JPH07334472A - Computer-to-computer automatic data transfer processing method - Google Patents

Abstract

(57) [Abstract] [Purpose] Regarding the inter-computer automatic data transfer processing method in the data link processing between multiple computers, the transfer operation table or the result thereof is centrally managed using the transfer management table, and the transfer permission / inhibition is recognized. The purpose of the present invention is to reduce the burden on the operator and to provide a general-purpose transfer means by automatically starting processing, inspecting after processing, and repairing in case of abnormality by independent processing means. [Structure] The automatic recognition processing means 11 includes a transfer management table 5
If there is transmission data that has already been created, check whether transmission is possible. The automatic start processing means 11 starts transmission when there is transmission data that can be transmitted. Automatic inspection / repair processing means
14 checks the integrity of the transmitted data that has been transmitted, and retransmits it if there is an abnormality. Each of these processing means 11, 12, 14
Performs the processing asynchronously by monitoring the transfer management table 5 at a predetermined cycle and referring / updating the status indicating the operating state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooperative processing system between a plurality of computers, and more particularly to an automatic computer-to-computer data transfer processing system capable of automatically transferring a file to a target computer. It is a thing.

[0002]

2. Description of the Related Art In a conventional data transfer method between a plurality of computers, the presence / absence of transfer data, the operation procedure of the transfer process, the state at the time of transfer completion, the consistency of the transfer data, etc., are determined every time a cooperative process occurs. The operator checked each and operated the computer etc.

[0003]

In the above conventional method,
The process from the request generation to the execution of the cooperation process, for example, the presence or absence of transfer data, the transfer process operation procedure, the state at the time of transfer completion, and the consistency of the transfer data must be monitored by the operator, which imposes a burden on the operator. It was great. Also, since the operator must intervene every time when the cooperative processing is required, there is a disadvantage that it takes time from the request generation to the execution of the cooperative processing, and further the operation may be erroneous.
In addition, there is a drawback that the operator must perform the same processing operation again when the cooperative processing is not normally completed.

In order to automate the cooperative processing, a processing procedure according to the type of data to be individually transferred in an application program or the like is described in the program, and the program that created the transfer data performs its automatic transmission. However, there is a problem that the processing load of individual application programs and the like becomes heavy, and the flexibility is lacking when the number of data (transfer files) to be transferred or the number of transfer destinations increases or decreases.

The present invention solves the above problems, and automatically recognizes whether or not transfer is possible in data linkage processing, starts processing, inspects after processing, and repairs in the case of abnormality by centrally managing by state management, An object of the present invention is to provide an expandable and flexible data transfer means that can reduce the burden on the operator and can easily handle the increase in the number of transfer files.

[0006]

FIG. 1 is a block diagram showing the principle of the present invention. In the figure, reference numerals 1 and 2 denote computers for data linkage processing including a CPU and memory, 3 and 4 denote storage devices, 5 and 6 denote transfer management tables, 7 and 8 denote display devices, and 11 denotes automatic recognition processing means. , 12 and 13 are automatic start processing means, and 14 and 15 are automatic inspection / repair processing means.

In FIG. 1, a computer 1 and a computer 2 are connected via a communication interface and a communication line. In the following description, data transfer is assumed to be performed from the computer 1 to the computer 2.

Transmission data is stored in the storage device 3, and reception data is stored in the storage device 4. The transfer management table 5 is a table for storing data given in advance or data set by each processing means described below, which is necessary for transmission processing. The transfer management table 6 is a table that stores data necessary for reception processing. In particular,
The transfer management tables 5 and 6 include a host computer
Stores status information (hereinafter referred to as status) indicating the operating status or the completion status of transfer processing between servers.

The automatic recognition processing means 11 periodically monitors the transfer management table 5 at predetermined time intervals, and the storage device 3
When the information that the transmission data has been created is written in, it is confirmed whether transmission is possible to the computer 2 that is the server, and the result is written in the transfer management table 5.

The automatic start-up processing means 12 periodically monitors the transfer management table 5 at predetermined time intervals, and when it detects that the transmittable information is written in the transfer management table 5, the computer as a server. 2, the transmission of the transmission data existing in the storage device 3 is started and the state information until the end is written in the transfer management table 5.

