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:
Aug. 03, 2021
Filed:
Jan. 29, 2016
Applicant:
Hewlett Packard Enterprise Development Lp, Houston, TX (US);
Inventors:
Tianzheng Wang, Palo Alto, CA (US);
Hideaki Kimura, Palo Alto, CA (US);
Assignee:
Hewlett Packard Enterprise Development LP, Houston, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
G06F 16/23 (2019.01); G06F 16/00 (2019.01); G06F 9/46 (2006.01);
U.S. Cl.
CPC ...
G06F 16/2343 (2019.01); G06F 9/466 (2013.01); G06F 16/00 (2019.01); G06F 16/2308 (2019.01); G06F 16/2315 (2019.01); G06F 16/2358 (2019.01);
Abstract
Hybrid concurrency control in a database transaction is disclosed. A contention value associated with a database object is read. The contention value is dynamically updated based on access patterns of the database object. If the contention value indicates the database object is under high contention, a pessimistic concurrency control mechanism is applied to the database object. An optimistic concurrency control mechanism is applied to the database object if the contention value does not indicate the database object is under high contention.