Efficient replication of an expanded partial database
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United States of America Patent
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Nov 4, 2003
Grant Date -
Aug 29, 2002
app pub date -
Feb 27, 2001
filing date -
Feb 27, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
A replication occurs upon the re-configuration of a partial database to update an additional attribute of an object, and is divided into two sub-requests for replication. The first requests the new attribute from update sequence number zero and the second requests the existing attributes according to their known up-to-date vectors. To facilitate this request, a destination server sends an up-to-date vector table to a source server along with the request for replication. Because the existing attributes are requested from their known up-to-date vectors, rather than from update sequence number zero, this replication request results in less attributes being sent between servers and therefore, provides a more efficient replication.
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