CN111371851A - Connection method, connection device, electronic equipment and storage medium - Google Patents
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- H—ELECTRICITY
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- H04L67/00—Network arrangements or protocols for supporting network services or applications
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- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
- G06F9/5005—Allocation of resources, e.g. of the central processing unit [CPU] to service a request
- G06F9/5011—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resources being hardware resources other than CPUs, Servers and Terminals
- G06F9/5016—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resources being hardware resources other than CPUs, Servers and Terminals the resource being the memory
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The application discloses a connection method, a connection device, an electronic device and a computer readable storage medium, wherein the method comprises the following steps: determining a target volume corresponding to the storage equipment end, and acquiring basic information of the target volume from a distributed storage cluster; wherein the basic information includes a volume size and a volume identification; acquiring a configuration file, and setting configuration parameters of a memory according to the configuration file so as to carry out incomplete initialization on a block device handle; and when a connection request of a client is received, the block device handle is completely initialized based on the configuration parameters, so that the client can access the target volume through the block device handle. Therefore, the connection method provided by the application reduces unnecessary resource occupation in the mapping creation process, reduces waiting time and improves the bearing capacity of the system.
Description
Technical Field
The present application relates to the field of computer technologies, and in particular, to a connection method and apparatus, an electronic device, and a computer-readable storage medium.
Background
iSCSI (Chinese full name: Small computer system Interface, English full name: Internet Small computer System Interface) is mainly characterized in that a distributed block storage device end is made into a server end capable of providing a disk through an iSCSI target function through a TCP/IP technology, and is made into a client end capable of hanging the iSCSI target through an iSCSI initiator function, so that the disk can be applied through an iSCSI protocol.
That is, the iSCSI architecture mainly divides the storage device and the used host into two parts, namely iSCSI target and iSCSI initiator (client of target).
The client can establish connection with the storage equipment end through the above ways to access the underlying library file, so as to realize the operation of block storage. In the related art, when creating a mapping, the tgt program in the storage device establishes a connection between the lib library and the cluster, opens the corresponding volume, and stores information and handles of the corresponding volume into the memory for use when connecting with the client. In this case, a large amount of time is consumed when a large number of volumes are created, and system resources are wasted storing unnecessary data.
Therefore, how to reduce the consumption of system resources in the map creation process is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The application aims to provide a connection method, a connection device, an electronic device and a computer readable storage medium, which reduce the consumption of system resources in the mapping creation process.
In order to achieve the above object, the present application provides a connection method applied to a storage device, including:
determining a target volume corresponding to the storage equipment end, and acquiring basic information of the target volume from a distributed storage cluster; wherein the basic information includes a volume size and a volume identification;
acquiring a configuration file, and setting configuration parameters of a memory according to the configuration file so as to carry out incomplete initialization on a block device handle;
and when a connection request of a client is received, the block device handle is completely initialized based on the configuration parameters, so that the client can access the target volume through the block device handle.
Wherein the fully initializing the block device handle based on the configuration parameters comprises:
writing the user information of the client into a metadata object database of the distributed storage cluster;
acquiring snapshot information of the target volume from the metadata object database, and writing the snapshot information into a memory;
and acquiring the metadata information of the target volume from a metadata object database according to the configuration parameters so as to completely initialize the block device handle based on the metadata information.
The configuration parameters comprise a first parameter for describing whether a parent volume needs to be loaded, a second parameter for describing whether an exclusive lock module needs to be initialized, a third parameter for describing whether an object state bitmap needs to be initialized, and a fourth parameter for describing whether a remote control mode needs to be started.
Wherein, still include:
and in the process of completely initializing the block device handle, if a write request of the client is received, adding the write request into a queue.
In order to achieve the above object, the present application provides a connecting device applied to a storage device, including:
an obtaining module, configured to determine a target volume corresponding to the storage device side, and obtain basic information of the target volume from a distributed storage cluster; wherein the basic information includes a volume size and a volume identification;
the incomplete initialization module is used for acquiring a configuration file and setting configuration parameters of a memory according to the configuration file so as to carry out incomplete initialization on a block device handle;
and the complete initialization module is used for completely initializing the block device handle based on the configuration parameters when receiving a connection request of a client so that the client can access the target volume through the block device handle.
Wherein the full initialization module comprises:
the writing unit is used for writing the user information of the client into a metadata object database of the distributed storage cluster when receiving a connection request of the client;
a first obtaining unit, configured to obtain snapshot information of the target volume from the metadata object database, and write the snapshot information into a memory;
and the second acquisition unit is used for acquiring the metadata information of the target volume from a metadata object database according to the configuration parameters so as to completely initialize the block device handle based on the metadata information.
The configuration parameters comprise a first parameter for describing whether a parent volume needs to be loaded, a second parameter for describing whether an exclusive lock module needs to be initialized, a third parameter for describing whether an object state bitmap needs to be initialized, and a fourth parameter for describing whether a remote control mode needs to be started.
Wherein, still include:
and the adding module is used for adding the write request into the queue if the write request of the client is received in the process of completely initializing the block device handle.
