公开(公告)号：WO2020082008A1

公开(公告)日：2020-04-23

申请号：PCT/US2019/057046

申请日：2019-10-18

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： LAHIRI, Tirthankar ,  REAMES, Martin ,  MAKINO, Kao ,  RAGHAVAN, Ananth ,  WANG, Chih-Ping ,  KOGAWA, Mutsumi ,  GARCIA, Jorge Luis Issa

IPC: G06F16/23

Abstract: In an in-memory database management system, non-volatile random access memories (NVRAMs) are used to store database data and control data. Because this data is stored in NVRAM, the data survives system failures. Recovery from a system failure may be accomplished more quickly by modifying the surviving data in NVRAM, rather than loading a checkpoint and applying uncheckpointed transactions needed to synchronize the database. Because in this form of recovery the database state that serves as the starting point for applying change records is stored in the NVRAM, this form of recovery is referred to herein as in-memory-based recovery.