When receiving the data transmitted from the computer 1 in the storage device 4, the automatic start processing means 13 in the computer 2 writes the status information from the start to the end in the transfer management table 6.

The automatic inspection / repair processing means 14 periodically monitors the transfer management table 5 at a predetermined time interval, and when it detects that the transmission completion information is written in the transfer management table 5, the transmission completion is confirmed. The computer 2 is notified of the completion information, and the consistency of the transfer data is checked by the response (state information) from the computer 2 to the completion information. As a result, if the status is normal, the notified status is written in the transfer management table 5, and if the transfer data is inconsistent and abnormal, the status for retransmission is written in the transfer management table 5.

When the automatic inspection / repair processing means 15 in the computer 2 receives the completion information from the computer 1, it checks the consistency with the received data and writes the result in the transfer management table 6 and the computer. Notify 1.

The display devices 7 and 8 monitor the data transfer state between the computer 1 and the computer 2, respectively, so as to monitor the data transfer state between the computer 1 and the computer 2, the transfer management tables 5 and 6 are provided in response to the operator's request.
Display information for.

[0015]

According to the automatic data transfer processing method between computers of the present invention, the operation information and the result of each processing means are centrally managed in the transfer management table, and each processing means is controlled based on the information. . Further, each of the processing means operates asynchronously based on the status information of the transfer management table. Therefore, it is possible to independently and efficiently perform the recognition of transferability, the activation of the process for transmission, the inspection after the process, and the repair when an abnormality occurs, and the burden on the operator is reduced.

Further, since automatic data transfer can be realized only by registering information such as transfer files and transfer destinations in the transfer management table, there is versatility, expandability, flexibility, and applications that require data linkage processing. Productivity of programs is improved.

By providing means for displaying the contents of the transfer management table, it is possible to easily deal with the display request of the data transfer status from the operator.

[0018]

An embodiment of the present invention will be described below with reference to the drawings. In this embodiment, the computer 1 on the transmitting side shown in FIG.
Is called a host computer, and the receiving computer 2 is called a server. It is assumed that there are multiple servers.

FIG. 2 is a structural example of a transfer management table, FIG.
Shows an example of items in the transfer management table. The transfer management table 5 of this embodiment is the shared DASD of the computer 1.
It is provided as a file having a structure as shown in FIG. The file organization of the transfer management table 5 is relative organization, and the first record with a relative number of zero (ZERO) is
This is the control record 16. After that, the data record 17 for each transmission file and transfer destination server follows. Each data record 17 is arranged in the order of the transmission file number,
Furthermore, they are arranged in order of server number.

A serial number from 1 is added to the file number for each transmission file name, and a serial number from 1 is added to the transfer destination server for management. . When retrieving the record of the transfer management table 5, the relative number calculated by the following formula: relative number = ((file number-1) * number of servers) + server number is used.

The control record 16 consists of items as shown in FIG. 3 (A), for example. The number of servers is one computer
The total number of servers to which files connected to are to be transferred. The number of transmission files is the total number of files to be transmitted. The error setting interval is the monitoring time (minutes) for determining whether a timeout error has occurred. The error transmission time is a transmission time (minute) per 1000 predetermined transmission records. The status clear time is a time interval (minute) for clearing the status in the data record 17 from the status of “notified” to the status of “not created”.

The data record 17 is, for example, as shown in FIG.
It consists of items as shown in. In each item shown in FIG. 3B, the invalid display indicates whether or not the contents of this record are valid. When it is "*", it is invalid, and in other cases, it is valid. The send file name is the name of the file transferred to the server. The transmission file number is an identification number that is sequentially given to the transmission file.
The server name is the name of the transfer destination server. The server number is a serial number assigned to each server. The received file name is the name of the file that stores the data received at the transfer destination server. The number of records is the number of records to send. The transmission start date / time and the transmission end date / time are the transmission start and transmission end date and time, for example, the first 6 digits are the date, and the remaining 6 digits are the time. (Hours, minutes,
Seconds). The number of retries indicates how many times the retransmission is repeated when the transfer results are inconsistent. The processing mode indicates a mode that determines the transfer method at the time of transfer, and includes a rewrite mode for transmitting all records and an additional mode for transmitting only updated records. The status is status information indicating a processing operation and a processing result of each processing unit as described later. The error code is information indicating the type of error when an error occurs.

As the status, for example, as shown in FIG. 3C, there are uncreated = 0, created = 1, transmittable = 2, transmitting = 3, transmitted = 4, notified = 9, etc. “Not created” is a status indicating that the send file (send data) has not been created yet. “Created” is a status indicating that the transmission file has been created.
“Sendable” is a status indicating that transmission is possible as a result of determining whether transmission is possible from the host computer side to the transfer destination server. "sending"
Is a status indicating that data is being transmitted from the host computer to the server. "Sent" means
This is a status indicating that the data transmission from the host computer to the server is completed. “Notified” is a status indicating that the transmission completion information is sent from the host computer to the server and the reply is normal.

The transfer management table 5 shown in FIGS. 2 and 3 is a file held by the host computer on the transmission side, but the transfer management table 6 of the server on the reception side.
Is similarly configured. However, as the status, for example, the status of “receiving” indicating that data is being received on the server side, the consistency information between the completion information sent from the host computer and the received data on the server side is determined, and the result is Status of "reception normal" indicating normal, status of "reception abnormal" indicating abnormal as a result of judging the consistency between the completion information sent from the host computer and the received data on the server side , There is a "notified" status indicating that the server has notified the host computer of the normal status when the status is "reception normal".

In the case of the data record 17 shown in FIG. 3B, the invalid display is not "*", so the record is valid. In this data record 17, the transmission file name is "SE
NDFILE "with the transmission file number" 001 ", the server name" Server 2 "and the server number" 020 "
It indicates that it is to be sent to the server. The file name at the time of reception is "RECVFILE". In this transfer, the number of records to be transferred is “1000” and the number of retries is “2”. The processing mode is "0", and the rewrite mode for transferring all cases is selected. Here, the transmission has already been performed, and the transfer is started from "09:55:30, May 10, 1994", and "May 10, 1994, 10: 1: 20".
Indicates that the transfer has been completed. The transfer ended normally, the status is "notified (= 9)", and the error code is "0".

As described above, the processing operation state or the result during the data transfer processing is managed as the status in the transfer management table. By displaying the information on the display device, it is easy for the operator. It is possible to grasp the processing state.

Next, the processing operation of each processing means in the embodiment will be described with reference to FIGS. FIG. 4 shows the automatic recognition processing means 1 of the host computer in the embodiment of the present invention.
1, the processing flow of the automatic start processing means 12 of the host computer in the embodiment of the present invention, FIG. 6 is the processing flow of the automatic inspection / repair processing means 14 of the host computer in the embodiment of the present invention, FIG. 7 is a processing flow of the automatic start processing means 13 of the server in the embodiment of the present invention, FIG. 8 is a processing flow of the automatic inspection / repair processing means 15 of the server in the embodiment of the present invention, and FIG. 9 is in the embodiment of the present invention. The flow of overall control is shown. 4 to 9, the same processing steps are designated by the same reference numerals.

As shown in FIGS. 4 and 9, when the automatic recognition processing means 11 is started at a predetermined cycle by a timer or the like, the status of each data record in the transfer management table 5 is checked in step S1. Step S
In 2, if there is a data record whose status in the transfer management table 5 is "created", it is determined whether the data record can be transmitted to the server. Step S3
When the transmission with the server is possible, the status of the transfer management table 5 is updated to "transmittable". The above process is repeated at predetermined time intervals.

As shown in FIGS. 5 and 9, when the automatic start processing means 12 is started at a predetermined cycle by a timer or the like, it checks the status of each data record in the transfer management table 5 in step S11. In step S12, if there is a data record whose status in the transfer management table 5 is "transmittable", the data is transmitted to the server. In step S13, the status of the corresponding data record in the transfer management table 5 is set to "transmitting" during data transmission, and is updated to "transmitted" when the data transmission is completed. The above process is repeated at predetermined time intervals.

