Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Vedvyas Shanbhogue0
Date of Patent
February 13, 2007
0Patent Application Number
100003350
Date Filed
December 4, 2001
0Patent Primary Examiner
Patent abstract
Application software on a fault tolerant system having an active engine and a standby engine is upgraded. As part of the upgrade, the system determines if the active engine and the standby engine are executing different versions of the application software. The system sends a description of work units from the active engine to the standby engine and sends database activities from the active engine to the standby engine.
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