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:
Mar. 04, 2025
Filed:
Mar. 31, 2023
Amazon Technologies, Inc., Seattle, WA (US);
Ramesh Shankar, Redmond, WA (US);
Raman Mittal, Kirkland, WA (US);
Minsoo Oh, Seattle, WA (US);
Andrew Willis Callahan, Seattle, WA (US);
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
Interruptions in an ordered replication stream can be received from in a database. A database instance of the ordered replication stream may detect missing log records and then evaluate log records that are subsequently received to determine whether to update a portion of an in-memory data structure for performing database requests using a comparison of sequence numbers of the last update corresponding to the portion of the in-memory data structure indicated in the log record and the last update recorded for the portion of the in-memory data structure. For comparison indicating valid portions, the log record can be used and for comparison indicating invalid portions, the portion of the in-memory data structure can be made unavailable.