To achieve the above object, the present application provides an electronic device including:
a memory for storing a computer program;
a processor for implementing the steps of the above-described connection method when executing the computer program.
To achieve the above object, the present application provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the above-described connection method.
According to the scheme, the connection method provided by the application comprises the following steps: determining a target volume corresponding to the storage equipment end, and acquiring basic information of the target volume from a distributed storage cluster; wherein the basic information includes a volume size and a volume identification; acquiring a configuration file, and setting configuration parameters of a memory according to the configuration file so as to carry out incomplete initialization on a block device handle; and when a connection request of a client is received, the block device handle is completely initialized based on the configuration parameters, so that the client can access the target volume through the block device handle.
According to the connection method, the block device handle is not completely initialized in the mapping creation process, the waiting time is shortened, and the resource overhead of saving useless information is reduced. When the client is connected, the handle of the block device is completely initialized. Therefore, the connection method provided by the application reduces unnecessary resource occupation in the mapping creation process, reduces waiting time and improves the bearing capacity of the system. The application also discloses a connecting device, an electronic device and a computer readable storage medium, which can also achieve the technical effects.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
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In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts. The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a flow chart illustrating a method of connection according to an exemplary embodiment;
FIG. 2 is a flow chart illustrating another method of connection according to an exemplary embodiment;
FIG. 3 is a block diagram illustrating a coupling device according to an exemplary embodiment;
FIG. 4 is a block diagram illustrating an electronic device in accordance with an exemplary embodiment.
Detailed Description
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 only a part of the embodiments of the present application, and not all of the 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.
The embodiment of the application discloses a connection method, which reduces the consumption of system resources in the mapping creation process.
Referring to fig. 1, a flow chart of a method of connection is shown according to an exemplary embodiment, as shown in fig. 1, including:
s101: determining a target volume corresponding to the storage equipment end, and acquiring basic information of the target volume from a distributed storage cluster; wherein the basic information includes a volume size and a volume identification;
the execution subject of this embodiment is a storage device side, and the purpose is to initialize a block device handle, so that a client accesses a distributed storage cluster by using the block device handle. In this step, a target volume corresponding to the storage device end in the distributed storage cluster is first determined, specifically, a request is sent to a disk in the distributed storage cluster, an identifier of the target volume is obtained from a name object, a metadata object name is obtained from the identifier, a read request is sent to the disk, and basic information of the target volume is obtained, which mainly includes a volume size and a volume identifier.
S102: acquiring a configuration file, and setting configuration parameters of a memory according to the configuration file so as to carry out incomplete initialization on a block device handle;
in this step, the configuration file is read, and the parameters in the configuration file are set in the memory, so that the incomplete initialization of the block device handle is completed, that is, the mapping creation process is completed.
The configuration parameters herein may include a first parameter describing whether the parent volume needs to be loaded, a second parameter describing whether the exclusive lock module needs to be initialized, a third parameter describing whether the object status bitmap needs to be initialized, a fourth parameter describing whether the remote control mode needs to be started, and the like.
S103: and when a connection request of a client is received, the block device handle is completely initialized based on the configuration parameters, so that the client can access the target volume through the block device handle.
In this step, after a client connection request is monitored, block device information is acquired, and a block device handle is completed through multithreading asynchronization for complete initialization, so that a client can access a target volume in a distributed storage cluster through the block device handle.
Specifically, the step may include: writing the user information of the client into a metadata object database of the distributed storage cluster; acquiring snapshot information of the target volume from the metadata object database, and writing the snapshot information into a memory; and acquiring the metadata information of the target volume from a metadata object database according to the configuration parameters so as to completely initialize the block device handle based on the metadata information.
In specific implementation, when a connection request of a client is received, an observer is registered, that is, user information of the client is packaged and written into a metadata object database of a distributed storage cluster, snapshot information in a metadata object association database is obtained, and the snapshot information is stored in a memory. And judging whether parent volume information is loaded or not according to the first parameter, if so, creating and initializing a parent volume handle, judging whether an exclusive lock module needs to be initialized or not according to the second parameter, if so, creating initialized exclusive lock data, judging whether an object state bitmap needs to be initialized or not according to the third parameter, if so, reading a bottom layer object state bitmap, judging whether a remote control mode needs to be started or not according to the fourth parameter, and if so, setting a journal relevant flag.
As a preferred embodiment, this embodiment further includes: and in the process of completely initializing the block device handle, if a write request of the client is received, adding the write request into a queue. In a specific implementation, a user's write requests are blocked, and a flag is set to enqueue the write requests.
According to the connection method provided by the embodiment of the application, the block device handle is not completely initialized in the mapping creation process, the waiting time is shortened, and the resource overhead of saving useless information is reduced. When the client is connected, the handle of the block device is completely initialized. Therefore, the connection method provided by the embodiment of the application reduces unnecessary resource occupation in the mapping creation process, reduces waiting time and improves the bearing capacity of the system.
