JPH0683650A - System resources monitoring method - Google Patents

Abstract

PURPOSE:To prevent the system down of an information processor by controlling the load in real time to the system resources in regard of the system resources monitoring method for the information processor, etc., constructing an on-line network. CONSTITUTION:An information processor (host computer) 1 contains a software monitor 10 to collect the application information on the system resources and can carry out the application programs A, B and C in parallel to each other. Then the allowance value, i. e., the load set to the system resources is previously defined together with an execution stopping procedure for each of programs A-C. The application program serving as the load exceeding the allowance value to the system resources is detected based on the application information collected by the monitor 10. Then the execution of the detected application program is stopped based on the defined procedure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of monitoring system resources such as an information processing device which constitutes an online network.

In an online network in which a plurality of terminals access a host computer, it is necessary to prevent system down of the host computer and improve network reliability.

[0003]

2. Description of the Related Art Generally, a host of an online network is provided with a software monitor (monitoring program) for collecting and storing usage information of system resources. Usage information is displayed or printed out in a timely manner,
It is used by the network administrator as management information for smooth and efficient operation of the network.

On the other hand, in some online networks, a host is configured to execute application programs corresponding to various processes (for example, information retrieval and numerical calculation) in parallel in response to access by a terminal.

In this type of network, depending on the content of the processing requested by the network user (terminal operator), that is, the execution conditions of the application program such as the search range and the calculation formula, the application program may make a difference with respect to the host system resources. It may overload and cause the system of the host to go down.

Conventionally, although the usage information of the system resources is automatically collected, the load on the system resources is manually adjusted by the network administrator.
That is, usually, the network user first notices the abnormality of the network from the responsiveness (terminal response), and informs the network administrator of the abnormality by telephone (complains).

The network administrator who has received the report investigates the cause of the abnormality, and if the cause is an overload of the system resource, the execution of the high-load application program is forcibly stopped as a countermeasure against the abnormal situation. Input a control command to activate or warn the user (request to stop).

[0008]

Conventionally, there has been a problem that a system administrator may be delayed due to a delay in dealing with a network administrator. In order to avoid a system down, the network administrator must always grasp the usage status of the system resources by using the usage information and promptly deal with the abnormality, so that the network administrator has a heavy work load.

Further, when the coping method (particularly, the control command to be input) differs for each application program, there is a risk that the network user may be overly annoyed, for example, another normal application program may be stopped due to a coping error. There was also the problem of being there.

In view of the above problems, it is an object of the present invention to prevent system down of an information processing apparatus by adjusting the load on system resources in real time.

[0011]

In order to solve the above-mentioned problems, the monitoring method according to the invention of claim 1 comprises a software monitor 10 for collecting system resource usage information, as shown in FIG. In the information processing apparatus 1 capable of executing the application programs A, B, and C in parallel, a permissible value as a load on system resources and a procedure for stopping execution are defined in advance for each of the application programs A, B, and C. Based on the usage information collected by the software monitor, an application program having a load exceeding a permissible value for system resources is detected, and execution of the detected application program is stopped according to a defined procedure.

In the monitoring method according to the second aspect of the present invention, the allowable value of CPU usage is defined for each of the application programs A, B and C. In the monitoring method according to the invention of claim 3, the information processing device 1 is a host computer of an online network.

[0013]

The degree of burden of system resources is detected for each of a plurality of application programs based on the usage information collected by the software monitor.

When the load of the application program on the system resources such as the CPU exceeds the allowable value, the application program is stopped in a predetermined procedure, thereby reducing the load on the system resources and avoiding the system down. .

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram schematically showing the relationship between programs executed by a host computer 1 to which the monitoring method of the present invention is applied, and FIG. 2 is a diagram showing an example of the contents of the monitoring information table TAB of FIG. is there.

The host computer 1 is a general-purpose computer that constitutes an online network together with a plurality of terminals (not shown), and is provided with an operating environment definition file 30 for the network administrator to arbitrarily define an operating environment for executing the program. There is.

In FIG. 1, in the host computer 1, application programs A, B and C are activated by a CPU (central processing unit) (not shown) in response to access by a terminal, and prior to that, software for network management. The monitor 10 and the load adjustment program 20 are activated.

