公开(公告)号：US20190317872A1

公开(公告)日：2019-10-17

申请号：US16455087

申请日：2019-06-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei YU ,  Huijun LIU

IPC: G06F11/20 ,  G06F16/17 ,  G06F16/11 ,  G06F3/06 ,  G06F16/00

Abstract: A database cluster architecture based on dual port solid state disk (SSD) is disclosed. The database cluster including a plurality of nodes and a plurality of dual port solid state disks (SSDs). Each dual port SSD of the plurality of dual port SSDs is connected to a unique pair of nodes and each node in the unique pair of nodes is connected to a unique pair of dual port SSDs. A first node of the plurality of nodes writes a transaction log to a first dual port SSD, a second node connected to the first dual port SSD acquires the transaction log from the first dual port SSD and operates a database process to recover data according to the transaction log when the first node crashes.

公开(公告)号：US20170083419A1

公开(公告)日：2017-03-23

申请号：US15365728

申请日：2016-11-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei YU ,  Huijun LIU

IPC: G06F11/20 ,  G06F3/06 ,  G06F17/30

CPC classification number: G06F11/2094 ,  G06F3/0619 ,  G06F3/064 ,  G06F3/065 ,  G06F3/067 ,  G06F3/0688 ,  G06F11/1471 ,  G06F11/202 ,  G06F11/2023 ,  G06F11/2046 ,  G06F16/00 ,  G06F16/113 ,  G06F16/1734 ,  G06F2201/80 ,  G06F2201/805 ,  G06F2201/82

Abstract: The present disclosure provides a data management method for a database cluster including a first dual port SSD, a second dual port SSD, a first node, a second node, and a third node, where the first dual port SSD is connected to the first node and the second node, and the second dual port SSD is connected to the second node and the third node; and the first node writes a transaction log to the first dual port SSD, when the first node crashes, the second node acquires the transaction log from the first dual port SSD, and operates, according to the transaction log, data that is stored in the first node, so that, the second node or the third node can use a dual port SSD to read log information of the crashed node, and replace the first node to provide a service externally.