公开(公告)号：US20250130977A1

公开(公告)日：2025-04-24

申请号：US18987427

申请日：2024-12-19

Applicant: Beijing Baidu Netcom Science Technology Co., Ltd.

Inventor： Biao Cao ,  Jiwei Xiong ,  Zhihui Yin

IPC: G06F16/16 ,  G06F16/11

Abstract: The present disclosure provides a data operation method, apparatus, device, and storage medium, which relates to the technical fields of distributed file system, in particular, to the technical fields of multi-version concurrency control and log-structured merge tree. The specific implementation scheme is as follows: obtaining a plurality of operation records on at least one piece of data in a file system; determining a target operation record of target data in the plurality of operation records, where the target operation record is a deletion record, and the target operation record is a latest operation record of the target data; and deleting at least one version of the target data in the file system according to the target operation record.

公开(公告)号：US20230012881A1

公开(公告)日：2023-01-19

申请号：US17933191

申请日：2022-09-19

Applicant: BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.

Inventor： Zhihui Yin ,  Biao Cao

IPC: G06F16/21 ,  G06F16/23

Abstract: A method for reading data includes: receiving a data reading request; acquiring a data writing file in response to determining that the data reading request triggers a reading-writing conflict event, in which the data writing file includes a writing version number and transaction information; obtaining an adjusted writing version number by adjusting the writing version number based on the request version number in response to determining that the data reading request satisfies a version adjustment condition based on the request version number, the writing version number and the transaction information; and performing data reading based on the data reading address and the adjusted writing version number.