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.:
Date of Patent:
Apr. 23, 2013
Filed:
Sep. 27, 2011
Weinan Wang, Bellevue, WA (US);
Joseph E. Magerramov, Seattle, WA (US);
Maxym Kharchenko, Bellevue, WA (US);
Min Zhu, Bellevue, WA (US);
Aaron D. Kujat, Issaquah, WA (US);
Alessandro Gherardi, Bellevue, WA (US);
Jason C. Jenks, Lynnwood, WA (US);
Weinan Wang, Bellevue, WA (US);
Joseph E. Magerramov, Seattle, WA (US);
Maxym Kharchenko, Bellevue, WA (US);
Min Zhu, Bellevue, WA (US);
Aaron D. Kujat, Issaquah, WA (US);
Alessandro Gherardi, Bellevue, WA (US);
Jason C. Jenks, Lynnwood, WA (US);
Amazon Technologies, Inc., Reno, NV (US);
Abstract
Disclosed are various embodiments for facilitating data redistribution in database sharding. A database is maintained that is horizontally partitioned into a set of first buckets using modulo-based assignments. A fixed number of the first buckets are stored in each of multiple physical data stores. The database is repartitioned into a set of second buckets using modulo-based assignments. The number of second buckets in the set is a multiple of the sum of a positive integer and the quantity of the physical data stores. The data in the database is unmoved between the physical data stores by repartitioning.