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:
Feb. 16, 2021
Filed:
May. 01, 2019
Amazon Technologies, Inc., Seattle, WA (US);
Abhijit Chaudhuri, Bangalore, IN;
Mahesh H. Dhabade, Bangalore, IN;
Ameya Shrinivas Sakhalkar, Pune, IN;
Visakh Sakthidharan Nair, Bangalore, IN;
Vinesh Reddy Sunku, Khammam, IN;
Preeti Gupta, Bangalore, IN;
Sonia Goyal, New Delhi, IN;
Rahul Kamalkishore Agrawal, Bangalore, IN;
Shashank Vilas Likhite, Pune, IN;
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
Methods, systems, and computer-readable media for live migration for highly available data stores are disclosed. Migration of a data set from a first data store to a second data store is initiated and comprises a backfill of records to the second data store. During a window of time before the migration is complete, a read request for a first record is received. A response representing an authoritative version of the first record is generated using a copy of the first record in the first data store and a copy of the first record in the second data store. A write request for a second record is received during the window of time. A lock is acquired for the second record, and the write request is performed using a copy of the second record in the first data store and a copy of the second record in the second data store.