JP2004206634A - Monitoring method, operation monitoring device, monitoring system, and computer program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a monitoring method, an operation monitoring device and a monitoring system capable of reducing a load for a device and a communication line and easily assessing the state of a failure in monitoring the operating state of a device to be monitored such as a web server computer, and to provide a computer program. <P>SOLUTION: The operation monitoring device 10 transmits response requests for requesting responses indicating the operating state of the device 20 to be monitored at first time intervals (S101 to S103) and when responses indicating a normal operation can not be received to the response requests (S103:NO), changes intervals for transmitting the response requests to second time intervals shorter than the first time intervals (S106) and transmits the response requests at the second time intervals (S107 to S112). <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a monitoring method using an operation monitoring device that monitors the operation state of a monitoring target device to be monitored, an operation monitoring device to which the method is applied, a monitoring system using the operation monitoring device, and an operation monitoring thereof The present invention relates to a computer program for realizing a device, and more particularly to a monitoring method, an operation monitoring device, a monitoring system, and a computer program for efficiently monitoring a monitored device.
[0002]
[Prior art]
As a method of monitoring the operating state of a server computer, a monitoring system that requests a response from the server computer at a predetermined time interval and displays the result based on the response to the request is disclosed (for example, Patent Document 1). reference).
[0003]
[Patent Document 1]
JP 2001-125853 A
[0004]
[Problems to be solved by the invention]
It is not preferable to make a response request to monitor the operation status too frequently in consideration of the load on the communication line and the server computer. However, when there is a suspicion of a failure, it is necessary to determine whether there is a failure. Is desired.
[0005]
However, in the conventional monitoring system, since a response request is transmitted to the server computer at a fixed time interval, if the time interval is set short, a problem of an increase in the load on the communication line and various devices during a stable operation occurs, and If the time interval is set long, there is a problem that it is difficult to determine the presence or absence of a failure when a failure is suspected.
[0006]
In addition, the server computer itself has a high probability of stable operation, so it does not notify its state when it is normal, and notifies it only when there is a suspicion of failure, so it returns to the normal state after a failure occurs In addition, there is a problem that it is difficult to determine whether or not the operation is normal because notification of the occurrence of a failure is not performed.
[0007]
The present invention has been made in view of the above circumstances, and shortens a time interval for transmitting a response request to a server computer when it is determined that a failure has been suspected based on a response state to the response request. Monitoring that can prevent an increase in the load on communication lines and various devices during stable operation, but can easily determine whether a failure has occurred if it is suspected. A main object is to provide a method, an operation monitoring device to which the method is applied, a monitoring system using the operation monitoring device, and a computer program for realizing the operation monitoring device.
[0008]
Further, in the present invention, when it is determined that there is a suspicion that a failure has occurred, if a normal response is received continuously for a predetermined number of times or more, it is notified that the operating state is normal, thereby returning to the normal state. Another object is to provide an operation monitoring device or the like that can be easily identified.
[0009]
[Means for Solving the Problems]
A monitoring method according to a first aspect of the present invention is an operating method for transmitting a response request for requesting a response indicating the operating status of the monitored device to the monitored device, and monitoring the operating status based on receiving a response to the transmitted response request. In a monitoring method using a monitoring device, the operation monitoring device transmits a response request at a first time interval that is set in advance, determines whether a response indicating normal operation has been received, and determines whether a normal operation has been received. When it is determined that the response indicating the request has not been received, the time interval for transmitting the response request is changed to a second time interval shorter than the first time interval.
[0010]
In the monitoring method according to the first invention, a response request is transmitted to the monitoring target device such as a web server computer at the first time interval, a normal response cannot be received, and a failure may have occurred. If it is determined that there is a communication request, the response request is transmitted at a second time interval shorter than the first time interval, and the communication time of the communication line and the monitoring target device in a normal state are set by setting the first time interval longer. By setting the second time interval to be short while the processing load is reduced, it is possible to easily determine whether or not a failure has occurred if a failure is suspected.
[0011]
An operation monitoring device according to a second aspect of the present invention transmits a response request for requesting a response indicating the operation status of the monitored device to the monitored device, and monitors the operation status based on reception of a response to the transmitted response request. A means for transmitting a response request at a preset first time interval, and a means for determining whether or not a response indicating normal operation has been received, in an operation monitoring device for notifying an operation state being monitored. Means for transmitting, to a predetermined destination, notification information for notifying that the operation status of the monitored device is abnormal when it is determined that a response indicating normal operation has not been received, Means for changing the transmission interval to a second time interval shorter than the first time interval.
[0012]
In the operation monitoring device according to the second invention, a response request is transmitted to the monitoring target device such as a web server computer at the first time interval, a normal response cannot be received, and a failure may have occurred. If it is determined that there is a possibility, the response request is transmitted at a second time interval shorter than the first time interval, so that the first time interval is set longer so that the communication load of the communication line and the monitoring target device in the normal state are set. By setting the second time interval short, it is possible to easily determine whether or not a failure has occurred if the second time interval is set short while reducing the processing load of the process.
[0013]
The operation monitoring device according to a third invention is the operation monitoring device according to the second invention, wherein the means for counting the number of times the response indicating the normal operation is continuously received for the response request transmitted at the second time interval, Means for determining whether or not the response is continuous for a predetermined number of times or more, and means for changing the transmission interval of the response request to a first time interval when it is determined that a normal response has been received for the predetermined number of times or more, Means for transmitting, to a predetermined destination, notification information for notifying that the operating state is normal.
[0014]
In the operation monitoring device according to the third aspect of the present invention, when it is determined that a failure may have occurred and the response request is transmitted at the second time interval, the normal response is continuously received a predetermined number of times or more. Then, the monitoring target device determines that the monitoring target device has returned to normal, changes the transmission interval of the response request to the first time interval, and notifies the monitoring target device that the operating state is normal, thereby actually sending the monitoring target device to the monitoring target device. It is easy to determine if a failure has occurred or if the performance is only temporarily degraded.
[0015]
The operation monitoring device according to a fourth aspect of the present invention, when it is determined in the second or third aspect that a response indicating normal operation cannot be received from the monitoring target device, is associated with the monitoring target device. And transmitting a response request to another device.
[0016]
In the operation monitoring device according to the fourth aspect, when it is determined that a normal response cannot be received from the monitoring target device, a response request is transmitted to, for example, another device in the same environment as the monitoring target device. By monitoring the operating status of other devices, it is possible to determine whether a fault that may have occurred is a phenomenon of only a single monitored device or the entire communication environment. Appropriate disaster recovery work can be performed.
[0017]
A monitoring system according to a fifth aspect of the present invention provides an operation monitoring device according to any one of claims 2 to 4, a monitoring target device to be monitored by the operation monitoring device, and a transmission from the operation monitoring device. And a management device for receiving the notification information.
[0018]
In the monitoring system according to the fifth aspect, a response request is transmitted from the operation monitoring device to the monitoring target device such as the web server computer at the first time interval, and a normal response cannot be received, and a failure occurs. If it is determined that there is a possibility that there is a possibility, the response request is transmitted at a second time interval shorter than the first time interval. By setting the second time interval to be short, it is possible to easily determine whether or not a failure has occurred if the failure is suspected by setting the second time interval to be short while reducing the processing load on the monitoring target device.
[0019]
A computer program according to a sixth aspect of the present invention causes a computer to transmit a response request for requesting a response indicating the operation state of the monitored device to the monitored device, and based on the reception of a response to the transmitted response request, A computer program for transmitting a response request at a first time interval set in advance, a procedure for causing the computer to determine whether a response indicating normal operation has been received, Changing the transmission interval of the response request to a second time interval shorter than the first time interval when it is determined that the response indicating the normal operation cannot be received. .
[0020]
In the computer program according to the sixth aspect of the present invention, when the computer executes the computer program, the computer operates as an operation monitoring device that monitors the monitoring target device, and transmits a response request to the monitoring target device at a first time interval. When it is determined that there is a possibility that a failure has occurred due to a failure to receive a response, a response request is transmitted at a second time interval shorter than the first time interval, thereby reducing the first time interval. Setting a longer time period reduces the communication load on the communication line and the processing load on the monitoring target device under normal conditions, while setting a shorter second time interval makes it possible to determine whether a failure has occurred if it is suspected. It is possible to make it easier to determine.
