JPH03269656A - Data transfer system - Google Patents

Abstract

PURPOSE:To perform the transfer of data with highly effective use of the resources by integrating a transmission status file SF with a reception SF, monitoring the idle capacity of the integrated SF after a fixed time for deletion of the undesired data, and compressing the SF. CONSTITUTION:A store means 2 transfers the desired data on a user file 1 and its attribute information to a data file 3 and an SF 4 to store them there. The transfer condition of the data transfer destination is stored in a transfer condition information storing means of SF4. A message transmission means 7 reads the information out of the SF 4 every fixed time and compresses the SF 4 when an idle area of the SF 4 is decuded down to a level less than a fixed size. At the data transfer destination (computer), a reception file 9 is secured after reception of a message from the means 7, the transfer information is written into the SF 4, and then the information is read out of the SF 4 and sent to the transfer destination. The transfer destination message reception means 8 updates the transfer condition storing area of NF. Each file transmission means 6 reads the SF 4 every fixed time and sends the file 3 to the transfer destination. This operation is repeated until no transfer data is received from each transfer original yet.

Description

[Detailed Description of the Invention] [Required 4a] A data transfer method in which data transferred from multiple sources is transferred from one computer to another computer, or from one total III to another computer via a relay computer. Regarding.

The object of the present invention is to provide a data transfer method that allows data transfer from one computer to another computer directly or via an intermediate computer while efficiently using resources.

A data file in which data to be transferred from a source is stored, attribute information of the data including at least transfer source information, transfer destination information, and information regarding transfer data, and transfer status information corresponding to each attribute information are stored. a message transmitting means for transmitting a message according to the contents of the transfer status information stored in each status file and changing the transfer status information; and a message transmitting means for reading the status file and transmitting the data to the transfer destination. The system also includes file sending means for changing the transfer status information, message receiving means for receiving a message and changing the transfer status storage area of the status file, and monitoring means for reading the status file and monitoring the transfer status information. Configure it like this.

[Industrial Application Field] The present invention relates to a data transfer method for transferring data from a plurality of sources from one computer to another computer, or from one computer to another computer via a relay computer.

[Prior Art] A conventional configuration for transmitting and receiving various data between computers will be explained with reference to the principle configuration diagram of a conventional example shown in FIG.

The entire configuration of FIG. 9 represents one sending computer, and the main body of data to be sent from multiple sources (terminal devices, etc.) to other computers is stored in a data file 91, and the data transfer source ( Attribute information consisting of the sender), transfer destination (recipient computer), and other information regarding the transfer data is stored in the information file 92. This information generated from multiple sources 90 is stored in data files 91. Under the control of transfer data storage means 93 provided corresponding to each information file 92, the main body of data is stored in a transmission-next file 94, and attribute information is stored in a transmission status file 95 having a transfer status display area. Stored.

A transmitting means 96 provided for the next file for transmitting 94 and the status file for transmitting 95 is connected to a specific receiving computer via a communication line. Transmission means 9
6 extracts the data and attribute information stored at the beginning of the next file for transmission 94 and the status file for transmission 95 and transfers them to the receiving computer. At this time, the transmittal letter 1 in the transmission status file 95! When the display area is marked as sent and the receiving computer confirms that the data has been received (by a receiving means (not shown)), the next stored data and attribute information are retrieved from the sending-next file 94 and the sending status file 95. and send it to the receiving computer in the same way as above,
This operation is repeated until there is no more data transferred from the source.

In FIG. 9, the next file for transmission 94. The transmission status file 95 and the transmission means 96 are individually provided for each receiving computer located at a different location, and the transmission data storage means 9 corresponds to one transmission source 90.
3 to each file 94 and 95 corresponding to a plurality of receiving computers. Also, although omitted in FIG. 9, there is a receiving-next file as a mechanism on the receiving side.

It is equipped with a receiving status file and receiving means.

[Problems to be Solved by the Invention] According to the above-mentioned prior art example of stealing, when there is insufficient free space in the next file for transmission or the status file for transmission, data or information (attribute information) to be transferred is stored. Therefore, the source file was forced to wait until storage capacity became available, and it could not be transferred. Also.

It is necessary to provide a transmission status file, a transmission-next file, a reception status file, and a reception-next file in each computer, and as the number of computers increases, the number of files that can be sent to each destination also increases.
There were problems in that costs increased and resource management became difficult.

SUMMARY OF THE INVENTION An object of the present invention is to provide a data transfer method that allows data transfer from one computer to another computer directly or via an intermediate computer while efficiently utilizing resources.

[Means to solve ia] FIG. 1 is a diagram showing the principle configuration of the present invention.

