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Distribution data processing system and method for processing data in said system

A technology of distributed data and processing system, applied in electrical digital data processing, special data processing applications, and redundancy in hardware for error detection of data, etc.

Inactive Publication Date: 2006-04-12
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the conventional cluster system has a disadvantage in that the cost increases due to the allocation of a plurality of communication addresses shared by the servers.
Like this, it is difficult to construct a device for monitoring a server change in each client

Method used

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  • Distribution data processing system and method for processing data in said system
  • Distribution data processing system and method for processing data in said system
  • Distribution data processing system and method for processing data in said system

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Experimental program
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Embodiment Construction

[0042] figure 1 is a block diagram of a distributed data processing system 10 in accordance with the present invention. The distributed data processing system 10 includes a plurality of servers 12, 14 and a plurality of clients 20, 22, 24, 26, 30, 32 interconnected by communication cables, such as a LAN.

[0043] When the distributed data processing system 10 is working normally, for example, the server 12 and the clients 20, 22, 24, 26 perform the processing of the process control system of a production line, such as the processing for controlling the control process of a production machine for producing film , and the server 14 and the clients 30, 32 perform the processing of the production management system for managing production plans, raw materials and stocks.

[0044] The server 12, which is a server for performing processing of the process control system, basically includes a database memory 122 for storing, for example, production order information, manufacturing hi...

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Abstract

When a database of a database memory (122, 142) of a server (12, 14) is updated by a distributed data processing process performed by clients (20, 22, 24, 26, 30, 32) on an object to be controlled, a replication trigger generator (132, 152) generates a replication trigger. Based on the replication trigger, an updating information transfer unit (130, 150) transfers updating information to another server (12, 14). A database updating processor (128, 148) of the server (12, 14) which has received the updating information updates the database stored in the database memory (122, 142).

Description

technical field [0001] The invention relates to a distributed data processing system. A method comprising a plurality of servers and a plurality of clients connected to the servers for executing a distributed data processing process for an object to be controlled, and a method of processing data in such a distributed data processing system. Background technique [0002] Recent advances in information processors and information processing technology have led to the widespread practice of computer processing in different fields. For example, online data processing systems for financial institutions are well known. Such an on-line data processing system is a full-duplex structure that recovers from system failures. Specifically, the duplex system is composed of an active system and a backup system, and when the active system fails, the active system switches to the backup system to provide continuous service to users. [0003] In order that the active system can be switched ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/00G06F11/20G06F17/30H04L29/06H04L29/08
CPCG06F17/30575H04L67/20H04L67/1095H04L67/42G06F16/27H04L67/53H04L67/01G06F16/275
Inventor 须藤章夫
Owner FUJIFILM CORP
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