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    Time series data management method, device, and apparatus
    1.
    发明授权
    Time series data management method, device, and apparatus 有权

    公开(公告)号：US11269902B2

    公开(公告)日：2022-03-08

    申请号：US16420482

    申请日：2019-05-23

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Weijie Ou ,  Zhibiao Chen

    IPC: G06F16/24 ,  G06F16/2458 ,  G06F16/22 ,  G06F17/17

    Abstract: This application discloses a time series data management method, device, and apparatus. A device receives a data query request, wherein the data query request includes an identifier of the first object. The device obtains first time series data corresponding to the first object in a target data table according to the identifier of the first object. The device determines a second storage location that is in a location index table and that is stored in a first storage location corresponding to the first object. Further, the device obtains second time series data of the first object and a third storage location corresponding to the second time series data that are stored in the second storage location, The device also obtains other time series data corresponding to the first object according to the third storage location.

    METHOD AND APPARATUS FOR ACCESSING DATABASE AND DATABASE APPLICATION SYSTEM
    2.
    发明申请
    METHOD AND APPARATUS FOR ACCESSING DATABASE AND DATABASE APPLICATION SYSTEM 审中-公开
    用于访问数据库和数据库应用系统的方法和装置

    公开(公告)号：US20130262426A1

    公开(公告)日：2013-10-03

    申请号：US13903724

    申请日：2013-05-28

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Zhibiao Chen ,  Yongfei Peng ,  Yongxiang Mao

    IPC: G06F17/30

    CPC classification number: G06F16/24 ,  G06F16/2365

    Abstract: A method for accessing a database is disclosed, which includes: receiving a modification operation request for shared data in the database which is mapped into a process address space; decomposing the modification operation request to a preset number of atomic operation sequences; invoking atomic operation interfaces according to an execution order of the various atomic operation sequences; and accessing the shared data in the database, which is mapped into the process address space, through atomic operations which are provided by the atomic operation interfaces. An apparatus for accessing a database and a database application system are also disclosed.

    Abstract translation: 公开了一种访问数据库的方法，包括：接收映射到进程地址空间的数据库中共享数据的修改操作请求; 将修改操作请求分解为预设数量的原子操作序列; 根据各种原子操作序列的执行顺序调用原子操作界面; 并通过由原子操作接口提供的原子操作来访问映射到进程地址空间的数据库中的共享数据。 还公开了一种用于访问数据库和数据库应用系统的装置。

    Log-structured storage method and server
    3.
    发明授权
    Log-structured storage method and server 有权

    公开(公告)号：US10430341B2

    公开(公告)日：2019-10-01

    申请号：US15692818

    申请日：2017-08-31

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Vinoth Veeraraghavan ,  Zhibiao Chen

    IPC: G06F12/08 ,  G06F12/0864 ,  G06F16/901 ,  G06F16/10 ,  G06F16/18

    Abstract: A log-structured storage method and a server, where the method includes obtaining a current incremental update of an object when the object is updated, wherein a current version of the object is stored in a log-structured storage area of the server, determining whether there is a previous incremental update of the object stored in the log-structured storage area, writing the current incremental update as a latest incremental update in the log-structured storage area when there is no previous incremental update of the object stored in the log-structured storage area such that the utilization of memory can be improved.

    Remote procedure call method for network device and network device
    5.
    发明授权
    Remote procedure call method for network device and network device 有权

    公开(公告)号：US10831574B2

    公开(公告)日：2020-11-10

    申请号：US16202790

    申请日：2018-11-28

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Shuo Lian ,  Zhibiao Chen

    IPC: G06F9/54 ,  H04L29/06 ,  G06F9/455 ,  G06F9/445

    Abstract: A remote procedure call (RPC) method for a network device and the network device, where a client sends an RPC request to an RPC core, where the RPC request requests to call a service deployed on a server, the RPC core receives the RPC request from the client and forwards the RPC request to the server when the RPC core determines that a dynamic service registry stores valid registration information of the server, the server receives the RPC request from the RPC core, and provides a corresponding service for the client according to the RPC request.

    Method and apparatus for querying data in database
    6.
    发明授权
    Method and apparatus for querying data in database 有权

    公开(公告)号：US10055437B2

    公开(公告)日：2018-08-21

    申请号：US14665937

    申请日：2015-03-23

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Qingli Ma ,  Zhibiao Chen

    IPC: G06F17/30 ,  G06F17/00

    CPC classification number: G06F16/2237 ,  G06F16/217 ,  G06F16/275 ,  G06F16/9535

    Abstract: A method and an apparatus for querying data in a database, and the method includes: receiving a query instruction; determining a status of each block index in a block index set prestored in a global memory of a GPU; when each block index in the global memory of the GPU is in an asynchronous state, starting one or more GPU processes to filter the block index in the global memory of the GPU according to a query condition, to obtain a first block index query result; and determining a final data query result according to the first block index query result. In this method, querying is performed by directly using a GPU process, thereby omitting a process of repeatedly copying partitioned data from a memory in the prior art, shortening query time, and improving query efficiency.

    Log-Structured Storage Method and Server
    8.
    发明申请
    Log-Structured Storage Method and Server 审中-公开

    公开(公告)号：US20180137055A1

    公开(公告)日：2018-05-17

    申请号：US15692818

    申请日：2017-08-31

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Vinoth Veeraraghavan ,  Zhibiao Chen

    IPC: G06F12/0864 ,  G06F17/30

    CPC classification number: G06F12/0864 ,  G06F16/10 ,  G06F16/1805 ,  G06F16/9014

    Abstract: A log-structured storage method and a server, where the method includes obtaining a current incremental update of an object when the object is updated, wherein a current version of the object is stored in a log-structured storage area of the server, determining whether there is a previous incremental update of the object stored in the log-structured storage area, writing the current incremental update as a latest incremental update in the log-structured storage area when there is no previous incremental update of the object stored in the log-structured storage area such that the utilization of memory can be improved.

    Method and apparatus for concurrent access of mixed services
    9.
    发明授权
    Method and apparatus for concurrent access of mixed services 有权

    公开(公告)号：US09904701B2

    公开(公告)日：2018-02-27

    申请号：US14713739

    申请日：2015-05-15

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Weijie Ou ,  Zhibiao Chen

    IPC: G06F17/30

    CPC classification number: G06F17/30371 ,  G06F17/30345 ,  G06F17/30348 ,  G06F17/30477 ,  G06F17/30592

    Abstract: Embodiments of the present invention provide a method and an apparatus for concurrent access of mixed services, and relate to the field of database applications, so as to implement concurrent read/write access to a database service, allow lock-free concurrency of query and modification operations, lower operation complexity, reduce overheads, reduce a waste of memory, and improve data timeliness. The method includes: dividing a data table to obtain at least one data set; breaking down a modification or query operation on the data table into at least one point operation; determining whether to-be-processed data on which point operation processing is performed is distributed in multiple columns; and if the to-be-processed data is distributed in multiple columns, determining whether the to-be-processed data is in a same data set, and performing a modification or query operation on the to-be-processed data according to a result of the determining.

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