JP3471717B2 - Nonstop online service system, method, and recording medium - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system, a method and a recording medium for non-stop online service, and more particularly to control when alternately operating an active system and a standby system.

[0002]

2. Description of the Related Art Conventionally, for an online system, batch processing that requires static data (data at a quiescent point) at a certain point of time, maintenance work such as database reorganization, program replacement, and file saving are performed. In order to
It was done at midnight when the online business ends, or on holidays when there is no online business.

In order to enable batch processing and maintenance work to be executed concurrently during a new operation in a non-stop online system that operates without stopping the online business even at night, such as the accounting system of a financial institution. Had to make major modifications to the program it was using. Furthermore, it is inevitable that the system infrastructure software and application software will be greatly affected by this modification.

As a means for avoiding this, in order to execute online processing and batch processing in parallel, it is known to duplicate the active system for online processing and the standby system for batch processing and maintenance work. There is. For example, in Japanese Patent Laid-Open No. 4-256141, when batch processing or maintenance work is not executed in the standby system, the update information of the online data by the active system is sequentially sent to the standby system, and the update information sent by the standby system is used. By updating the online data, the online data of the standby system can be kept up to date, and when batch processing or maintenance work is being executed on the standby system,
It is disclosed that the update information of the online data by the active system is temporarily stored in a file and the update information accumulated after the processing is reflected in the online data of the standby system.

[0005]

However, in the above-mentioned non-redundant system, when shifting to non-stop operation, there is a problem that a large modification is required to the software assets and a large cost is required. It was Also, in a duplicated system, if you switch from the standby system to the active system immediately after executing batch processing and maintenance work for a long time, you must wait until all the accumulated update information is reflected in the online data. There was a problem that processing could not be started.

[0006]

A first non-stop online service system according to the present invention comprises an active data processing apparatus for executing online processing and a standby data processing apparatus for executing batch processing or maintenance work. Provided, the data processing device is alternately switched between the active system and the standby system to operate, and the data processing device of the active system and the standby system respectively,
A data file that stores data handled in online processing, an update information storage unit that stores update information when the data file is updated when a message sent from a terminal device is processed, and a standby system to an active system And a reflecting means for reflecting the update information of the update information storage means stored in the data processing device, which has become a standby system when the system is switched, to the data file, and the reflecting means from the time when the system is switched. In the transition transition until the end of reflecting all the update information to the data file of the active system,
The data processing device that has become the standby system receives a message from the terminal device, reads the data corresponding to the received message from the data file that has become the standby system, adds it to the received message, and sets it as the active system. The data processing device that has become the active system has means for receiving the electronic message with the data and updating the data file that has become the active system to the latest data before processing the electronic message. .

A second non-stop online service system of the present invention has a data processing device A and a data processing device B, one of which executes online processing as an active system.
The other performs batch processing or maintenance work as a standby system,
The active system and the standby system are alternately switched and operated, and access is made from both the data processing device A and B, and a message distribution device having a message distribution processing unit that receives a message for online processing and controls the destination of the message. The data processing apparatus A has a possible shared storage device, and the data processing apparatus A updates or refers to the data file A that stores data for online processing and the data file A when receiving a message from the message distribution processing unit. When the data file A is updated while the message is processed, the update information A
An online processing unit A for storing the data in the shared storage device;
A moving data reflection processing unit A for reflecting the update information B in the shared storage device, which was accumulated while the data processing device B was in the active system when the standby system was switched to the active system, to the data file A; When the electronic message is received from the electronic message distribution processing unit, the data corresponding to the electronic message read from the data file A is added to the electronic message and sent to the data processing device B, and the data is sent from the data processing device B. And a data reference processing unit A that sends the electronic message to the online processing unit A after reflecting the data attached to the electronic message in the data file A when the received electronic message is received. The device B updates or refers to the data file B that stores the data for online processing and the data file B when it receives a message from the message distribution processing unit. An electronic processing unit B that processes the electronic message and stores the updated information B in the shared storage device when the data file B is updated; and the data processing device when the standby system is switched to the active system. When a message is received from the mobile data reflection processing unit B that reflects the update information A in the shared storage device that has been accumulated while A is the active system to the data file B, and the message distribution processing unit, When the data corresponding to the electronic message read from the data file B is added to the electronic message and sent to the data processing device A, and the electronic message with the data is received from the data processing device A, it is added to the electronic message. And a data reference processing unit B for transmitting the electronic message to the online processing unit B after reflecting the data in the data file B.

According to a third non-stop online service system of the present invention, in the second non-stop online service system, the electronic message distribution processing section is used from the time when the standby system is switched to the active system. In the transition transition until the moving data reflection processing unit A or B of the data processing device which has become all the reflection information B or A in the shared storage device is completely reflected in the data file A or B It is characterized in that a message is sent to the data reference processing unit A or B that has become a system, and if the switching transition is not in progress, a message is sent to the online processing unit A or B of the active system.

