CN117370337A - Partition creation method, partition creation device, computer equipment and storage medium - Google Patents
Partition creation method, partition creation device, computer equipment and storage medium Download PDFInfo
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Abstract
The application relates to a partition creation method, a partition creation device, computer equipment and a storage medium. The method comprises the following steps: obtaining partition creation configuration corresponding to a specified partition table, wherein the specified partition table is any partition table for storing service data in a partition; and automatically creating a blank first partition for the specified partition table according to the self-increment period timing in the partition creation configuration, and storing service data matched with the data attribute of the first partition into the first partition when receiving service data related to the specified partition table. The self-increasing period in the configuration of the partition creation corresponding to the specified partition table is used for automatically timing to create a blank first partition for the specified partition table, and a database manager does not need to manually perform DDL operation to create an empty partition, so that the problem that normal execution of a service is affected due to the fact that the database manager manually creates the empty partition is solved.
Description
Technical Field
The present disclosure relates to the field of database technologies, and in particular, to a partition creating method, apparatus, computer device, and storage medium.
Background
With the development of the internet, more and more data needs to be applied to database technology, most of tables in a database are ordinary tables, if the data amount of the tables is large, the operation performance of the tables is affected, and in order to improve the performance, the tables are usually implemented as partition tables (Range tables). The partition table is a partition type frequently used by the service, and can store the service data in a partition mode according to time.
Typically, however, a database administrator (DBA) will create a number of empty partitions for the table in advance for providing storage services for future user data. If the empty partitions in the table are used, then the database manager is required to continue to manually create multiple empty partitions for the table in advance. The operation of creating the space partition corresponds to performing DDL statement custom operation on the table (data definition language-Data Definition Language, DDL is a code statement of the structure level). Usually, performing DDL operations on a table is a time-consuming and dangerous operation, and normal execution of services may be affected when DDL operations are performed, resulting in service timeout and affecting user experience.
Disclosure of Invention
The application provides a partition creation method, a partition creation device, computer equipment and a storage medium, which are used for solving the problem that a database manager manually influences normal execution of a service when creating an empty partition.
In a first aspect, the present application provides a partition creation method, the method including:
obtaining partition creation configuration corresponding to a specified partition table, wherein the specified partition table is any partition table for storing service data in a partition;
automatically creating a blank first partition for the specified partition table according to the self-increment period timing in the partition creation configuration;
and storing the business data matched with the data attribute of the first partition into the first partition when the business data related to the appointed partition table is received.
In a second aspect, the present application provides a partition creation apparatus, the apparatus comprising:
the system comprises an acquisition module, a storage module and a storage module, wherein the acquisition module is used for acquiring partition creation configuration corresponding to a specified partition table, wherein the specified partition table is any partition table used for storing service data in a partition;
the creating module is used for automatically creating a blank first partition for the specified partition table according to the self-increment period timing in the partition creating configuration;
and the storage module is used for storing the business data matched with the data attribute of the first partition into the first partition when receiving the business data related to the appointed partition table.
In a third aspect, the present application provides a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the above-described partition creation method when executing the computer program.
In a fourth aspect, the present application also provides a computer storage medium storing computer-executable instructions for performing the above-described partition creation method.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages: according to the method provided by the embodiment of the application, the partition creation configuration corresponding to the specified partition table is obtained, wherein the specified partition table is any partition table used for storing service data in a partition; and automatically creating a blank first partition for the specified partition table according to the self-increment period timing in the partition creation configuration, and storing service data matched with the data attribute of the first partition into the first partition when receiving service data related to the specified partition table. The self-increasing period in the configuration of the partition creation corresponding to the specified partition table is used for automatically timing to create a blank first partition for the specified partition table, and a database manager does not need to manually perform DDL operation to create an empty partition, so that the problem that normal execution of a service is affected due to the fact that the database manager manually creates the empty partition is solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.
Fig. 1 is an application environment diagram of a partition creating method provided in an embodiment of the present application;
fig. 2 is a flow chart of a partition creating method according to an embodiment of the present application;
FIG. 3 is a block diagram of a partition creating apparatus according to an embodiment of the present application;
fig. 4 is a schematic diagram of an internal structure of a computer device according to an embodiment of the present application.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.
The following disclosure provides many different embodiments, or examples, for implementing different structures of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
Fig. 1 is an application environment diagram of a partition creating method according to an embodiment of the present application. Referring to fig. 1, the partition creation method is applied to a partition creation system. The partition creation system includes a partition creation device 110 and a database system 120. The partition creation means 110 and the database system 120 are connected via a network. The database manager manages the database system 120 by operating the partition creation apparatus 110. The partition creation means 110 and the database system 120 may be implemented as separate servers or as a server cluster of a plurality of servers, respectively.
