| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a system for monitoring a normal operation of a service among a plurality of servers that earlier and further completely detects a failure state of a service by monitoring not only a failure of a service but also a normal operation state of a service in a service system on the premise of operation of a redundant configuration, and its method. <P>SOLUTION: The service system constructed by a plurality of the servers is composed so that communication is regularly executed to the servers opposite to each other with a UDP or a TCP and each sever in the service system is allowed to have a service normal-operation function for judging normalcy/abnormality of a service operation state by contents of a communication packet so as to mutually execute monitoring of the normal operation of a service with a redundant-configuration server. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
