CN111125126A - Storage state management method, system, electronic equipment and storage medium - Google Patents
Storage state management method, system, electronic equipment and storage medium Download PDFInfo
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Abstract
The application discloses a storage state management method, which comprises the steps of creating a database instance corresponding to a target state object, and creating a virtual interface of the database instance; establishing a data reading method by using the virtual interface, and reading the state information of the target state object by using the data reading method; judging whether the storage state information of the target state object changes; and if so, sending corresponding storage state change information to the subscriber of the target state object. The storage state updating efficiency can be improved. The application also discloses a storage state management system, an electronic device and a storage medium, which have the beneficial effects.
Description
Technical Field
The present disclosure relates to the field of computer technologies, and in particular, to a method and a system for managing storage status, an electronic device, and a storage medium.
Background
In the field of storage technology, as the system needs to take account of both universality and compatibility, the software stack design needs to adopt a layered design so as to increase maintainability, manageability and reusability of the system. Each layer is divided into two parts, an IO processing component and a configuration management component. Where the configuration management component involves a large amount of state information, such as the volume layer, including whether a volume exists, whether a volume is online, compression of a volume, deduplication attributes, and so forth, that needs to be maintained. The states between each layer can affect each other, so that it is important to develop an efficient and reasonable state management and message passing mechanism.
The traditional state management method adopts an array, a round-robin, a timer and a callback function to manage and maintain the state, and has the defects of more complicated management, large code amount, difficult maintenance, poor real-time performance and the like. The method has the characteristics of excellent performance, high real-time performance and the like, which are required for the storage of mass data at present, and is not applicable any more. In addition, the traditional maintenance method has poor expansibility, a large number of arrays need to be defined once states need to be added, and the maintainability of the arrays is not easy to operate and overflow and other problems are easy to occur.
Therefore, how to improve the storage status update efficiency is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The application aims to provide a storage state management method, a storage state management system, an electronic device and a storage medium, which can improve the storage state updating efficiency.
In order to solve the above technical problem, the present application provides a storage state management method, including:
creating a database instance corresponding to the target state object, and creating a virtual interface of the database instance;
establishing a data reading method by using the virtual interface, and reading the state information of the target state object by using the data reading method;
judging whether the storage state information of the target state object changes;
and if so, sending corresponding storage state change information to the subscriber of the target state object.
Optionally, before creating the database instance corresponding to the target state object, the method further includes:
initializing an object database space and creating a state object database in the object database space;
accordingly, creating a database instance corresponding to the target state object includes:
creating a database instance in the state object database corresponding to the target state object.
Optionally, the method further includes:
and determining the maximum number of the instances, and setting the memory space of the state object database according to the maximum number of the instances.
Optionally, creating a virtual interface of the database instance includes:
creating a virtual interface for the database instance by defining an enumeration domain.
Optionally, after sending the corresponding storage state change information to the subscriber of the target state object, the method further includes:
judging whether the subscriber receives the storage state change information;
and if so, executing a subscription operation function of the subscriber to the target state object.
Optionally, the method further includes:
and executing a subscription operation function of the subscriber to the target state object when the corresponding storage state change information is sent to the subscriber of the target state object.
Optionally, sending the corresponding storage state change information to the subscriber of the target state object includes:
determining new data of the target state object in the database instance, generating first storage state change information comprising the new data, and sending the first storage state change information to a subscriber of the target state object, so that the subscriber executes a subscription operation function according to the first storage state change information;
or, determining original data before the target state object changes in the database instance, generating second storage state change information including the original data, and sending the second storage state change information to a subscriber of the target state object, so that the subscriber executes a subscription operation function according to the second storage state change information.
The present application also provides a storage state management system, including:
the instance creating module is used for creating a database instance corresponding to the target state object and creating a virtual interface of the database instance;
the state reading module is used for establishing a data reading method by using the virtual interface and reading the state information of the target state object by using the data reading method;
the state judgment module is used for judging whether the storage state information of the target state object changes;
and the change notification module is used for sending corresponding storage state change information to a subscriber of the target state object when the storage state information of the target state object changes.
The present application also provides a storage medium having a computer program stored thereon, which when executed implements the steps performed by the above storage state management method.
The application also provides an electronic device, which comprises a memory and a processor, wherein the memory is stored with a computer program, and the processor realizes the steps executed by the storage state management method when calling the computer program in the memory.
The application provides a storage state management method, which comprises the steps of creating a database instance corresponding to a target state object, and creating a virtual interface of the database instance; establishing a data reading method by using the virtual interface, and reading the state information of the target state object by using the data reading method; judging whether the storage state information of the target state object changes; and if so, sending corresponding storage state change information to the subscriber of the target state object.
According to the method and the device, a database instance corresponding to the target state object is created, and the state information of the target state object is read through a data reading method in a virtual interface of the database instance. And when detecting that the storage state information of the target state object changes, actively sending corresponding storage state change information to a subscriber of the target state object. Compared with the mode of carrying out storage state management by timing polling in the related technology, the method and the device are realized based on the signal transmission of the message, actively carry out state query and sending of the change information, and can improve the storage state updating efficiency. The application also provides a storage state management system, an electronic device and a storage medium, which have the beneficial effects and are not repeated herein.
Drawings
In order to more clearly illustrate the embodiments of the present application, the drawings needed for the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.
Fig. 1 is a flowchart of a storage status management method according to an embodiment of the present application;
fig. 2 is a flowchart of a message-based storage status management method according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a storage status management system according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in 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 obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, fig. 1 is a flowchart of a storage status management method according to an embodiment of the present disclosure.
The specific steps may include:
s101: creating a database instance corresponding to the target state object, and creating a virtual interface of the database instance;
in this embodiment, a database instance corresponding to the target state object may be created in the state object database. As a possible implementation manner, before creating the database instance corresponding to the target state object, the present embodiment may further initialize an object database space and create a state object database in the object database space. After the state object database is created, the maximum number of instances can be determined, and the memory space of the state object database is set according to the maximum number of instances. When the number of the existing instances of the state object database is less than the maximum number of the instances, the database instance creation operation in S101 may be performed. After obtaining the database instance, the present embodiment may create a virtual interface in the database instance, that is, create a virtual interface of the database instance.
S102: establishing a data reading method by using the virtual interface, and reading the state information of the target state object by using the data reading method;
specifically, after the virtual interface is created in S102, the present embodiment may create a custom read-write method by using the virtual interface, where the custom read-write method may query, through the domain ID, the read-write operation occurring in the physical space. By the method, all the states are maintained through the instance database, read-write, active or real-time notification and subscription are carried out, and corresponding operation functions are executed. The custom read-write method may include a data read method and/or a data write method. The data reading method in the created self-defined reading and writing method is necessary, the writing method can be defined according to the requirement, and if the reading and writing method is not defined, the default reading and writing method is directly called to directly carry out the reading and writing operation of the instance state through the index. And a user-defined read-write method is set, and context and other expansion operations can be transmitted during read-write operation.
After the data reading method is created in the virtual interface, the present embodiment may read the read-write operation occurring in the physical space by using the data reading method, and further determine the state information of the target state object.
S103: judging whether the storage state information of the target state object changes; if yes, entering S104; if not, ending the flow;
however, the purpose of this step is to read the state information of the target state object through the virtual interface, compare the state information read last with the state information read last, and if the state information of two times is different, it indicates that the storage state information of the target state object is changed, and it is necessary to perform the change information transmission operation of S103.
S104: and sending corresponding storage state change information to the subscriber of the target state object.
Based on detecting that the storage state information of the target state object changes, the step can send corresponding storage state change information to the subscriber of the target state object so as to inform the subscriber that the storage state of the target state object changes.
In this embodiment, a database instance corresponding to the target state object is first created, and the state information of the target state object is read by a data reading method in a virtual interface of the database instance. And when detecting that the storage state information of the target state object changes, actively sending corresponding storage state change information to a subscriber of the target state object. Compared with the mode of performing storage state management by timing polling in the related art, the embodiment is realized based on the signaling of the message, actively performs state query and sending of change information, and can improve the storage state updating efficiency.
