional units provided when the CPU executes a program in the subscriber unit 200.
  • the message preparation unit 11 controls the order in which messages are transmitted using threads having different priorities, but a process or task may be used instead of the thread.
  • the message transmission request process may be executed in a multi-process in the application unit 17 instructing the message transmission.
  • the message preparation unit 11 is also a process having a different priority. This is because it is necessary to assign message transmission processing. That is, when the publisher apparatus 100 is activated, a plurality of sub-processes having different priorities are created, a process is selected from the sub-process group according to the priority associated with the key assigned to the message, and the process is used.
  • the message to be transmitted may be prepared.
  • the priority can be set by using, for example, a command such as “set priority” system call, “cplimit”, “renice”, and “limit-m”. Further, during the message preparation process and the transmission process, the message preparation unit 11 may control the priority of the process and the resources allocated to the process.
  • FIG. 3 is a diagram illustrating state transition of the publisher apparatus according to the present embodiment.
  • the state transition of the publisher device 100 will be described using the state transition diagram of FIG.
  • the publisher apparatus 100 is activated (S1).
  • the message preparation unit 11 creates a plurality of threads (thread pool 14) having different priorities.
  • the message control system 1 enters a standby state (S2).
  • the message preparation unit 11 performs message preparation processing, and the message transmission unit 15 transmits a message (S3).
  • the message control system 1 again enters a standby state (S2).
  • the message priority determination unit 10 changes the priority of the message transmission process and stores the result in the storage unit 12 (S4).
  • the message control system 1 again enters a standby state (S2).
  • the message control system 1 stops.
  • FIG. 4 is a sequence diagram showing message priority change processing according to this embodiment.
  • the message priority changing process will be described with reference to the sequence diagram of FIG.
  • the user determines the order in which messages are received according to his / her intention and a predetermined algorithm, and instructs the subscriber apparatus 200 to change the message.
  • the message priority change request unit 20 of the subscriber device 200 receives the input of the instruction (step S101).
  • the message priority change request unit 20 transmits a message priority change request indicating the desired reception order for each message type to the publisher apparatus 100.
  • the request receiving unit 16 of the publisher device 100 receives the request (step S102).
  • the message priority determination unit 10 performs message priority determination processing.
  • the message priority determination unit 10 extracts a key indicating the message type and information indicating the reception order of the messages from the message priority change request. Then, the message priority determination unit 10 determines the message processing priority for each key by, for example, associating the reception order (from the beginning to the end) included in the request with the processing priority level as it is. (Step S103), the priority table 13 is updated (Step S104).
  • the algorithm for determining the order of receiving messages and the algorithm for determining the message processing priority for each key are not particularly limited in the present invention. For example, the following may be used. It is assumed that the subscriber device 200 receives the message with the key A and the message with the key B from the publisher device 100. Further, the subscriber device 200 needs the message with the key A before the message with the key B, and the priority table 13 of the publisher device 100 indicates “(key: A, It is assumed that the priority is registered with the contents “priority: high), (key: B, priority: medium)”.
  • the subscriber device 200 newly requires a message with a key C transmitted from the publisher device 100. Further, it is assumed that the subscriber device 200 needs the message with the key C earlier than the message with the key A.
  • the message priority change request unit 20 of the subscriber apparatus 200 says “(key: A, reception order: 2), (key: B, reception order: 3), (key: C, reception order: 1)”. Information is transmitted to publisher apparatus 100.
  • the smaller the numerical value specified in the reception order the earlier the order in which the message indicated by the corresponding key is received.
  • the message priority determination unit 10 uses a general algorithm based on the input information, “(key: C, priority: high), (key : A, priority: medium), (key: B, priority: low) ”, and the result is written in the priority table 13 and stored in the storage unit 12. That is, a record for key C is newly added, and information about priority is updated for the records for key A and key B.
  • the order in which messages are received by one subscriber apparatus is changed.
  • the same can be considered when messages are received by a plurality of subscriber apparatuses. For example, it is assumed that there are two subscriber devices, one of which receives a message with the key A, and the other receives a message with the key B.
  • FIG. 5 is a sequence diagram showing message transmission processing according to this embodiment.
  • the message transmission process will be described with reference to the sequence diagram of FIG.
  • the message preparation unit 11 generates a group of threads (thread pool 14) having different priorities at the time of activation.
  • the application unit 17 requests the message preparation unit 11 to transmit a message in the publisher apparatus 100.
  • the message preparation unit 11 specifies a key indicating a message based on a message transmission request received from the application unit 17, and reads the processing priority of the message indicated by the key from the priority table 13 using the key.
