System using virtual replicated tables in a cluster database management system
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United States of America Patent
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Oct 4, 2011
Grant Date -
Feb 12, 2009
app pub date -
Oct 17, 2008
filing date -
Jul 8, 2004
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Abstract
A system for improved data sharing within a cluster of nodes having a database management system. The system defines a virtual replicated table as being useable in a hybrid of a shared-cache and shared-nothing architecture. The virtual replicated table is a physically single table sharable among a plurality of cluster nodes for data read operations and not sharable with other cluster nodes for data modification operations. Default owner node is assigned for each virtual replicated table to ensure the page validity and provide requested pages to the requesting node.
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