As a possible implementation manner, the present embodiment may create a virtual interface of the database instance by defining an enumeration domain.
As a possible implementation manner, after sending the corresponding storage state change information to the subscriber of the target state object, this embodiment may further determine whether the subscriber receives the storage state change information; and if so, executing a subscription operation function of the subscriber to the target state object. In this embodiment, the subscription operation function of the subscriber to the target state object may be executed when the corresponding storage state change information is sent to the subscriber of the target state object.
As a possible implementation manner, the process of sending the corresponding storage state change information to the subscriber of the target state object in S104 may include the following two implementation manners:
embodiment 1, determining new data of the target state object in the database instance, generating first storage state change information including the new data, and sending the first storage state change information to a subscriber of the target state object, so that the subscriber executes a subscription operation function according to the first storage state change information;
in embodiment 2, the original data before the change of the target state object in the database instance is determined, second storage state change information including the original data is generated, and the second storage state change information is sent to the subscriber of the target state object, so that the subscriber executes a subscription operation function according to the second storage state change information.
The three possible implementation manners can be combined with the embodiment corresponding to fig. 1 to obtain a comprehensive implementation manner, an object database-message delivery-subscription notification mechanism is adopted in the comprehensive implementation manner to perform state maintenance update management, a database instance is initialized, a required memory space is opened up for a state required to be maintained, and the number of the state instances is set; adding a reading and writing method of a database instance; adding a message transfer mechanism which can respond to an execution function when a certain state changes; a notification function is added, when the state changes, the corresponding state response can be actively notified, and a manual notification function is set; and adding a subscription mechanism, and when the subscribed state changes, executing a subscription function by all subscribers and executing corresponding operation. By the mechanism, the real-time updating and real-time notification of the state can be ensured, and the system maintenance performance is improved. Meanwhile, a flexible read-write operation function and an instance index are set, a user can write the read-write function according to needs during development to perform read-write operation on the database instance, and the use method is more flexible. In addition, compared with the searching performance of a timing wheel, the signal transmission based on the message has better performance, and the real-time quick performance is ensured. By the method, long-time waiting operation of various states is avoided for state management and maintenance, so that configuration management is simpler and more efficient.
The flow described in the above embodiment is explained below by an embodiment in practical use.
Firstly, initializing an object database space, creating a state object database, opening up an actual memory space according to the number of instances, setting the maximum cardinality of the instances, performing instance value operation through indexes in the cardinality range, and setting an initial value of the instances. This step requires that all states that need to be maintained be initialized and can be operated after the initialization is completed. Secondly, creating a virtual database instance for each state object to be managed, creating a virtual interface in the actual database instance created in the first step through a definition enumeration domain, creating a self-defined read-write method through the virtual interface, and inquiring an actual physical space through a domain ID for actual operation to perform read-write operation. Thus, all states are maintained through the instance database, read and write are carried out, active or real-time notification and subscription are carried out, and corresponding operation functions are executed. And then, creating a self-defined read-write method, wherein the read method is necessary, the write method can be defined according to the requirement, and if the read-write method is not defined, the default read-write method is directly called to directly carry out the read-write operation of the instance state through the index. And a user-defined read-write method is set, and context and other expansion operations can be transmitted during read-write operation. Finally, a message-based notification and subscription mechanism is defined, each instance being able to notify all subscribers to perform a subscription function when a change occurs. The method comprises two modes: one is active notification, which is to send a notification message through a notification function after meeting the conditions (the part is also divided into two modes, one is to carry new data, namely the notification carries the new data, at the moment, the value of the database instance is not changed, but the new data is needed to participate in calculation, and the old data is also needed to participate in calculation, but the new data is not carried, the notification is only sent, the calculation is completely carried out through the old data), and all subscribers execute the subscription function after receiving the message; and secondly, real-time notification, namely immediately executing the operation of executing response by the subscription function when the instance value changes after the subscription is added to the database instance.
