作者: Stephen John Vivian , Nitin Yashwant Karkhanis , Sean Connolly , Michael Seward Harvey , Gary Allison
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摘要: A graphical user interface based method of configuring automatic failover from a primary database system to standby that is coupled the by network. Also network an observer process independent systems and initiates process. The periodically pings determine whether necessary. permits specify secondary systems, configure observer, conditions under which may occur enable failover. context created inputs GUI stored in persistent storage belonging systems. If Observer's stale, Observer fetches system's context.