JPH0243642A - Multi-host system data control system - Google Patents

Abstract

PURPOSE:To make it unnecessary to execute the updating processing of data for respective hosts by providing a means to control the data shared by plural hosts with a special host and a means to distribute the data from a certain host to plural hosts. CONSTITUTION:A file 51 is a waiting coupling arrangement file, and when the necessity to correction for a present definition occurs, a sub-file A' is newly prepared by executing the updating processing with a host 1. Thereafter, a host identifier, a file name and a sub-file are inputted, a program 2 is executed, and thus, the sub-file A' is stored into a file 52 of the host 1 and a file 54 of a host 2. By executing a program 3 for respective hosts, a definition object A'' is prepared for a file 53 and the file 54. Thus, it is not necessary to execute the updating processing for a host.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a method for managing data processed by multiple hosts;
In particular, the present invention relates to a unified management method for data shared by multiple hosts and a data distribution method from one host to multiple hosts.

[Conventional technology]

Conventionally, as shown in Figure 2, data was either shared by the host or
A data file was created for each host, regardless of whether it was host-specific. Date update processing was executed for each host.

[Problem to be solved by the invention]

Conventionally, host shared data is also stored in host-specific files, similar to host-specific data. This method has the disadvantage that when data is updated, data inconsistency may occur between hosts, and processing is different between multiple hosts.

This will be explained using FIG. 4 as an example. File 3132 is a file specific to host 1, and files 41.42 are files specific to host 2. Currently, data 41. data 4
3 is the same value, and the final expected data is 42. Data 44 is host 1. This is data that must always be the same between hosts 2.

Suppose now that data 41 and data 43 need to be updated. However, if a failure or omission occurs in the update process of data 43 on the host 2 side, data 41 and data 4
The value of 3 becomes a different value.

Therefore, data 42 and data 4 after program 3 are executed.
4 is also a different value, causing inconsistency.

This makes it impossible for a system to use the same definition across multiple hosts.

[Means to solve the problem]

According to the present invention, by using files that can be accessed from multiple hosts, a means for managing data shared by multiple hosts on a specific host, and a means for distributing data from one host to multiple hosts are provided. A multi-host system data management method is obtained.

〔Example〕

Next, the present invention will be described in more detail with reference to the drawings showing one embodiment of the present invention.

Referring to FIG. 1, in one embodiment of the present invention, there are two hosts, each with an identifier 1.degree.2. In addition, files 11, 12.13, data 21,
22, 23, 24, and program 1.2.

File 11.12 is connected to host 1, and file 13 is connected to both hosts 1.2. Data 21 is data stored in the file 11, data 22 is data stored in the file 12, data 23 is data stored in the file 13, and data 24 is data input from the outside. Furthermore, program 1 is a program that updates data 21 in file 11, and operates only when necessary. Program 2 is a program that distributes data 21 in file 11 to host 1 and host 2 according to the instructions of data 24.

Normally, when storing data 21 in file 12 or file 13, only the necessary data can be registered in the specified file by inputting the host identifier, the identification code of the target data, etc. as data 24. .

Also, data 21 (i.e., data 22, data 23
), use program 1 to make the changes, and execute program 2 to change file 1.
2. Reflect in file 13.

As an example of actual use, a case where data such as a definition source is targeted will be explained with reference to FIG. 2.

File 51 is a standby joint organization file, and the current definition source is stored in subfile A. In each host, the definition source entered in file 52 or file 54 is expanded by executing program 3 and stored as a definition object in file 53 or file 55. If it is necessary to modify the current definition, A new subfile A' is created by executing the update process on the host 1. After that, by inputting the host identifier, file name, and subfile and executing program 2, subfile A' is stored in file 52 of host 1 and file 54 of host 2. By executing the definition object A ″
are created in files 53 and 54.

Furthermore, this method can also be used in the following cases.

A case in which data control in an online system is targeted will be explained with reference to FIG.

An online system is running in the host 1, and the host 2 processes specific data from the data input by the host 1. All input data from online is stored in the file 61 of the host 1, and is transferred to the file 62 of the host 2 by executing the program 2. At this time, it is also possible to extract only necessary data by setting any part of the input data text as a keyword and specifying the keyword when the program 2 is executed.

〔Effect of the invention〕

As described above, according to the present invention, there is no need to perform the updating process for each host as in the conventional case, and it is only necessary to perform the updating process once on one specific host. This prevents data inconsistency between hosts and improves reliability.

In addition, by distributing data from one host to multiple hosts,
Flexible data management can be achieved with a multi-host system.

[Brief explanation of the drawing]

FIG. 1 is a conceptual diagram of an embodiment of the present invention, and FIG. 2 is an explanatory diagram of operation during source data processing in an embodiment of the present invention.
FIG. 3 is an explanatory diagram of operations during online data processing in the embodiment, and FIG. 4 is a conceptual diagram of a conventional example. 1... Update processing program, 2... Data distribution program, 3... Data processing program, 11-13.
31~34.51~55,61.62...file,
21-24.41-44...data. Agent Patent Attorney Susumu Uchihara [Host 1] [Hoss 1-2] Kanen (Host 1) (Hoss) 2) (Honuto 1) (Homata 1-2) Daikasumi

Claims (1)

[Claims] It is characterized by having means for managing data shared by multiple hosts on a specific host by using files that can be accessed from multiple hosts, and means for distributing data from one host to multiple hosts. Multi-host system data management method.