Timestamp-based system and method for serializing lazy updates in a distributed database
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United States of America Patent
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Dec 31, 2002
Grant Date -
Jul 4, 2002
app pub date -
Sep 9, 1999
filing date -
Sep 9, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system for, and method of, ensuring serialization of lazy updates in a distributed database described by a directed acyclic copy graph. In one embodiment, the system includes: (1) a timestamp module that creates a unique timestamp for each of the lazy updates and (2) a propagation module, associated with the timestamp module, that employs edges of the directed acyclic copy graph to propagate the lazy updates among replicas in the distributed database according to said unique timestamp and ensure the serialization.
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