公开(公告)号：US20190129811A1

公开(公告)日：2019-05-02

申请号：US16234095

申请日：2018-12-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jinwei Zhu ,  Qingqing Zhou ,  Pinggao Zhou

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

Abstract: A method for processing query fault, where a database server receives a query statement and generates a corresponding query plan tree including multiple layers of operators in a pipeline relationship, and each layer includes operation symbols having logical relationship with each other. The server executes the query statement according to the query plan tree, extracts intermediate status information of a faulty operator when a fault occurs in a process of executing the query statement, updates operation symbols of the faulty operator and a logical relationship among the operation symbols according to the query plan tree and the intermediate status information to obtain a reconstructed query plan tree, and continues to execute the query statement according to the reconstructed query plan tree after the fault is recovered.

公开(公告)号：US12032572B2

公开(公告)日：2024-07-09

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 ,  G06F11/14 ,  G06F11/34 ,  G06F16/2455 ,  G06F16/25

CPC classification number: G06F16/24542 ,  G06F11/1423 ,  G06F11/3433 ,  G06F16/2455 ,  G06F16/256

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.

公开(公告)号：US11461195B2

公开(公告)日：2022-10-04

申请号：US17101033

申请日：2020-11-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jinwei Zhu ,  Qingqing Zhou ,  Pinggao Zhou

IPC: G06F11/00 ,  G06F11/14 ,  G06F16/2453 ,  G06F16/2455

Abstract: A method for processing query fault, where a database server receives a query statement and generates a corresponding query plan tree including multiple layers of operators in a pipeline relationship, and each layer includes operation symbols having logical relationship with each other. The server executes the query statement according to the query plan tree, extracts intermediate status information of a faulty operator when a fault occurs in a process of executing the query statement, updates operation symbols of the faulty operator and a logical relationship among the operation symbols according to the query plan tree and the intermediate status information to obtain a reconstructed query plan tree, and continues to execute the query statement according to the reconstructed query plan tree after the fault is recovered.

公开(公告)号：US20210073085A1

公开(公告)日：2021-03-11

申请号：US17101033

申请日：2020-11-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jinwei Zhu ,  Qingqing Zhou ,  Pinggao Zhou

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

Abstract: A method for processing query fault, where a database server receives a query statement and generates a corresponding query plan tree including multiple layers of operators in a pipeline relationship, and each layer includes operation symbols having logical relationship with each other. The server executes the query statement according to the query plan tree, extracts intermediate status information of a faulty operator when a fault occurs in a process of executing the query statement, updates operation symbols of the faulty operator and a logical relationship among the operation symbols according to the query plan tree and the intermediate status information to obtain a reconstructed query plan tree, and continues to execute the query statement according to the reconstructed query plan tree after the fault is recovered.