The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8051422 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 01, 2011

Filed:

Aug. 30, 2007
Applicants:

Masaaki Narita, Yokohama, JP;

Shota Kumagai, Tokyo, JP;

Inventors:

Masaaki Narita, Yokohama, JP;

Shota Kumagai, Tokyo, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 9/46 (2006.01);
U.S. Cl.
CPC ...
Abstract

In order to improve the unbalance of loads imposed on individual database servers at the time of executing individual SQL processing phases, a management computer partitions an inputted query request into the processing phases which are units executable in parallel, calculates resource costs needed for executing the processing phases, assigns the processing phases to the logical computers on the basis of an access right to databases, calculates resource assignment ratios of the individual logical computers in correspondence with the resource costs for the processing phases assigned to the individual logical computers, and assigns assignable resources of a physical computer to the individual logical computers, the assignable resources being equivalent to resource assignment amounts corresponding to the resource assignment ratios.


Find Patent Forward Citations

Narita, Masaaki. (2011). Resource assignment method for query partioning based on processing cost of each partition (U.S. Patent No. 8051422). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8051422

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