WO2017143929A1 - 云数据库资源扩展和服务扩展的方法和系统 - Google Patents

云数据库资源扩展和服务扩展的方法和系统 Download PDF

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Publication number
WO2017143929A1
WO2017143929A1 PCT/CN2017/073565 CN2017073565W WO2017143929A1 WO 2017143929 A1 WO2017143929 A1 WO 2017143929A1 CN 2017073565 W CN2017073565 W CN 2017073565W WO 2017143929 A1 WO2017143929 A1 WO 2017143929A1
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database
resource
service
node
database resource
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PCT/CN2017/073565
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English (en)
French (fr)
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王涵毅
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中兴通讯股份有限公司
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/23Updating
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/22Indexing; Data structures therefor; Storage structures
    • G06F16/2219Large Object storage; Management thereof
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/22Indexing; Data structures therefor; Storage structures
    • G06F16/2282Tablespace storage structures; Management thereof
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/24Querying
    • G06F16/242Query formulation
    • G06F16/2433Query languages
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/27Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor

Definitions

  • the present disclosure relates to mobile communication technologies, such as to a method and system for cloud database resource extension and service extension.
  • the data migration method is usually used to store the data.
  • the present disclosure provides a method and system for cloud database resource extension and service extension, which can complete database resource expansion and provide database service without implementing data migration when database resources are restricted.
  • the disclosure provides a cloud database resource expansion method, where the method includes:
  • the cloud database resource expansion method provided by the present disclosure can complete the database resource when the database resource is restricted by deploying the database resource in the server and acquiring the identification information of the database resource, and updating the database resource list according to the identification information. Extension.
  • the present disclosure provides a cloud database service extension method, the method comprising: determining a number According to the library resources, apply for database services according to business service needs;
  • a cloud database service extension method provided by an embodiment of the present disclosure provides a database service by requesting a database service according to a service service requirement, obtaining distribution information of a database resource providing a database service, and querying a corresponding database resource according to the distribution information to provide a database service. Can complete the extension of the database service when the database service is restricted, without data migration.
  • the disclosure provides a cloud database resource expansion system, where the system includes: a management node, a proxy node, and a database node;
  • the management node is configured to deploy database resources according to requirements of the business service
  • the proxy node is configured to obtain identification information of the database resource
  • the database node is configured to update a database resource list based on the identification information.
  • a cloud database resource expansion system provided by an embodiment of the present disclosure includes a management node, a proxy node, and a database node.
  • the database is deployed on the server, and the identification information of the database resource is acquired, and the database is updated according to the identification information.
  • the disclosure provides a cloud database resource expansion system, where the system includes: a management node, a distribution node, and a database node;
  • the management node is configured to determine a database resource, and apply for a database service according to a service service requirement;
  • the distribution node is configured to obtain distribution information of a database resource providing a database service
  • the database node is configured to query the corresponding database resource to provide a database service according to the distribution information.
  • a cloud database service extension system includes: a management node, a distribution node, and a database node.
  • a management node By determining a database resource, applying for a database service according to a service service requirement, and obtaining a distribution of a database resource providing a database service
  • the information is obtained by querying the corresponding database resource according to the distribution information to provide a database service, and the database service can be expanded when the database service is restricted, and no data migration is required.
  • the present disclosure provides a non-transitory computer readable storage medium storing computer executable instructions arranged to perform the above method.
  • the disclosure also provides a cloud database resource expansion system, including:
  • At least one processor At least one processor
  • the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to cause the at least one processor to perform the following method:
  • the present disclosure also provides a management node, including:
  • At least one processor At least one processor
  • the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to cause the at least one processor to perform the following method:
  • FIG. 1 is a schematic flowchart diagram of Embodiment 1 of a cloud database resource expansion method according to the present disclosure
  • Embodiment 1 is a schematic flowchart of Embodiment 1 of a method for expanding a cloud database service according to the present disclosure
  • FIG. 3 is a schematic diagram of a sub-library table of Embodiment 1 of a cloud database service extension method according to the present disclosure
  • Embodiment 4 is a schematic structural diagram of Embodiment 1 of a cloud database resource expansion system according to the present disclosure
  • FIG. 5 is a schematic structural diagram of Embodiment 1 of a cloud database service extension system according to the present disclosure
  • FIG. 6 is a schematic structural diagram of hardware of a management node according to the present disclosure.
  • the method according to the embodiment of the present disclosure may be applied to a cloud platform that carries cloud computing, and the cloud platform may be a server cluster or a computer cluster, where a plurality of virtual machines may be disposed on the server or the computer.
  • the method according to the embodiment of the present disclosure completes the expansion of the database resource and the database service extension when the database resource is restricted.
  • the database resource in the disclosure may be a memory size of a database, a number of central processing units (CPUs), and a disk capacity.
  • FIG. 1 is a schematic flowchart diagram of Embodiment 1 of a method for expanding a cloud database resource according to the present disclosure.
  • step 110 database resources are deployed according to the needs of the business service.
  • the management node of the cloud database system is responsible for managing the devices and resources of the entire cloud database system.
