| 摘要 |
PROBLEM TO BE SOLVED: To determine the generation sequence of logs generated at each node by using a counter with high accuracy included in the node without depending upon an external time. SOLUTION: When an event is generated at a node 10, a log record generating means 14 newly prepares a log record and includes the value of a counter 12. Also, the log record generating means 14 periodically refers to the value of a counter 22 of a node 20 being a reference counter and includes the value in the log record. When the value of the counter 22 is not referred to, the value of the counter 22 is obtained with a calculation from the value of the counter 12 of a log record with which the value of the counter 22 is referred to and the value of the counter 22 by using a ratio of the value of the counter 12. COPYRIGHT: (C)2004,JPO&NCIPI
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