In FIG. 1, 1 is a user file, 2 is a data file 3 which receives attribute information from the user file 1 and a user terminal (not shown). The transfer data storage means 3 to be transferred to the status file 4 is a data file that stores transmission data, 4 is a status file that stores attribute information and has a storage area for transfer status information, and 5 is a monitoring unit that monitors the status of the status file. , 6 is a file transmitting means for transmitting the data of data file 3 to other computers, 7 is a message transmitting means for transmitting the attribute information and status information of the status file to other computers, and 8 is a message sent from another computer. 9 is a receiving file 10 that stores data sent from another company's computer. 9 is a transfer data receiving means that transfers the data of the receiving file 9 and the attribute information of the status file 4 to the user file 1 or the user terminal. It is.

The present invention integrates the sending status file and the receiving status file without using the conventional sending file, and monitors the free space of the integrated status file at regular intervals to eliminate unnecessary files. It deletes data and compresses the status file.

[Operation] When the configuration shown in FIG. 1 is used as the transfer source computer, the data of the user file 1 requested to be transferred, the transfer source information of the data, the transfer destination information, and the attribute information including information regarding the data are stored in the transfer data storage means. 2 are transferred to and stored in the data file 3 and status file 4, respectively. The status file 4 is provided with a transfer status information storage area in which information indicating the transfer status of the transferred data (there are many statuses such as waiting for transfer, waiting for a response from the other party, transmission method, etc.) is stored. There is.

The message transmitting means 7 reads the information of the status file 4 at regular intervals, transmits the read information to the transfer destination (computer) as a message, and compresses the status file 4 when the free space of the status file 4 becomes less than a certain value. (Delete transmission method information, etc.) or use another status file prepared in advance (not shown)
Performs processing to replace.

At the transfer destination (computer), when the message receiving means 8 receives the message sent from the message transmitting means 7 of the transfer source, it secures the receiving file 9, writes the transfer information to the status file 4 of the transfer destination, and transfers the message to the receiving computer. The message sending means inside also reads the status file at regular intervals.

Sends the read information (indicating that the data file has been secured) to the transfer source as a message.

The message receiving means 8 in the transfer source computer updates the status file according to the received message.

Change the transfer status storage area (with the transfer destination data file secured). Each file sending means 6 reads the status file at regular intervals, checks the transfer status, and transfers the data file indicated by the contents to the transfer destination. This behavior works for each email sent.

The message receiving and transmitting means repeats this until there is no more data to be transferred from each transfer source.

Message sending means7. The message receiving means 8 and the status file 4 can be used in common for a plurality of different partner computers, and can receive a plurality of sets of data from a plurality of senders (when a plurality of transfer data storage means 2 are provided). Attribute information is data file 3. When stored in the status file 4, each message transmitting means 7.
The message receiving means 8 and the file transmitting means 6 first transfer the transfer data and attribute information stored in the status file 4 to the transfer destination computer.

On the other hand, when the destination computer confirms that it has received the transferred data, it writes ``Received the transferred data'' in the transfer status storage area of the status file of the destination computer, and the message sending means transfers the data as indicated in the status file. The received message is sent to the original computer, and the message is transferred repeatedly until there is no more data sent from each computer.

Furthermore, if the destination of the data is another computer via the other computer according to the attribute information of the data sent to the other computer, the attribute information is stored in the status file of the other computer from the message sending means 7. , the data is transferred from the file sending means 6 to the receiving file 9 of the other party's computer. Thereafter, it is determined that the status file should be further transmitted to another computer based on the contents of the status file, and the transfer to the other computer is executed.

In this way, resources can be used more effectively for transfer from each computer than in the conventional method, and the transfer status can also be recognized in detail.

[Example] Figure 2 is a configuration diagram of an example, and Figures 3(a) to 3(d)
) is a processing flow diagram of message transmission according to the embodiment, FIG. 4 is a processing flow diagram of file transmission according to the embodiment, and FIG. 5 is a processing flow diagram of message reception according to the embodiment.

Figure 6 is a processing flow diagram of monitoring in the embodiment, Figure 7 is one-to-one
Sequence diagram showing the transfer state in the transfer operation, No. 8
The figure is a sequence diagram showing the transfer state in the transfer operation of relay transfer.

In FIG. 2, 20a and 20b are a plurality of transfer sources (computers), and 30 is a transfer destination (computer).

21 is a user file, 22 is a transfer data storage program, 23 is a data file in which transmission data is stored, 24 is a status file having an area for storing transfer status information and in which attribute information is stored, and 25 is a monitoring program. , 26 is a file sending program, and 27 is a message sending program.

28 is a message receiving program, 30 is a transfer destination (calculation I), 31 is a user file for receiving data,
Reference numeral 32 indicates a transfer data receiving program 33, which is a data file for receiving data, and 34-38 correspond to the above-mentioned 24-28.