  • the database resource is deployed on the server, wherein the database resource may be a single database module in MYSQL or MARIADB, or may be multiple database modules.
  • the multiple database modules can form an active/standby replication relationship, and can be a primary or a standby device, or a multi-master or multiple standby architecture.
  • step 120 the identification information of the database resource is obtained.
  • configuration information such as an Internet Protocol (IP) address of the management node may be configured by the proxy node to the database resource, and the database resource identification information, also called the heartbeat information, that is, the database resource is obtained.
  • IP Internet Protocol
  • Heartbeat information also called the heartbeat information, that is, the database resource is obtained.
  • Information such as the number of processors, the size of the memory, and the size of the hard disk.
  • step 130 the database resource is expanded according to the identification information.
  • the database node may update the database resource column according to the acquired identification information of the database resource.
  • the database resource list includes identification information of all database resources, including usage status and distribution information of the database, and if the deployed database resource does not appear in the database resource list, the identification information of the database resource may be added to In the database resource list, the expansion of cloud database resources is realized.
  • the cloud database resource expansion method provided by the embodiment of the present disclosure can complete the database resource list according to the identification information by deploying the database resource in the server and acquiring the identification information of the database resource, which can be completed when the database resource is restricted.
  • the acquiring the identification information of the database resource includes:
  • processor information Obtain one or more of processor information, memory information, and hard disk information.
  • the database resource identification information may be obtained by the proxy node, and the identification information is also called heartbeat information, wherein the obtained unique identifier is a unique code of the deployment database, and the deployed database resource may be identified according to the unique code, and the database resource may also be processed.
  • heartbeat information wherein the obtained unique identifier is a unique code of the deployment database, and the deployed database resource may be identified according to the unique code, and the database resource may also be processed.
  • One or more pieces of information such as the number of devices, the size of the memory, and the size of the hard disk.
  • the available capacity of the cloud database resource can be known, so as to coordinate the database resource.
  • the cloud database resource expansion method further includes:
  • the updated database resource columns can be sorted according to the available capacity of the database resources, so that when the service service requests the database resources, the database resources with available capacity can be matched, and if no matching database resources are found, the unused database resources can be used.
  • the database resources are matched, so that the database resources can be quickly expanded according to the business service requirements.
  • the information in the database resource list can be locked, so that when the business service applies for the database resource, the database resource is matched in the database resource except the lock.
  • FIG. 2 is a schematic flowchart diagram of Embodiment 1 of a cloud database service extension method according to the present disclosure.
  • step 210 database resources are determined and a database service is requested based on the business service requirements.
  • the cloud database system can determine database resources, and there are two cases. The first one is that the cloud database resource itself is sufficient, the database service is requested according to the service service requirement, and the second is that the cloud database resource needs to be expanded in advance. Next, apply for a database service based on business service needs.
  • the database resource may be a single database module in MYSQL or MARIADB, or may be multiple database modules. Multiple database modules may form an active/standby replication relationship, and may use one primary, one standby, or multiple primary and multiple standby. Architecture.
  • step 220 distribution information of database resources providing database services is obtained.
  • the distribution information of the database resource that provides the database service is obtained according to the service service requirement, where the distribution information includes: a unique identifier of the database resource and the sub-database information
  • FIG. 3 is a cloud database service provided by the disclosure.
  • the sub-database information records the sub-table information of Table A, Table B, and Table C.
  • Table A corresponds to database service 1
  • Table B corresponds to database service 2
  • Table C corresponds to database service 3 in each
  • Each database service includes a primary database (Database, DB) and a standby database.
  • step 230 the corresponding database resource is queried according to the distribution information, and a database service is provided.
  • the corresponding database resource can be found, and the business service requirement application is provided to the database resource, thereby providing the database service.
  • a cloud database service extension method provided by an embodiment of the present disclosure, by determining a database resource, applying a database service according to a service service requirement, acquiring distribution information of a database resource providing a database service, and querying a corresponding database resource according to the distribution information, and Provide database services to complete the expansion of database services when database services are restricted, without data migration.
  • the determining the database resource includes:
  • the management node of the database system maintains all database node information, including the usage status and distribution status of all database nodes, and can determine the number of database resources and sub-database information, thereby providing database resources for business service requirements to apply for database services.
  • the requesting the database service according to the service service requirement includes:
  • SQL Structured Query Language
  • the SQL statement is requested to send a database service according to the service service requirement.
  • the SQL statement includes information such as the size, read operation, and write operation of the database resource requesting the database service, and the SQL statement can be used to quickly apply for the database service.
  • the obtaining, by using the distribution information of the database resource that provides the database service includes:
  • Each database resource has a unique identifier, and a sub-table information corresponding to the business requirement is established, and the distribution node of the database system obtains the sub-database information corresponding to the unique identifier of the database resource that provides the database service, and increases The sub-table information corresponding to the established business requirements.
  • querying the corresponding database resource to provide the database service according to the distribution information including:
  • the corresponding database resource is queried according to the sub-database information corresponding to the unique identifier, and the business service is provided by using the SQL statement.