According to a fourth non-stop online service system of the present invention, in the second or third non-stop online service system, the shared storage device updates the data file A with the update information A. A
And the update information B of the data file B, which is written by
Is written by the online processing unit B and read by the movement data reflection processing unit A.

A fifth non-stop online service system of the present invention is the system of the second, third or fourth non-stop online service, wherein the electronic message of the online processing is the electronic message distribution device and the data processing device A. ,
And sent from an online terminal device or another data processing device connected to the data processing device B through a network or a communication line, received by the electronic message distributing device, and distributed to the data processing device A or the data processing device B. It is characterized by being.

A sixth non-disruptive online service system of the present invention has an active subsystem for executing online processing and a standby subsystem for executing batch processing or maintenance work on a data processing device. , The subsystem is alternately switched between the active system and the standby system to operate, and the subsystems of the active system and the standby system respectively store the data file storing the data handled in the online processing and the message sent from the terminal device. Update information storage means for storing update information when the data file is updated when processed, and the update information storage stored by the subsystem that becomes the standby system when the standby system is switched to the active system Reflecting means for reflecting the update information of the means to the data file, and from the time when the system is switched, all the updating means by the reflecting means. During transition for change to the time to be completely reflect information to the data file of the active system, the subsystem in the standby system receives the message from the terminal device,
The data corresponding to the received electronic message is read from the data file that has become the standby system, added to the received electronic message and sent to the subsystem that has become the active system, and the subsystem that has become the active system has the data with the data. And a means for processing the message after the data file that has become the active system upon receiving the message is updated to the latest data.

In a seventh non-stop online service system of the present invention, a subsystem A and a subsystem B are provided on a data processing device, one of which executes online processing as an active system, and the other of which is a batch system as a standby system. Subsystem C having a message distribution processing unit that executes processing or maintenance work, is operated by alternately switching the active system and the standby system, receives an online message, and controls the destination of the message, and the subsystem. A and a moving data file accessed from the subsystem B, the subsystem A stores the data file A for storing data of online processing, and the data file A when receiving a message from the message distribution processing unit. Update or refer to to process the message and update the data file A when it is updated. An online processing unit A for accumulating the information A in the moving data file, and update information B in the moving data file accumulated while the subsystem B was the active system when the standby system was switched to the active system. When a message is received from the moving data reflection processing unit A that reflects the above to the data file A and the message distribution processing unit, the data corresponding to the message read from the data file A is added to the message. Subsystem B
When a message with data is received from the subsystem B, the data reference processing unit that reflects the data attached to the message in the data file A and then sends the message to the online processing unit A The subsystem B has a data file B for storing data for online processing, and when receiving a message from the message distribution processing unit, the subsystem B updates or refers to the data file B to process the message. When the data file B is updated, an online processing unit B that stores the update information B in the moving data file, and while the subsystem A is the active system when the standby system is switched to the active system. A moving data reflection processing section B for reflecting the update information A stored in the moving data file in the data file B to the data file B; When a message is received from the sorting processing unit, the data corresponding to the message read from the data file B is added to the message and sent to the subsystem A, and the message with data is sent from the subsystem A. When received, the data reference processing unit B sends the electronic message to the online processing unit B after reflecting the data attached to the electronic message in the data file B.

An eighth non-disruptive online service system of the present invention is the system of the seventh non-disruptive online service, wherein the electronic message distribution processing unit operates from the time when the standby system and the active system are switched to the active system. During the transition transition until the movement data reflection processing unit A or B of the subsystem becomes the reflection end of all the update information B or A in the movement data file to the data file A or B, the standby system The data reference processing unit A
Alternatively, it is characterized in that a message is sent to B, and if the switching is not in transition, the message is sent to the online processing unit A or B of the active system.

A ninth non-stop online service system of the present invention is the seventh or eighth non-stop online service system, wherein the mobile data file is:
The online processing unit A writes the update information A of the data file A, and the mobile data reflection processing unit B reads the mobile data file A and the update information B of the data file B is written by the online processing unit B. And a moving data file B read by the reflection processing unit A.

The first non-disruptive online service method of the present invention comprises providing an active data processing apparatus for executing online processing and a standby data processing apparatus for performing batch processing or maintenance work, and performing the data processing. There is a procedure for operating the apparatus by alternately switching between the active system and the standby system, and when receiving a telegram, a procedure for referring to or updating a data file provided in the data processing apparatus to process the telegram, and updating the data file. And a procedure for accumulating the update information in a common storage device accessible from both of the data processing devices, and the data accumulating by the data processing device that has become a standby system when the standby system is switched to the active system. The procedure for reflecting the update information in the data file of the active system, and the update information is copied to the data file of the active system from the time the system is switched. During the transition transition until the end, the data processing device that has become the standby system receives a message from the terminal device and reads the data corresponding to the received message from the data file that has become the standby system. It is added to the received message and sent to the data processing device that has become the active system, and the data processing device that has become the active system receives the message with the data and updates the data file that became the active system to the latest data. And a procedure for processing the electronic message in each of the data processing devices.