Referring to fig. 2, fig. 2 is a flowchart of a message-based storage status management method according to an embodiment of the present application, which specifically includes the following steps:
step 1: when the storage system is initialized, creating all object database spaces, determining the maximum cardinal number of object instances, and opening up an actual memory space according to the number of the instances;
step 2: creating a virtual interface through a defined enumeration domain in the actual database instance created in the step 1;
and step 3: the operation of instance values can be carried out through indexes in a base number range through a virtual interface, and an instance initial value is set;
and 4, step 4: creating a default reading and writing method, and directly performing reading and writing operation on the object database space;
and 5: and creating a self-defined read-write method, wherein the read method is necessary, the write method can be defined according to needs, and if the read-write method is not defined, the default read-write method is directly called to directly carry out the read-write operation of the instance state through the index. A user-defined read-write method is set, and context and other expansion operations can be transmitted during read-write operation;
step 6: creating a self-defined subscription execution function;
and 7: defining a notification and subscription mechanism based on messages, wherein each object instance can notify all subscribers to execute a subscription operation function when changes occur;
and 8: the active message notification, send the notice message through the notice function after meeting the condition (this part also divides into two kinds of ways, first, bring new data, namely bring new data while notifying, the value of the database instance has not changed at this moment, but need new data to participate in the calculation, also need old data to participate in the calculation;
and step 9: and after the subscription is added to the database instance, and when the instance value changes, the notification message is sent, and the operation of executing the response by the subscription function is immediately executed.
The embodiment adopts an object database-message transmission-subscription notification mechanism to maintain and update the state, initializes the database instance, creates the required memory space for the state to be maintained, and sets the number of the state instances; adding a reading and writing method of a database instance; adding a message transfer mechanism which can respond to an execution function when a certain state changes; a notification function is added, when the state changes, the corresponding state response can be actively notified, and a manual notification function is set; and adding a subscription mechanism, and when the subscribed state changes, executing a subscription function by all subscribers and executing corresponding operation. By the mechanism, the real-time updating and real-time notification of the state can be ensured, and the system maintenance performance is improved. Meanwhile, a flexible read-write operation function and an instance index are set, a user can write the read-write function according to needs during development to perform read-write operation on the database instance, and the use method is more flexible.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a storage status management system according to an embodiment of the present application;
the system may include:
an instance creating module 100, configured to create a database instance corresponding to the target state object, and create a virtual interface of the database instance;
a status reading module 200, configured to create a data reading method in the virtual interface, and read status information of the target status object by using the data reading method;
a state judgment module 300, configured to judge whether storage state information of the target state object changes;
a change notification module 400, configured to send corresponding storage state change information to a subscriber of the target state object when the storage state information of the target state object changes.
In this embodiment, a database instance corresponding to the target state object is first created, and the state information of the target state object is read by a data reading method in a virtual interface of the database instance. And when detecting that the storage state information of the target state object changes, actively sending corresponding storage state change information to a subscriber of the target state object. Compared with the mode of performing storage state management by timing polling in the related art, the embodiment is realized based on the signaling of the message, actively performs state query and sending of change information, and can improve the storage state updating efficiency.
Further, the method also comprises the following steps:
a database creating module for initializing an object database space and creating a state object database in the object database space before creating a database instance corresponding to the target state object;
accordingly, instance creation module 100 is configured to create a database instance in the state object database that corresponds to the target state object.
Further, the method also comprises the following steps:
and the quantity setting module is used for determining the maximum number of the examples and setting the memory space of the state object database according to the maximum number of the examples.
Further, the instance creation module 100 includes:
and the interface creating unit is used for creating a virtual interface of the database instance through the definition enumeration domain.
Further, the method also comprises the following steps:
the information receiving and judging module is used for judging whether the subscriber receives the storage state change information after sending the corresponding storage state change information to the subscriber of the target state object; and if so, executing a subscription operation function of the subscriber to the target state object.
Further, the method also comprises the following steps:
and the subscription operation execution module is used for executing a subscription operation function of the subscriber to the target state object when sending the corresponding storage state change information to the subscriber of the target state object.
Further, the change notification module 300 includes:
a first notification unit, configured to determine new data of the target state object in the database instance, generate first storage state change information including the new data, and send the first storage state change information to a subscriber of the target state object, so that the subscriber executes a subscription operation function according to the first storage state change information;
or, the second notification unit is configured to determine original data before the change of the target state object in the database instance, generate second storage state change information including the original data, and send the second storage state change information to a subscriber of the target state object, so that the subscriber executes a subscription operation function according to the second storage state change information.