As shown in FIGS. 6 and 9, automatic inspection /
When the restoration processing means 14 is activated by a timer or the like in a predetermined cycle, the restoration processing means 14 checks the status of each data record in the transfer management table 5 in step S21. In step S22, if there is a data record whose status in the transfer management table 5 is “transmitted”, the server is notified of completion information including information that can be used for checking consistency such as the number of transmitted records. In step S23, a response (status) to the completion information is received from the server. In step S24,
If the response (status) is "reception is normal", the status of the corresponding data record in the transfer management table 5 is updated to "notified", and if it is "reception abnormal", it is updated to "created". The above process is repeated at predetermined time intervals.

As shown in FIGS. 7 and 9, the automatic start processing means 13 receives the data sent from the host computer in step S31. Step S32
At, during data reception, the status of the corresponding data record in the transfer management table 6 is updated to "receiving".

As shown in FIGS. 8 and 9, the automatic inspection / repair processing means 15 of the server executes the step S41.
Receive the completion information sent from the host computer. Next, in step S42, the completion information such as the number of transmitted records is compared with the information of the actual received data, and if they match, the status of the corresponding data record in the transfer management table 6 is updated to "reception normal", and they do not match. If so, it is updated to "reception error". In step S43,
The status of the corresponding data record in the transfer management table 6 is sent to the host computer as a reply to the completion information. In step S44, if the status of the transfer management table 6 is "normal reception", the status of the data record is updated to "notified".
After that, in step S45, if the status of the transfer management table 6 is "notified", the processing such as an application program that uses the data of the received file is started.

FIG. 10 is a diagram showing an operational flow through the entire processing of the present invention. In step S51 of FIG. 10, when the application program of the host computer creates transmission data, data transfer is performed as follows.

The program that created the transmission data updates the status of the transfer management table 5 from "not created" to "created" in step S52. In step S53, the automatic recognition processing means 11 determines whether the transmission is possible. If the transmission is possible, the status of the transfer management table 5 is updated to "transmittable" in step S54. For example, wait for the next activation trigger and check the status again.

The automatic start processing means 12 has step S55.
In step S56, the data of the file that can be transmitted is transmitted to the server, and the status of the transfer management table 5 is updated to "transmitting" in step S56.

The automatic start processing means 13 of the server receives the data from the computer in step S57,
In step S58, the status of the transfer management table 6 on the server side is updated to "receiving".

The automatic start processing means 12 on the host computer side judges in step S59 whether or not the transmission is completed. If the transmission is completed, step S60.
At, the status of the transfer management table 5 is updated to "transmitted".

The automatic inspection / repair processing means 14 notifies the server of completion information regarding the data which has been "transmitted" in step S61. Upon receiving the completion information from the host computer in step S62, the automatic inspection / repair processing means 15 on the server side checks the consistency between the data received in step S63 and the completion information. If the received data and the completion information match, step S
At 64, the status of the transfer management table 6 is updated to "normal reception". If the received data and the completion information do not match, the status of the transfer management table 6 is updated to "reception abnormal" in step S65. Then, in step S66, step S64 or step S64
The status updated in 65 is notified to the host computer as a response.

The automatic inspection / repair processing means 14 on the host computer side receives the status from the server in step S67. In step S68, the received status is determined. If the received status is "reception normal", the processing in step S69 is performed. If the received status is "reception abnormal", the status is "created" in the processing in step S52. Return to. When the response from the server is "reception normal", the status of the transfer management table 5 is updated to "notified" in step S69.

On the server side, in response to the processing of step S64, in step S70, the transfer management table 6 whose status is "reception normal" is updated to "notified". Then, in step S71, a process such as an application program that uses the transfer data is activated.

The above is the flow of the entire operation when focusing on one transmission file. In the host computer, after the status is updated to "notified", in step S72, it is checked whether or not a certain period of time designated by a parameter in advance has elapsed. If it is within that period, the judgment is repeated again with an appropriate trigger, and if that period elapses,
In step S73, the status of the transfer management table 5 is updated to "not created". For example, in a system in which a certain transmission file is created and transferred once a day, it may be considered that the process of step S73 is executed once a day. The next day, the service will start with the send file not yet created.

