Fast application notification in a clustered computing system
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United States of America Patent
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Jun 29, 2010
Grant Date -
Feb 17, 2005
app pub date -
Aug 12, 2004
filing date -
Aug 14, 2003
priority date (Note) -
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Abstract
With fast notification of changes to a clustered computing system, through which a number of events are published for system state changes, applications can quickly recover and sessions can quickly be rebalanced. When a resource associated with a service experiences a change in status, such as a termination or a start/restart, a notification event is immediately published. Notification events contain information to enable subscribers to identify, based on matching a session signature, the particular sessions that are affected by the change in status, and to respond accordingly. This allows sessions to be quickly aborted and ongoing processing to be quickly terminated when a resource fails, and allows fast rebalancing of work when a resource is restarted.
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