JPH10161907A - State monitoring method for computer system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a state monitoring method capable of shortening the state monitoring time of entire system and easily dealing with a system change. SOLUTION: A state information communication program 1, state monitoring program 2 and preserving means 3 for preserving state information are provided at respective computers. In this case, the state information communication program 1 reads the state information of its own computer out of the preserving means 3 periodically by itself (a), transmits the information to the other computer by broadcast communication (b) and sets the state information received from the other computer into the preserving means 3 (c). The state monitoring program 2 monitors the state in its own computer, writes the result into the preserving means 3 (e) and monitors the updating state concerning the state information of the other computer set by the state information communication program 1 (d).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a state monitoring method for a computer system such as a function-distributed computer system in which a large number of computers are connected to a network.

[0002]

2. Description of the Related Art In a function-distributed computer system in which a plurality of computers are connected to a network, a workstation having a man-machine interface function is connected via a network with a host computer having a high capability as a main axis. Also, to increase system redundancy,
In some cases, duplication is performed including the host computer.

In such a computer system, the status of each computer is monitored mainly by a host computer, and a monitoring process is performed on a partner host computer forming a duplex pair and a workstation for a man-machine interface. The outline of this monitoring process is as follows, as shown in a schematic diagram in FIG.

(1) A program for communicating with a mutual computer on a network is executed.

(2) The host computer has system configuration information, and the status monitoring communication program sends information for requesting a response from the host computer to each of the computers to be monitored at a period set by data in the host computer. Transmit (a in FIG. 2).

(3) The target computer receiving the response request checks whether or not the function of the computer is normal by the internal status monitoring communication program (FIG. 2B,
c) If normal, a normal response is returned (d in FIG. 2).

[0007] When the application function of the computer is stopped, the communication program is also stopped and cannot respond, and the host computer detects that the state of the computer is abnormal. The host computer stores the response result as state information (e in FIG. 2).

[0008]

In recent computer systems, the distribution of functions has become finer, and the system configuration is no longer a combination of a host computer and a workstation for a man-machine interface.

For this reason, a system configuration is adopted in which a large number of computers are connected in a distributed manner on a network. For these reasons, the conventional state monitoring method has the following problems.

(A) In the case of sending and receiving status monitoring information led by a host computer, the number of target computers becomes large, and it takes time to monitor the status of the entire system including the performance of the network.

(B) In the state monitoring led by the host computer, since the host computer has a system configuration, if the system configuration changes due to addition of functions or distribution of functions, the data of the host computer must be changed. However, the flow of the status monitoring process also needs to be changed, which affects system management and system operation.

An object of the present invention is to provide a state monitoring method which can shorten the time for monitoring the state of the entire system and can easily cope with a system change.

[0013]

According to the present invention, the status of each computer is monitored by the computer itself,
An abnormality is notified to each other.
In a computer system in which a large number of computers are connected to a network and monitor the status of each computer, each computer is provided with a status information communication program, a status monitoring program, and a storage unit for storing status information. The state information of the computer is periodically read out from the storage unit by itself, the information is transmitted to other computers by broadcast communication, and the state information received from another computer is set in the storage unit. The state of the own computer is monitored, the result is written in the storage means, and the updated state of the state information of another computer set by the state information communication program is monitored.

[0014]

FIG. 1 is a schematic diagram showing an embodiment of the present invention. Each functional computer distributed in the system has the same state information communication program 1, state monitoring program 2, and storage means 3 for storing state information.

The state information communication program 1 reads out the state information of its own computer from the storage means 3 based on its own cycle time information (a in FIG. 1) and transmits the information to the connected computer on the network by broadcast communication. (B in FIG. 1).

The status information communication program 1 which has received status information from another computer sets the status information for monitoring the system configuration in the storage means 3 in its own computer based on the information (c in FIG. 1). . This information includes:

(1) The address and node name of the transmitting computer on the open protocol.

(2) Function names on the system recognized by programs running on the system.

(3) Time information of a cycle at which the computer transmits state information.

(4) Current state information of the function (normal operation, normal pause / stop, abnormal operation, abnormal stop, etc.).

(5) Time information when the information is received.

Next, the status monitoring program 2 monitors the status in its own computer and writes the result in the status information storage means 3 (e in FIG. 1). This information is notified to each computer by broadcast communication by the state information communication program 1.

Further, the status monitoring program 2 monitors the update status of the status information of the other computers set by the status information communication program 1 (d in FIG. 1), and if the status information is not updated even after the scheduled time has passed. It is determined as abnormal and recorded in the storage means 3 (e in FIG. 1).

[0024]

As described above, according to the present invention, since the status of each computer is monitored by each computer and the normal / abnormal status is notified to each other, the following effects are obtained.

(1) The processing of the configuration control information can be load-balanced by the fact that a large number of distributed functional computers mutually notify the status information.

(2) There is no need to change the configuration monitoring data and processing when a functional computer is added to or removed from the system configuration.

(3) When monitoring the constituent computers,
The status information can be grasped more quickly than the conventional monitoring based on transmission and response.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of a state monitoring procedure according to an embodiment of the present invention.

FIG. 2 is a schematic diagram of a conventional state monitoring procedure.

[Explanation of symbols]

 1: State information communication program 2: State monitoring program 3: Storage means

Claims (1)

[Claims] 1. A computer system in which a number of computers are connected to a network and monitor the status of each computer, wherein each computer is provided with a status information communication program, a status monitoring program, and storage means for storing status information; The communication program reads the status information of the own computer from the storage unit based on its own cycle time information, transmits the information by broadcast communication to another computer, and stores the status information received from the other computer in the storage unit. The status monitoring program monitors the status in the own computer, writes the result in the storage unit, and monitors the updated status of the status information of the other computer set by the status information communication program. Computer system characterized by System status monitoring method.