JP6384289B2 - Synchronization processing apparatus, synchronization processing system, synchronization processing method, and synchronization processing program - Google Patents

Description

  The present invention relates to a synchronization processing device, a synchronization processing system, a synchronization processing method, and a synchronization processing program, and in particular, a synchronization processing device, a synchronization processing system, a synchronization processing method, and a synchronization processing for synchronizing data of a plurality of devices. Regarding the program.

  Patent Document 1 discloses a communication system including a subscriber information management device (HSS: Home Subscriber Server). The HSS stores subscriber data including subscriber identification information and service information provided to the subscriber, and provides services to the subscriber's terminal.

  This communication system employs a redundant configuration including two HSSs of A system and B system. The subscriber communicates with the A-system or B-system HSS to use / change the subscriber data. The two HSSs periodically synchronize data by mutually copying subscriber data. For this reason, the subscriber can receive service provision from the other HSS based on the subscriber data updated by one HSS.

JP 2009-278435 A

  The two HSSs disclosed in Patent Document 1 periodically synchronize subscriber data. Therefore, when a failure occurs in either HSS, subscriber data in the cycle immediately before the failure is lost.

  In order to prevent this loss of subscriber data, it is conceivable to synchronize two HSS subscriber data in real time. However, when two HSSs are redundant by inter-region redundancy, in real-time synchronization, a synchronization delay due to distance occurs and processing capacity decreases.

  In order to prevent this reduction in processing capacity, after duplicating between regions, adopt a duplex configuration for each region, and synchronize subscriber data in real time between HSSs in the same region. Can be considered. However, this configuration becomes a quadruple redundant configuration and consumes a large amount of resources.

  An object of the present invention is to provide a synchronization processing device, a synchronization processing system, a synchronization processing method, and a synchronization processing program for solving the above-described problems.

  The synchronization processing apparatus according to an embodiment of the present invention is a unit that operates in a virtual computer, extracts update data from communication data received from a terminal device, updates a file accessed by the virtual computer, Business processing means for transmitting synchronous data including update data to another device; and 1) communication data received by the business processing means from a terminal device is acquired from a control means for operating the virtual machine and retained, and the business processing means When the synchronization data transmission failure is detected by the processing means, the held communication data is transmitted to the other device. 2) When the communication data held by the other device is received, the update data is extracted and the file is extracted. Monitoring means for updating.

  A synchronization processing method according to an embodiment of the present invention is a virtual processing method that extracts update data from communication data received from a terminal device, updates a file, and transmits synchronization data including the update data to another device. 1) The communication data received from the terminal device in the business process is acquired and held from the control means for executing the virtual machine, and held when synchronization data transmission failure is detected in the business process. 2) When the communication data held by the other device is received, update data is extracted and the monitoring process for updating the file is executed outside the virtual machine. .

  A synchronization processing program according to an embodiment of the present invention is executed by a virtual machine, extracts update data from communication data received from a terminal device, updates a file, and transmits synchronization data including the update data to another device. A business process program that executes a business process to be transmitted and a computer that is executed outside the virtual machine by a computer that executes the virtual machine. 1) Control that causes the virtual machine to execute communication data received from a terminal device in the business process. When the synchronization data transmission failure in the business process is detected, the communication data held is transmitted to the other device, and 2) the communication data held by the other device is received. Including a monitoring program that extracts update data and executes a monitoring process for updating the file.

  The synchronization processing apparatus according to the present invention can efficiently prevent data loss due to periodic data synchronization performed between a plurality of apparatuses.

FIG. 1 shows a configuration example of a synchronization processing system 90 including a synchronization device 10 having a virtualized HSS. FIG. 2 shows a flow of communication data 71 between the HSS_APL on the virtual HSS and the opposite device 72. FIG. 3 is a diagram illustrating a configuration of the synchronization processing apparatus 10 including the monitoring program 40. FIG. 4 is a diagram for explaining the processing of the monitoring program 40. FIG. 5 is a diagram illustrating a configuration of the synchronization processing device 10 according to the second embodiment.

<First Embodiment>
In this embodiment, the HSS is virtualized. FIG. 1 shows a configuration example of a synchronization processing system 90 including a synchronization processing apparatus 10 having a virtualized HSS.

  In the present embodiment, the synchronization processing device 10 is a computer device. The synchronous processing apparatus 10 includes a virtual machine monitor 31 that is a program for generating and executing the virtual machine 20, and a host OS 30 (Operating System) that provides an execution environment thereof.

  Here, the host OS 30 is, for example, Linux (registered trademark). The virtual machine monitor 31 is, for example, a KVM (Kernel-based Virtual Machine). The host OS 30 and the virtual machine monitor 31 may be integrated base software dedicated to the virtual machine.

  The virtual machine monitor 31 and the host OS 30 cooperate to cause the virtual machine 20 to be executed. In the present embodiment, the virtual computer 20 is a virtualized HSS (hereinafter referred to as a virtual HSS).

  The virtual HSS executes the guest OS 23 and the business processing program 21 therein. Here, the guest OS 23 is, for example, Linux (registered trademark). The business processing program 21 is an application program (hereinafter referred to as HSS_APL) that processes HSS business.

  The HSS also includes a business file 22 that is accessed by the HSS_APL in the virtual machine 20. The business file 22 stores user information, for example. For example, the HSS_APL performs transmission / reception of the communication data 71 with the user's terminal device, a) extracts user information update data from the communication data 71, and b) stores in the business file 22 based on the user information update data. Update stored user information.

  The business file 22 may be any file that can be accessed by the HSS_APL, and is not necessarily provided in the synchronization processing apparatus 10. The business file 22 may exist on another file server device connected to the synchronization processing device 10 via a network.

  In the present embodiment, the synchronization processing system 90 includes a plurality of synchronization processing devices 10 distributed in a plurality of regions. The synchronization processing system 90 has an inter-region redundancy configuration (Geo-Redundancy) by the virtual HSS in the plurality of synchronization processing devices 10. The synchronization processing system 90 includes, for example, virtual HSSs in Tokyo and Osaka, respectively, and provides services to users in the Tokyo and Osaka areas, respectively.

  The user accesses any one of the plurality of virtual HSSs, updates the user information in the business file 22, and receives a service based on the user information. That is, for example, the user accesses the virtual HSS in the Tokyo area in Tokyo to update the user information, accesses the virtual HSS in the Osaka area in Osaka, and services based on the user information updated in Tokyo. Receive the offer.

  Therefore, the user information stored in the business file 22 included in the plurality of virtual HSSs must be synchronized. Normally, in this synchronization, the HSS_APL on each virtual HSS transmits update data received from the user's terminal device to the other system, and the other system's HSS_APL updates its own business file 22 based on the update data. Is achieved.

  However, when a failure occurs in the HSS_APL in a certain area, the HSS_APL may not be able to transmit update data to a virtual HSS in another area. The present embodiment efficiently solves this problem.

  FIG. 2 shows a flow of communication data 71 between the HSS_APL on the virtual HSS and the opposite device 72. Here, the opposing device 72 is, for example, a user terminal device and another synchronization processing device 10. A line segment having a bidirectional arrow in the figure indicates a flow of communication data 71 between the HSS_APL on the virtual HSS and the opposing device 72.

  The communication data 71 transmitted from the opposite device 72 to the HSS_APL reaches the communication port 11 provided in the synchronization processing device 10, for example, a LAN port (Local Area Network), and is received by the host OS 30. The communication data 71 received by the host OS 30 is delivered to the virtual communication port of the virtual machine 20 by the virtual machine monitor 31 and received by the guest OS 23. Then, the guest OS 23 outputs the communication data 71 to the HSS_APL that is the business processing program 21.

  The communication data 71 transmitted by the HSS_APL to the opposite device 72 follows the reverse flow. The point here is that all the communication data 71 flowing between the HSS_APL and the opposing device 72 passes through the host OS 30.

  The synchronization processing device 10 includes a monitoring program 40 that monitors the communication data 71 flowing between the HSS_APL and the opposite device 72 and acquires necessary data.

  FIG. 3 is a diagram illustrating a configuration of the synchronization processing apparatus 10 including the monitoring program 40. The monitoring program 40 acquires communication data 71 using an API (Application Program Interface) provided by the host OS 30. This API is, for example, a communication driver. A specific API depends on the host OS 30, but such an API is well known.

  The monitoring program 40 includes, for example, a communication driver or a communication driver addition routine and a monitoring process. When the virtual machine monitor 31 provides a monitoring API for the communication data 71, the monitoring program 40 may monitor the communication data 71 using the API.

  FIG. 4 is a diagram for explaining the processing of the monitoring program 40.

  A) First, the monitoring program 40 monitors the communication data 71 using the above-described API, and holds the communication data 71 received by the HSS_APL from the user terminal device (hereinafter, the held data is referred to as held data). ).

  B) The monitoring program 40 monitors the communication data 71, and when the HSS_APL detects that "update data is not normally transmitted" to the other synchronization processing device 10, the retained data is transferred to the other synchronization processing device 10 as follows. (B arrow in the figure). This transmission is performed via the host OS 30 and the communication port 11. When the HSS_APL does not normally transmit update data to another synchronization processing apparatus 10, there is a high possibility that a failure has occurred in the own virtual HSS.

  Here, when the HSS_APL periodically transmits update data to another synchronization processing apparatus 10, the monitoring program 40, for example, if there is no transmission of synchronization data beyond the time of one cycle, “update data Is not sent normally ". When the virtual machine monitor 31 includes an API for notifying the normality / abnormality of each virtual machine 20, the monitoring program 40 detects the abnormality of the virtual machine 20 using the API, and displays “update data. It may be determined that the message is not transmitted normally.

  C) It should be noted that the monitoring program 40 may discard the retained data when it detects that the HSS_APL has successfully transmitted the update data to the other synchronization processing apparatus 10. In this case, it can be assumed that the update data of the own system in the immediately preceding cycle is normally transmitted to the other system and reflected in the business file 22 of the other system.

  D) When holding data is received from another monitoring program 40, the monitoring program 40 first 1) received holding data, that is, communication data transmitted from the user's terminal to the HSS_APL of the other synchronization processing apparatus 10. User information update data is extracted from 71. This process is the same as the above-described process a) of HSS_APL.

  Next, 2) the monitoring program 40 updates the business file 22 based on the extracted user information update data (arrow D in the figure). This process is the same as the above-described process b) of HSS_APL.

  Here, the monitoring program 40 updates the business file 22 on the virtual machine 20 from outside the virtual machine 20. Therefore, the monitoring program 40 needs to refer to the mapping rule between the address of the virtual file and the address of the real file storing the virtual file for the business file 22. Such a mapping rule is simple when the business file 22 is allocated to a disk volume dedicated to the virtual file. This is because the mapping rule is a volume-based mapping rule. Of course, the synchronization processing apparatus 10 according to the present embodiment does not require such virtual file allocation.

  The synchronization processing apparatus 10 according to the present embodiment can efficiently prevent the loss of update data by periodic file synchronization performed between the plurality of synchronization processing apparatuses 10. The reason is that the monitoring program 40 detects that the update data of the business file 22 is not transmitted by the business processing program 21, and is the communication data 71 received by the local business processing program 21 from the user's terminal device. This is because the retained data is transmitted to another system. When the other-system monitoring program 40 receives the retained data, the other-system monitoring program 40 updates the own business file 22 and synchronizes the user information based on the retained data.

  Furthermore, the synchronization processing apparatus 10 according to the present embodiment can prevent an increase in data size necessary for processing even in high-speed packet communication. The reason is that when the monitoring program 40 detects transmission of update data for synchronizing the business file 22 by the business processing program 21, the retained data is discarded.

  Since the data size of the retained data does not increase, the monitoring program 40 can retain the communication data 71 on the memory. Therefore, there is an effect that the disk input / output of the synchronization processing apparatus 10 is not compressed. In a virtualized configuration, a plurality of virtualized devices may coexist on one computer device. For this reason, it is important to make a design that does not put pressure on the disk input / output.

<Second Embodiment>
FIG. 5 is a diagram illustrating a configuration of the synchronization processing device 10 according to the present embodiment.

  The synchronization processing apparatus 10 according to the present embodiment includes a business processing unit 62 and a monitoring unit 63.

  The business processing unit 62 operates in the virtual machine 20, extracts update data from the communication data 71 received from the user's terminal device, updates the file accessed by the virtual machine 20, and updates Synchronous data including data is transmitted to another device.

  The monitoring unit 63 acquires and holds the communication data 71 received from the terminal device by the business processing unit 62 from the control unit that operates the virtual computer 20. The communication data 71 being transmitted is transmitted to the other synchronization processing apparatus 10. In addition, when the monitoring unit 63 receives the communication data 71 held by another synchronization processing apparatus 10, the monitoring unit 63 extracts update data and updates the file.

  Here, the control unit corresponds to the host OS 30 and the virtual machine monitor 31 in the first embodiment. However, the control unit may be configured by a logic circuit as a dedicated device for executing the virtual machine 20.

  The business processing unit 62 corresponds to the business processing program 21 in the first embodiment. However, the business processing unit 62 may be configured with a logic circuit as a dedicated device that operates within the environment of the virtual machine 20.

  The business processing performed by the business processing unit 62 is not limited to the HSS business processing. As long as the update data is extracted from the communication data 71, the file accessed by the virtual machine 20 is updated, and the synchronization data is transmitted to the other synchronization processing apparatus 10, other business processes may be used.