  • the message preparation unit 11 then associates a thread having an appropriate priority suitable for the processing priority with the thread pool 14 by associating the read processing priority level with the thread processing priority level as it is. Select (step S201). Subsequently, the message preparation unit 11 assigns message transmission processing to the thread and performs message preparation processing (step S202). When the message preparation is completed, the message transmission unit 15 transmits the message (step S203).
  • the algorithm for selecting a thread with an appropriate priority is not particularly limited in the present invention.
  • FIG. 6 is a diagram showing a data table holding keys, priorities, and subscribers according to the present embodiment.
  • a data table holding keys, priorities, and subscribers will be described with reference to FIG. That is, the priority table 13 may store not only keys and priorities but also information on subscribers (subscribers) who receive messages as shown in FIG.
  • FIG. 7 is a diagram showing a configuration of a message control system according to the second embodiment.
  • the message control system 1 according to the present embodiment is different from the first embodiment in that a broker device 300 is provided.
  • Other configurations of the message control system 1 according to the second embodiment are the same as those of the first embodiment.
  • the broker device 300 is connected to the publisher device 100 and the subscriber device 200 via a network.
  • the broker device 300 is a message mediating device that mediates message transmission / reception between the publisher device 100 and the subscriber device 200.
  • the broker device 300 has information about which subscriber device 200 receives a message distributed by the publisher device 100.
  • the broker device 300 associates the message with the subscriber device 200 for each key attached to the message, and requests the message in the order transmitted by the publisher device 100. Deliver a message to
  • the broker device 300 has a function of mediating transmission / reception of a message priority change request requested by the subscriber device 200 in addition to a function of mediating message transmission / reception.
  • the message priority change request is also transmitted using Pub-Sub communication, and when the broker device 300 receives a message priority change request from a certain subscriber device 200, the request is sent to the appropriate publisher device 100. It has a function to transmit.
  • not only a message but also a message priority change request can be transmitted between the publisher apparatus 100 and the subscriber apparatus 200, and the request can be transmitted without specifying the transmission destination. Therefore, in this embodiment, the effect that the independence of the publisher apparatus 100 and the subscriber apparatus 200 increases is acquired.
  • the broker apparatus 300 does not need to exist as an independent apparatus as shown in FIG.
  • the broker function unit may be operating in the publisher apparatus 100.
  • FIG. 8 is a sequence diagram showing a message priority change request transmission process according to this embodiment.
  • a message priority change request transmission process will be described with reference to the sequence diagram of FIG.
  • the user determines the order in which messages are received based on his / her own judgment and a predetermined algorithm, and instructs the message priority change request unit 20 to change the message (step S301).
  • the message priority change request unit 20 transmits a message priority change request to the broker device 300 (step S302).
  • the broker device 300 stores the relationship between the publisher device 100 and the subscriber device 200 in a table or the like for each message key.
  • the broker apparatus 300 When the broker apparatus 300 receives a message priority change request from a certain subscriber apparatus 200, the broker apparatus 300 uses this key information indicating the type of message included in the request and information indicating the subscriber apparatus 200 that is the transmission source of the request. Search for. Then, the broker device 300 reads information indicating the publisher device 100 (the publisher device 100 that transmits the message in other words) to which the message priority change request is delivered (step S303), and the message priority change mediated is mediated. The request is transmitted to the appropriate publisher apparatus 100 (step S304). The message priority change process after the publisher apparatus 100 receives the message priority change request from the broker apparatus 300 is as described in FIG.
  • FIG. 9 is a diagram showing a configuration of a message control system according to the third embodiment.
  • a computer environment as shown in FIG. 9 can be assumed.
  • each server device in FIG. 9, server devices A, B, and C
  • each server device includes a subscriber function unit 200F
  • An application that takes the received message into the server device is executed.
  • Each server device may use the publisher function unit 100F to transmit a message to the subscriber function unit 200F of another server terminal that requires the processing result of the captured message.
  • the message control system 1 described above has a computer inside.
  • Each process of the message control system 1 described above is stored in a computer-readable recording medium in the form of a program, and the above process is performed by the computer reading and executing the program.
  • the computer-readable recording medium means a magnetic disk, a magneto-optical disk, a CD-ROM, a DVD-ROM, a semiconductor memory, or the like.
  • the computer program may be distributed to the computer via a communication line, and the computer that has received the distribution may execute the program.
  • the program may be for realizing a part of the functions described above. Furthermore, what can implement
  • the present invention in the messaging processing in the message-oriented middleware, it is possible to reflect the intention of the message receiving side in the message preparation on the message transmitting side and the priority of the transmission processing.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