In one embodiment, fig. 2 is a flow chart of a partition creating method in one embodiment, and referring to fig. 2, a partition creating method is provided. The present embodiment is mainly exemplified by the application of the method to the partition creating apparatus 110 in fig. 1, and the partition creating method specifically includes the following steps:
step S210, a partition creation configuration corresponding to a specified partition table is obtained, wherein the specified partition table is any partition table used for storing business data in a partition.
Specifically, the database manager sets a corresponding partition creation configuration for each partition table in advance by designating a partition table as any partition table (Range table) for storing data in the database system 120, where the partition creation configuration may be implemented by using a self-increasing partition code or a functional control corresponding to the self-increasing partition. The partition creation configuration includes a self-increasing partition dimension and a self-increasing period, where the self-increasing partition dimension may specifically be a time or other column item parameters, that is, the partitions are divided according to columns, in this embodiment, the self-increasing partition dimension is time, and the time dimension may be a partition, a time, a day, a month, a year, or the like, where a day is selected as the self-increasing partition dimension.
Step S220, automatically creating a blank first partition for the specified partition table according to the self-increment period timing in the partition creation configuration.
Specifically, a blank first partition is automatically created for a specified partition table periodically according to a self-increment period in partition creation configuration, wherein the first partition is a column item partition, namely a Range partition, each Range partition is provided with a corresponding ibd file, and the Range partitions are physically and truly separated in data.
And step S230, when the business data related to the specified partition table is received, the business data matched with the data attribute of the first partition is stored in the first partition.
Specifically, the service data matched with the data attribute of the first partition is stored in the first partition, the data attribute refers to a column item parameter, the service data matched with the column item parameter of the first partition is stored in the first partition, for example, the column item parameter of the first partition is "date 2022-11-02", and the service data with the timestamp 2022-11-02 is stored in the first partition. The self-increasing period in the configuration of the partition creation corresponding to the specified partition table is used for automatically timing to create a blank first partition for the specified partition table, and a database manager does not need to manually perform DDL operation to create an empty partition, so that the problem that normal execution of a service is affected due to the fact that the database manager manually creates the empty partition is solved.
In one embodiment, after the obtaining the partition creation configuration corresponding to the specified partition table, the method further includes:
creating a blank second partition for the specified partition table according to the partition creation configuration;
and when receiving the service data related to the appointed partition table, storing the service data which does not belong to the first partition existing in the appointed partition table into the second partition.
Specifically, the second partition is an out-of-range partition, namely a maxvalue partition, and a blank second partition is automatically created for a specified partition table when the partition creation configuration is operated, wherein the second partition is used for storing service data which does not belong to the first partition, and the second partition can be used for carrying out centralized storage management on the service data which does not belong to the first partition, so that disorder of data management caused by random storage of the service data which does not belong to the first partition is avoided.
In one embodiment, after the creating the second partition for the specified partition table according to the partition creation configuration, the method further comprises:
splitting the second partition according to the data attribute of the first partition in the appointed partition table to obtain a split partition;
and migrating the business data in the split partition to the existing first partition with matched data attributes.
Specifically, after the second partition is automatically created for the specified partition table based on the partition creation configuration, detection is needed for the second partition to determine whether service data belonging to the first partition exists in the second partition, if the service data belonging to the first partition exists in the second partition, the second partition is split according to the data attribute of the first partition existing in the specified partition table to split the split partition corresponding to the service data belonging to the first partition, namely, data screening is performed in the second partition according to the column item parameters of the first partition, the service data which are screened to meet the corresponding column item parameters of the first partition form the split partition, and the service data in the split partition are migrated into the first partition matched with the column item parameters, so that the service data belonging to the first partition in the second partition are migrated into the first partition to be convenient for classifying and storing the service data.
In one embodiment, the splitting the second partition according to the data attribute of the first partition in the specified partition table to obtain a split partition includes:
detecting a data storage state in the second partition through a background thread;
and splitting the second partition according to the data attribute of the first partition in the appointed partition table when the data storage state is the existing data, so as to obtain a split partition.
Specifically, the background thread detects the data storage state in the second partition, if the second partition does not store data, the data storage state is free of data, and if the second partition stores data, the data storage state is the existing data. When the data storage state is no data, the second partition does not need to be split; and when the data storage state is the existing data, splitting the second partition according to the column item parameters of the existing first partition in the appointed partition table so as to split the split partition corresponding to the business data belonging to the existing first partition.
