公开(公告)号：US11132265B2

公开(公告)日：2021-09-28

申请号：US16448581

申请日：2019-06-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Guangwei Cheng ,  Bo Shang ,  Tian Qi

IPC: G06F11/14 ,  G06F16/27 ,  G06F16/00

Abstract: Embodiments of this application provide a method and an apparatus for multi-replica data restoration. The method is applied to a distributed database and includes: when a first page in replica data of a first node has a fault, obtain N latest LSNs in data log information of a second node that corresponds to a first page identifier. The first page is any page that is in the replica data of the first node and that has a fault. The first node further determines a node corresponding to a largest LSN in the N latest LSNs in the data log information of the second node that corresponds to the first page identifier is a third node. Then the first node performs data restoration on the first page in the replica data of the first node according to replica data of the third node.