FIG. 11 is a diagram showing a system configuration example to which the present invention is applied. In the figure, 21 to 24 are computers, 31 to 34 are communication means, 41 to 48 are display devices,
51 to 54 represent communication lines. The computer 21 is a host computer. The computers 22 to 24 are servers, and are connected to the host computer 21 via communication lines 52 to 54, respectively. The display devices 41 to 48 are connected to the computers 21 to 24 via communication means 31 to 34 such as communication lines or so-called local area networks.

In the above description of the embodiment, an example in which data is transmitted from the computer 1 to the computer 2 shown in FIG. 1 has been described, but the computer 1 and the computer 2 are provided with similar means and are configured symmetrically. By doing so, it is possible to enable data transmission from the computer 2 side to the computer 1 side. Also, the computer 1 to which the initiative is given requests the computer 2 to receive the file, and the data is transferred from the computer 2 side to the computer 1 side in response to the request. This can be realized by the similar status management of 5 and 6.

[0044]

As described above, according to the present invention,
Not only normal automatic transfer is possible, but automatic re-transfer is also performed at abnormal end, so no operator intervention is required, and 24-hour unmanned operation can be easily realized. In addition, it is possible to prevent a transfer failure due to an operator's erroneous operation.

Further, from the monitoring of the presence / absence of the transfer data to the confirmation after the transfer, everything is automated, so that the cooperation of the respective processes can be carried out smoothly and the processing time is shortened. Furthermore, even if the number of files to be sent or the number of destinations increases, simply add the registration to the transfer management table.
It becomes possible to deal with it easily.

[Brief description of drawings]

FIG. 1 is a principle configuration diagram of the present invention.

FIG. 2 is a diagram showing a configuration example of a transfer management table in the embodiment.

FIG. 3 is a diagram showing an example of items in a transfer management table in the embodiment.

FIG. 4 is a diagram showing a processing flow of automatic recognition processing means of the host computer in the embodiment.

FIG. 5 is a diagram showing a processing flow of automatic start processing means of the host computer in the embodiment.

FIG. 6 is a diagram showing a processing flow of automatic inspection / repair processing means of the host computer in the embodiment.

FIG. 7 is a diagram showing a processing flow of automatic start processing means of the server in the embodiment.

FIG. 8 is a diagram showing a processing flow of automatic inspection / repair processing means of the server in the embodiment.

FIG. 9 is a diagram showing an overall control flow in the embodiment.

FIG. 10 is a diagram showing an overall operation flow in the embodiment.

FIG. 11 is a diagram showing a system configuration example to which the present invention is applied.

[Explanation of symbols]

 1, Computer (CPU / Memory) 3,4 Storage device 5,6 Transfer management table 7,8 Display device 11 Automatic recognition processing means 12,13 Automatic start processing means 14,15 Automatic inspection / repair processing means

Claims (2)

[Claims] 1. Among a plurality of connected computers,
In a processing system for performing data cooperation processing between any of the computers, transfer management information storage means for holding state information regarding data transfer in the data cooperation processing
(5) and automatic recognition processing means for monitoring the status information of the transfer management information storage means (5) and determining whether or not data transfer is possible to the target computer when data linkage processing occurs ( 11) and the transfer management information storage means
Automatic start processing means (12) for monitoring the status information of (5) and starting data transfer to a target computer when data transfer is possible, and the transfer management information storage means
The status information of (5) is monitored, the consistency of the transfer data is checked after the data transfer is completed, and if it is determined that the transfer data is inconsistent, the status information for starting the retransfer is used for the transfer. Automatic inspection / repair processing means (14) set in management information storage means (5) and display device for displaying data transfer status
(7) An automatic data transfer processing method between computers comprising: 2. The automatic data transfer processing method between computers according to claim 1, wherein the automatic recognition processing means (11),
Automatic start processing means (12) and automatic inspection / repair processing means (1
4) is an automatic data transfer processing method between computers, which is configured to be activated asynchronously at predetermined time intervals.