L'invention concerne un système de commande de message qui possède un dispositif de transmission de message et un dispositif de réception de message. Le dispositif de transmission de message est équipé d'une unité de détermination de priorité de message, qui détermine la priorité d'un processus de transmission de message sur la base d'un ordre de réception de message demandé par le dispositif de réception de message, ainsi qu'une unité de préparation de message, qui exécute le processus de transmission de message sur la base de la priorité de processus de transmission de message déterminée par l'unité de détermination de priorité de message.
PCT/JP2014/064742 2013-06-19 2014-06-03 Système, dispositif et procédé de commande de message et programme WO2014203728A1 (fr)

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JP2013-128237 2013-06-19

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019160274A (ja) * 2018-03-13 2019-09-19 富士電機株式会社 メッセージ処理システム、メッセージ処理装置及びメッセージ処理方法
WO2022208857A1 (fr) * 2021-04-01 2022-10-06 日本電信電話株式会社 Système de communication, dispositif d'inspection, procédé d'inspection et programme

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11312093A (ja) * 1998-04-28 1999-11-09 Hitachi Ltd 分散処理システム
WO2010090027A1 (fr) * 2009-02-05 2010-08-12 日本電気株式会社 Noeud d'agent intermédiaire et procédé de commande de sujet d'évènement dans un système distribué de distribution d'évènement
JP2011182115A (ja) * 2010-02-26 2011-09-15 Hitachi Ltd 通信方法、通信システム及びサーバ
JP2012216039A (ja) * 2011-03-31 2012-11-08 Fujitsu Ltd メタ情報生成装置及びプログラム

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11312093A (ja) * 1998-04-28 1999-11-09 Hitachi Ltd 分散処理システム
WO2010090027A1 (fr) * 2009-02-05 2010-08-12 日本電気株式会社 Noeud d'agent intermédiaire et procédé de commande de sujet d'évènement dans un système distribué de distribution d'évènement
JP2011182115A (ja) * 2010-02-26 2011-09-15 Hitachi Ltd 通信方法、通信システム及びサーバ
JP2012216039A (ja) * 2011-03-31 2012-11-08 Fujitsu Ltd メタ情報生成装置及びプログラム

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019160274A (ja) * 2018-03-13 2019-09-19 富士電機株式会社 メッセージ処理システム、メッセージ処理装置及びメッセージ処理方法
JP7077840B2 (ja) 2018-03-13 2022-05-31 富士電機株式会社 メッセージ処理システム、メッセージ処理装置及びメッセージ処理方法
WO2022208857A1 (fr) * 2021-04-01 2022-10-06 日本電信電話株式会社 Système de communication, dispositif d'inspection, procédé d'inspection et programme

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