A second non-disruptive online service method of the present invention is to provide an active subsystem for executing online processing and a standby subsystem for executing batch processing or maintenance work on a data processing device. A procedure for operating the subsystem by alternately switching between the active system and the standby system, and when receiving a telegram, a procedure for processing or processing the telegram by referring to or updating the data file provided in the subsystem,
When the data file is updated, a procedure for accumulating the update information in a moving data file that is accessible from both of the subsystems, and the subsystem that becomes the standby system when the standby system is switched to the active system The procedure for reflecting the accumulated update information in the data file of the active system, and from the time the system is switched to the time when all the update information is completely reflected in the data file of the active system by the reflecting means. During the transition transition, the subsystem that has become the standby system receives a message from the terminal device, reads the data corresponding to the received message from the data file that has become the standby system, and adds it to the received message. And send it to the subsystem that became the active system, and the subsystem that became the active system receives the message with the above data and becomes the active system. And a procedure for processing of the message from the up to date data Airu to the respective subsystems.

The first recording medium of the present invention is provided with an active data processing device for executing online processing and a standby data processing device for performing batch processing or maintenance work.
A procedure for alternately switching the data processing device to an active system and a standby system to operate, a procedure for processing a data message by referring to or updating a data file provided in the data processing device when a data message is received, and a data file When updating, the update information is stored in a common storage device accessible from both of the data processing devices, and when the standby system is switched to the active system, the data processing device that became the standby system stores the updated information. A procedure for reflecting the update information in the data file of the active system, and a standby system during the transition from the time when the system is switched to the time when the update information is completely reflected in the data file of the active system. The data processing device receives a message from the terminal device, and reads the data corresponding to the received message from the data file that has become a standby system. It is added to the received message and sent to the data processing device that has become the active system, and the data processing device that has become the active system receives the message with the data and updates the data file that became the active system to the latest data. And a program for causing each of the data processing devices to execute the procedure for processing the message.

The second recording medium of the present invention comprises an active subsystem for executing online processing and a standby subsystem for executing batch processing or maintenance work provided on a data processing device. A procedure for alternately switching between the active system and the standby system, a procedure for processing a message by referring to or updating a data file provided in the subsystem when a message is received, and a procedure for updating the data file when it is updated A procedure for storing information in a moving data file that is accessible from both of the subsystems, and the update information accumulated by the subsystem that has become the standby system when the standby system is switched to the active system. The procedure for reflecting in the data file, and from the time the system is switched, all the above-mentioned update information is reflected in the above-mentioned data file of the current system by the reflecting means. During the transition transition until the end of reflection to the file, the subsystem that has become the standby system receives a message from the terminal device, and the data corresponding to the received message is received from the data file that is the standby system. It is read and added to the received message and sent to the subsystem that became the active system, and the subsystem that became the active system receives the message with the data and makes the data file that became the active system the latest data. And a program for causing the respective subsystems to execute the procedure for performing the processing of the electronic message.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a first embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram of a first embodiment of the present invention. The data processing devices 10 and 20, the message distribution device 30, and the terminal device 50 are connected by a network. The terminal device 50 is a terminal device connected for online processing, and in FIG.
Only one is shown, but usually multiple units are connected. Terminal device 5
0 transmits the electronic message of the online processing request, and the electronic message distribution device 30 receives the electronic message and distributes it to the data processing device 10 or the data processing device 20, and the online processing is executed by the data processing device 10 or the data processing device 20. . The data processing device 10 and the data processing device 20 are alternately switched between the active system and the standby system to execute online processing, batch processing, and maintenance work.

The data processing device 10 includes an online program 11 for performing online processing, a data file 12 for storing data, and a data file 22 that was the active system when the standby system was switched to the active system. The movement data reflection program 14 for making the same contents as the above, and from the time of switching from the standby system to the active system until the processing of the movement data reflection program 14 is completed and the data file 12 becomes the latest contents ( It includes a data reference program 13 for ensuring data consistency in online processing (during transition) and a batch / maintenance program 15 for executing batch processing and maintenance work in a standby system state.

The data processing device 20 includes an online program 21, a data file 22, a movement data reflection program 24, a data reference program 23, and a batch / maintenance program 25, which have the same name as the data processing device 10. Each has the same function.

The message distribution device 30 receives a message transmitted from the terminal device 50, distributes the message to the data processing device 10 or the data processing device 20, and outputs it, and a message distribution program 31 necessary for making this distribution determination. An operation mode storage unit 32 for storing an operation state for managing the operation state is included. The operating state includes information about which data processing device of the current active system is present, information about whether the switching is currently in transition, and the like.

Data processing device 10 and data processing device 2
0, the network X10 between the message distribution device 30
Although not shown in the figure, each data processing device has a communication means for controlling these communications, a processor and a memory for executing each program, and an auxiliary device such as a magnetic disk for storing each program and data. Includes storage means. Further, the data processing device 10 and the data processing device 20 are connected by X12, the data processing device 10 and the electronic message distribution device 30 are connected by X13, and the data processing device 20 and the electronic message distribution device 30 are connected. Are connected by X23. These are network X
10 may be used as a substitute, or one network such as X10 may be used for connection, as long as communication between the respective devices is possible.

The shared storage device 40 is the data processing device 10.
And a data processing device 20, which are accessed by both the data processing device 20 and the data processing device 10, and a moving data file 41 that stores and stores, as moving data, information obtained by updating the online data in accordance with the online processing performed when the data processing device 10 is in the active system; The mobile data file 42 stores and stores, as mobile data, information obtained by updating the online data in accordance with the online processing executed by the device 20 in the active system. The shared storage device 40 and the data processing device 10 are connected by X14, and the shared storage device 40 and the data processing device 20 are connected by X24.

Next, the operation of the embodiment of the present invention will be described with reference to the drawings. FIG. 2 is a block diagram showing an operational connection relationship between the respective components of the data processing devices 10 and 20 and the electronic message distribution device 30 of FIG. First, when a message from the online terminal device 50 is input to the message distributing device 30, the message distributing program 31 checks the contents of the operation mode storage unit 32 and distributes the message as follows.

FIG. 3 is a flow chart showing the operation of the electronic message distribution program 31. The electronic message distribution program 31 refers to the operation mode storage unit 32 in S601, and checks in S602 whether or not the switching is currently in transition. If the switching is not in transition, the data processor of the active system is further checked (S603).

If the current active system is the data processing device 10, a message is sent to the online program 11 (S604).
If the current active system is not the data processing device 10, a message is sent to the online program 21 (S605). That is,
If the transition is not in progress, a message will be sent to the online program of the data processing device currently being processed online. Normally, the system has been operating in this state for many hours.

On the other hand, when the switching is in transition, it is checked in S606 which data processing device has become the active system. If the data processing device 20 is in the transition transition when it is switched to the active system, a message is sent to the data reference program 13 (S607), and in the opposite case, a message is sent to the data reference program 23 (S608). That is, a message is sent to the data processing device that has been switched from the active system to the standby system.

As will be described later, since the data file of the data processing device which has become the standby system is in the latest state immediately after the switching, the data corresponding to the message received from this data file is extracted and added to the message. By sending the data to the data processing device that has become the active system, the data processing device that has become the active system can execute the processing of the message without waiting for the completion of the migration data reflection program.

As described above, since four types of telegrams are distributed depending on the state, the subsequent operation will be described separately for each case. (1) Operation when the data processing device 10 is in the active system during no switching transition When the electronic message distribution program 31 sends an electronic message to the online program 11, the online program 11 receives the electronic message and operates as shown in the flowchart of FIG. To do.

Data file 1 for received message
2 is referred to or updated, a predetermined process is executed, and the result is returned to the terminal device 50 that issued the electronic message (S611).
If the data file 12 has not been updated in the processing of S611, this ends the processing (S612), but if the update has been executed, the update information of the data file 12 is transferred as shared data in the shared storage device 40 in the step of S613.
Write movement data is accumulated in the movement data file 41.

(2) The data processing device 2 is not in the switching transition.
Operation when 0 is the active system When the electronic message distribution program 31 sends an electronic message to the online program 21, the online program 21 receives the electronic message and operates as in the flowchart shown in FIG. 4 like the online program 11 in (1). To do.

The online program 21 refers to or updates the data file 22 for the received electronic message, executes a predetermined process, and returns the result to the terminal device 50 that issued the electronic message (S611). If the data file 12 has not been updated in the processing of S611, this ends the processing (S612), but if the update has been executed, S6
In step 13, the update information of the data file 22 is written as move data in the move data file 42 of the shared storage device 40 and the move data is accumulated.

(3) Operation when the data processing device 20 is the active system during the switching transition In the state of item (1), switching of the system is instructed and online processing is performed from the data processing device 10 to the data processing device 2.
When it is switched to 0, the transition transition of the operation mode storage unit 32 becomes valid, and the movement data reflection program 24 of the data processing device 20 is activated. It should be noted that the movement data reflection program 24 is not limited to be activated when the transition is in transition, and can be activated at any time as soon as the preparation for activation is completed even before the transition is in transition.

FIG. 5 is a flow chart showing the operation of the movement data reflection program 24. The movement data reflection program 24 reads the movement data which is the update information of the data file 12 written by the online program 11 in the item (1) from the movement data file 41 (S).
621). The message-processed flag, which is the attribute of the data in the data file 22 corresponding to the read movement data, is read (S622). As will be described later, the message processed flag indicates that the message corresponding to the same data has already been processed during the switching transition and the data in the data file 22 is the latest.

It is judged whether or not the read message-processed flag is "0" (S623), and only when it is "0", the data in the data file 22 is updated with the moving data read from the moving data file 41 to obtain the latest data. (S62
4). This is executed for all the movement data in the movement data file 41, and when the processing of all the data is completed (S6
25), invalid during switching transition of the operation mode storage unit 32 =
It is set to “0” (S626).

The movement data reflection program 24 is completed as described above, and thereafter the data processing apparatus 10 becomes a standby system.
No longer participates in online processing, and batch processing and maintenance work are executed. Further, the message processed flag associated with each data needs to be set to "0" after the transition of the switching and before the switching to the active system again.
It is not limited whether it is executed during operation as an active system or when it is in a standby system.

Next, during the switching mode, the terminal device 5
The operation when a message is received from 0 will be described. FIG. 6 is a flowchart showing the operation of each data processing device. First, the electronic message distribution program 31 transmits the received electronic message to the data reference program 13 of the data processing device 10.
To (S701). The data reference program 13 receives this message (S702), reads the data corresponding to this message from the data file 12, adds it to the message, and sends it to the data reference program 23 of the data processing device 20 (S703). The data added to the message here is the latest data at the time of switching, and if the message accompanied by updating to the same data is not processed after switching, it is in the latest state at the time of receiving the message. .

When the data reference program 23 of the data processing device 20 receives the data added to the message,
It is determined whether this data has been reflected in the data file 22 (S704). For this purpose, the data file 22
The data corresponding to the telegram includes a telegram processed flag indicating that the telegram has already been processed during the switching transition.
In the determination of S704, if this flag is "1", it is determined that the message has been processed and the data in the data file 22 is the latest, and if "0", the data in the data file 22 is the latest according to the received data. It is judged that it is necessary to update the data of.

When the message-processed flag is "0", the data reference program 23 updates the corresponding data in the data file 22 with the data added to the received message to bring it to the latest state (S705), and then "1". In the case of, the update process of S705 is skipped and the process proceeds to S706. The data reference program 23 deletes the additional data from the received electronic message and sends it to the online program 21 (S706), and thereafter, the online program 21 operates and processes the electronic message in the same manner as item (2) (S707). At this time, if there is an update to the data file 22, the update information is accumulated in the move data file 42 as move data in preparation for the case where the data processor 10 is switched to the active system next time.

When the system switching is performed in this way, even if the data in the data file 22 of the system that has been switched and becomes the active system is not the latest, the latest data is read from the data file 12 that becomes the standby system. Since the data file 22 of the active system is updated to be processed by the online program 21, it is possible to receive and process the message immediately after switching the system.

(4) Operation when the data processing device 10 is the active system during the switching transition The operation in this case is the same if the data processing device 20 and the data processing device 10 are replaced in the operation of item (3). Therefore, the description is omitted. The data processing device 1
The respective constituent elements included in 0 and 20 are similarly read, and the moving data file 41 is replaced with the moving data file 42.

As described above, when the subsequent message is processed for the data which has already been processed by the message during the switching transition and the data is updated, the message processed flag is added to each data so that the processing result of the previous message is not lost. Although it has been described that it is attached and controlled, another method may be used. For example, the data is added by reading the data in the standby system during the transition transition, adding this to the message and sending it to the active system, and then executing only the data file update process accompanying the message processing in the standby system as well. Since the data is always in the latest state, the active system may unconditionally update the data file with the additional data, so that the message processing completed flag is unnecessary. However, in this method, since the data file update processing is executed in both systems during the switching transition, the load during the switching transition becomes large, and
It becomes difficult to control the stationary point at the time of batch processing.

Next, the operation of the data processing device serving as the standby system will be briefly described. Batch / Maintenance Program 1
Reference numeral 5 or 25 is a set of programs including batch processing programs and maintenance programs. Batch / maintenance program 1 at the time of switching to the standby system
Batch processing and maintenance work are executed by selecting and starting a program in 5 or 25. However, in order to give priority to the online processing, it is desirable to execute after the state during the switching transition is canceled as much as possible.

Next, a second embodiment of the present invention will be described in detail with reference to the drawings. FIG. 7 is a block diagram of the second embodiment. In FIG. 7, the data processing device 1 of FIG.
0, 20, message distribution device 30, and shared storage device 4
0 is implemented in one data processing device 80.

A subsystem 81 corresponds to the data processing apparatus 10 of FIG. 1, and the online program 11, the data file 12, the movement data reflection program 14, and the data reference program which are the constituent elements in the subsystem 81. 13 and the batch / maintenance program 15 have the same functions as the components of the same name of the data processing device 10,
The same number is given. Similarly, it is the subsystem 82 that corresponds to the data processing device 20 of FIG. 1, and the online program 21 that is a component in the subsystem 82.
The data file 22, the movement data reflection program 24, the data reference program 23, and the batch / maintenance program 25 also have the same functions as the components of the same name of the data processing device 20.

A subsystem 83 corresponds to the electronic message distributing device 30 of FIG. 1, and the electronic message distributing program 31 and the operation mode storage unit 32, which are the constituent elements in the subsystem 83, have the same name as the constituent elements of the electronic message distributing device 30. Has the same function as. The shared storage device 40 of FIG. 1 is not necessary in the configuration of FIG.
1, 42 are included in the data processing device 80, but have the same function.

Although each data file and each program are installed in the same data processing device 80, they are independent for each subsystem. Therefore, the file capacity of the data processing device 80 is about twice as large as that of the data processing device 10 or 20. However, each program may be shared between the subsystems 81 and 82 depending on conditions.

A relational diagram among the respective constituent elements is as shown in FIG. 2 similarly to the configuration of FIG. Therefore, since the function, operation, and configuration of each constituent element are the same, the operation is the same as that of the first embodiment, and thus detailed description will be omitted. However,
Even when each component communicates with the component of another subsystem, X1 in FIG.
No communication line as hardware such as 2, X13, X23 is required.

In the subsystem which has become the standby system, the batch / maintenance program 15 or 2 is used as in the first embodiment.
Batch processing and maintenance work are executed by selecting and starting the program in 5. However, since the data reference program 13 or 23 is operating during the transition transition, it is better to avoid the transition transition and perform batch processing and maintenance work in consideration of the load.

In the second embodiment, originally, only the subsystem 81 excluding the data reference program 13 and the movement data reflection program 14 is installed in the data processing device 80,
In order to enable the online processing and the batch processing to be executed simultaneously for a system in which the online processing and the batch processing are executed at different time zones, the data processing device 80 has subsystems 82, 83, and a mobile unit. Data files 41 and 42 are added, and subsystem 81
In this embodiment, a data reference program 13 and a movement data reflection program 14 are added, and a comparatively simple change is added to the conventional program.

Therefore, as the hardware, in order to increase the file capacity, an operation mode in which online processing and batch processing are simultaneously executed can be realized by adding a storage device as needed. For this reason, such a configuration is effective even in the evaluation stage of the process of making a full-scale transition to the first embodiment, and as a system in the case where the reliability as in the first embodiment is not required. It is economically effective in that it requires only one data processing device.

[0053]

The first effect is that the online data of the system switched from the standby system to the active system is accumulated when the active system and the standby system are switched to the two subsystems or the data processing device. That is, the online processing can be started without waiting for the completion of the processing for updating according to the update information.

The second effect is that, in the second embodiment, one data processing device uses the two subsystems while alternately switching them, so that the program is not remodeled significantly, and It is economically possible to perform non-stop operation of online processing in parallel with batch processing and maintenance.

[Brief description of drawings]

FIG. 1 is a block diagram of a first embodiment.

FIG. 2 is a block diagram showing an operational connection relationship between respective constituent elements of the first or second embodiment.

FIG. 3 is a flowchart showing the operation of a message distribution program 31.

FIG. 4 is a flowchart showing the operation of the online program 11 or 21.

FIG. 5 is a flow chart showing an operation of a movement data reflection program 14 or 24.

FIG. 6 is a flowchart showing an operation in each data processing device when a message is received during a switching transition.

FIG. 7 is a block diagram of a second embodiment.

[Explanation of symbols]

10 Data processing device 11 online programs 12 data files 13 Data reference program 14 Movement data reflection program 15 Batch / Maintenance Program 20 Data processing device 21 Online Program 22 data files 23 Data Reference Program 24 Movement data reflection program 25 Batch / Maintenance Program 30 Telegram distribution device 31 Telegram distribution program 32 Working mode storage 40 shared storage 41 Move data file 42 Movement data file 50 terminal equipment 80 data processor 81 subsystem 82 subsystem 83 subsystems

Front page continuation (58) Fields surveyed (Int.Cl. ⁷ , DB name) G06F 11/16-11/20 G06F 15/16-15/177 G06F 12/00 G06F 15/00 JST file (JOIS)

Claims (13)

(57) [Claims] 1. A data processing device of an active system for executing online processing and a data processing device of a standby system for performing batch processing or maintenance work are provided, and the data processing device is alternately switched between the active system and the standby system. In the system of the non-disruptive online service to be operated, the active and standby data processing devices each have a data file for storing data handled in online processing,
Update information storage means for storing update information when the data file is updated when a message sent from the terminal device is processed, and the data that becomes the standby system when the standby system is switched to the active system And a reflecting means for reflecting the update information of the update information storage means stored in the processing device in the data file, and from the time when the system is switched, all of the update information is stored in the data of the active system by the reflecting means. During the transition transition until the end of reflection to the file, the data processing device that has become a standby system receives a message from the terminal device, and the data file that has become a standby system for the data corresponding to the received message. And sends it to the received electronic message and sends it to the data processing device that has become the active system, and the data processing device that has become the active system receives the electronic message with the data and sends it to the active system. The non-stop online service system is characterized in that the message is processed after being reflected in the data file. 2. A data processing device A and a data processing device B are provided, one of which executes online processing as an active system,
The other performs batch processing or maintenance work as a standby system,
In a non-stop online service system in which an active system and a standby system are alternately switched and operated, a message distribution device having a message distribution processing unit that receives a message for online processing and controls a destination of the message, and the data processing A shared storage device accessible from both the devices A and B, wherein the data processing device A is a data file A for storing data for online processing.
When a message is received from the message distribution processing unit, the data file A is updated or referred to to process the message, and when the data file A is updated, the update information A is stored in the shared storage device. On-line processing unit A and movement for reflecting the update information B in the shared storage device accumulated while the data processing device B was the active system when the standby system was switched to the active system to the data file A When a message is received from the data reflection processing unit A and the message distribution processing unit, the data corresponding to the message read from the data file A is added to the message and sent to the data processing device B. When a message with data is received from the data processing device B, the data attached to the message is reflected in the data file A and then And a data reference processing unit A to send the statement to the online processing unit A, the data processing device B, the data file B for storing data of line processing
When a message is received from the message distribution processing unit, the data file B is updated or referred to to process the message, and when the data file B is updated, the update information B is stored in the shared storage device. An online processing unit B and a movement for reflecting the update information A in the shared storage device, which was accumulated while the data processing device A was the active system when the standby system was switched to the active system, to the data file B. When a message is received from the data reflection processing unit B and the message distribution processing unit, the data corresponding to the message read from the data file B is added to the message and sent to the data processing device A. When a message with data is received from the data processing device A, the data attached to the message is reflected in the data file B, and then the The system of non-stop online service, wherein a statement having a data reference processing unit B sent to the online processing unit B. 3. In the electronic message distributing device, from the time when the standby system and the active system are switched, the move data reflection processing unit A or B of the active data processing device updates all the data in the shared storage device. During the switching transition until the end of reflecting the information B or A in the data file A or B, a message is sent to the data reference processing unit A or B that has become the standby system, and if it is not in the switching transition, it is used. The non-stop online service system according to claim 2, wherein a message is sent to the online processing unit A or B of the system. 4. In the shared storage device, the online processing unit A writes the update information A of the data file A and the move data reflection processing unit B reads the move data file A, and the update information B of the data file B. Is written by the online processing unit B, and the moving data reflection processing unit A
4. The non-stop online service system according to claim 2, further comprising a moving data file B read by 5. The online processing message is sent from an online terminal device or another data processing device connected to the message distributing device, the data processing device A, and the data processing device B by a network or a communication line. The
The non-stop online service system according to claim 2, 3 or 4, wherein the electronic message distributing device receives the message and distributes it to the data processing device A or the data processing device B. 6. A data processing device is provided with a subsystem of an active system for executing online processing and a subsystem of a standby system for performing batch processing or maintenance work, and the subsystems are alternately arranged in the active system and the standby system. In a non-stop online service system that operates by switching, the active and standby subsystems each have a data file that stores the data handled in online processing and the data when the message sent from the terminal device is processed. The update information storage means for storing update information when the file is updated, and the update information of the update information storage means stored by the subsystem that became the standby system when the standby system is switched to the active system A reflection means for reflecting the data file is provided, and all the update information is updated by the reflection means from the time the system is switched. During the transition transition until the end of the reflection in the data file of the active system, the subsystem that has become the standby system receives a message from the terminal device and changes the data corresponding to the received message to the standby system. It is read from the data file and added to the received message and sent to the subsystem that became the active system, and the subsystem that became the active system receives the message with the data and writes it to the data file that became the active system. A system of non-stop online service, characterized by performing the processing of the electronic message after the reflection. 7. A subsystem A and a subsystem B are provided on a data processing device, one of which executes online processing as an active system, and the other of which performs batch processing or maintenance work as a standby system, and an active system and a standby system. In a non-stop online service system in which systems are alternately switched and operated, a subsystem C having a message distribution processing unit that receives a message for online processing and controls a destination of the message, the subsystem A, and the subsystem And a moving data file accessed from the system B, wherein the subsystem A is a data file A for storing data of online processing.
When a message is received from the message distribution processing unit, the data file A is updated or referenced to process the message, and when the data file A is updated, the update information A is stored in the move data file. Online processing unit A and movement data for reflecting the update information B in the movement data file accumulated while the subsystem B was the active system when the standby system was switched to the active system to the data file A When a message is received from the reflection processing unit A and the message distribution processing unit, the data corresponding to the message read from the data file A is added to the message and sent to the subsystem B. When a message with data is received from B, is the data attached to the message reflected in the data file A? And a data reference processing unit A to send the message to the online processing unit A, the sub-system B, the data file B for storing data of line processing
