JPH0447346A - Decentraiized file processing system - Google Patents

Abstract

PURPOSE:To shorten the waiting time of a terminal side by reducing the number of times of a file request for a central part side by installing a file storage device at each terminal part side, and registering the file of high using frequency in the file storage device, and accessing preferentially the file storage device from each terminal part. CONSTITUTION:A magneto-optical disk device 7 is installed at every terminal part 2a to 2n, and document data to be used often at every terminal part 2a to 2n is registered beforehand in these magneto-optical disk device 7. At the time of the requirement of the document data at each terminal part 2a to 2n, if the required document data is registered previously in the corresponding magneto-optical disk device 7, the document data can be obtained without accessing the host computer 4 of a central part 1, and the number of times of access to the central part 1 is reduced. Thus, the waiting time caused by accessing the central part 1 can be greatly reduced, and simultaneously, the processing efficiency of a document can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a distributed file processing system that performs processing of documents and the like in a distributed manner.

(Prior art) As a system for distributing the processing of documents, etc.,
A distributed file processing system shown in FIG. 2 is known.

The distributed file processing system shown in this figure connects a host computer 101 provided on the central side and office computers 1028 to 102n provided on each terminal side via a LAN 103.
An autochanger-type large-capacity optical disk device 104 connected to the host computer 101 by connecting and operating each office computer 1028 to 102n.
is operated to output necessary document data from this large-capacity optical disk device 104, and after importing this into the office computer on the own terminal side via the host computer 101 and LAN 103, it can be displayed or collected. I do things.

(Problem M to be Solved by the Invention) However, in the conventional distributed file processing system described above, when each terminal unit processes a document, the host computer 101 on the central side is accessed and the large-capacity optical disk device 104 is accessed. Since the document data stored in the host computer 1 must be read out,
The operator has to wait from the time he starts accessing 01 until he receives the document data.
The problem was that there was a lot of wasted time.

In particular, when the large-capacity optical disk device 104 operates an autochanger to search for specified document data in order to read the specified document data, it takes too much time to receive the specified document data.

In view of the above circumstances, the present invention provides a distributed file processing system that can significantly reduce waiting time when accessing document data, etc. on the terminal side, and thereby significantly improve processing efficiency. The purpose is to

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the distributed file processing system according to the present invention connects the central part side and each terminal part side via a communication path, In a distributed file processing system in which a file request is sent from a central part to a central part, the necessary files are received and processed, a file storage device is provided at each terminal part, and frequently used files are registered in the file storage device. The file storage device is preferentially accessed from each terminal unit, thereby reducing the number of file requests to the central unit.

(Function) In the above configuration, the file storage device is preferentially accessed from each terminal unit to reduce the number of file requests to the central unit, thereby reducing loss time caused by accessing the central unit.

(Embodiment) Figure 1W1 is a block diagram showing an embodiment of a distributed file processing system according to the present invention.

The distributed file processing system shown in this figure has a central part 1,
A plurality of terminal units 28 to 2n and a LAN 3 that connects them
By storing frequently used document data in each of the terminal units 2a to 2n, it is possible to reduce the number of accesses from each terminal unit 28 to 2n to the central ill. Processes document data.

The central section 1 is equipped with a host computer 4 that performs various types of processing at high speed, and an autochanger-type large-capacity optical disk device 5 connected to the host computer 4. When a request for document data is received via the LAN 3, In response to this document data request, the large-capacity optical disk device 5 is operated to extract the specified document data and supply it via the LAN 3 to the terminal unit that issued the document data request.

Each of the terminal units 28 to 2n is equipped with an office computer 6 that performs various processes, and a magneto-optical disk device 7 connected to the office computer 6. Document data that is often used is registered in advance.

When any one of the terminal units 2a to 2ncp, for example, the keyboard of the office computer 6 of the terminal unit 2a, is operated to specify a document necessary for processing, the office computer 6 of the terminal unit 2a first inputs the document into the terminal unit 2a. When a certain magneto-optical disk device 7 is accessed, it is checked whether designated document data is registered in this magneto-optical disk device 7, and if it is registered, it is read out and displayed on the CRT of the office computer 6. After the document data is displayed, various specified processes are performed on the document data.

Furthermore, if the specified document data is not registered in the magneto-optical disk device 7 in the terminal unit 2a, the terminal m2a
The office computer 6 receives the document data designated by the document data request from the host computer 4 in the central section 1 via the LAN 3, and then performs various processes on the document data.

As described above, in this embodiment, each terminal section 28 to 2n
A magneto-optical disk device 7 is provided for each terminal, and document data that is frequently used for each terminal 2a to 2n is registered in advance in each magneto-optical disk device 7. When document data is required, if the necessary document data is registered in the corresponding magneto-optical disk device 7, this document data can be obtained without accessing the host computer 4 in the central section 1. By reducing the number of accesses to part 1, the waiting time caused by accessing central part 1 can be significantly reduced, and document processing efficiency can be greatly improved.

Further, in the embodiment described above, each terminal section 2a to 2n
Necessary document data is registered in advance in each magneto-optical disk device 7, and the document data obtained by issuing a document data request to the host computer 4 in the central unit 1 from each terminal unit 2a to 2n is sent to the host computer 4 in the central unit 1. Each time, the documents are registered in the corresponding magneto-optical disk device 7 and managed by giving priority to the documents that are frequently used, and when the memory becomes full, one document data is discarded in the order of lowest priority. It is also possible to leave only frequently used document data.

Further, in the embodiment described above, each terminal section 2a to 2n
Each time a keyboard is operated and one document is specified, the corresponding magneto-optical disk device 7 is accessed by the office computer 6 of each terminal unit 28 to 2n. When specified, the specified document data is read from the magneto-optical disk device 7 in the specified order, and if there is document data that is not registered in the magneto-optical disk device 7, it is read from the magneto-optical disk device 7. While reading the next document data, in parallel with this operation, a document data request may be sent to the host computer 4 in the central section 1 to receive document data that is not registered in the magneto-optical disk device 7. .

As a result, even if there is document data that is not registered in the magneto-optical disk device 7, the response when searching for document data can be made uniform.

〔Effect of the invention〕

As described above, according to the present invention, the waiting time when accessing document data or the like on the terminal side can be significantly reduced, thereby significantly improving processing efficiency.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of a distributed file processing system according to the present invention, and FIG. 2 is a block diagram showing an example of a conventionally known distributed file processing system. 1... Central part 2a to 2n... Terminal part 3... Communication path (LAN) 4... Host computer 5... Large capacity optical disk device 6... Office computer

Claims (1)

[Claims] (1) In a distributed file processing system in which the central part and each terminal part are connected via a communication path, each terminal part sends a file request to the central part, receives the necessary file, and processes it. A file storage device is provided on the terminal side, frequently used files are registered in the file storage device, and each terminal portion is given preferential access to the file storage device to reduce the number of file requests to the central side. A distributed file processing system featuring: