Distributed database system and a non-transitory computer readable medium
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United States of America Patent
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Jan 22, 2019
Grant Date -
Apr 9, 2015
app pub date -
Dec 17, 2014
filing date -
Jun 22, 2012
priority date (Note) -
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Abstract
A distributed database system accesses data by using management information managed by another data store, and accelerates a timing to update a data record having high access frequency. Thereby the latest data can be easily acquired. A distributed database system according to one embodiment comprises a distributed database including a plurality of nodes that stores data, and a data management device that manages the data stored in the plurality of nodes. Each of the nodes comprises a data storage unit that stores the data related to a time stamp representing a time when the data is stored and a key identifying the data, a data update unit that updates the data, a data sending unit acquires the data stored in the data storage unit, and a data update promotion unit that requests the data update unit to update the acquired data when the acquired data is not latest data.
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