JPH056288A - Mutual standby system - Google Patents

Abstract

PURPOSE:To continue the work of another work processing system without switching a host even in the case of completing the work processing system with a high priority order. CONSTITUTION:A group 31 (32) composed of a work processing system 11 (12) of a host 1 and a work processing system 21 (22) of a host 2 has a priority order 41 (42). When the work processing system 11 with the higher priority order 41 is turned to the state of dividing a threshold value, the host is switched. Even when the work processing system 12 with the lower priority order 42 is turned to the state of dividing the threshold value, the host is not switched. When the work processing system 12 recovers the threshold value dividing state, the state is canceled. Even when the work processing system 11 is completed, the host is not switched but the work processing system 12 is continued.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mutual standby system, and more particularly to a mutual standby system which is a host having a plurality of business processing systems and has a threshold value relating to the processing capacity of each business processing system.

[0002]

2. Description of the Related Art In a conventional mutual standby system, an active business processing system that performs processing requested by a user and a standby business processing system that takes over the business in the event of a failure of the active business processing system are grouped into one group. The host has different active business processing systems and standby business processing systems from the group, monitors each other while performing their respective active business, and when other hosts become unable to continue processing By handing over the work to the standby job processing system of the local host that is in the same group as the operating job processing system of the enabled host, the user does not think that the processing cannot be continued.

A conventional mutual standby system is a host having a plurality of business processing systems. Each business processing system has a threshold value relating to its processing capacity, and the threshold value of an operating business processing system that is not the highest priority is the highest. When the processing capacity of the highest priority active business processing system is below the threshold level, the host is switched, and the processing capacity of the non-highest priority active business processing system is below the threshold level. Even if the processing capacity of the business processing system has recovered from the threshold value broken state, the host should be switched at the end of the active business processing system with a higher priority than the business processing system. Therefore, the business was continued.

[0004]

The conventional mutual standby system described above is a host having a plurality of business processing systems, each business processing system having a threshold value relating to its processing capacity, and operating business processing which is not the highest priority. When the threshold value of the system is the largest and the processing capacity of the operating task processing system with the highest priority falls below the threshold value, the host is switched, and the processing capacity of the operating task processing system without the highest priority is the threshold value. If it becomes cracked, do not switch the host,
Even when the processing capacity of the business processing system is recovered from the threshold value broken state, the host is switched to continue the business at the end of the active business processing system having a higher priority than the business processing system. It has the drawback of having to be.

[0005]

The mutual standby system of the present invention comprises an active business processing system which performs processing requested by a user and a standby business processing system which takes over the business when the active business processing system fails. When a single group is used, and each host has operating and standby business processing systems of different groups, monitor each other while performing their respective operating tasks, and when other hosts become unable to continue processing , By not handing over the work to the standby job processing system of the local host, which is in the same group as the operating job processing system of the host in which processing cannot be continued, prevents the user from seeing that the processing cannot be continued In a mutual standby system, in a host having multiple business processing systems, each business processing system has a threshold value related to its processing capacity, and the operational business is not the highest priority. If the threshold value of science largest, and degenerate recovery detection means processing power, a threshold management table for each business processing system, a threshold management table reference means for each business processing system,
When the threshold value broken state detection means of each business processing system and the threshold value broken state recovery detection means of each business processing system are provided, when the processing capacity of the highest priority operating business processing system becomes the threshold value broken state. When the host is switched and the processing capacity of the operating processing system that is not the highest priority is in the threshold cracking state, the host is not switched, and when the processing capacity of the business processing system is recovered from the threshold breaking state Is recognized and the state in which the threshold value is broken is cancelled, the work is continued without switching the host even when the active work processing system having a higher priority than the work processing system is terminated.

[0006]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the mutual standby system of the present invention. The mutual standby system in FIG. 1 is composed of a host 1 and a host 2, and the host 1 and the host 2 are connected via a path 3.

[0008] Also, the operating task processing system 1 of the host 1
1 and the standby work processing system 21 of the host 2 have a priority order 41, and the group 32 of the active work processing system 12 of the host 1 and the standby work processing system 22 of the host 2 , With priority 42,
It is assumed that the priority order 41 of the group 31 is higher than the priority order 42 of the group 32.

Then, the host 1 includes an operating task processing system 11 included in the group 31, an operating task processing system 12 included in the group 32, and a processing capacity degradation recovery detecting means 13.
A threshold management table 14 for each business processing system, a threshold management table reference means 15 for each business processing system, a threshold cracked state detection means 16 for each business processing system, and a threshold cracked state recovery detection means for each business processing system. And 17 are included.

On the other hand, the host 2 has a standby business processing system 21 included in the group 31, a standby business processing system 22 included in the group 32, and a degrading recovery detecting means 23 of the processing capacity.
A threshold management table 24 for each business processing system, a threshold management table reference means 25 for each business processing system, a threshold cracked state detection means 26 for each business processing system, and a threshold cracked state recovery detection means for each business processing system. And 27.

