JPH10222385A - Application execution control method on network and device therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To speed up a processing and to improve transmission efficiency by controlling the execution of application in accordance with the load situation of a network. SOLUTION: Client terminals 11 and 12 connected to the network 31 periodically collect load information on the network by a network load information collection means 13 and supply it to an average load factor calculation means 14. The average load rate calculation mens 14 calculates the average load factor of the network based on load information on the network for a prescribed period. An execution propriety judgment means 15 judges whether the average load rate exceeds a prescribed value or not. When the average load factor is not more than the prescribed value, a system is connected to one of servers 21-23 and application is executed. When thee average load factor is not less than the prescribed value, connection to the server is held unless the average load factor becomes not more than the prescribed value. Thus, the network does not become overloading.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an application execution process between a client terminal and a server terminal connected to the same network, and more particularly to a method suitable for application execution control such as performing batch processing.

[0002]

2. Description of the Related Art FIG. 3 shows a conventional application execution control device on a network.
Are server load information collecting means 2, average load factor calculating means 3, comparison selecting means 4, connecting means 5, application execution information collecting means 6, execution condition setting means 7, and executing means 8.
It has. 31 is a network and 21 to 23 are server terminals. A server terminal normally executes a plurality of jobs, and as the number of input jobs increases, the load on the CPU increases, leading to a decrease in execution speed. This load information can be obtained by an OS level system management command. Then, the client terminal 1 collects the load information from the server terminals 21 to 23 by the load information collecting means 2, obtains the average load rate of each server terminal from the load information collected by the average load rate calculating means 3, Means 4 selects the server terminal having the lightest average load factor, and connects the server terminal by connecting means 5.

When one of the server terminals (the server terminal 22 in the example of FIG. 3) is selectively connected in this way, the application execution information collecting means 6 causes the connected server terminal 2 to connect.
In step 2, it is checked whether an application execution license is available. If there is a free space in the application execution license, the execution condition setting means 7 instructs the execution means 8 to execute the application in real time. If there is no free space in the application execution license, the execution condition setting means 7 sets batch processing to the execution means 8 and instructs the execution means to execute the application when a free space is generated.

[0004]

A conventional application execution control device on a network pays attention only to the average load factor of each server as described above, and the server terminal with the lightest average load factor is automatically selected. Since the load of the network itself is not taken into account, especially when batch processing of applications is executed continuously on the network, the load exceeds the network performance. There is a problem that the network may be run and the processing speed is significantly reduced.

The present invention monitors the load status of the network itself and controls the execution of the application according to the load status of the network, thereby preventing the processing time from deteriorating due to network congestion and thereby increasing the processing speed. The purpose is to improve transmission efficiency.

[0006]

According to the present invention, in a client terminal, load information is collected from a connected network, an average load factor is calculated from the collected load information, and based on the calculated average load factor. In this case, whether or not the client terminal can execute the application is determined.

The load factor of the network can be obtained, for example, by measuring the number of packets actually flowing with respect to the number of packets that can flow on the network.

The client terminal connected to the network periodically measures and collects the load information (load rate) of the network by the load information collecting means based on, for example, a command at the OS level of the client terminal. The rate calculating means calculates an average load rate of the network for a certain period, and the feasibility determining means determines whether or not the average load rate exceeds a specified value (for example, 10%). If the average load factor is equal to or higher than the specified value, the network is not overloaded by suspending the connection to the server until the average load factor is equal to or lower than the specified value. Like that.

[0009]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 shows an example of the present invention.
1, 12 and a plurality of server terminals 21 to 23 are connected. Each of the client terminals 11 and 12 includes a network load information collection unit 13, an average load ratio calculation unit 14, an execution availability determination unit 15 and a connection unit 16, respectively. Each of the client terminals 11 and 12 transmits the load information 32 of the network 31 to the network load information collection unit 1.
3, the average load factor of the network 31 for a certain period is calculated by the average load factor calculating means 14 from the collected load information. The calculated average load factor is supplied to the execution possibility determination means 15, and it is determined whether or not the value exceeds a specified value. The connected server terminal checks whether or not the application execution license is available. If the application execution license is available and the average load factor of the network does not exceed the specified value, the server connection unit 16 uses one of the server terminals 21 to 23 for the license. When the average load factor of the network exceeds the specified value, the connection to the server terminal is temporarily suspended. FIG. 2 is a flowchart showing the operation of the present invention. When there is no application execution request (102), the network load information collecting means 13 periodically collects (101) the load information 32 of the network 31. When there is an application execution request (102), the average load calculation means 14 calculates a network average load factor based on the network load information for the immediately preceding fixed period (103), and the calculation result is defined by the execution availability determination means 15. It is determined whether or not the value is exceeded (104). If the calculation result exceeds the specified value, the application execution is suspended, and the network load information collection (101) and the calculation of the network average load ratio (102) are repeated until the network average load ratio falls below the specified value. When the calculation result of the average load ratio falls below the specified value, the execution possibility determination unit 15 connects the client terminal 11 to one of the server terminals 21 to 23 (105) and executes the application (10).
6) Yes. In the client terminal, network load information is repeatedly collected (101) by a command, and the above-mentioned procedures (102) to (106) are repeated every time there is an application execution request.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As a network 31, various networks such as Ethernet can be used. The client terminals 11 and 12 can be composed of personal computers and workstations, and the server terminals 21 to 23 can be composed of high-performance personal computers, workstations and dedicated file servers.

[0011]

According to the present invention, since the client terminal constantly collects the load status of the network as load information and controls the execution of the application in accordance with the load status of the network, processing exceeding the performance of the network is executed. The processing speed is increased and the transmission efficiency is improved.

[0012]

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of the present invention.

FIG. 3 is a block diagram showing a conventional example.

[Explanation of symbols]

 1, 11, 12 client terminal 2 server load information collecting means 3 average load rate calculating means 4 comparison and selecting means 5 connecting means 6 application execution information collecting means 7 execution condition setting means 8 executing means 13 network load information collecting means 14 average load rate Calculation means 15 Executability determination means 16 Connection means 21-23 Server terminal 31 Network 32 Network load information

Claims (2)

[Claims] When executing an application registered in a server from a client terminal connected to a network, the client terminal collects load information of the connected network and averages the network based on the collected load information. An application execution control method, comprising: calculating a load factor; and determining whether the client terminal can execute an application based on the calculated average load factor. 2. An application execution control apparatus for executing an application registered in a server from a client terminal connected to a network, wherein the client terminal periodically collects load information of the connected network; Means for calculating an average load rate of the network from the collected load information; execution permission / non-permission determination means for determining whether or not the client terminal can execute an application based on the average load rate; and Control means for controlling connection to the server.