[0021]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings showing the embodiments.
FIG. 1 is an explanatory view conceptually showing a monitoring system of the present invention.
In FIG. 1, reference numeral 10 denotes an operation monitoring device of the present invention using a server computer. The operation monitoring device 10 communicates with a monitoring target device 20 such as a web server computer via a communication network NW via a communication network NW. The operation status of the monitoring target device 20 is monitored.
Further, the operation monitoring device 10 is connected to the management device 30 using a client computer, and an operator operating the management device 30 can check the result monitored by the management device 30.
Further, the operation monitoring device 10 communicates with the other monitored devices 40, 40,... In the same communication environment as the monitored device 20. (In the following description, the other monitoring target device 40 is referred to as another device 40 in order to clearly distinguish the monitoring target device 20 from the other monitoring target device 40.)
Here, the other devices 40, 40,... In the same communication environment as the monitored device 20 are devices belonging to the same domain, such as “www.osakagas.co.jp”, The IP address indicating the position on the network NW is connected by a device belonging to the same IP address system such as "192.20.10. *** (* is optional)", and by the same connecting device such as a router and a hub (multi-stage). (Including connections) and devices that are in a relationship such as devices installed in the same server rack.
[0022]
Note that FIG. 1 shows a configuration in which the operation monitoring device 10, the monitoring target device 20, the management device 30, and the other devices 40, 40,... Are located on the same communication network NW. 30 are located on the same internal communication network such as a LAN, the monitored device 20 and the other devices 40, 40,... Are located on another internal communication network, and the operation monitoring device 10 and the monitored device 20 are connected to the Internet or the like. It can be applied to various forms such as being connected by an external communication network.
It is assumed that the monitored device 20 and the other devices 40, 40,... Are arranged in the same communication environment, that is, on the same communication network, but a mirror server that provides the same service as the monitored device 20 For example, when the device is used as the other device 40, it may be arranged in a different communication network.
[0023]
Next, the configuration of each device used in the monitoring system of the present invention will be described.
FIG. 2 is a block diagram showing the configuration of various devices used in the monitoring system of the present invention.
The operation monitoring device 10 includes a CPU 11 that controls the entire device, a computer program PG for the operation monitoring device of the present invention, and a CD-ROM drive that reads various information from a recording medium REC such as a CD-ROM that records various information such as data. Storage means 12 such as a hard disk for recording various information such as a computer program PG and data read by the auxiliary storage means 12, a RAM 14 for temporarily storing information used for various processing, and communication. A communication unit 15 is provided for connecting to the network NW.
The server computer reads the computer program PG of the present invention and various information such as data from the recording unit 13 and stores the read information in the RAM 14 to execute various procedures included in the computer program PG. It operates and transmits a response request for a response indicating the operating state to the monitoring target device 20.
The recording means 13 includes position information such as an IP address indicating the position of the monitored device 20 on the communication network NW to be monitored, and transmission destination information such as an e-mail address for transmitting information to the management device 30. , The position information of the other devices 40, 40,... Associated with the monitoring target device 20, and various settings such as time intervals for executing the monitoring method of the present invention.
[0024]
The monitoring target device 20 includes a CPU 21, a recording unit 22, a RAM 23, and a communication unit 24.
The recording unit 22 of the monitoring target device 20 stores a predetermined file in a format such as HTML (Hyper Text Markup Language) transmitted as a response to the response request transmitted from the monitoring target device 20. Is sent to the operation monitoring apparatus 10 as a response.
There are various methods for responding to the response request. A predetermined program is started using an interface such as CGI (Common Gateway Interface), a file indicating the operation status is generated, and the file is transmitted as a response. Is also good.
[0025]
The management device 30 includes a CPU 31, a recording unit 32, a RAM 33, a communication unit 34, an input unit 35 such as a mouse and a keyboard, and an output unit 36 such as a monitor and a printer.
[0026]
The other device 40 includes a CPU 41, a recording unit 42, a RAM 43, and a communication unit 44.
[0027]
Next, processing of each device used in the monitoring system of the present invention will be described.
FIG. 3 is a flowchart showing a monitoring process of the operation monitoring apparatus 10 of the present invention.
