Dynamic distributed memory locking in a computer network
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United States of America Patent
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-
Feb 18, 2003
Grant Date -
N/A
app pub date -
Aug 23, 1999
filing date -
Aug 23, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and system for dynamic distributed memory locking in a computer network. According to the method, a local lock process executing on a node receives from an application program a lock request for exclusive access to a memory location. The lock process identifies a first lock process executing on any node of the network that is currently a designated lock manager for granting locks for the particular memory location for which the lock was requested. Subsequently, the local lock process requests from the designated lock manager a lock for the particular memory location. Finally, the local lock process notifies the requesting application program when a lock has been granted by the lock manager. The method also includes designating a local lock process executing on a selected node as the lock manager when no lock manager is currently designated for the particular memory location for which a lock has been requested. The application program and the local lock process can both be executing on the same selected node, but can also be executing on separate nodes.
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