  The monitoring unit 63 corresponds to the monitoring program 40 in the first embodiment. However, the monitoring unit 63 may be configured with a logic circuit as a dedicated device.

  The synchronization processing apparatus 10 according to the present embodiment can efficiently prevent data loss by periodic data synchronization performed between the plurality of synchronization processing apparatuses 10. The reason is that when the monitoring unit 63 detects that the update data for file synchronization is not transmitted by the job processing unit 62, the communication data 71 received by the own job processing unit 62 from the user terminal device is used. This is because certain retained data is transmitted to another system. When the other-system monitoring unit 63 receives the retained data, it updates the own-system file based on the retained data.

  While the present invention has been described with reference to the embodiments, the present invention is not limited to the above embodiments. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Synchronous processing apparatus 11 Communication port 20 Virtual machine 21 Business processing program 22 Business file 23 Guest OS
30 Host OS
40 Monitoring Program 31 Virtual Machine Monitor 62 Business Processing Unit 63 Monitoring Unit 71 Communication Data 72 Opposing Device 90 Synchronous Processing System

Claims (8)

A means that operates in the virtual machine, extracts update data from communication data received from a terminal device, updates a file accessed by the virtual machine, and transmits synchronous data including the update data to another device Business processing means;
1) The communication data received from the terminal device by the business processing means is acquired from the control means for operating the virtual machine and held, and when the transmission failure of the synchronous data by the business processing means is detected, the held communication data A synchronization processing apparatus comprising: monitoring means for transmitting data to another apparatus, and 2) extracting update data when communication data held by the other apparatus is received and updating the file. The business processing means transmits the synchronization data including the update data obtained in the immediately preceding period to the other device every predetermined period, and when receiving the synchronization data from the other device, extracts the update data and Update the file,
When the monitoring means detects 1) transmission of synchronous data via the control means, it discards the communication data it holds, and 2) if it does not detect transmission of synchronous data for a predetermined period or more, the business processing means The synchronization processing device according to claim 1, which determines that the transmission of the synchronization data has failed and transmits the held communication data to another device. The control means is a host OS that controls the synchronous processing device and a virtual machine monitor that is executed on the host OS,
The business processing means is an application program executed on the virtual computer, and communicates with a terminal device and other devices via the virtual computer monitor and the host OS,
3. The synchronization according to claim 1, wherein the monitoring unit is a program executed on the host OS, and detects communication of the application program and acquires communication data via the host OS. Processing equipment.   A synchronization processing system including the synchronization processing device according to any one of claims 1 to 3 and another device that communicates synchronization data with the synchronization processing device. The update data is extracted from the communication data received from the terminal device, the file is updated, and the business process for transmitting the synchronization data including the update data to the other device is executed in the virtual machine,
1) The communication data received from the terminal device in the business process is acquired and held from the control means for executing the virtual machine, and when the synchronization data transmission failure is detected in the business process, the held communication data is 2) A synchronous processing method in which, when communication data held by another device is received, update data is extracted when the communication data held by the other device is received, and monitoring processing for updating the file is executed outside the virtual computer. In the business process, the synchronization data including the update data obtained in the immediately preceding period is transmitted to another device every predetermined period. When the synchronization data is received from the other device, the update data is extracted and the file is extracted. Update
In the monitoring process, 1) if transmission of synchronous data is detected via the control means, the communication data held is discarded, and 2) if transmission of synchronous data is not detected for a predetermined period or longer, The synchronization processing method according to claim 5, wherein it is determined that the transmission of the synchronization data has failed, and the held communication data is transmitted to another device. A business processing program that is executed by the virtual machine, extracts update data from the communication data received from the terminal device, updates the file, and executes business processing for transmitting synchronous data including the update data to another device;
It is executed outside the virtual machine by a computer that executes the virtual machine, and 1) acquires and holds communication data received from a terminal device in the business process from a control unit that executes the virtual machine. When the transmission failure of the synchronous data is detected, the communication data held is transmitted to the other device. 2) When the communication data held by the other device is received, the update data is extracted and the file is updated. A synchronization processing program including a monitoring program for executing the monitoring processing. When the business processing program transmits, to the virtual machine, synchronous data including update data obtained in the immediately preceding period to another device every predetermined period, and when receiving synchronous data from the other device, the update data And execute the business process to update the file,
When the monitoring program detects to the computer 1) transmission of synchronization data via the control means, the communication data held is discarded, and 2) if transmission of synchronization data is not detected for a predetermined period or longer, The synchronization processing program according to claim 7, wherein it is determined that transmission of synchronization data in the business process has failed, and the monitoring process for transmitting the held communication data to another apparatus is executed.

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