| 摘要 |
The system, method, and article of manufacture of the present invention provide a transparent variable state mirroring system. The transparent variable state mirroring system allows for hot standby redundancy support between entities. This is accomplished by providing a protocol and a supporting software architecture for an object-oriented messaging scheme used to maintain data synchronization between an active entity and a standby entity. As a result, the system, method, and article of manufacture of the present invention allow an application program executed by an active entity to manipulate (e.g., create, delete or update) application objects that contain state information (e.g., variables). When an application object is manipulated (e.g., created, deleted or updated) on the active entity, information is automatically transmitted via the messaging scheme from the active entity to a standby entity to update a corresponding application object on the standby entity.
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