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Network system, supervisory method of main memory resident data and storage medium

A resident data and network system technology, applied in the field of computer-readable storage media, can solve the problem that the main memory resident high-speed access characteristic cannot be exerted, the main memory resident data cannot be recovered, and the decentralized main memory resident data structure cannot be established. and other problems, to achieve the effect of high reliability and continuity

Inactive Publication Date: 2002-11-13
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, when starting the computer, even if the main memory resident data is set after loading the backup data written to the disk, it may not be possible to restore the main memory resident data before the computer stopped.
[0006] In addition, in the distributed computer system, the main memory resident data is independently managed by each computer unit, and it is impossible to establish a structure in which the distributed main memory resident data is managed by the distributed computer system as a whole.
[0007] Therefore, for high-speed access, the data that resides in the main memory is at high speed for local access on the computer where the data exists, but for access from other computers through the network, the high speed of the resident main memory cannot be exerted. access properties

Method used

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  • Network system, supervisory method of main memory resident data and storage medium

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specific Embodiment approach

[0051] Embodiments of the present invention are described below with accompanying drawings.

[0052] figure 1 It is a block diagram showing the relationship between components constituting the network system of the present invention. The relationship between the components will be described in detail below.

Embodiment 1

[0054] figure 2 and image 3 It is a block diagram of the network system of the present invention, which are continuous with each other. figure 2 Represents the only computer 1 that loads the original data 11 that resides in the main memory in the distributed computer system that constitutes a plurality of computers, image 3 Indicates one 2 of several computers that host the replicated data 21 as the replicated main memory on which the original data is loaded.

[0055] In each computer, the event processing accepting means 301 is composed of event processing accepting queues 21 and 22 and event processing accepting programs 13 and 23 .

[0056] The event processing execution unit 302 is composed of event processing execution queues 14 , 24 , submission waiting queues 15 , 25 , and event processing execution programs 16 , 26 .

[0057] The transaction sending unit 303 is composed of transaction sending queues 17 and 27 and transaction sending programs 18 and 28 .

[0058...

Embodiment 2

[0095] pass Figure 7 and Figure 8 The transaction recovery method in the local update of the main storage constant data of the present invention will be described. in addition, Figure 7 and Figure 8 consecutive to each other.

[0096] The two figures represent the ongoing figure 2 and image 3 In the case of local update processing described above, it is a method of recovering transaction processing from a transaction request missing or order disorder caused by a temporary network failure.

[0097] Figure 7 and Figure 8 Among them, the first event processing recovery unit 306 is composed of processing 113, 213 for detecting omission of event processing in a part of the event processing execution program, processing 114, 214 for reconstructing event processing after missing event processing, and event processing end queue 115, 215 .

[0098] When the event processing execution program 16 of the computer 1 finishes executing the event processing, it adds the exec...

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Abstract

In the computer network system, the initial value of the resident data of the main memory is set independently of the backup data of the disk when the computer is started, so that the application program can access the resident data of the main memory at high speed. In a network system in which application programs of a plurality of computers and main memory resident data accessed by the application programs are dispersedly arranged in each computer, each computer has: an item processing accepting part for accepting an item processing request from an application program; an item A processing execution part; a transaction sending part, which sends received transaction processing requests; a transaction receiving part, which receives transaction processing requests from other computers; and a system operation part.

Description

technical field [0001] The present invention relates to an application program of a plurality of computers constituting a network, a network system in which main-storage resident data accessed by the application program is distributed among the computers, a management method of main-storage resident data, and a method for realizing the management method computer readable storage media. Background technique [0002] In a computer system, in order to increase the processing speed, a method of resident application data as main memory is usually adopted. Usually, the backup of the main memory resident data is stored in the disk storage, and the initial value is set by loading the main memory resident data from the disk when the computer is started. [0003] The main memory resident data cannot be updated every time from the standpoint of low processing speed such as disk I / O waiting for backup purposes. [0004] Usually, the main memory resident data is written to the disk at ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F15/16G06F9/46G06F12/00G06F13/14H04L12/00
Inventor 长谷川义朗藤原睦上村秀一
Owner KK TOSHIBA