Under the control of the CPU 11 executing the computer program PG stored in the RAM 14, the operation monitoring device 10 waits for a first time such as 60 minutes which is set in advance (S 101), and returns a response indicating the operation state of the monitoring target device 20. Is transmitted from the communication means 15 to the monitoring target device 20 (S102).
After transmitting the response request, the operation monitoring device 10 determines whether or not a response indicating normal operation has been received in response to the transmitted response request under the control of the CPU 11 executing the computer program PG stored in the RAM 14. It is determined (S103), and if a response indicating normal operation is received (S103: YES), the process returns to step S101, and the subsequent processing is repeated.
When the monitoring target device 20 is operating normally by the processes in steps S101 to S103, the operation monitoring device 10 transmits a response request at the first time interval.
[0028]
If a response indicating normal operation cannot be received in step S103 (S103: NO), the operation monitoring device 10 controls the monitoring target device under the control of the CPU 11 executing the computer program PG stored in the RAM 14. Error notification information for notifying that the operation status of the device 20 is abnormal is transmitted from the communication unit 15 to the management device 30 based on the destination information set as the predetermined destination by e-mail or the like (S104). ).
Under the control of the CPU 31, the management device 30 receives the abnormality notification information, and outputs the received abnormality notification information from the output unit.
The case where the response indicating the normal operation could not be received in step S103 includes, for example, the case where the response indicating the abnormality is received, the case where the received response is abnormal, and the case where the response is received within a predetermined time. This is the case when it was not possible.
[0029]
In the operation monitoring device 10 that has transmitted the abnormality notification information, under the control of the CPU 11 that executes the computer program PG stored in the RAM 14, a response request is transmitted to the other devices 40, 40,. The other device monitoring subroutine is started (S105).
[0030]
Then, in the operation monitoring apparatus 10, the interval for transmitting the response request is changed to a second time interval, such as 10 minutes, which is shorter than the first time interval, under the control of the CPU 11 executing the computer program PG stored in the RAM 14 (S106). ), And waits for the second time (S107), and transmits a response request for requesting a response indicating the operation state of the monitoring target device 20 from the communication unit 15 to the monitoring target device 20 (S108).
After transmitting the response request, the operation monitoring device 10 determines whether or not a response indicating normal operation has been received in response to the transmitted response request under the control of the CPU 11 executing the computer program PG stored in the RAM 14. It is determined (S109), and if a response indicating normal operation cannot be received (S109: NO), abnormality notification information is transmitted from the communication unit 15 to the management device 30 (S110), and the process returns to step S107. , And the subsequent processing is repeated.
Under the control of the CPU 31, the management device 30 receives the abnormality notification information, and outputs the received abnormality notification information from the output unit.
[0031]
If a response indicating normal operation is received in step S109 (S109: YES), the operation monitoring apparatus 10 continuously responds to the transmitted response request under the control of the CPU 11 executing the computer program PG stored in the RAM 14. Then, the number of times a response indicating normal operation is received is counted (S111), and it is determined whether the counted number is continuous for a predetermined number of times, for example, 10 times or more (S112).
[0032]
If it is determined in step S112 that a normal response has been received continuously for a predetermined number of times or more (S112: YES), the operation monitoring device 10 controls the monitoring target under the control of the CPU 11 executing the computer program PG stored in the RAM 14. The normal notification information for notifying that the operation state of the device 20 is normal is transmitted from the communication unit 15 to the management device 30 based on the destination information set as the predetermined destination by an e-mail or the like ( (S113), the interval for transmitting the response request is changed from the second time interval to the first time interval (S114), and the process proceeds to step S101 to repeat the subsequent processes.
The management device 30 receives the normal notification information under the control of the CPU 31 and outputs the received normal notification information from the output unit 36.
In step S112, when it is determined that the number of times a normal response has been continuously received is less than the predetermined number (S112: NO), the process returns to step S107, and the subsequent processing is repeated.
When it is determined that there is a possibility that a failure has occurred in the monitoring target device 20 by the processing in steps S107 to S114, the operation monitoring device 10 transmits a response request at the second time interval.
[0033]
Next, the other device monitoring subroutine will be described.
