Grid quorum
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United States of America Patent
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-
Nov 20, 2007
Grant Date -
Oct 28, 2004
app pub date -
Apr 25, 2003
filing date -
Apr 25, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention is a grid quorum system, method and apparatus. In a cluster of resources in a computing grid, a resource locking method can include acquiring a temporally limited lock on a grid service in the computing grid. Upon expiration of the temporally limited lock, a renewal of the temporally limited lock can be requested. Subsequently, the temporally limited lock can be renewed if a renewal has been granted by the grid service in response to the request. Notably, the renewing step can include determining whether the cluster has been partitioned into a plurality of sub-clusters. If the cluster has been partitioned, a parent sub-cluster can be identified and the temporally limited lock can be renewed only if a quorum exists in the parent sub-cluster.
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