| 摘要 |
PROBLEM TO BE SOLVED: To reduce loads on a standby system computer and a network in a failure recovery method for switching a processing to a standby system computer when a failure occurs in an active system computer. SOLUTION: A computer system, which receives data to which timestamp information is appended in a chronological order and processes the received data by registered queries, includes: the active system computer for processing the received data; and the standby system computer for processing the received data instead of the active system computer upon occurrence of a failure. The active system computer processes the received data by the respective queries according to a predefined sequence, and transmits processing results obtained from the received data by the respective queries to the standby system computer as intermediate data on a query basis at a predetermined timing. The standby system computer restores the data by processing the received data and the intermediate data when a failure occurs in the active system computer. COPYRIGHT: (C)2010,JPO&INPIT
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