  • the corresponding database resource Query the corresponding database resource according to the obtained sub-table information corresponding to the unique identifier of the database resource, and provide a business service according to the SQL statement of the business service requirement, and determine whether the SQL statement is a read operation or a write operation by parsing the SQL statement. If the SQL statement is a read operation, the read operation can be sent to the standby database for execution; if the SQL statement is a write operation, the write operation is sent to the primary database for execution, which improves the performance of the system.
  • the cloud database service extension method further includes:
  • the database resource is discarded, and the database resource other than the abnormal database resource is queried. If the status of the queried database resource is normal, the data resource is provided by the normal running data resource. Database service.
  • the standby database has an exception
  • the read operation in the SQL statement of the business requirement can be applied to the standby database running normally. If there is only one standby database, it can be on the primary database. Execution, if the primary database is abnormal, you can set the standby database as the primary database and execute all the services on the standby database, so that the database system is more stable when the service is extended.
  • FIG. 4 is a schematic structural diagram of Embodiment 1 of a cloud database resource expansion system according to the present disclosure, as shown in FIG. 4 As shown, the system includes a management node 10, a proxy node 20, and a database node 30.
  • the management node 10 is arranged to deploy database resources according to the needs of the business service.
  • the proxy node 20 is configured to acquire identification information of the database resource.
  • the database node 30 is arranged to update the database resource list based on the identification information.
  • a cloud database resource expansion system provided by an embodiment of the present disclosure includes a management node, a proxy node, and a database node.
  • the database is deployed on the server, and the identification information of the database resource is acquired, and the database is updated according to the identification information.
  • the proxy node is configured to acquire a unique identifier of the database resource
  • processor information Obtain one or more of processor information, memory information, and hard disk information.
  • the cloud database resource expansion system further includes a preferred node 40.
  • the preferred node 40 is configured to sort the updated database resource list according to the available capacity of the database resource, and select a database resource that meets the capacity requirement.
  • FIG. 5 is a schematic structural diagram of Embodiment 1 of a cloud database service extension system according to the present disclosure. As shown in FIG. 5, the system includes a management node 10, a distribution node 50, and a database node 30.
  • the management node 10 is configured to determine database resources and apply for a database service according to business service requirements.
  • the distribution node 50 is arranged to obtain distribution information of database resources providing database services.
  • the database node 30 is configured to query a corresponding database resource according to the distribution information and provide a database service.
  • a cloud database service extension system includes: a management node, a distribution node, and a database node.
  • a management node By determining a database resource, applying for a database service according to a service service requirement, and obtaining a distribution of a database resource providing a database service
  • the information querying the corresponding database resource according to the distribution information and providing the database service, can complete the extension of the database service when the database service is restricted, and no data migration is required.
  • the management node is configured to determine a database resource. Quantity and sub-database information.
  • the management node is configured to send a Structured Query Language (SQL) statement request database service according to the service service requirement.
  • SQL Structured Query Language
  • the distribution node is configured to obtain the sub-table information corresponding to the unique identifier of the database resource that provides the database service.
  • the database node is configured to query a corresponding database resource according to the sub-database table information corresponding to the unique identifier, and provide the service by using the structured query language (SQL) statement. service.
  • SQL structured query language
  • the cloud database service extension system further includes: an exception processing node 60.
  • the exception handling node 60 is configured to provide a database service by querying to a running database resource if the status of the queried database resource is abnormal.
  • Embodiments of the present disclosure also provide a non-transitory computer readable storage medium storing computer executable instructions arranged to perform the methods of the above embodiments.
  • the embodiment of the present disclosure further provides a hardware structure diagram of a management node. Referring to Figure 7, the management node includes:
  • At least one processor 70 which is exemplified by a processor 70 in FIG. 7; and a memory 71, may further include a communication interface 72 and a bus 73.
  • the processor 70, the communication interface 72, and the memory 71 can complete communication with each other through the bus 73.
  • Communication interface 72 can be used for information transfer.
  • the processor 70 can call the logic instructions in the memory 71 to perform the following method:
  • the processor 70 can call the logic instructions in the memory 71 to perform the following method:
  • the processor 70 can call the logic instructions in the memory 71 to perform the following method:
  • logic instructions in the memory 71 described above may be implemented in the form of a software functional unit and sold or used as a stand-alone product, and may be stored in a computer readable storage medium.
  • the memory 71 is a computer readable storage medium and can be used to store a software program, a computer executable program, a program instruction or a module corresponding to a method executed by the processor 70 in the embodiment of the present disclosure.
  • the processor 70 executes functional applications and data processing by running software programs, instructions or modules stored in the memory 71.
  • the memory 71 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function; the storage data area may store data created according to usage of the terminal device, and the like. Further, the memory 71 may include a high speed random access memory, and may also include a nonvolatile memory.
  • the proxy node, preferred node, distribution node, database node, and exception handling node of the embodiments of the present disclosure may have the same hardware structure as the management node.
  • the processor of the proxy node invokes logic instructions in the memory of the proxy node to perform the following method: acquiring identification information of a database resource, wherein the database resource is the The management node is deployed according to the needs of the business service.
  • the processor of the proxy node invokes logic instructions in the memory of the proxy node to perform the following method: acquiring a unique identifier of the database resource; and acquiring processor identification information, memory identification information, and hard disk information. One or more.
  • the processor of the distribution node invokes logic instructions in the memory of the distribution node to perform the following method: obtaining distribution information of database resources providing database services.
  • the processor of the distribution node invokes logic instructions in the memory of the distribution node to perform the following method: acquiring the sub-table information corresponding to the unique identifier of the database resource that provides the database service.
  • the processor of the database node invokes logic instructions in the memory of the database node to perform the following method: updating the database resource list according to the identification information; and according to the distribution Information queries the corresponding database resources and provides database services.
  • the processor of the preferred node invokes logic instructions in the memory of the preferred node to perform the following method: according to the available capacity of the database resource, the updated database resource list Sort and select the database resources that meet the capacity requirements.
  • the processor of the exception processing node is called Selecting logic instructions in the memory of the node to execute the following method: if the status of the queried database resource is abnormal, discard the database resource, query database resources other than the abnormal database resource, and if the queried database resource The state of the database is serviced by a properly functioning data resource during normal operation.
  • the technical solution of the present disclosure may be embodied in the form of a software product stored in a storage medium, including one or more instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) Performing all or part of the steps of the method of the embodiments of the present disclosure.
  • the foregoing storage medium may be a non-transitory storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like.
  • the cloud database resource extension and service extension method and system provided by the present disclosure can complete database resource expansion and database service expansion when database resources are restricted, and no data migration is required.

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Abstract

一种云数据库资源扩展和服务扩展的方法和系统,根据业务服务的需求部署数据库资源(110),并获取所述数据库资源的识别信息(120),根据所述识别信息更新数据库资源列表(130),确定数据库资源,根据业务服务需求申请数据库服务(210),获取提供数据库服务的数据库资源的分布信息(220),以及根据所述分布信息查询对应的数据库资源并提供数据库服务(230)。

Description

云数据库资源扩展和服务扩展的方法和系统 技术领域
本公开涉及移动通信技术,例如涉及一种云数据库资源扩展和服务扩展的方法和系统。
背景技术
随着信息时代的发展,信息量和数据量不断增长、业务多样化的需求不断提高,对数据库系统提出了更高的要求,因此,云数据库系统作为新型的数据库系统,可以较大程度地利用资源,也便于根据业务的需求灵活地开发和维护资源,使得云数据库成为当前数据库领域的热点。
相关技术中,当数据库存储的数据的数量数据库资源的限制,通常采用数据迁移的方法对数据进行存储。
但是,采用数据迁移的方法,容易对业务造成很大影响,对于实现多租户的云数据库服务,该方法的实施过程非常复杂。
发明内容
本公开提供了一种云数据库资源扩展和服务扩展的方法和系统,能够在数据库资源受到限制时,不用实施数据迁移就可以完成数据库资源的扩展以及提供数据库服务。
第一方面,本公开提供一种云数据库资源扩展方法,该方法包括:
根据业务服务的需求部署数据库资源;
获取所述数据库资源的识别信息;以及
根据所述识别信息更新数据库资源列表。
本公开提供的一种云数据库资源扩展方法,通过在服务器部署数据库资源,并获取所述数据库资源的识别信息,根据所述识别信息更新数据库资源列表,能够在数据库资源受到限制时,完成数据库资源的扩展。
第二方面,本公开提供一种云数据库服务扩展方法,该方法包括:确定数 据库资源,根据业务服务需求申请数据库服务;
获取提供数据库服务的数据库资源的分布信息;以及
根据所述分布信息查询对应的数据库资源并提供数据库服务。
本公开实施例提供的一种云数据库服务扩展方法,通过确定数据库资源,根据业务服务需求申请数据库服务,获取提供数据库服务的数据库资源的分布信息,根据所述分布信息查询对应数据库资源提供数据库服务,能够在数据库服务受到限制时,完成数据库服务的扩展,无需数据迁移。
第三方面,本公开提供一种云数据库资源扩展系统,所述系统包括:管理节点、代理节点和数据库节点;其中,
所述管理节点设置为根据业务服务的需求部署数据库资源;
所述代理节点设置为获取所述数据库资源的识别信息;以及
所述数据库节点设置为根据所述识别信息更新数据库资源列表。
本公开实施例提供的一种云数据库资源扩展系统,该系统包括管理节点、代理节点和数据库节点,通过在服务器部署数据库资源,并获取所述数据库资源的识别信息,根据所述识别信息更新数据库资源列表,能够在数据库资源受到限制时,完成数据库资源的扩展,无需数据迁移。
第四方面,本公开提供一种云数据库资源扩展系统,所述系统包括:管理节点、分发节点和数据库节点;其中,
所述管理节点设置为确定数据库资源,根据业务服务需求申请数据库服务;
所述分发节点设置为获取提供数据库服务的数据库资源的分布信息;以及
所述数据库节点设置为根据所述分布信息查询对应数据库资源提供数据库服务。
本公开实施例提供的一种云数据库服务扩展系统,所述系统包括:管理节点、分发节点和数据库节点,通过确定数据库资源,根据业务服务需求申请数据库服务,获取提供数据库服务的数据库资源的分布信息,根据所述分布信息查询对应数据库资源提供数据库服务,能够在数据库服务受到限制时,完成数据库服务的扩展,无需数据迁移。本公开提供了一种非暂态计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令设置为执行上述方法。
本公开还提供了一种云数据库资源扩展系统,包括:
至少一个处理器;以及
与所述至少一个处理器通信连接的存储器;其中,
所述存储器存储有可被所述至少一个处理器执行的指令,所述指令被所述至少一个处理器执行,以使所述至少一个处理器执行以下方法:
根据业务服务的需求部署数据库资源;
获取所述数据库资源的识别信息;以及
根据所述识别信息更新数据库资源列表。
本公开还提供了一种管理节点,包括:
至少一个处理器;以及
与所述至少一个处理器通信连接的存储器;其中,
所述存储器存储有可被所述至少一个处理器执行的指令,所述指令被所述至少一个处理器执行,以使所述至少一个处理器执行以下方法:
确定数据库资源,根据业务服务需求申请数据库服务。
附图说明
附图提供对本公开技术方案的可选理解,并且构成说明书的一部分,与本申请的实施例一起解释本公开的技术方案,并不构成对本公开技术方案的限制。
图1为本公开提供的一种云数据库资源扩展方法实施例一的流程示意图;
图2为本公开提供的一种云数据库服务扩展的方法实施例一的流程示意图;
图3为本公开提供的一种云数据库服务扩展方法实施例一的分库分表示意图;
图4为本公开一种云数据库资源扩展系统实施例一的结构示意图;
图5为本公开一种云数据库服务扩展系统实施例一的结构示意图;以及
图6为本公开一种管理节点的硬件结构示意图。
具体实施方式
为使本公开的技术方案更加清楚明白,下文中将结合附图对本公开的实施例进行详细说明。在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互任意组合。
在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的计算机系统中执行。并且,虽然在流程图中示出了逻辑顺序,但是在一些情况下,可以以不同于本申请中流程图中方法的顺序执行所示出或描述的步骤。
本公开实施例涉及的方法可以应用于承载云计算的云平台,该云平台可以是服务器集群或者是计算机集群,其中,服务器或者计算机上可以设有多个虚拟机。
本公开实施例涉及的方法,在数据库资源受到限制时,完成数据库资源的扩展以及数据库服务扩展。其中,本公开中的所述数据库资源可以是数据库的内存大小、中央处理器(Central Processing Unit,CPU)的个数以及磁盘容量。
下面通过实施例对本公开的技术方案进行详细说明。实施例可以相互结合,对于相同的概念或过程在一些实施例中不再赘述。
图1为本公开提供的一种云数据库资源扩展方法实施例一的流程示意图。
在步骤110中,根据业务服务的需求部署数据库资源。
例如,云数据库系统的管理节点负责管理整个云数据库系统的设备和资源,但由于业务服务的需求,例如电商业务的数据量比较大,随着数据量越来越多,需要对数据库系统的容量进行扩展。在服务器上部署数据库资源,其中,该数据库资源可以是MYSQL或者MARIADB中的单个数据库模块,也可以是多个数据库模块。其中,多个数据库模块之间可以组成主备复制关系,可以采用一主、一备,或者是多主、多备的架构。
在步骤120中,获取所述数据库资源的识别信息。
部署数据库资源后,可以由代理节点将管理节点的互联网互联协议(Internet Protocol,IP)地址等配置信息配置给所述数据库资源,并获取数据库资源识别信息,也叫心跳信息,即该数据库资源的处理器的数量、内存的大小以及硬盘的大小等信息。
在步骤130中,根据所述识别信息对所述数据库资源进行扩展。
数据库节点可以根据获取的该数据库资源的识别信息更新数据库资源列 表,所述数据库资源列表包括所有数据库资源的识别信息,包括数据库的使用状态和分布信息等,如果部署的该数据库资源没有出现在数据库资源列表里,则可以将该数据库资源的识别信息添加至数据库资源列表中,实现云数据库资源的扩展。
本公开实施例提供的一种云数据库资源扩展方法,通过在服务器部署数据库资源,并获取所述数据库资源的识别信息,根据所述识别信息更新数据库资源列表,能够在数据库资源受到限制时,完成数据库资源的扩展。
可选地,在上述实施例的基础上,所述获取所述数据库资源的识别信息,包括:
获取所述数据库资源的唯一识别码;以及
获取处理器信息、内存信息以及硬盘信息中的一项或者多项。
可由代理节点获取数据库资源识别信息,该识别信息也叫心跳信息,其中获取的唯一识别码是部署数据库的唯一编码,可以根据所述唯一编码识别部署的数据库资源,还可以获取该数据库资源的处理器的数量、内存的大小以及硬盘的大小等一个或者多个信息。
通过获取数据库资源的识别信息,可以获知云数据库资源的可用容量,以便统筹安排所述数据库资源。
可选地,在上述实施例的基础上,云数据库资源扩展方法还包括:
按照数据库资源的可用容量对更新后的数据库资源列表进行排序,选择满足容量需求的数据库资源。
可以按照数据库资源的可用容量来对更新后的数据库资源列别进行排序,便于业务服务申请数据库资源时,可以具有可用容量的数据库资源中匹配,如果没有找到匹配的数据库资源,可以到未被使用的数据库资源中去匹配,从而可以快速地根据业务服务需求进行数据库资源的扩展。根据需求,对于一些特定的数据库资源,可以锁定数据库资源列表中的信息,从而使得业务服务申请数据库资源时,在除锁定的数据库资源中匹配数据库资源。
图2为本公开提供的一种云数据库服务扩展方法实施例一的流程示意图。
在步骤210中,确定数据库资源,根据业务服务需求申请数据库服务。
例如,云数据库系统可以确定数据库资源,其中有两种情况,第一种是云数据库资源本身够用的情况下,根据业务服务需求申请数据库服务,第二种是云数据库资源需要扩展资源的提前下,根据业务服务需求申请数据库的服务。其中,数据库资源可以是MYSQL或者MARIADB中单个数据库模块,也可以是多个数据库模块,多个数据库模块之间可以组成主备复制关系,可以采用一主、一备或者是多主、多备的架构。
在步骤220中,获取提供数据库服务的数据库资源的分布信息。
可选的,根据业务服务需求,获取提供数据库服务的数据库资源的分布信息,该分布信息包括:数据库资源的唯一标识符和分库分表信息,图3为本公开提供的一种云数据库服务扩展方法实施例一的分库分表示意图。如图3所示,该分库分表信息记录了表A、表B和表C的分表信息,表A对应数据库服务1、表B对应数据库服务2、表C应数据库服务3,在每个数据库服务中都包括一个主数据库(Database,DB)和一个备数据库。
在步骤230中,根据所述分布信息查询对应的数据库资源,并提供数据库服务。
根据数据库资源的唯一标识符和分库分表信息,可以找到对应的数据库资源,将业务服务需求申请提供给该数据库资源,从而提供数据库服务。
本公开实施例提供的一种云数据库服务扩展方法,通过确定数据库资源,根据业务服务需求申请数据库服务,获取提供数据库服务的数据库资源的分布信息,根据所述分布信息查询对应的数据库资源,并提供数据库服务,能够在数据库服务受到限制时,完成数据库服务的扩展,无需数据迁移。
可选地,在上述实施例的基础上,所述确定数据库资源,包括:
确定数据库资源的数量和分表分库信息。
数据库系统的管理节点维护了所有数据库节点信息,包括了所有数据库节点的使用状态和分布状态,可以确定数据库资源的数量和分表分库信息,从而为业务服务需求申请数据库服务提供了数据库资源。
可选地,在上述实施例的基础上,所述根据业务服务需求申请数据库服务,包括:
根据业务服务需求发送结构化查询语言(Structured Query Language,SQL) 语句申请数据库服务。
根据业务服务需求发送SQL语句请求数据库服务,该SQL语句包括了请求数据库服务的数据库资源的大小、读操作以及写操作等信息,通过SQL语句可以便于快速申请数据库服务。
可选地,在上述实施例的基础上,所述获取提供数据库服务的数据库资源的分布信息,包括:
获取提供数据库服务的数据库资源的唯一标识符对应的分表分库信息。
每个数据库资源都有唯一标识符,并建立有业务需求对应的分表分库信息,可由数据库系统的分发节点获取提供数据库服务的数据库资源的唯一标识符对应的分表分库信息,并增加到已建立的业务需求对应的分表分库信息。
可选地,在上述实施例的基础上,根据所述分布信息查询对应数据库资源提供数据库服务,包括:
根据所述唯一标识符对应的分库分表信息查询对应的数据库资源,采用SQL语句提供业务服务。
根据获取到的数据库资源的唯一标识符对应的分表分库信息来查询对应的数据库资源,并根据业务服务需求的SQL语句提供业务服务,通过解析SQL语句,判断SQL语句是读操作还是写操作,如果SQL语句是读操作,可以将读操作发送到备数据库上执行;如果SQL语句是写操作,则发送写操作到主数据库上执行,提高了系统的性能。
可选地,在上述实施例的基础上,云数据库服务扩展方法还包括:
若查询到的数据库资源的状态有异常,则舍弃所述数据库资源,查询除异常的数据库资源之外的数据库资源,若查询到的数据库资源的状态为正常运行时,由正常运行的数据资源提供数据库服务。
若查询到的数据库资源的状态有异常时,例如备数据库有异常,可以把业务需求的SQL语句中的读操作应用到正常运行的备数据库上,若只有一个备数据库,则可以在主数据库上执行,若主数据库异常,则可以将备数据库设置成主数据库,将所有业务都在备数据库上执行,从而使得数据库系统在扩展服务的时候稳定性更强。
图4为本公开一种云数据库资源扩展系统实施例一的结构示意图,如图4 所示,所述系统包括:管理节点10、代理节点20和数据库节点30。
所述管理节点10设置为根据业务服务的需求部署数据库资源。
所述代理节点20设置为获取所述数据库资源的识别信息。
所述数据库节点30设置为根据所述识别信息更新数据库资源列表。
本公开实施例提供的一种云数据库资源扩展系统,该系统包括管理节点、代理节点和数据库节点,通过在服务器部署数据库资源,并获取所述数据库资源的识别信息,根据所述识别信息更新数据库资源列表,从而能够在数据库资源受到限制时,完成数据库资源的扩展。
可选地,在上述实施例的基础上,所述代理节点设置为获取所述数据库资源的唯一识别码;以及
获取处理器信息、内存信息以及硬盘信息中的一项或者多项。
可选地,在上述实施例的基础上,云数据库资源扩展系统还包括优选节点40。
所述优选节点40设置为按照数据库资源的可用容量对更新后的数据库资源列表进行排序,选择满足容量需求的数据库资源。
图5为本公开一种云数据库服务扩展系统实施例一的结构示意图,如图5所示,所述系统包括管理节点10、分发节点50和数据库节点30。
所述管理节点10设置为确定数据库资源,根据业务服务需求申请数据库服务。
所述分发节点50设置为获取提供数据库服务的数据库资源的分布信息。
所述数据库节点30设置为根据所述分布信息查询对应的数据库资源并提供数据库服务。
本公开实施例提供的一种云数据库服务扩展系统,所述系统包括:管理节点、分发节点和数据库节点,通过确定数据库资源,根据业务服务需求申请数据库服务,获取提供数据库服务的数据库资源的分布信息,根据所述分布信息查询对应的数据库资源并提供数据库服务,能够在数据库服务受到限制时,完成数据库服务的扩展,无需数据迁移。
可选地,在上述实施例的基础上,所述管理节点设置为确定数据库资源的 数量和分表分库信息。
可选地,在上述实施例的基础上,所述管理节点设置为根据业务服务需求发送结构化查询语言(SQL)语句申请数据库服务。
可选地,在上述实施例的基础上,所述分发节点设置为获取提供数据库服务的数据库资源的唯一标识符对应的分表分库信息。
可选地,在上述实施例的基础上,所述数据库节点设置为根据所述唯一标识符对应的分库分表信息查询对应的数据库资源,采用所述结构化查询语言(SQL)语句提供业务服务。
可选地,在上述实施例的基础上,云数据库服务扩展系统还包括:异常处理节点60。
所述异常处理节点60设置为若查询到的数据库资源的状态有异常,则采用查询到运行正常的数据库资源提供数据库服务。
本公开实施例还提供了一种非暂态计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令设置为执行上述实施例中的方法。本公开实施例还提供了一种管理节点的硬件结构示意图。参见图7,该管理节点包括:
至少一个处理器(processor)70,图7中以一个处理器70为例;和存储器(memory)71,还可以包括通信接口(Communications Interface)72和总线73。其中,处理器70、通信接口72、存储器71可以通过总线73完成相互间的通信。通信接口72可以用于信息传输。处理器70可以调用存储器71中的逻辑指令,以执行下方法:
根据业务服务的需求部署数据库资源确定数据库资源;以及
确定数据库资源,根据业务服务需求申请数据库服务。
可选的,处理器70可以调用存储器71中的逻辑指令,以执行下方法:
确定数据库资源的数量和分表分库信息。
可选的,处理器70可以调用存储器71中的逻辑指令,以执行下方法:
根据业务服务需求发送结构化查询语言SQL语句申请数据库服务。
此外,上述的存储器71中的逻辑指令可以通过软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。
存储器71作为一种计算机可读存储介质,可用于存储软件程序、计算机可执行程序,如本公开实施例处理器70执行的方法对应的程序指令或模块。处理器70通过运行存储在存储器71中的软件程序、指令或模块,从而执行功能应用以及数据处理。
存储器71可包括存储程序区和存储数据区,其中,存储程序区可存储操作系统、至少一个功能所需的应用程序;存储数据区可存储根据终端设备的使用所创建的数据等。此外,存储器71可以包括高速随机存取存储器,还可以包括非易失性存储器。
本公开实施例的代理节点、优选节点、分发节点、数据库节点和异常处理节点可以与管理节点具有相同的硬件结构。
与所述管理节点的处理器70不同的是,所述代理节点的处理器调用代理节点的存储器中的逻辑指令,以执行下方法:获取数据库资源的识别信息,其中所述数据库资源是所述管理节点根据业务服务的需求进行部署的。
可选的,所述代理节点的处理器调用代理节点的存储器中的逻辑指令,以执行下方法:获取所述数据库资源的唯一识别码;以及获取处理器识别信息、内存识别信息和硬盘信息中的一项或者多项。
与所述管理节点的处理器70不同的是,所述分发节点的处理器调用分发节点的存储器中的逻辑指令,以执行下方法:获取提供数据库服务的数据库资源的分布信息。
可选的,所述分发节点的处理器调用分发节点的存储器中的逻辑指令,以执行下方法:获取提供数据库服务的数据库资源的唯一标识符对应的分表分库信息。
与所述管理节点的处理器70不同的是,所述数据库节点的处理器调用数据库节点的存储器中的逻辑指令,以执行下方法:根据所述识别信息更新数据库资源列表;以及根据所述分布信息查询对应的数据库资源并提供数据库服务。
与所述管理节点的处理器70不同的是,所述优选节点的处理器调用优选节点的存储器中的逻辑指令,以执行下方法:按照所述数据库资源的可用容量对更新后的数据库资源列表进行排序,选择满足容量需求的数据库资源。
与所述管理节点的处理器70不同的是,所述异常处理节点的处理器调用优 选节点的存储器中的逻辑指令,以执行下方法:若查询到的数据库资源的状态有异常,则舍弃所述数据库资源,查询除异常的数据库资源之外的数据库资源,若查询到的数据库资源的状态为正常运行时,由正常运行的数据资源提供数据库服务。
本公开的技术方案可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括一个或多个指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本公开实施例所述方法的全部或部分步骤。而前述的存储介质可以是非暂态存储介质,包括:U盘、移动硬盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等多种可以存储程序代码的介质,也可以是暂态存储介质。
工业实用性
本公开提供的云数据库资源扩展和服务扩展的方法和系统,能够在数据库资源受到限制时,完成数据库资源的扩展以及数据库服务扩展,无需数据迁移。

Claims (19)

  1. 一种云数据库资源扩展方法,包括:
    根据业务服务的需求部署数据库资源;
    获取所述数据库资源的识别信息;以及
    根据所述识别信息更新数据库资源列表。
  2. 根据权利要求1所述的方法,其中,所述获取所述数据库资源的识别信息,包括:
    获取所述数据库资源的唯一识别码;以及
    获取处理器信息、内存信息以及硬盘信息中的一项或者多项。
  3. 根据权利要求1所述的方法,还包括:
    按照所述数据库资源的可用容量对更新后的数据库资源列表进行排序,选择满足容量需求的数据库资源。
  4. 一种云数据库服务扩展方法,包括:
    确定数据库资源,根据业务服务需求申请数据库服务;
    获取提供数据库服务的数据库资源的分布信息;以及
    根据所述分布信息查询对应的数据库资源并提供数据库服务。
  5. 根据权利要求4所述的方法,其中,所述确定数据库资源,包括:
    确定数据库资源的数量和分表分库信息。
  6. 根据权利要求4所述的方法,其中,所述根据业务服务需求申请数据库服务,包括:
    根据业务服务需求发送结构化查询语言SQL语句申请数据库服务。
  7. 根据权利要求6所述的方法,其中,所述获取提供数据库服务的数据库资源的分布信息,包括:
    获取提供数据库服务的数据库资源的唯一标识符对应的分表分库信息。
  8. 根据权利要求7所述的方法,其中,根据所述分布信息查询对应的数据库资源并提供数据库服务,包括:
    根据所述唯一标识符对应的分库分表信息查询对应的数据库资源,采用所述结构化查询语言SQL语句提供业务服务。
  9. 根据权利要求4所述的方法,还包括:
    若查询到的数据库资源的状态有异常,则舍弃所述数据库资源,查询除异常的数据库资源之外的数据库资源,若查询到的数据库资源的状态为正常运行时,由正常运行的数据资源提供数据库服务。
  10. 一种云数据库资源扩展系统,管理节点、代理节点和数据库节点;其中,
    所述管理节点设置为根据业务服务的需求部署数据库资源;
    所述代理节点设置为获取所述数据库资源的识别信息;以及
    所述数据库节点设置为根据所述识别信息更新数据库资源列表。
  11. 根据权利要求10所述的系统,其中,所述代理节点设置为获取所述数据库资源的唯一识别码;以及
    获取处理器识别信息、内存识别信息和硬盘信息中的一项或者多项。
  12. 根据权利要求11所述的系统,还包括优选节点;其中,
    所述优选节点设置为按照所述数据库资源的可用容量对更新后的数据库资源列表进行排序,选择满足容量需求的数据库资源。
  13. 一种云数据库服务扩展系统,管理节点、分发节点和数据库节点;其中,
    所述管理节点设置为确定数据库资源,根据业务服务需求申请数据库服务;
    所述分发节点设置为获取提供数据库服务的数据库资源的分布信息;以及
    所述数据库节点设置为根据所述分布信息查询对应的数据库资源并提供数据库服务。
  14. 根据权利要求13所述的系统,其中,所述管理节点设置为确定数据库资源的数量和分表分库信息。
  15. 根据权利要求13所述的系统,其中,所述管理节点设置为根据业务服务需求发送结构化查询语言SQL语句申请数据库服务。
  16. 根据权利要求15所述的系统,其中,所述分发节点设置为获取提供数据库服务的数据库资源的唯一标识符对应的分表分库信息。
  17. 根据权利要求16所述的系统,其中,所述数据库节点设置为根据所述唯一标识符对应的分库分表信息查询对应的数据库资源,采用所述结构化查询语言SQL语句提供业务服务。
  18. 根据权利要求17所述的系统,还包括:异常处理节点,其中,
    所述异常处理节点设置为若查询到的数据库资源的状态有异常,则舍弃所述数据库资源,查询除异常的数据库资源之外的数据库资源,若查询到的数据库资源的状态为正常运行时,由正常运行的数据资源提供数据库服务。
  19. 一种非暂态计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令设置为执行权利要求1-9中任一项的方法。
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