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公开(公告)号：US20220300477A1
公开(公告)日：2022-09-22
申请号：US17837496
申请日：2022-06-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Mingjian Que , Chuanting Wang , Junjie Wang
IPC: G06F16/22 , G06F9/50 , G06F16/2455 , G06F16/27
Abstract: A data read/write method includes: establishing a first connection to a client, determining a first tablespace corresponding to the first connection, and determining a first node corresponding to the first connection or the first tablespace in a plurality of nodes, where the first connection receives a read/write request from the client; loading data in the first tablespace to a memory in the first node, and processing a read/write request on the first connection using a first working thread, where the first working thread is generated by a processor in the first node.
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公开(公告)号：US10979520B2
公开(公告)日：2021-04-13
申请号：US15979951
申请日：2018-05-15
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Lin Huang , Chuanting Wang
Abstract: Embodiments of the present invention relate to the database field, and in particular, to a data transmission method and apparatus, so as to reduce overheads for data transmission between nodes in a distributed database and lighten network load. In the embodiments of the present invention, a DN determines a column that has a distribution rule of parameters in the column; the DN determines, according to a data type of the parameters of the column and the distribution rule of the parameters in the column, a compression algorithm corresponding to the column; the DN compresses the column using the compression algorithm; and the DN sends a compressed column to a target node. In this way, the overheads for the data transmission between the nodes are reduced, and the network load is lightened.
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公开(公告)号：US09449041B2
公开(公告)日：2016-09-20
申请号：US14323546
申请日：2014-07-03
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yuanyuan Nie , Huijun Liu , Chuanting Wang
IPC: G06F17/30
CPC classification number: G06F17/30371 , G06F17/30362
Abstract: A database system lock operation method is provided that includes: acquiring, by a first processing node, a lock operand of a target lock; using, by the first processing node, the target lock to perform a lock acquiring operation on a target data object; when the lock operand meets a condition for a successful lock acquiring operation, determining, by the first processing node, that the lock acquiring operation is successful, and updating a value of a data bit that is in the lock operand and used to indicate a state of the target lock on the first processing node to a value that is used to indicate that the state of the target lock on the first processing node is lock held. Accordingly, the embodiments of the present invention further disclose a node device. The embodiments of the present invention can improve performance of a database system.
Abstract translation: 提供了一种数据库系统锁操作方法，包括：由第一处理节点获取目标锁的锁操作数; 由所述第一处理节点使用所述目标锁来对目标数据对象执行锁获取操作; 当锁定操作数满足成功锁定获取操作的条件时，由第一处理节点确定锁获取操作成功，并且更新在锁操作数中的数据位的值并用于指示状态 的第一处理节点上的目标锁的状态被锁定到用于指示第一处理节点上的目标锁的状态被锁定的值。 因此，本发明的实施例进一步公开了节点设备。 本发明的实施例可以提高数据库系统的性能。
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公开(公告)号：US09430198B2
公开(公告)日：2016-08-30
申请号：US14753232
申请日：2015-06-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dongwang Sun , Jijun Wen , Chuanting Wang
CPC classification number: G06F8/41 , G06F9/45504 , G06F17/30312 , G06F21/6227
Abstract: A data processing method and apparatus, which relate to the computer field and are capable of effectively improving scalability of a database system. The data processing method includes: receiving source code of an external routine, where the source code of the external routine is compiled by using an advanced programming language; compiling the source code to obtain intermediate code, where the intermediate code is a byte stream identifiable to a virtual machine on any operating platform; converting, according to an instruction set on the operating platform, the intermediate code into machine code capable of running on the operating platform; and storing the machine code to a database. The data processing method and apparatus provided by the embodiments of the present invention are used to process data.
Abstract translation: 一种与计算机领域相关并且能够有效地提高数据库系统的可扩展性的数据处理方法和装置。 数据处理方法包括：接收外部例程的源代码，其中通过使用高级编程语言编译外部例程的源代码; 编译源代码以获得中间代码，其中中间代码是可在任何操作平台上为虚拟机标识的字节流; 根据操作平台上的指令，将中间代码转换成能够在操作平台上运行的机器代码; 并将机器代码存储到数据库。 由本发明实施例提供的数据处理方法和装置用于处理数据。
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公开(公告)号：US11829260B2
公开(公告)日：2023-11-28
申请号：US17525415
申请日：2021-11-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chuanting Wang , Zhongchu Zhu , Yuhui Xing
CPC classification number: G06F11/1469 , G06F11/1425 , G06F11/1471 , G06F16/21
Abstract: The present disclosure relates to fault repair methods for a database system. In one example method, when working normally, a master node backs up, to a global buffer pool (GBP) node by using a data transmission protocol with a low latency and a high throughput (for example, a remote direct memory access (RDMA) protocol), a modified page generated because of transaction modification. When the master node is faulty, a standby node does not need to replay all remaining replay logs that are not replayed, but only needs to replay redo logs corresponding to a page that does not exist on the GBP node and pages that are not sequentially arranged and obtain the pages.
