System and method for writing data dependent upon multiple reads in a distributed database
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United States of America Patent
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Feb 22, 2011
Grant Date -
Aug 20, 2009
app pub date -
Feb 19, 2008
filing date -
Feb 19, 2008
priority date (Note) -
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Abstract
An improved system and method for writing data dependent upon multiple reads in a distributed database is provided. A client may read several data records and may then send a request to a database server to perform a transaction to write a data record dependent upon multiple data records read. A database server may receive the request specifying a transaction to write a data record dependent upon multiple data records read and may perform the transaction by latching a master data record to be written and validating the data records the write depends upon. The multiple data records upon which the write depends may be validated by verifying the multiple data records are current versions of the data records stored in the distributed database. Data intensive applications may use this transaction type in large scale distributed database systems to provide stronger consistency without significantly degrading performance and scalability.
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