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:
Jul. 19, 2022
Filed:
Jan. 09, 2018
Lendingclub Bank, National Association, Lehi, UT (US);
David Taubler, Oakland, CA (US);
Hyunsuk Han, San Ramon, CA (US);
Yana Nikitina, San Francisco, CA (US);
Abhijit Karpe, Fremont, CA (US);
Raul Acevedo, San Francisco, CA (US);
LendingClub Bank, National Association, Lehi, UT (US);
Abstract
Techniques are described herein to handle situations in which multiple systems can change different copies of the same data item. Optimistic locking and time stamps are used to ensure consistency between the systems without incurring the performance penalties associated with two-phase commit. Specifically, when propagating a change to a data item from a first system to a second system, the second system compares the first system's 'pre-update' value of the data item with its current value of the data item. If the pre-update value from the first system does not match the current value in the second system, then a conflict has occurred. Upon detecting a conflict, both systems use timestamps associated with the respective conflicting changes to determine which conflicting change 'wins'. The winning change is applied by all systems whose changes did not win.