Next, threshold control regarding information processing capability in the mutual standby system of FIG. 1 will be described.

When the user starts using the host 1 and the host 2 as a mutual standby system and the processing capacity of the host 1 is reduced and the processing capacity of the active task processing system 12 falls below a threshold value, the host 1 , Host 1
The degeneration of the processing capacity is detected by the degeneracy recovery detecting means 13 of the existing processing capacity, and the threshold management table referring means 15 of each business processing system operates the operating business processing system 11 and the operating business processing system 12.
Is recognized, and the threshold value cracking state detection means 16 of each task processing system recognizes that the processing capacity of the working task processing system 12 is in the threshold cracking state. However, the priority order 42 of the working task processing system 12 is recognized. The priority order 41 of the active work processing system 11 is higher than that of the active work processing system 11. Since the active work processing system 11 is not in a threshold value cracking state, the host is not switched.

After that, if the processing capacity of the active task processing system 12 is recovered from the threshold value broken state due to the recovery of the processing capacity of the host 1, the host 1 detects by the degeneracy recovery detecting means 13 of the processing capacity existing in the host 1. The recovery of the processing capacity is detected, the threshold value management table reference means 15 of each business processing system recognizes the threshold values of the active business processing system 11 and the active business processing system 12, and the threshold value broken state recovery detection means 17 of each business processing system is detected. By doing so, it is recognized that the processing capacity of the operating task processing system 12 has recovered from the threshold value breaking state.

Next, when the operation processing system 11 is finished,
The active business processing system 12 becomes the highest priority business processing system in the host 1, and the active business processing system 1 is detected by the threshold value break state recovery detection means 17 of each business processing system existing in the host 1.
By recognizing that the processing capacity of No. 2 has recovered from the threshold value broken state and canceling the threshold value broken state, the work of the work processing system 12 is continued without switching the host.

As described above, the mutual standby system of this embodiment is a host having a plurality of business processing systems,
Each business processing system has a threshold value related to its processing capacity, and when the threshold value of the operating business processing system which is not the highest priority is the largest, the degeneracy recovery detection means of the processing capacity and the threshold management table of each business processing system By including the threshold management table reference means for each business processing system, the threshold cracked state detection means for each business processing system, and the threshold cracked state recovery detection means for each business processing system, the highest priority operational business processing system is provided. If the processing capacity of the above is in the threshold cracking state, the host is switched, and if the processing capacity of the operating task processing system that is not the highest priority is in the threshold cracking state, the host is not switched and the task processing is performed. When the processing capacity of the system recovers from the threshold value cracking state, it is recognized and the threshold value cracking state is canceled, and the host is switched even when the operating task processing system having a higher priority than the task processing system is terminated. To continue the business without.

[0016]

As described above, the mutual standby system of the present invention is a host having a plurality of business processing systems, and each business processing system has a threshold value relating to its processing capacity, and the operating business is not the highest priority. When the threshold of the processing system is the largest, and the processing capacity of the operating task processing system with the highest priority falls into the threshold cracking state, the host is switched, and the processing capacity of the operating task processing system not with the highest priority is If the threshold is broken, do not switch the host,
By recognizing it when the processing capacity of the business processing system recovers from the threshold value cracking state and canceling the threshold value cracking state,
This has the effect that the work can be continued without switching the host even when the active work processing system having a higher priority than the work processing system ends.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a mutual standby system of the present invention.

[Explanation of symbols]

 1, 2 Hosts 3 paths 11, 12 Operating work processing system 13, 23 Degradation recovery detection means for processing capacity 14, 24 Threshold management table 15, 25 Threshold management table reference means 16, 26 Threshold crack status detection means 17, 27 Threshold crack State recovery detection means 21,22 Standby task processing system 31,32 Group 41,42 Priority

Claims (1)

Claims: 1. An active business processing system that performs processing requested by a user and a standby business processing system that takes over the business in the event of a failure of the active business processing system are grouped into one group. Hosts have operating business processing systems and standby business processing systems in different groups, and monitor each other while performing each operating business, and when other hosts become unable to continue processing, processing cannot continue In a mutual standby system, which takes over the work to the standby work processing system of the local host that is in the same group as the running business processing system of the host in the status In a host that has a business processing system of, each business processing system has a threshold value related to its processing capacity, and the threshold value of the operating business processing system that is not the highest priority is the largest. A degenerate recovery detection means processing power, a threshold management table for each business processing system, a threshold management table reference means for each business processing system,
When the threshold value broken state detection means of each business processing system and the threshold value broken state recovery detection means of each business processing system are provided, when the processing capacity of the highest priority operating business processing system becomes the threshold value broken state. When the host is switched and the processing capacity of the operating processing system that is not the highest priority is in the threshold cracking state, the host is not switched, and when the processing capacity of the business processing system is recovered from the threshold breaking state By recognizing the above and canceling the threshold breached state, the mutual standby characterized by continuing the operation without switching the host even when the active business processing system having a higher priority than the business processing system ends system.