The cluster system controlled programming, the node which the cluster system and the cluster

摘要

PPROBLEM TO BE SOLVED: To provide a cluster system-control program which performs a function which saves DRC (duplicate reply cache) information without increasing cost required for development, and to provide a cluster system and a cluster system-control method therefor. PSOLUTION: When a request from a client is received, a result of processing the request and DRC information corresponding to the request are atomically stored by a journal file system. When failover occurs, processing for transferring the DRC which is saved to the journal file system from one cluster mode to the other cluster mode is executed. PCOPYRIGHT: (C)2010,JPO&INPIT