When a message is received from the message distribution processing unit, the data file B is updated or referred to to process the message, and when the data file B is updated, the update information B is stored in the move data file. Online processing unit B and movement data for reflecting the update information A in the movement data file accumulated while the subsystem A was the active system when the standby system was switched to the active system to the data file B. When a message is received from the reflection processing unit B and the message distribution processing unit, data corresponding to the message read from the data file B is added to the message and sent to the subsystem A. When a message with data is received from A, is the data attached to the message reflected in the data file B? The system of non-stop online service, characterized in that the message had a data reference processing unit B sent to the online processing unit B. 8. The electronic data distribution processing unit, when the standby system and the active system are switched, the migration data reflection processing unit A or B of the subsystem which has become the active system updates all the data in the migration data file. During the switching transition until the end of reflecting the information B or A in the data file A or B, a message is sent to the data reference processing unit A or B that has become the standby system, and if it is not in the switching transition, it is used. 8. The non-stop online service system according to claim 7, wherein a message is sent to the online processing unit A or B of the system. 9. In the move data file, update information A of the data file A is written by the online processing unit A and read by the move data reflection processing unit B, and update information B of the data file B. 9. The non-stop online service system according to claim 7, further comprising: a moving data file B written by the online processing unit B and read by the moving data reflection processing unit A. 10. An active data processing apparatus for executing online processing and a standby data processing apparatus for executing batch processing or maintenance work are provided, and the data processing apparatus is alternately switched between the active system and the standby system. In the method of non-stop online service to operate, each of the data processing devices, when receiving a message, refers to or updates a data file provided in the data processing device to process the message, and when the data file is updated, the The update information is stored in a common storage device accessible from both of the data processing devices, and the update information accumulated by the data processing device that becomes the standby system when the standby system is switched to the active system is stored in the active system. It is reflected in the data file, and when the system is switched, the update information is reflected in the data file of the active system. During the transition transition up to the point in time, the data processing device that has become the standby system receives a message from the terminal device, reads the data corresponding to the received message from the data file that has become the standby system, and receives the data. Sent to the data processor that became the active system, and the data processor that became the active system receives the message with the data and reflects it in the data file that became the active system, and then A non-disruptive online service method characterized by performing processing. 11. A data processing apparatus is provided with a subsystem of an active system for executing online processing and a subsystem of a standby system for performing batch processing or maintenance work, and the subsystems are alternately arranged in the active system and the standby system. In the method of the non-stop online service of switching and operating, each of the subsystems receives or receives a telegram to refer to or update a data file provided in the subsystem to process the telegram, and when the data file is updated, The update information is stored in a moving data file that can be accessed from both of the subsystems, and the update information accumulated by the subsystem that becomes the standby system when the standby system is switched to the active system is stored in the data of the active system. After reflecting the file in the file and switching the system, all the update information is updated by the reflecting means in the active system. During the switching transition until the end of reflection in the data file, the subsystem that has become the standby system receives a message from the terminal device, and the data corresponding to the received message is the data that becomes the standby system. It is read from a file and added to the received message and sent to the subsystem that became the active system, and the subsystem that became the active system receives the message with the data and reflects it in the data file that became the active system. A method of non-stop online service, characterized in that the above-mentioned message is processed. 12. A data processing device of an active system for executing online processing and a data processing device of a standby system for performing batch processing or maintenance work are provided, and the data processing device is alternately switched between the active system and the standby system. A procedure for operating, a procedure for processing a message by referring to or updating a data file provided in the data processing device when receiving a message, and updating information when updating the data file from both the data processing device. A procedure of accumulating in an accessible common storage device, and a procedure of reflecting the update information accumulated by the data processing device which has become a standby system when the standby system is switched to the active system in the data file of the active system During the switching transition from the time when the system is switched to the time when the update information is completely reflected in the data file of the active system, the system becomes the standby system. Data processing in which the data processing device receives a message from the terminal device, reads data corresponding to the received message from the data file that has become the standby system, and adds the data to the received message to become the active system The data processing device that has been sent to the device, and the active data processing device receives the electronic message with the data and reflects it in the active data file and then processes the electronic message to each of the data processing devices. A recording medium recording a program to be executed. 13. A data processing apparatus is provided with a subsystem of an active system for executing online processing and a subsystem of a standby system for performing batch processing or maintenance work, and the subsystems are alternately arranged in the active system and the standby system. A procedure of switching and operating, a procedure of processing a message by referring to or updating a data file provided in the subsystem when receiving a message, and updating information when updating the data file from both of the subsystems. A procedure of accumulating in an accessible mobile data file, and a procedure of reflecting the update information accumulated by the subsystem that became the standby system when the standby system is switched to the active system in the data file of the active system, When all the update information has been reflected in the data file of the active system by the reflecting means from the time when the system is switched During the transition transition up to, the subsystem that has become the standby system receives a message from the terminal device, reads the data corresponding to the received message from the data file that has become the standby system, and receives the message. To the subsystem that became the active system, and the subsystem that became the active system receives the message with the data and reflects it in the data file that became the active system before processing the message. A recording medium in which a program for causing each of the subsystems to execute is recorded.