NON-STOP TRANSACTION PROCESSING SYSTEM

摘要

[PROBLEMS] In a business system, it is important to reduce the time of a temporary service interrupt due to failure of a server or a network. The current failure countermeasure is generally performed by a failure detection and a handover. However, the failure detection requires at least 10 seconds to several minutes and the service interrupt time is longer than this, which causes a significant problem. [MEANS FOR SOLVING PROBLEMS] Suggested is a system for retransmitting process to a backup server firm from a client if no response is received for a certain time without waiting for the failure detection. A transaction process mechanism includes a transaction start process mechanism combining an exclusive control using the process authority Token and data matching and a commit process mechanism combining the commit enabled/disabled judgment based on the distributed agreement and the update data replication. This mechanism realized a system capable of reducing the service stop time upon failure occurrence to a time of such an order that the service does not stop when viewed from the client.