In one embodiment, when the data storage state is the existing data, splitting the second partition according to the data attribute of the existing first partition in the specified partition table to obtain a split partition, including:
when the data storage state is the existing data, acquiring the working state of the database system 120 to which the specified partition table belongs;
and splitting the second partition according to the data attribute of the first partition in the appointed partition table when the working state is idle, so as to obtain a split partition.
Specifically, when the data storage state in the second partition is the existing data, if the second partition is split according to the data attribute of the existing first partition in the specified partition table when the database system 120 is busy, the response speed of the database system 120 to the user request may be affected, so that the working state of the database system 120 to which the specified partition table belongs determines when to split the second partition, if the working state of the database system 120 to which the specified partition table belongs is busy, it means that the database system 120 spends a large amount of data resources for responding to the user request, and if the data resources of the database system 120 are consumed when the second partition is split, the response speed of the user request may be affected, so that the splitting process of the second partition is not performed under the condition; if the working state of the database system 120 to which the specified partition table belongs is idle, which means that the database system 120 has more available data resources currently, the second partition may be split according to the data attribute of the existing first partition, and the second partition is staggered from the busy peak stage of the database system 120, so as to ensure the response speed to the user request.
In one embodiment, the splitting the second partition according to the data attribute of the first partition in the specified partition table to obtain a split partition includes:
and splitting the second partition according to the data attribute of the first partition existing in the appointed partition table at the self-increment period timing in the partition creation configuration to obtain a split partition.
Specifically, the splitting process can be directly performed on the second partition according to the self-increasing period in the partition creation configuration and the column entry parameters of the existing first partition in the designated partition table, that is, after a blank first partition is newly created, whether service data belonging to the blank first partition exists in the second partition is searched, and the service data belonging to the newly created first partition is timely migrated from the second partition to the newly created first partition, so that the service data in the second partition can be timely classified and stored.
FIG. 2 is a flow diagram of a partition creation method in one embodiment. It should be understood that, although the steps in the flowchart of fig. 2 are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in fig. 2 may include multiple sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, nor do the order in which the sub-steps or stages are performed necessarily performed in sequence, but may be performed alternately or alternately with at least a portion of the sub-steps or stages of other steps or other steps.
In one embodiment, as shown in FIG. 3, there is provided a partition creation apparatus 110 comprising:
an obtaining module 310, configured to obtain a partition creation configuration corresponding to a specified partition table, where the specified partition table is any partition table used for storing service data in a partition;
a creating module 320, configured to automatically create a blank first partition for the specified partition table according to the self-increment period timing in the partition creation configuration;
and a storage module 330, configured to store, when receiving service data related to the specified partition table, service data matching the data attribute of the first partition into the first partition.
In one embodiment, the creation module 320 is further configured to:
creating a blank second partition for the specified partition table according to the partition creation configuration;
the storage module 330 is further configured to store, when receiving service data related to the specified partition table, service data that does not belong to an existing first partition in the specified partition table into the second partition.
In one embodiment, the apparatus further comprises a splitting module for:
splitting the second partition according to the data attribute of the first partition in the appointed partition table to obtain a split partition;
and migrating the business data in the split partition to the existing first partition with matched data attributes.
In one embodiment, the splitting module is further configured to:
detecting a data storage state in the second partition through a background thread;
and splitting the second partition according to the data attribute of the first partition in the appointed partition table when the data storage state is the existing data, so as to obtain a split partition.
In one embodiment, the splitting module is further configured to:
when the data storage state is the existing data, acquiring the working state of the database system 120 to which the specified partition table belongs;
and splitting the second partition according to the data attribute of the first partition in the appointed partition table when the working state is idle, so as to obtain a split partition.
In one embodiment, the splitting module is further configured to:
and splitting the second partition according to the data attribute of the first partition existing in the appointed partition table at the self-increment period timing in the partition creation configuration to obtain a split partition.
As shown in fig. 4, the embodiment of the present application provides a computer device, including a processor 711, a communication interface 712, a memory 713, and a communication bus 714, where the processor 711, the communication interface 712, and the memory 713 perform communication with each other through the communication bus 714;
a memory 713 for storing a computer program;
in one embodiment of the present application, the processor 711 is configured to implement the partition creating method provided in any one of the foregoing method embodiments when executing the program stored on the memory 713.
Those skilled in the art will appreciate that the structures shown in FIG. 4 are block diagrams only and do not constitute a limitation of the computer device on which the present aspects apply, and that a particular computer device may include more or less components than those shown, or may combine some of the components, or have a different arrangement of components.
In one embodiment, the partition creation apparatus 110 provided herein may be implemented in the form of a computer program that is executable on a computer device as shown in FIG. 4. The memory of the computer device may store various program modules that make up the partition creation apparatus 110, such as the acquisition module 310, creation module 320, and storage module 330 shown in fig. 3. The computer program constituted by the respective program modules causes the processor to execute the steps in the partition creating method of the respective embodiments of the present application described in the present specification.
The computer apparatus shown in fig. 4 may execute the partition creation configuration corresponding to the acquisition of the specified partition table, which is any one of the partition tables for storing the service data for the partition, through the acquisition module 310 in the partition creation device 110 shown in fig. 3. The computer device may execute by the creation module 320 to automatically create a first partition that is blank for the specified partition table at the self-increment period timing in the partition creation configuration. The computer device may perform storing, by the storage module 330, business data matching data attributes of the first partition into the first partition upon receiving the business data associated with the specified partition table.
The present application also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the partition creation method provided by any one of the method embodiments described above.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
From the above description of embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus a general purpose hardware platform, or may be implemented by hardware. Based on such understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the related art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the method described in the respective embodiments or some parts of the embodiments.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.
The foregoing is only a specific embodiment of the invention to enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A partition creation method, the method comprising:
obtaining partition creation configuration corresponding to a specified partition table, wherein the specified partition table is any partition table for storing service data in a partition;
automatically creating a blank first partition for the specified partition table according to the self-increment period timing in the partition creation configuration;
and storing the business data matched with the data attribute of the first partition into the first partition when the business data related to the appointed partition table is received.
2. The method of claim 1, wherein after the obtaining the partition creation configuration corresponding to the specified partition table, the method further comprises:
creating a blank second partition for the specified partition table according to the partition creation configuration;
and when receiving the service data related to the appointed partition table, storing the service data which does not belong to the first partition existing in the appointed partition table into the second partition.
3. The method of claim 2, wherein after the creating a second partition for the specified partition table according to the partition creation configuration, the method further comprises:
splitting the second partition according to the data attribute of the first partition in the appointed partition table to obtain a split partition;
and migrating the business data in the split partition to the existing first partition with matched data attributes.
4. The method of claim 3, wherein splitting the second partition according to the data attribute of the first partition existing in the specified partition table to obtain a split partition comprises:
detecting a data storage state in the second partition through a background thread;
and splitting the second partition according to the data attribute of the first partition in the appointed partition table when the data storage state is the existing data, so as to obtain a split partition.
5. The method of claim 4, wherein splitting the second partition according to the data attribute of the first partition in the specified partition table when the data storage state is the existing data, to obtain a split partition, comprises:
when the data storage state is the existing data, acquiring the working state of the database system to which the specified partition table belongs;
and splitting the second partition according to the data attribute of the first partition in the appointed partition table when the working state is idle, so as to obtain a split partition.
6. The method of claim 3, wherein splitting the second partition according to the data attribute of the first partition existing in the specified partition table to obtain a split partition comprises:
and splitting the second partition according to the data attribute of the first partition existing in the appointed partition table at the self-increment period timing in the partition creation configuration to obtain a split partition.
7. A partition creation apparatus, the apparatus comprising:
the system comprises an acquisition module, a storage module and a storage module, wherein the acquisition module is used for acquiring partition creation configuration corresponding to a specified partition table, wherein the specified partition table is any partition table used for storing service data in a partition;
the creating module is used for automatically creating a blank first partition for the specified partition table according to the self-increment period timing in the partition creating configuration;
and the storage module is used for storing the business data matched with the data attribute of the first partition into the first partition when receiving the business data related to the appointed partition table.
8. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any one of claims 1 to 6 when the computer program is executed by the processor.
9. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method according to any one of claims 1 to 6.
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| CN202311206355.1A CN117370337A (en) | 2023-09-18 | 2023-09-18 | Partition creation method, partition creation device, computer equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118193541A (en) * | 2024-05-15 | 2024-06-14 | 数翊科技(北京)有限公司 | Partition table creation and partition automatic expansion method based on distributed database |
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| CN118193541A (en) * | 2024-05-15 | 2024-06-14 | 数翊科技(北京)有限公司 | Partition table creation and partition automatic expansion method based on distributed database |
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