FIG. 4 is a flowchart showing another device monitoring subroutine of the operation monitoring device 10 of the present invention.
As a process of the other device monitoring subroutine started in step S105 of the monitoring process described with reference to FIG. 3, the operation monitoring device 10 controls the monitoring target device 20 under the control of the CPU 11 executing the computer program PG stored in the RAM 14. The communication unit 15 transmits a response request for requesting a response indicating the operation state of the other device 40 to the other device 40 associated with (S201).
After transmitting the response request, the operation monitoring device 10 determines whether or not a response indicating normal operation has been received in response to the transmitted response request under the control of the CPU 11 executing the computer program PG stored in the RAM 14. It is determined (S202), and if a response indicating normal operation is received (S202: YES), the other device monitoring subroutine is terminated.
[0034]
If a response indicating normal operation cannot be received in step S202 (S202: NO), the operation monitoring device 10 controls the other device 40 under the control of the CPU 11 executing the computer program PG stored in the RAM 14. The communication means 15 transmits abnormality notification information for notifying that the operation state of the server is abnormal, to the management device 30 based on the destination information set as the predetermined destination (S203).
Under the control of the CPU 31, the management device 30 receives the abnormality notification information, and outputs the received abnormality notification information from the output unit.
[0035]
Then, the operation monitoring apparatus 10 waits for a second time under the control of the CPU 11 executing the computer program PG stored in the RAM 14 (S204), and transmits a response request to the other apparatus 40 from the communication unit 15 (S205).
After transmitting the response request, the operation monitoring device 10 determines whether or not a response indicating normal operation has been received in response to the transmitted response request under the control of the CPU 11 executing the computer program PG stored in the RAM 14. It is determined (S206), and if a response indicating normal operation cannot be received (S206: NO), the process returns to step S203 and the subsequent processes are repeated.
[0036]
In step S206, when a response indicating normal operation is received (S206: YES), the operation monitoring apparatus 10 continuously responds to the transmitted response request under the control of the CPU 11 executing the computer program PG stored in the RAM 14. Then, the number of times a response indicating normal operation is received is counted (S207), and it is determined whether or not the counted number is a predetermined number of times, for example, 10 or more (S208).
In step S208, when it is determined that the normal response has been received continuously for a predetermined number of times or more (S208: YES), the operation monitoring device 10 controls the other devices under the control of the CPU 11 executing the computer program PG stored in the RAM 14. The normal notification information for notifying that the operation state of the server 40 is normal is transmitted from the communication unit 15 to the management device 30 based on the destination information set as the predetermined destination by e-mail or the like (S209). ), End the other device monitoring subroutine.
The management device 30 receives the normal notification information under the control of the CPU 31 and outputs the received normal notification information from the output unit 36.
[0037]
If it is determined in step S208 that the number of times a normal response has been continuously received is less than the predetermined number (S208: NO), the process returns to step S204, and the subsequent processing is repeated.
When there are a plurality of other devices 40, the other device monitoring subroutine is activated for each device.
If the person in charge of managing the other device 40 is different from the person in charge of managing the monitored device 20, the abnormality notification information and the normal notification information in the other device monitoring subroutine are transmitted to devices other than the management device 30. Is also good.
Further, the operation monitoring device 10 determines not only the presence / absence of a failure based on the operation status of the monitoring target device 20 and the other devices 40, 40,. It is possible to determine whether or not it is a failure in the entire environment.
[0038]
In the above-described embodiment, the case where a response request indicating normal operation is not received from the monitoring target device 20 and a response request is transmitted to all the other devices 40, 40,... Not limited to this, the related state between the other devices 40, 40,... Is set in advance, and if a response indicating normal operation is not received from the monitoring target device 20, first a response to the first other device 40 is made. When a request is transmitted and a response indicating normal operation is not received from the first other device 40, various rules according to the operating environment are set such that a response request is transmitted to the second other device 40. It is possible to set.
