JP2006018350A - Remote operation system and reliability improvement method for computer remote operation application - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To restart a remote operation application without the necessity for a person to go person to a remote place, and to maintain the reliability of remote operation, when the remote operation application cannot be remotely operated. <P>SOLUTION: A restart program of the remote operation application is mounted to a remote operation target server to execute the restart program of the remote operation target server from a job management server. When the remote operation becomes impossible, an instruction to execute the restart program is issued to the remote operation target server capable of being not remotely operated from a remote operation client via the job management server, and the remote operation application of the remote operation target server capable of being not remotely operated is restarted. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to remote control of a computer connected to a network from another computer.

  There is an application for remotely operating a server device at a remote location from a client computer via a network. By using this remote operation application, it is possible to connect directly to a server from a client computer via a network without going to the location where each server is installed, against servers in remote locations or servers scattered in various locations. It is possible to operate the server as if operating.

  This operation method is described in Patent Document 1. By using this technology, when a server failure occurs, the client computer can monitor the server status, isolate the fault, stop the application, etc. without going to a remote location. It is possible to shorten the time.

  There are Patent Document 2, Patent Document 3, and the like as conventional techniques related to this technical field.

Japanese Patent Laid-Open No. 05-119955 Japanese Patent Laid-Open No. 11-259160 JP 2002-149437 A

  When the remote operation application is stopped due to some trouble, the remote operation becomes impossible. When the server device is in a remote location, it is necessary to go to a remote location to restart the remote operation application.

  According to the present invention, when the remote operation application is stopped due to some trouble and the remote operation becomes impossible, it is possible to restart the remote operation application and maintain the reliability of the remote operation without visiting a remote place. Objective.

  Further, there are Patent Document 2 and Patent Document 3 as application restart methods, but in the known example, the corresponding application is constantly monitored, which is a load on the server. However, since it is sufficient that the remote operation application operates normally at the time of remote operation, there is no need to constantly monitor, and using the method of the publicly known example causes a problem that the server is loaded more than necessary. .

  In the present invention, for a remote operation application that does not require constant monitoring, a remote operation worker executes a restart instruction for the remote operation application only when remote operation and inoperability are recognized at the start of remote operation. The purpose is to avoid server processing performance degradation by simplifying the restart program and reducing the server load required for constant monitoring.

  A remote operation application restart program is installed on the remote operation target server so that the restart program can be executed from the job management server. If the remote operation target server is disabled, issue a command to execute the restart program from the remote operation client to the remote operation target server that has become remote operation disabled via the job management server. Restart the remote operation application of the remote operation target server that has become inoperable.

  Even when the remote operation application is stopped due to some trouble and remote operation becomes impossible, the remote operation application is restarted from the job management server, so there is no need to go to a remote location, and the remote operation application is restored. Time was shortened and the reliability of remote server operation was improved.

Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.
FIG. 1 is a system configuration block diagram showing the best mode for carrying out a remote operation method to which the present invention is applied. In FIG. 1, 1 is a remote operation client, 2 is a remote operation target server, 3 is a job management server, 4 is each server, and a network to which the remote operation client is connected. In the best mode for carrying out the present invention, the remote operation client and the remote operation target server are configured one by one. However, a plurality of remote operation clients may actually exist. The network is basically a TCP / IP network, but each server and client may be connected via a long-distance line network such as a public line or a dedicated line.

  The remote operation client 1 has a remote operation application 11, and the remote operation target server 2 cooperates with the remote operation application 21 implemented in the remote operation target server 2 to remotely connect the remote operation target server 2. Operation is possible. The remote operation client 1 has a job management application 12 and executes instructions such as job registration, deletion, job execution, and the like to the job control application 31 installed in the job management server 3. Can do.

  The remote control target server 2 can be remotely operated from a remote operation client by a remote operation application 21. The remote control target server 2 has a job execution program 23, and can start a job registered in advance by receiving a command from a job control application 31 installed in the job management server 3. . Further, the remote control target server 2 has a restart program 22, and the remote operation application 21 can be restarted by executing the restart program 22.

  The job management server 3 has a job control application 31 and receives an instruction from the job management application 12 installed in the remote operation client 1 to perform job registration, deletion, job execution, and the like. Also, a job execution command is issued to the job execution program 23 of the remote operation target server 2.

  The operation when the remote operation is disabled will be described with reference to FIG. When a remote operator confirms that remote operation is impossible during remote operation or at the start of remote operation (101), the remote operation target server is transferred from the job management application 12 of the remote operation client 1 to the job control application 31 of the job management server 3. The execution instruction of the second restart program 22 is issued (102).

  In the job management server 3, the job control application 31 receives the execution instruction of the restart program 22 (103), and the job control application 31 issues the execution instruction of the restart program 22 to the job execution program 23 of the remote operation target server 2. (104). The job execution program 23 of the remote operation target server 2 receives the execution instruction of the restart program 22 (105) and executes the restart program 22 (106). The restart program 22 restarts the remote operation application 21 (107), and the remote operation disabled state is restored.

Next, details of the operation of the restart program 22 will be described with reference to FIG.
When execution of the restart program 22 is started, the timer T1 starts counting (202). Next, the service status of the remote operation application 21 is confirmed. If the service is not activated, the service of the remote operation application 21 is activated (205). If the service is active, the service of the remote operation application 21 is stopped (207), and the service status is confirmed. Here, it is conceivable that the service cannot be stopped normally due to some trouble, and in order to detect this abnormal state, the restart program 22 is abnormally terminated when T1 = t (t is an arbitrary time) ( 208).

  After the service activation of the remote operation application 21 (205), the timer T2 starts counting (209), the service state of the remote operation application 21 is confirmed, and if the service is activated, the restart is completed (212). If the service activation cannot be confirmed even after an arbitrary time t has elapsed, it is determined that the service could not be activated due to some failure, and the process ends abnormally (214). The remote operation application 21 is restarted based on the flowchart as described above.

The system configuration block diagram showing the best mode for carrying out the present invention The flowchart which shows the restart procedure at the time of remote control impossible in FIG. Flowchart showing the operation of the restart program in FIGS.

Explanation of symbols

1 Remote operation client 2 Remote operation target server 3 Job management server 4 Network

Claims (2)

  In a remote operation system in which a remotely operated server equipped with a remote operation application, a client computer that performs remote operation, and a job management server that controls an application executed on the remotely operated server are connected via a network. A remote operation system comprising: means for mounting an operation application restart program; and means for restarting the remote operation application from the job management server when remote operation is impossible. A remote operation method in a system in which a remotely operated server equipped with a remote operation application, a client computer that performs remote operation, and a job management server that controls an application executed on the remotely operated server are connected via a network. A remote operation method comprising: mounting a restart program for a remote operation application, and executing the restart program when remote operation is impossible without constantly monitoring the state of the application.

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