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Patent Agency Ranking
6.发明申请LOCK MANAGEMENT METHOD AND SYSTEM, METHOD AND APPARATUS FOR CONFIGURING LOCK MANAGEMENT SYSTEM 审中-公开锁定管理方法和系统，配置锁定管理系统的方法和装置公开(公告)号：US20160132364A1
公开(公告)日：2016-05-12
申请号：US14995789
申请日：2016-01-14
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wenlong Huang , Haoyang Che , Chuanting Wang
CPC classification number: G06F9/526 , G06F9/46 , G06F9/466 , G06F9/50 , G06F17/30362
Abstract: A lock management method and system, and a method and an apparatus for configuring a lock management system is provided. A corresponding level of a lock management system is set for each service execution node according to the number of service execution nodes included in a distributed system, the number of system instances on all service execution nodes, the number of handling processes on all the service execution nodes, and a delay of access of each service execution node to a central control node of the distributed system. At least one lock manager is allocated to each service execution node separately according to the level, which is corresponding to each service execution node, of the lock management system. A lock level context is configured for each lock manager, where the lock level context is used to determine an adjacent lock manager of each lock manager.
Abstract translation: 提供了一种锁管理方法和系统，以及用于配置锁管理系统的方法和装置。 根据分布式系统中包括的服务执行节点的数量，所有服务执行节点上的系统实例的数量，所有服务执行上的处理过程的数量，为每个服务执行节点设置相应级别的锁管理系统 节点，以及每个服务执行节点到分布式系统的中央控制节点的访问延迟。 至少一个锁管理器根据与锁管理系统的每个服务执行节点相对应的级别分别分配给每个服务执行节点。 为每个锁管理器配置锁级别上下文，其中锁级别上下文用于确定每个锁管理器的相邻锁管理器。
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公开(公告)号：US11868333B2
公开(公告)日：2024-01-09
申请号：US17837496
申请日：2022-06-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Mingjian Que , Chuanting Wang , Junjie Wang
IPC: G06F15/16 , G06F16/22 , G06F16/27 , G06F16/2455 , G06F9/50
CPC classification number: G06F16/2282 , G06F9/5088 , G06F16/24552 , G06F16/27
Abstract: A data read/write method includes: establishing a first connection to a client, determining a first tablespace corresponding to the first connection, and determining a first node corresponding to the first connection or the first tablespace in a plurality of nodes, where the first connection receives a read/write request from the client; loading data in the first tablespace to a memory in the first node, and processing a read/write request on the first connection using a first working thread, where the first working thread is generated by a processor in the first node.
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公开(公告)号：US20190108174A1
公开(公告)日：2019-04-11
申请号：US16204526
申请日：2018-11-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Peiliang Du , Chuanting Wang , Lin Huang
IPC: G06F16/2455 , G06F16/22
Abstract: A data system comprising a primary server and a secondary server, where the primary server obtains a first partition instruction and a second partition instruction, partition data in a first data table according to a first partition key to obtain a first partition table, and send the second partition instruction to the secondary server. The first partition instruction includes a first partition key, and the second partition instruction includes a second partition key, which is different from the first partition key. The second partition instruction is for triggering the secondary server to partition data in a second data table on the secondary server according to the second partition key to obtain a second partition table, which is the same as the first data table.
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9.发明授权公开(公告)号：US10042678B2
公开(公告)日：2018-08-07
申请号：US14995789
申请日：2016-01-14
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wenlong Huang , Haoyang Che , Chuanting Wang
Abstract: A lock management method and system, and a method and an apparatus for configuring a lock management system is provided. A corresponding level of a lock management system is set for each service execution node according to the number of service execution nodes included in a distributed system, the number of system instances on all service execution nodes, the number of handling processes on all the service execution nodes, and a delay of access of each service execution node to a central control node of the distributed system. At least one lock manager is allocated to each service execution node separately according to the level, which is corresponding to each service execution node, of the lock management system. A lock level context is configured for each lock manager, where the lock level context is used to determine an adjacent lock manager of each lock manager.
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公开(公告)号：US20150301810A1
公开(公告)日：2015-10-22
申请号：US14753232
申请日：2015-06-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dongwang Sun , Jijun Wen , Chuanting Wang
CPC classification number: G06F8/41 , G06F9/45504 , G06F17/30312 , G06F21/6227
Abstract: A data processing method and apparatus, which relate to the computer field and are capable of effectively improving scalability of a database system. The data processing method includes: receiving source code of an external routine, where the source code of the external routine is compiled by using an advanced programming language; compiling the source code to obtain intermediate code, where the intermediate code is a byte stream identifiable to a virtual machine on any operating platform; converting, according to an instruction set on the operating platform, the intermediate code into machine code capable of running on the operating platform; and storing the machine code to a database. The data processing method and apparatus provided by the embodiments of the present invention are used to process data.
Abstract translation: 一种与计算机领域相关并且能够有效地提高数据库系统的可扩展性的数据处理方法和装置。 数据处理方法包括：接收外部例程的源代码，其中通过使用高级编程语言编译外部例程的源代码; 编译源代码以获得中间代码，其中中间代码是可在任何操作平台上为虚拟机标识的字节流; 根据操作平台上的指令，将中间代码转换成能够在操作平台上运行的机器代码; 并将机器代码存储到数据库。 由本发明实施例提供的数据处理方法和装置用于处理数据。
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