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Implementation of Parallel Cache Management
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Support transaction parallelism of multiple OLTP
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A simple and effective approach to port sequential RDBMS to MPP and loosely coupled systems with shared-nothing architecture
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support parallel loading, parallel indexing, parallel insert/update and parallel recovery
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Major functionality
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keep track of the current ÒownshipÓ of a resource
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accepts requests for resources from application processes
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notifies the requesting process when a resource is available
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get exclusive access to a resource for a resource
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Note this can work fine in OLTP with many uncorrelated queries but will not work in scientific computing where ALL updates are correclated and reserving a resource introduces a sequential bottleneck
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