Here, the application program A,
B and C are processing programs arbitrarily provided according to the purpose of constructing the network. That is, for example, when the network constitutes an in-house information system,
Application programs A, B and C are for sales, manufacturing,
Various programs (stock management, information retrieval, etc.) for efficiency of each work such as development, and application programs A, B, C are new reservation / reservation change if the network constitutes a seat reservation system.・ It is a program corresponding to each processing such as reservation cancellation.

On the other hand, the software monitor 10 is a well-known monitoring program provided for the network administrator to analyze the traffic, and the system resources of the running application programs A, B, C are periodically monitored. Usage information (CPU usage, buffer usage, etc.) is collected.

The load adjusting program 20 is a management program which is a feature of the present invention. The load adjustment program 20 includes an information extraction unit 21, a determination unit 22, and a treatment unit 23.
The monitoring information table TAB is referred to in each of these parts at appropriate times.

In the monitoring information table TAB, as shown in FIG. 2, each application program to be managed is associated with an allowable value of system resource use and an execution stop procedure. In the example of FIG. 2, the CPU usage amount and the buffer usage amount are defined as allowable values. In addition, as an execution stop procedure, a program execution is automatically stopped immediately (CANCEL), a program execution is automatically stopped after end processing such as data saving (STOP), and a terminal user is requested to stop access. For example, it outputs a warning message to the terminal. When outputting the warning message, the execution of the application program is indirectly stopped via the terminal user.

Such a monitoring information table TAB is loaded from the operating environment definition file 30 into the work area (RAM) of the CPU when the load adjusting program 20 is started. Hereinafter, the function of each part of the load adjustment program 20 will be described.

The information extraction unit 21 fetches the latest usage information collected by the software monitor 10 and extracts the usage information corresponding to the application programs A, B, and C to be managed in a cycle of about 5 to 10 minutes.

The determination unit 22 determines the system resource usage status by comparing the usage information extracted by the information extraction unit 21 and the allowable value of the monitoring information table TAB for each application program A, B, C in order. Resources (especially CP
Detecting an application program that is overloaded with respect to U), that is, an application program that uses system resources beyond the limit defined as a tolerance. At this time, if the allowable value is not defined for the application program, the determination unit 22
Compares the default value of the allowed value with the usage information.

When the determination unit 22 detects an overloaded application program, the processing unit 23 stops the execution of the overloaded application program according to the definition of the monitoring information table TAB as a measure for reducing the load on the system resources. Perform processing to do so.

Here, for example, it is assumed that the application program A is overloaded. In this case, the processing unit 23 immediately stops (CANCEL) the execution of the application program A as shown by the solid line in FIG.

According to the above-described embodiment, by defining the execution stop procedure for each application program A, B, C of the program library of the host computer 1, the user of the application program is stopped by the execution stop. The loss incurred can be minimized.

In the above-mentioned embodiments, the host computer 1 forming an online network has been illustrated, but the present invention can be applied to various types of information processing apparatuses, and the number of application programs is arbitrary.

[0029]

According to the present invention, the load on the system resources can be adjusted in real time, and the system down of the information processing apparatus can be prevented.

According to the second aspect of the present invention, the system down of the information processing apparatus can be prevented more reliably. According to the invention of claim 3, a highly reliable online network can be constructed.

[Brief description of drawings]

FIG. 1 is a diagram schematically showing a relationship between programs executed by a host computer to which a monitoring method of the present invention is applied.

FIG. 2 is a diagram showing an example of contents of a monitoring information table of FIG.

[Explanation of symbols]

 1 host computer (information processing device) 10 software monitor A, B, C application program

Claims (3)

[Claims] 1. An information processing apparatus (1) comprising a software monitor (10) for collecting usage information of system resources and capable of executing a plurality of application programs (A) (B) (C) in parallel, in advance. For each application program (A) (B) (C), an allowable value as a load on system resources and a procedure for stopping execution are defined, and the software monitor (1
0) A system characterized by detecting an application program having a load exceeding a permissible value on system resources based on the usage information collected, and stopping the execution of the detected application program according to a defined procedure. Resource monitoring method. 2. Application program (A) (B)
2. The system resource monitoring method according to claim 1, wherein an allowable value of CPU usage is defined for each (C). 3. The system resource monitoring method according to claim 1 or 2, wherein the information processing device (1) is a host computer of an online network.