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Failure recovery in a parallel-processing database system

Invented by: David Bayliss
Delray Beach, FL

Richard Chapman
Boca Raton, FL

Jake Smith
London, GB

Ole Poulsen
Bend, OR

Gavin Halliday
Royston, GB

Nigel Hicks
London, GB Applicant: Name City State Country Type Bayliss

Originally Assigned to: LexiNexis Risk Data Management Inc.
Boca Raton, FL
[Now assigned to . . .]

Issued:2014-03-18
Filed:2002-11-14
Application No:10293475
Examined by:Kim; Paul

A system and method for failure recovery in a multiple processing node system are described herein. Each node can be adapted to store a backup copy of its database portion and/or results to disk storage or memory of at least one other node. In the event of a failure of a node, the replacement node can be adapted to transfer or copy the backup copy of the database portion of the failed node from the failed node's neighbors to the replacement node's disk storage or memory in between database operations. Before the transfer or copy of the backup copy is completed, the replacement node can be adapted to perform database operations in part on the portion of the backup copy the replacement node has already received and in part on the backup copy stored at the neighboring node(s).

[pdf] U.S. Pat. No. 8,676,843

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