Method and apparatus for realizing application high availability
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United States of America Patent
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Apr 30, 2013
Grant Date -
Aug 23, 2012
app pub date -
May 2, 2012
filing date -
Mar 23, 2009
priority date (Note) -
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Abstract
A method, apparatus, and computer program product for realizing application high availability are provided. The application is installed on both a first node and a second node, the first node being used as an active node, and the second node being used as a passive node. The method includes: monitoring access operations to files by an application during its execution on the active node; replicating the monitored updates to the file by the application from the active node to a storage device accessible to the passive node if the application performs updates to a file during the access operations; sniffing the execution of the application on the active node; and switching the active node to the second node and initiating the application on the second node in response to sniffing a failure in the execution of the application on the active node.
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