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:
Jun. 21, 2016
Filed:
May. 07, 2014
National Tsing Hua University, Hsinchu, TW;
Hung-Chang Hsiao, Tainan, TW;
Chi-Tsun Liao, New Taipei, TW;
Chia-Ping Tsai, Kaohsiung, TW;
Yeh-Ching Chung, Hsinchu, TW;
NATIONAL TSING HUA UNIVERSITY, Hsinchu, TW;
Abstract
A method for recovering system status consistently to a designed recovering time point in a distributed database, wherein the distributed database comprises a primary server and multiple region servers, comprising: when the region servers detect a change of system status, analyzing an event for the change to generate an event log and storing the event log to the database; after a preset condition, the region servers generate a snapshot respectively; when the primary server receives the instruction to recover the system status to a designed time point, indicates the region servers to implement: reading the event log and snapshots stored in region servers; finding the snapshot closest to the designed time point; finding the event log and snapshot corresponding to an time interval between the time recorded in the snapshot and the designed time point to recover the system status to the designed time point.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile