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    DATABASE PROCESSING METHOD AND APPARATUS
    1.
    发明申请
    DATABASE PROCESSING METHOD AND APPARATUS 有权

    公开(公告)号：US20220365933A1

    公开(公告)日：2022-11-17

    申请号：US17860906

    申请日：2022-07-08

    Applicant: Huawei Technologies Co., Ltd. ,  Tsinghua University

    Inventor： Guoliang LI ,  Xiang YU ,  Di YANG

    IPC: G06F16/2453 ,  G06F16/22

    Abstract: A database processing method and an apparatus are provided, and may be applied to a database system. A tree structure is used to represent a join order and used as an input of a neural network, and different first attribute matrices are allocated to different brother nodes in the input tree structure. This helps the neural network comprehensively learn information about the join order, obtain representation information capable of differentiating the join order from another join order, and predict costs of the join order accurately based on the obtained representation information of the join order. Then, an optimizer selects a join order with lowest costs for a query statement based on the costs predicted by a cost prediction module.

    Device Control Method and Device
    2.
    发明申请
    Device Control Method and Device 审中-公开
    设备控制方法和设备

    公开(公告)号：US20160316338A1

    公开(公告)日：2016-10-27

    申请号：US15103731

    申请日：2013-12-10

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Zijun LI ,  Guoliang LI

    IPC: H04W4/02 ,  H04W36/08

    CPC classification number: H04W4/027 ,  H04W4/021 ,  H04W4/80 ,  H04W36/08 ,  H04W84/12 ,  H04W88/08

    Abstract: Embodiments of the present disclosure provide a device control method and a device. The method includes the following steps: receiving, by a terminal, a radio signal sent by a first access point device (S101), determining a corresponding first signal strength according to the radio signal sent by the first access point device (S102), acquiring a second signal strength, corresponding to the first access point device, of a first controlled device and a third signal strength, corresponding to the first access point device, of a second controlled device (S103), and when determining, according to the first signal strength, the second signal strength, and the third signal strength, that a distance between the first controlled device and the terminal is less than a distance between the second controlled device and the terminal, controlling the first controlled device and the second controlled device (S104).

    Abstract translation: 本公开的实施例提供了一种设备控制方法和设备。 该方法包括以下步骤：由终端接收由第一接入点设备发送的无线电信号（S101），根据第一接入点设备发送的无线电信号确定相应的第一信号强度（S102），获取 对应于第一受控设备的第一接入点设备的第二信号强度和对应于第一受控设备的第一接入点设备的第三信号强度（S103），以及当根据第一信号 强度，第二信号强度和第三信号强度，第一受控设备和终端之间的距离小于第二受控设备和终端之间的距离，控制第一受控设备和第二受控设备（S104 ）。

    MICROSERVICE COMPONENT-BASED DATABASE SYSTEM AND RELATED METHOD
    3.
    发明申请
    MICROSERVICE COMPONENT-BASED DATABASE SYSTEM AND RELATED METHOD 有权

    公开(公告)号：US20220067044A1

    公开(公告)日：2022-03-03

    申请号：US17525400

    申请日：2021-11-12

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Guoliang LI ,  Sihao LI ,  Jinyu ZHANG ,  Yahui DONG ,  Pinggao ZHOU ,  Shifu LI

    IPC: G06F16/2453 ,  G06F16/2455 ,  G06F11/34 ,  G06F11/14 ,  G06F16/25

    Abstract: Some embodiments provide a microservice component-based database system, to split a database kernel into microservice components that can be enabled and run independently and whose functions are decoupled, and implement flexible database assembly and management. The microservice component can be deployed based on a system resource and a service form. The components can collaborate with each other by using a lightweight communication mechanism. A component manager provides capabilities such as registration and deregistration of a service component, component resource management, component fault tolerance, and component upgrade, to implement dynamic management of the component in a running environment. A job scheduler selects, based on a job submitted by a user, an optimal execution path including a plurality of components, and performs resource management and scheduling in a job execution process, to implement load balancing and high availability.

    METHOD, APPARATUS, AND SYSTEM FOR ESTIMATING DATABASE MANAGEMENT SYSTEM PERFORMANCE
    4.
    发明申请
    METHOD, APPARATUS, AND SYSTEM FOR ESTIMATING DATABASE MANAGEMENT SYSTEM PERFORMANCE 有权

    公开(公告)号：US20220414075A1

    公开(公告)日：2022-12-29

    申请号：US17897008

    申请日：2022-08-26

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Guoliang LI ,  Tianqing WANG ,  Shifu LI ,  Lingtao LI ,  Kun LI

    IPC: G06F16/21 ,  G06F16/242 ,  G06F16/2453

    Abstract: Disclosed is a method for estimating database management system performance, in which a performance change ratio of a DBMS can be determined once a first knob group, a second knob group, and a data volume of active data in data managed by the DBMS are obtained, without actually configuring the second knob group in the DBMS, executing a job by the DBMS, and then observing the execution. In other words, the performance change ratio of the DBMS can be estimated without interacting with the DBMS. DBMS security can be ensured, performance measurement approaches are provided for self-tuning and self-management of the DBMS, and reliable and stable running of the DBMS is ensured.

    METHOD AND APPARATUS FOR DETERMINING CONFIGURATION KNOB OF DATABASE
    5.
    发明申请
    METHOD AND APPARATUS FOR DETERMINING CONFIGURATION KNOB OF DATABASE 有权

    公开(公告)号：US20220067008A1

    公开(公告)日：2022-03-03

    申请号：US17525435

    申请日：2021-11-12

    Applicant: Huawei Technologies Co., Ltd. ,  TSINGHUA UNIVERSITY

    Inventor： Guoliang LI ,  Shifu LI ,  Xuanhe ZHOU ,  Bo GAO

    IPC: G06F16/21 ,  G06F16/2453 ,  G06N3/04 ,  G06K9/62

    Abstract: A method for determining a configuration knob of a database is disclosed, and may be applied to a database management system. In this method, vectorization coding is performed on a query statement, to obtain a target feature vector of the query statement, and then a configuration knob set for determining the database is determined based on two aspects of double-state information: the target feature vector and current status information of the database (101). The configuration knob set is used to execute N query statements. The configuration knob of the database (101) may be dynamically determined based on the query statement and the current status information of the database (101), so that good performance of the database (101) in a case of different workload requirements, for example, performance in aspects of a delay and a throughput, can be ensured.

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