Amazon Technologies, Inc.

Alessandro Gherardi

Joseph Elmar Magerramov

Jason Curtis Jenks

Weinan Wang

Maxym Kharchenko

Min Zhu

Aaron D Kujat

Aaron Drew Alexander Kujat

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.

Facilitating data redistribution in database sharding

Growing community of inventors

Bellevue, WA, United States of America

Alessandro Gherardi