JP3543548B2 - How to execute network management service - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method network management services running, especially in computer network management system, by limiting the computer and network resources for the management, network management service execution method to be able to ensure the performance of the entire system About.
[0002]
[Prior art]
With the expansion of client functions in computer network systems, the importance of client management has increased, and mechanisms for individually managing clients have emerged. This generally has the following configuration.
(1) A network management system in a computer network
(2) The management manager operates on the management computer, the management client operates on the managed computer, and the management manager and the management client operate in association with each other to execute the management service.
(3) The management manager instructs the management client to execute a management service.
(4) The management client has a configuration including a parent process that receives an instruction to execute the management service and a child process that actually performs the management service.
(5) Upon receiving the management service execution instruction from the management manager, the parent process of the management client generates different types of child processes corresponding to the type of the management service.
(6) The parent process of the management client receives the management service execution result of the generated child process, and returns a response to the management manager.
[0003]
[Problems to be solved by the invention]
The problem here is that, for example, an increase in the number of types of management services, such as collecting configuration information of a managed computer on a management computer or distributing files from the management computer to the managed computer, is increasing. And, as the number of clients increases,
(1) The pressure on the computer resources such as the memory and the disk storage device due to the execution of the program by the management client increases to the extent that execution of other applications cannot be ignored.
(2) The communication volume between the management manager and the management client increases.
It is two points.
The present invention has been made in view of the above circumstances, and has as its object to solve the above-described problems in the conventional technology, to avoid pressure on computer resources, and to reduce the communication between the management manager and the management client. It is an object of the present invention to provide a network management service execution method capable of preventing an increase in the amount of communication.
[0004]
[Means for Solving the Problems]
An object of the present invention is to provide a system in which a management computer 101 having a management manager 102 and a managed computer 104 having a management client 105 are connected via a network 103, wherein a parent process 106 of the management client 105 The upper limit value of the resource amount for the operation of the entire management client including the process 107 is held in advance according to the priority of each management service, and when an execution instruction of the management service to which the priority is added is received. Comparing the resource amount required for executing the management service with the upper limit of the resource amount held in accordance with the priority, and if the required resource amount is lower than the upper limit value, a child executing the management service is executed. Activate the process 107 and, if the required resource amount exceeds the upper limit value, extend the execution of the management service. It is achieved by a network management service execution method characterized by requesting the manager 102.
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION
In the network management service execution method according to the present invention, the time variation of the management overhead on the computer network is suppressed by limiting the resources secured by the management client 105 at the time of executing the management service to a certain value or less. As a result, the performance of the entire system can be ensured.
Note that the parent process 106 of the management client 105 holds the type of management service, that is, the average execution time of the management service according to the type of the child process 107. Regarding the process 107, the elapsed time from the start is measured. At this time, when the above-mentioned request for postponing the execution of the management service when the required resource amount exceeds the upper limit value is made to the management manager 102, it is expected that the required resource amount becomes lower than the upper limit value and can be secured. Notify the time.
Accordingly, the management manager 102 can efficiently retry the management service execution request to the management client 105.
[0006]
Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings.
FIG. 1 is a diagram showing an outline of a computer network to which the present invention is applied.
The management computer 101 executes a management manager 102 for computer network management. The management manager 102 manages the managed computer 104 connected via the network 103. For this management, the management client 105 is executed on the managed computer 104.
[0007]
The management manager 102 and the management client 105 realize a management service while performing communication via the network 103. Examples of management services include:
(1) Collect configuration information of a managed computer in a management computer.
(2) Distribute files from the management computer to the managed computers.
and so on.
[0008]
FIG. 2 is a diagram illustrating an outline of an internal configuration of the management client 105 in the managed computer 104.
The process configuration of the management client 105 includes a parent process 106 for controlling the execution of the management service in the management client 105 and a child process 107 for executing each management service. The parent process 106 is started manually or automatically when the system is started. The child process 107 is activated by the activation from the parent process.
[0009]
FIG. 3 is a block diagram of the parent process 106 and the child process 107.
The management-manager communication unit 301 receives a management service execution instruction message from the management manager 102, transmits a result response, transmits an execution postponement request, and the like.
The management service execution control unit 302 determines whether the management service can be executed and manages the execution state.
The child process activation / monitoring processing unit 303 monitors the activation and termination of the process based on the child process activation request from the management service execution control unit 302.
[0010]
The child process activation / monitoring processing unit 303 monitors the activation and termination of the process based on the child process activation request from the management service execution control unit 302.
Further, the real time acquisition processing unit 305 acquires a timer interrupt in the computer and notifies the management service execution control unit 302 that a certain time has elapsed.
The management service execution unit 304 in the child process 107 executes an actual management service such as collecting configuration information in the computer and receiving a file from the management manager.
[0011]
Next, the flow of processing in the present embodiment configured as described above will be described with reference to FIGS. First, the overall operation will be described.
When the management manager 102 transmits a management service execution instruction to the management client 105, the management manager communication unit 301 of the management client parent process 106 receives the instruction.
The format of the execution instruction message includes an execution request service name field and a priority field as shown in FIG.
[0012]
Here, it is assumed that the execution request service name is defined in advance between the management manager and the management client. The priority is a numerical value indicating the priority of starting the management service, and a higher value indicates a higher priority.
The message communication procedure between the management manager and the management client may be of any type as long as it is a procedure for transmitting the message shown in FIG. 4 transparently.
Upon receiving the message, the manager communication unit 301 passes the content to the management service execution control unit 302.
[0013]
The management service execution control unit 302 performs matching processing between the received execution request service name and a service definition table 501 described later, and determines a child program name to be started.
FIG. 5 shows an example of the service definition table. The definition of each field of the service definition table 501 is as follows.
[0014]
(1) Service name: Service name that matches the name included in the execution request from management manager 102
(2) Program name: Name of the program that executes the corresponding service
(3) Average execution time: average time required to execute the corresponding program
(4) Memory required for execution: the maximum amount of temporary storage required to execute the program
(5) Required disk capacity at execution: the maximum capacity of the secondary storage device required to execute the corresponding program
Next, the management service execution control unit 302 checks whether or not the child program to be started is within the allowable execution range. First, the priority received from the management manager is matched with a resource amount upper limit value definition table 601 to be described later, and an allowable upper limit of the capacity of the execution time memory and the execution time disk is obtained.
FIG. 6 shows an example of the resource amount upper limit value definition table. The resource amount upper limit value definition table 601 is defined such that the higher the priority, the higher the upper limit.
[0016]
Next, the status of the currently running process is confirmed using the running process management table 701 described later.
FIG. 7 shows an example of the running process management table 701. The definition of each field of the running process management table 701 is as follows.
(1) Name of running program: program name of service definition table 501
(2) Running process name: Name of the process that executes the program
(3) Process start time: Time when the process was started
(4) Elapsed time: Elapsed time from the time when the process was started to the present. The update of the elapsed time field is performed by the management service execution control unit 302 based on the current time notification from the real time acquisition processing unit 305.
[0017]
The update algorithm of the elapsed time field of the management service execution control unit 302 and the average execution time field of the service definition table 501 will be described with reference to FIG.
When the real time update event is notified from the real time acquisition processing unit 305 to the management service execution control unit 302 (step 901), the “elapsed time” field of each entry of the running process management table 701 of the management client is set. , (Current time)-(process start time) (step 902).
[0018]
Next, the process termination event notification from the child process activation / monitoring unit 303 is checked (step 903). If there is an event notification, first, the value of the elapsed time is extracted from the corresponding entry of the running process management table 701 of the management client (step 904).
Next, the average execution time field and the execution count field of the service definition table 501 are updated based on this value (step 905).
[0019]
The value of the average execution time field is calculated by (average execution time value x execution count value + elapsed time value) / (execution count value + 1), and the calculation of the execution count field is calculated by (execution count value + 1). It is calculated by the following equation.
At the end of the process, the corresponding entry in the active process management table 701 is deleted (step 906).
The management service execution control unit 302 obtains the amount of resources currently used based on the running process management table 701 and the service definition table 501.
[0020]
In this embodiment, the used memory capacity is 25 MB (10 MB for Prog2 + 15 MB for Prog3), and the disk capacity is 300 KB (100 KB for Prog2 + 200 KB for Prog3).
Based on the result, a difference from the allowable upper limit value is obtained, and further, it is checked whether or not the execution request program can be started. In this embodiment, since the upper limit of the memory capacity is 40 MB, the program that can be started is 15 MB (= 40 MB−25 MB). However, since the requested Prog4 needs 20 MB, the program cannot be started.
[0021]
In this case, the management service execution control unit 302 issues an execution postponement request to the management manager 102 via the management manager communication unit 301.
FIG. 8 shows the format of the execution postponement request message. The expected start time field value in this message is calculated by the following method.
(1) A program that can secure resources required for starting a requested program by releasing resources
(2) Among the programs satisfying the above conditions, a program having the smallest value of (average program execution time-elapsed time) is selected.
[0022]
In the case of the present embodiment:
(1) Both Prog2 and Prog3 can secure the resources necessary for starting the requested Prog4 by releasing resources.
(2) Average execution time of program-elapsed time: Prog2 ... 30 sec, Prog3 ... 220 sec
As a result, the value of the estimated startable time field becomes 30.
[0023]
If the management manager 102 changes the execution request to one of the following conditions, if the same determination method is used, both the memory and the disk do not exceed the upper limit values, so that the process can be started.
(1) Execution request service name = service S1
(2) Priority = 2
If the process can be activated, the management service execution control unit 302 passes the name of the program to be activated to the child process activation / monitoring processing unit 303.
[0024]
The child process activation / monitoring processing unit 303 activates the process having the received program name and confirms normal activation (when the management service execution unit 304 starts operating), and then updates the process name and the process activation time to the management service execution control unit 302. Pass to.
The management service execution control unit 302 updates the running process management table 701 based on this.
Further, the child process activation / monitoring processing unit 303 continuously monitors the termination of the child process, and when the process is terminated, notifies the management service execution control unit 302 together with the termination result.
[0025]
The management service execution control unit 302 sends a service end response to the management manager via the management manager communication unit 301.
According to the above embodiment, the amount of resources secured by the management client 105 can always be kept below a certain value, and the execution priority of the management service can be set. Further, the management manager 102 can efficiently retry the management client 105 for the management service execution request.
It should be noted that the above embodiment is an example of the present invention, and it goes without saying that the present invention is not limited to this.
[0026]
【The invention's effect】
As described above in detail, according to the present invention, it is possible to avoid pressure on computer resources such as a memory and a disk storage device, and to prevent an increase in the amount of communication between the management manager 102 and the management client 105. This has a remarkable effect that a network management client activation method can be realized.
[Brief description of the drawings]
FIG. 1 is a diagram showing an outline of a computer network to which the present invention is applied.
FIG. 2 is a diagram illustrating an outline of an internal configuration of a management client 105 in a managed computer 104 according to the embodiment.
FIG. 3 is a block diagram of a parent process 106 and a child process 107 inside the management client 105 according to the embodiment.
FIG. 4 is a diagram illustrating an example of a management service execution request message from the management manager 102 to the management client 105 according to the embodiment.
FIG. 5 is a diagram illustrating an example of a service definition table 501 of the management client 105 according to the embodiment.
FIG. 6 is a diagram illustrating an example of a resource amount upper limit value definition table 601 of the management client 105 according to the embodiment.
FIG. 7 is a diagram illustrating an example of an ongoing process management table 701 of the management client 105 according to the embodiment.
FIG. 8 is a diagram illustrating an example of an execution postponement request message from the management client 105 to the management manager 102 according to the embodiment.
FIG. 9 is a flowchart of a process of updating an elapsed time field of the management service execution control unit 302 and an average execution time field of the service definition table 501 according to the embodiment.
[Explanation of symbols]
101 Management Computer 102 Management Manager 103 Network 104 Managed Computer 105 Management Client 106 Parent Process 107 Child Process 301 Management Manager Communication Unit 302 Management Service Execution Control Unit 303 Child Process Activation / Monitoring Processing Unit 304 Management Service Execution Unit 305 Time acquisition processing unit 501 Service definition table 601 Resource upper limit value definition table 701 Active process management table

Claims (2)

A management computer having a management manager for instructing the management client to execute a management service ,
A managed computer having a management client including a parent process that controls execution of a management service based on a management service execution instruction from the management manager and a child process that executes an individual management service based on an instruction from the parent process Is a method for executing a network management service of a system connected via a network ,
The parent process of the management client previously holds an upper limit of a plurality of resource amounts according to the priority of the management service ,
The management manager, when instructing the management client to execute a management service, adds information indicating a priority of the management service,
The parent process, when receiving the execution instruction of the management service , compares the resource amount necessary for the execution of the management service with the upper limit value of the resource amount held according to the priority of the management service ,
If the required resource amount is below the upper limit, start a child process that executes the management service,
Further, if the required resource amount exceeds the upper limit value, a request is made to the management manager to postpone the execution of the management service, and a network management service execution method is provided. The parent process of the management client is
It holds the average execution time of the management service according to the type of management service,
Measure the elapsed time from the start of the child process started when receiving the management service execution instruction from the management manager,
If the required resource amount exceeds the upper limit, from the measurement results of the average execution time and the elapsed time, calculate the expected time until the required resource amount can be secured below the upper limit,
2. The network management service execution method according to claim 1, wherein when the management service execution postponement request is issued to the management manager, the calculated expected time is also notified.

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