| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a failover system which realizes high reliability and high availability. <P>SOLUTION: The present invention provides a system for failover comprising at least one client selectively connectable to one of at least two interconnected servers via a network connection. In a normal state, one of the servers is designated as a primary server when connected to the client and the remainder of the servers are designated as backup servers when not connected to the client. The servers are configured to process messages using at least one service that is identical in each of the servers. A library of the service in the primary server is configured to make external calls and return processed results to the service, and simultaneously to forward the processed results to the backup servers. The service in the backup servers performs processing using the forwarded messages without making the external calls. <P>COPYRIGHT: (C)2013,JPO&INPIT |
