Global avoidance of hang states via priority inheritance in multi-node computing system
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United States of America Patent
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Apr 23, 2013
Grant Date -
Oct 29, 2009
app pub date -
Apr 28, 2008
filing date -
Apr 28, 2008
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Abstract
Systems, methods, and other embodiments associated with avoiding resource blockages and hang states are described. One example computer-implemented method for a clustered computing system includes determining that a first process is waiting for a resource and is in a blocked state. The resource that the first process is waiting for is identified. A blocking process that is holding the resource is then identified. A priority of the blocking process is compared with a priority the first process. If the priority of the blocking process is lower than the priority of the first process, the priority of the blocking process is increase. In this manner the blocking process can be scheduled for execution sooner and thus release the resource.
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