Since the embodiment of the system part corresponds to the embodiment of the method part, the embodiment of the system part is described with reference to the embodiment of the method part, and is not repeated here.
The present application also provides a storage medium having a computer program stored thereon, which when executed, may implement the steps provided by the above-described embodiments. The storage medium may include: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The application further provides an electronic device, which may include a memory and a processor, where the memory stores a computer program, and the processor may implement the steps provided by the foregoing embodiments when calling the computer program in the memory. Of course, the electronic device may also include various network interfaces, power supplies, and the like.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the system disclosed by the embodiment, the description is relatively simple because the system corresponds to the method disclosed by the embodiment, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A storage state management method, comprising:
creating a database instance corresponding to the target state object, and creating a virtual interface of the database instance;
establishing a data reading method by using the virtual interface, and reading the state information of the target state object by using the data reading method;
judging whether the storage state information of the target state object changes;
and if so, sending corresponding storage state change information to the subscriber of the target state object.
2. The storage state management method according to claim 1, further comprising, before creating the database instance corresponding to the target state object:
initializing an object database space and creating a state object database in the object database space;
accordingly, creating a database instance corresponding to the target state object includes:
creating a database instance in the state object database corresponding to the target state object.
3. The storage status management method according to claim 2, further comprising:
and determining the maximum number of the instances, and setting the memory space of the state object database according to the maximum number of the instances.
4. The storage state management method of claim 1, wherein creating the virtual interface for the database instance comprises:
creating a virtual interface for the database instance by defining an enumeration domain.
5. The storage status management method according to claim 1, further comprising, after sending the corresponding storage status change information to the subscriber of the target status object:
judging whether the subscriber receives the storage state change information;
and if so, executing a subscription operation function of the subscriber to the target state object.
6. The storage status management method according to claim 1, further comprising:
and executing a subscription operation function of the subscriber to the target state object when the corresponding storage state change information is sent to the subscriber of the target state object.
7. The storage state management method according to any one of claims 1 to 6, wherein sending corresponding storage state change information to a subscriber of the target state object comprises:
determining new data of the target state object in the database instance, generating first storage state change information comprising the new data, and sending the first storage state change information to a subscriber of the target state object, so that the subscriber executes a subscription operation function according to the first storage state change information;
or, determining original data before the target state object changes in the database instance, generating second storage state change information including the original data, and sending the second storage state change information to a subscriber of the target state object, so that the subscriber executes a subscription operation function according to the second storage state change information.
8. A storage state management system, comprising:
the instance creating module is used for creating a database instance corresponding to the target state object and creating a virtual interface of the database instance;
the state reading module is used for establishing a data reading method by using the virtual interface and reading the state information of the target state object by using the data reading method;
the state judgment module is used for judging whether the storage state information of the target state object changes;
and the change notification module is used for sending corresponding storage state change information to a subscriber of the target state object when the storage state information of the target state object changes.
9. An electronic device comprising a memory in which a computer program is stored and a processor which, when calling the computer program in the memory, implements the steps of the storage state management method according to any one of claims 1 to 7.
10. A storage medium having stored thereon computer-executable instructions which, when loaded and executed by a processor, carry out the steps of a storage state management method according to any one of claims 1 to 7.
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| CN112035572A (en) * | 2020-08-21 | 2020-12-04 | 西安寰宇卫星测控与数据应用有限公司 | Static method, device, computer equipment and storage medium for creating table instance |
| CN112035572B (en) * | 2020-08-21 | 2024-03-12 | 西安寰宇卫星测控与数据应用有限公司 | Static method, device, computer equipment and storage medium for creating form instance |
| CN112269720A (en) * | 2020-10-14 | 2021-01-26 | 苏州浪潮智能科技有限公司 | Asynchronous state change notification method, system and device |
| CN112269720B (en) * | 2020-10-14 | 2022-07-15 | 苏州浪潮智能科技有限公司 | Asynchronous state change notification method, system and device |
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