As shown in FIG. 2, in each of the plurality of transfer sources 20a and 20b, transfer information (attribute information in FIG. 1) including at least 5 transfer source information, transfer destination information, and transfer data information (attribute information) is transmitted from each source. The information that has been generated and that is desired to be transferred is stored in the user file 21. Two transfer sources 2
Even if transfer requests are issued from 0a and 20b at the same time, the data and transfer information are stored in the data file 23 and status file 24, respectively, by the transfer data storage program 22 at each transfer source. In this case, the status file 24 is provided with a transfer status storage area in which information representing a file reservation request representing a transfer request is set.

Next, the processing flow of the message transmission processing unit activated by each message transmission program 27 is shown in FIGS. 3(a) to 3(d), and will be described with reference to these.

That is, when started, the status files 24 are compressed, and each status file 24 is read out at regular intervals, so that the transfer status storage area is filled with file reservation request letter B (
(state requesting transfer).

3. To send a message to the transfer destination 30 to secure an area in the data file 33 for storing transfer data.
301 to 304 in Figure (a), if the transmission is successful, the transfer status storage area of the status file 24 is changed to the file reservation request notification status (304, 305).

The message receiving program 38 of the transfer destination 30 executes the processing shown in the message receiving processing flow shown in FIG.

In this case, the message receiving program 38 of the forwarding destination 30
secures the reception data file 33 from the contents of the received message, creates a transfer status storage area in the status file 34, and changes the file to secured (see 500 to 504 in FIG. 5).

Further, the message sending program 37 of the forwarding destination 30 performs the processing according to FIGS. 3(a) to 3(d) above,
The status file 34 is read at regular intervals, and when the transfer status storage area is in the received file reservation completed state, a reception file reservation message is sent to the transfer source based on the information, and a file reservation completion message is sent to the transfer status storage area of the status file. Change to received status (Figure 3(b))
309-311, 313, 314).

The message reception program 28 of each transfer source executes the processing flow shown in FIG. 5 above, and changes the file reservation requested state in the transfer status storage area of each status file 24 to the file transmission standby state based on the received file reservation message. do. (See Figure 5) Each file transmission program 26 at the transfer source executes processing according to the file transmission processing flow shown in Figure 4, reads the status file 24 at regular intervals, and changes the transfer status to a file transmission waiting state. At that time, extract the information from the transfer data file 23 corresponding to the information and transfer it to the transfer destination,
Change the transfer status storage area of each status file 24 to the file sent status (400 to 40 in Figure 5).
3.405, 406), each message sending program 27 reads the status file 24 at regular intervals as described above, and when the file sending completion state is detected, sends a file sending completion message to the transfer destination based on the information. When the data is sent normally, the transfer status storage area of the status file 24 is changed to the data transmission completion notification status (316 to 318, 320, 32 in FIG. 3(C)).
(see 1).

If the content of the received message is a file sent message and the forwarding destination is a date calculator, the status file 3
The contents of the transfer status storage area of the status file 34 are changed to indicate that the file has been received, and if not, the contents of the transfer status storage area of the status file 34 are changed to the file reservation request status. (3rd
505506 in Figure (C)).

The transfer data receiving program 32 of the transfer destination 30 reads the status file 34, extracts the data from the data file 33 for reception based on the attribute information indicating that the transfer status storage area is in the file reception completed state, and transfers the data to each user file 31. By writing, the file reception completion status in the transfer status storage area of the status file 34 is changed to the file reception status.

The message sending program 37 of the transfer destination 30 is.

If the status file 34 is read at regular intervals and the transfer status storage area is in the file reception status, a file reception message is sent to the transfer source based on the information, and the transfer status storage area is changed to the file reception notification status (Fig. 3). (d)
323-325.327328).

When the received message is a file reception message, the transfer source message reception program 28 changes the file transmission completion notification state in the transfer status storage area of each transfer status file 240 to the file reception completion notification state. The above operations are repeated until there is no more data to be transferred by each program.

If an abnormality occurs in each of the processing flows shown in Figures 3 to 5 above, the transfer status storage area of the status file is changed to a system failure status or a 1 notification error status in the corresponding step. .

The monitoring program 25 executes the processing flow shown in FIG.
．． 34) is read out at regular intervals.

Monitor status file capacity and line status.

It also notifies the computer system when an abnormality occurs in the system.

Next, a sequence showing the transfer state in the one-to-one transfer operation shown in FIG. 7 will be outlined.

This example is a case where data is transmitted from a transfer source computer In this case, "A" is a transfer status code, indicating a file reservation request waiting state, and "9999" is a serial number for transfer, which is assigned in correspondence with each file. When a message is sent in this state, the status code of the transfer source becomes B (file reservation request notification state), and when the message is received and the received file is secured at the transfer destination, the status code becomes C.
(file reservation complete state). When this file reservation completion notification is sent as a message, the status code at the transfer destination becomes D (file reservation completion notification state), and when the transfer source receives this message, the status code becomes E (file transmission standby state). Thereafter, the transfer source transmits the contents of the sending file and stores them in the receiving file of the transfer destination.

Thereafter, data transfer is performed by the same process as described in FIGS. 2 to 5 above.

Here, the meanings of other status codes shown in FIG. 7 are listed.

F: File transmission start state G: File transmission completion state H: File transmission completion notification state I: File reception completion state J: File reception state: File reception notification state Next, Fig. 8(a), Fig. 8 middle ) will outline the sequence showing the transfer status in the relay transfer operation.

This example shows the source calculation I! This is a case where data is transferred from X to computer Z via intermediate computer Y.

First, in FIG. 8(a), a transmission file is created by the same process as in FIG. When the data is received by computer X (status code E), the contents of the transmission file are transmitted from calculation 11X and stored in the reception file of calculation 11Y.

Calculation I! When a file transmission completion message is sent from x and received by computer Y, the reception processing program of calculation llY identifies the attribute information such as the forwarding source and forwarding destination that the receiver took when receiving the first message, and processes this message. Since it is known that the file is not addressed to its own computer but to computer Z, the status code is changed to A upon receiving the file transmission completion message from Calculator 11X.

Subsequently, in FIG. 8), computer X sends a message to notify the file reservation request.

For this, secure the received file on computer Z.

When the notification is made by sending a message, the 5 computers Y receive this.

Thereafter, similar to the one-to-one transfer in FIG. 7, file transmission and transmission of a file transmission completion message are performed in sequence, and computer Z receives the received file as a user file. Finally, calculate! When Z sends a message indicating that the file has been received, this is used for relay calculations.
When I receive it, this message is not addressed to my own computer Y.

The status code is changed to J, and furthermore, computer Y sends a message indicating that the file has been received to computer X, which is the transfer source. Upon receiving this, the computer χ will start the other party's calculation IIZ.
You can know that the file has been received.

[Effects of the Invention] According to the present invention, data transferred from multiple sources can be transferred from one computer to another computer, or from one computer to another computer passing through multiple computers on the way. This method allows data transfer to be performed using resources more efficiently, and stable operation can be achieved by monitoring the status of the transfer system.

[Brief explanation of drawings]

Fig. 1 is a diagram of the principle of the present invention, Fig. 2 is a block diagram of an embodiment, Figs. 3(a) to 3(d) are processing flow diagrams of message transmission in the embodiment, and Fig. 4 is an implementation diagram. FIG. 5 is a process flow diagram for sending a file in the example. FIG. 5 is a process flow diagram for receiving a message in the embodiment. FIG. 6 is a process flow diagram for monitoring in the embodiment.
The figure is a sequence diagram showing the transfer state in a one-to-one transfer operation, FIGS. 8(a) to 8(b) are sequence diagrams showing the transfer state in a relay transfer transfer operation, and FIG. 9 is a sequence diagram showing the transfer state in a relay transfer operation. It is a principle block diagram. 9 in Figure 1 1: User file 2: Transfer data storage means 3: Data file 4: Status file 5: Monitoring means 6; File sending means 7: Message sending means 8: Message receiving means 9: Reception file IO: Transfer data Receiving means Principle block diagram of the present invention Processing flow diagram for sending a message for Jikei J M3 Figure (a) Block diagram for the embodiment Processing flow diagram for sending a message for an actual chest example Figure 3 (b) Real egg throat Figure 3 shows the processing flow for sending a message.
(C) Real 3! #II message sending processing flow 3rd
Figure (d) Processing flow diagram of monitoring in the embodiment Figure 6 Transfer clause of relay transfer: Sequence diagram showing the transfer status in Day 8 (a) Calculation 41X Computer Y Computer middle! Sequence diagram showing transfer status in transfer operation Figure 8 (b) Principle configuration diagram of conventional example Figure 9

Claims (1)

[Claims] In data transfer for automatically transferring data from one computer to another computer or from one computer to another computer via a relay computer, data to be transferred from a source is stored. It includes a data file (3) and a status file (4) in which attribute information including at least transfer source information, transfer destination information, and information regarding transfer data of the data and transfer status information corresponding to each attribute information are stored. , message transmitting means (7) for transmitting a message according to the contents of the transfer status information stored in each status file and changing the transfer status storage area; File transmitting means (6) for changing the transfer status information; Message receiving means (8) for receiving a message and changing the transfer status information in the status file; and monitoring means for reading the status file and monitoring the transfer status information. (
5) A data transfer method comprising: