公开(公告)号：US20170262351A1

公开(公告)日：2017-09-14

申请号：US15605501

申请日：2017-05-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhao Zhou ,  Tian Zhang ,  Wei Cheng

IPC: G06F11/14 ,  G06F17/30

Abstract: The present disclosure discloses a metadata recovery method and apparatus, the method includes: searching for a target node, where the target node has been damaged or index information recorded in the target node has been lost; and recovering the index information in the target node according to index information recorded in a related node, where the related node includes a parent node and a child node that are of the target node and an adjacent node belonging to a same layer as the node, and the index information includes brother index information pointing to the adjacent node belonging to the same layer as the node, parent index information pointing to the parent node of the node, and child index information pointing to the child node of the node. The present disclosure is mainly applied to a process of virtual data recovery.

公开(公告)号：US11128718B2

公开(公告)日：2021-09-21

申请号：US16023532

申请日：2018-06-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yanan Zhi ,  Wei Cheng

IPC: H04L12/26 ,  H04L29/08 ,  H04L12/911

Abstract: The method, an apparatus and a system for implementing a heartbeat mechanism, so as to reduce a quantity of heartbeat responses sent by a node, and reduce unnecessary resource consumption in a distributed database system. The solution includes: obtaining, a heartbeat request sent by a first node to a second node; recording, a first moment, wherein the first moment is a moment that the heartbeat request is received; querying, according to the identity of the second node from cached information, a second moment, wherein the second moment is a moment that the switching node most recently, where the cached information stores a correspondence between a moment at which the switching node receives a message and an identity of the node; and if an absolute value of a difference between the first moment and the second moment is less than a threshold, sending a heartbeat response to the first node.

公开(公告)号：US10423501B2

公开(公告)日：2019-09-24

申请号：US15605501

申请日：2017-05-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhao Zhou ,  Tian Zhang ,  Wei Cheng

IPC: G06F11/14 ,  G06F16/14 ,  G06F16/185 ,  G06F12/16

Abstract: The present disclosure discloses a metadata recovery method and apparatus, the method includes: searching for a target node, where the target node has been damaged or index information recorded in the target node has been lost; and recovering the index information in the target node according to index information recorded in a related node, where the related node includes a parent node and a child node that are of the target node and an adjacent node belonging to a same layer as the node, and the index information includes brother index information pointing to the adjacent node belonging to the same layer as the node, parent index information pointing to the parent node of the node, and child index information pointing to the child node of the node. The present disclosure is mainly applied to a process of virtual data recovery.

公开(公告)号：US12200412B2

公开(公告)日：2025-01-14

申请号：US18076676

申请日：2022-12-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wei Cheng

IPC: H04Q1/02 ,  G06F3/06 ,  G06F13/40

Abstract: A storage system includes N horizontal backplanes and a first mirror backplane. Each horizontal backplane includes a first controller and a second controller on a same plane. The N first controllers and the N second controllers of the storage system form a first column and a second column in a vertical direction. The first mirror backplane is perpendicular to the horizontal backplanes, a first side of the first mirror backplane is connected to the horizontal backplanes, and a second side is connected to the controllers. A second side of the first controller has N second mirror ports and N second heartbeat ports, and a first side of the second controller has N first mirror ports and N first heartbeat ports. Wiring on the first mirror backplane includes wiring that interconnects the first mirror port of the second controller to the second mirror port of the first controller.