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. 27, 2018
Filed:
Mar. 16, 2016
Applicant:
Amazon Technologies, Inc., Seattle, WA (US);
Inventor:
Paul Connell, North Vancouver, CA;
Assignee:
Amazon Technologies, Inc., Seattle, WA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/08 (2016.01); G06F 12/0815 (2016.01); G06F 12/0804 (2016.01); G06F 12/0868 (2016.01);
U.S. Cl.
CPC ...
G06F 12/0815 (2013.01); G06F 12/0804 (2013.01); G06F 12/0868 (2013.01); G06F 2212/1032 (2013.01); G06F 2212/281 (2013.01); G06F 2212/313 (2013.01); G06F 2212/608 (2013.01);
Abstract
A consistent caching service for managing data consistency between a cache system and backing store is provided. The consistent caching service compares an origin token and a parity token associated with the cached copy of the data item to determine consistency of the data item. The origin and parity tokens may be generated by an operation that caused population of the data item to the cache. The parity token may be invalidated by a write operation of the data item, thus causing a mismatch between the two tokens.