[0039]
【The invention's effect】
As described in detail above, in the monitoring method, the operation monitoring device, the monitoring system, and the computer program according to the present invention, a response request for requesting a response indicating the operation state from the operation monitoring device to the monitoring target device at the first time interval is provided. If it is determined that a normal response cannot be received and a failure may have occurred, a response request is transmitted at a second time interval shorter than the first time interval, thereby enabling Setting a longer time interval reduces the communication load on the communication line and the processing load on the monitoring target device during normal operation, while setting a shorter second time interval causes a failure if a failure is suspected. It is possible to make it easier to determine whether or not a monitoring target has occurred, so that the person in charge of managing the monitoring target device does not need to be particularly aware of the operating status when the monitoring target device is operating normally. , Etc. disorder is possible to monitor efficiently monitored devices can be confirmed complicated the situation when there is a possibility of the occurrence, an excellent effect.
[0040]
Also, in the present invention, when it is determined that a failure may have occurred and the response request is transmitted at the second time interval, when a normal response is received continuously for a predetermined number of times or more, the monitoring is performed. The target device determines that the target device has returned to normal, changes the transmission interval of the response request to the first time interval, and notifies that the operating state is normal. It is possible to easily determine whether or not the performance is temporarily reduced or the performance is only temporarily reduced.
[0041]
Further, in the present invention, when it is determined that a normal response cannot be received from the monitoring target device, for example, a response request is transmitted to another device in the same communication environment as the monitoring target device, and another response is transmitted. By also monitoring the operating status of the device, it is possible to determine whether the fault that may have occurred is only a single monitored device or the entire communication environment. Excellent effects, such as the ability to perform a recovery operation.
[Brief description of the drawings]
FIG. 1 is an explanatory view conceptually showing a monitoring system of the present invention.
FIG. 2 is a block diagram showing a configuration of various devices used in the monitoring system of the present invention.
FIG. 3 is a flowchart showing a monitoring process of the operation monitoring device of the present invention.
FIG. 4 is a flowchart showing another device monitoring subroutine of the operation monitoring device of the present invention.
[Explanation of symbols]
10 Operation monitoring device
20 Monitoring target device
30 Management device
40 Other monitored devices (other devices)
NW communication network
PG computer program
REC recording medium

Claims (6)

A monitoring method using an operation monitoring device that transmits a response request for requesting a response indicating the operating state of the monitored device to the monitored device and monitors the operating status based on receiving a response to the transmitted response request,
The operation monitoring device,
Sending a response request at a preset first time interval,
Determine whether a response indicating normal operation has been received,
A monitoring method characterized by changing a time interval for transmitting a response request to a second time interval shorter than the first time interval when it is determined that a response indicating normal operation has not been received. A response request for requesting a response indicating the operating status of the monitored device is transmitted to the monitored device, the operating status is monitored based on a response to the transmitted response request, and the monitored operating status is notified. In operation monitoring equipment,
Means for transmitting a response request at a preset first time interval;
Means for determining whether a response indicating normal operation has been received,
If it is determined that a response indicating normal operation has not been received,
Means for transmitting notification information for notifying that the operation state of the monitored device is abnormal to a predetermined destination,
Means for changing the transmission interval of the response request to a second time interval shorter than the first time interval. Means for counting the number of times a response indicating normal operation has been continuously received for the response request transmitted at the second time interval;
Means for determining whether the counted number is continuous for a predetermined number of times or more,
When it is determined that a normal response has been received continuously for the predetermined number of times or more,
Means for changing the transmission interval of the response request to a first time interval;
3. The operation monitoring apparatus according to claim 2, further comprising: means for transmitting notification information for notifying that the operation state is normal to a predetermined transmission destination. If it is determined that a response indicating normal operation has not been received from the monitored device, the device further includes means for transmitting a response request to another device associated with the monitored device. The operation monitoring device according to claim 2 or 3, which performs the operation monitoring. An operation monitoring device according to any one of claims 2 to 4,
A monitored device to be monitored by the operation monitoring device;
A monitoring device that receives notification information transmitted from the operation monitoring device. A computer program for causing a computer to transmit a response request for requesting a response indicating the operation status of the monitored device to the monitored device, and to monitor the operation status based on receiving a response to the transmitted response request,
Causing the computer to send a response request at a preset first time interval;
Causing the computer to determine whether a response indicating normal operation has been received;
And changing the transmission interval of the response request to a second time interval shorter than the first time interval when the computer determines that the response indicating the normal operation has not been received. Computer program to do.

Images