The embodiment of the application discloses a connection method, and compared with the previous embodiment, the embodiment further explains and optimizes the technical scheme. Specifically, the method comprises the following steps:
referring to fig. 2, a flow chart of another connection method according to an exemplary embodiment is shown, as shown in fig. 2, including:
s201: determining a target volume corresponding to the storage equipment end, and acquiring basic information of the target volume from a distributed storage cluster; wherein the basic information includes a volume size and a volume identification;
s202: acquiring a configuration file, and setting configuration parameters of a memory according to the configuration file so as to carry out incomplete initialization on a block device handle;
s203: when a connection request of a client is received, writing user information of the client into a metadata object database of the distributed storage cluster;
s204: acquiring snapshot information of the target volume from the metadata object database, and writing the snapshot information into a memory;
s205: and acquiring the metadata information of the target volume from a metadata object database according to the configuration parameters so as to completely initialize the block device handle based on the metadata information.
The embodiment simplifies the information acquisition and storage processes in the mapping creation, deletes redundant information acquisition processes, and reduces resource occupation. And modifying the mapping creation process, and incompletely initializing the corresponding block device handle when creating the mapping, so as to reduce the waiting time. And after a client connection request is monitored, finishing the residual initialization action through multi-thread asynchronous operation, and acquiring block equipment information. Therefore, the embodiment provides a distributed block service resource optimization method based on the existing distributed storage system, reduces unnecessary resource occupation, and improves the bearing capacity of the system.
A connection device provided by an embodiment of the present application will be described below, and a connection device described below and a connection method described above may be referred to each other.
Referring to fig. 3, a block diagram of a coupling device according to an exemplary embodiment is shown, as shown in fig. 3, including:
an obtaining module 301, configured to determine a target volume corresponding to the storage device end, and obtain basic information of the target volume from a distributed storage cluster; wherein the basic information includes a volume size and a volume identification;
an incomplete initialization module 302, configured to obtain a configuration file, and set configuration parameters of a memory according to the configuration file, so as to perform incomplete initialization on a block device handle;
a complete initialization module 303, configured to, when a connection request of a client is received, perform complete initialization on the block device handle based on the configuration parameter, so that the client accesses the target volume through the block device handle.
The connection device provided by the embodiment of the application does not completely initialize the handle of the block device in the mapping creation process, shortens the waiting time and reduces the resource overhead of saving useless information. When the client is connected, the handle of the block device is completely initialized. Therefore, the connecting device provided by the embodiment of the application reduces unnecessary resource occupation in the mapping creation process, reduces waiting time and improves the bearing capacity of the system.
On the basis of the foregoing embodiment, as a preferred implementation manner, the full initialization module 303 includes:
the writing unit is used for writing the user information of the client into a metadata object database of the distributed storage cluster when receiving a connection request of the client;
a first obtaining unit, configured to obtain snapshot information of the target volume from the metadata object database, and write the snapshot information into a memory;
and the second acquisition unit is used for acquiring the metadata information of the target volume from a metadata object database according to the configuration parameters so as to completely initialize the block device handle based on the metadata information.
On the basis of the above embodiment, as a preferred implementation manner, the configuration parameters include a first parameter describing whether a parent volume needs to be loaded, a second parameter describing whether an exclusive lock module needs to be initialized, a third parameter describing whether an object status bitmap needs to be initialized, and a fourth parameter describing whether a remote control mode needs to be started.
On the basis of the above embodiment, as a preferred implementation, the method further includes:
and the adding module is used for adding the write request into the queue if the write request of the client is received in the process of completely initializing the block device handle.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
The present application further provides an electronic device, and referring to fig. 4, a structure diagram of an electronic device 400 provided in an embodiment of the present application, as shown in fig. 4, may include a processor 11 and a memory 12. The electronic device 400 may also include one or more of a multimedia component 13, an input/output (I/O) interface 14, and a communication component 15.
The processor 11 is configured to control the overall operation of the electronic device 400, so as to complete all or part of the steps in the connection method. The memory 12 is used to store various types of data to support operation at the electronic device 400, such as instructions for any application or method operating on the electronic device 400 and application-related data, such as contact data, transmitted and received messages, pictures, audio, video, and so forth. The Memory 12 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk or optical disk. The multimedia component 13 may include a screen and an audio component. Wherein the screen may be, for example, a touch screen and the audio component is used for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may further be stored in the memory 12 or transmitted via the communication component 15. The audio assembly also includes at least one speaker for outputting audio signals. The I/O interface 14 provides an interface between the processor 11 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 15 is used for wired or wireless communication between the electronic device 400 and other devices. Wireless communication, such as Wi-Fi, bluetooth, Near Field Communication (NFC), 2G, 3G or 4G, or a combination of one or more of them, so that the corresponding communication component 15 may include: Wi-Fi module, bluetooth module, NFC module.
In an exemplary embodiment, the electronic Device 400 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for performing the above-described connection method.
In another exemplary embodiment, a computer readable storage medium comprising program instructions which, when executed by a processor, implement the steps of the above-described connection method is also provided. For example, the computer readable storage medium may be the memory 12 described above comprising program instructions executable by the processor 11 of the electronic device 400 to perform the connection method described above.
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. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, 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 connection method is applied to a storage device side and comprises the following steps:
determining a target volume corresponding to the storage equipment end, and acquiring basic information of the target volume from a distributed storage cluster; wherein the basic information includes a volume size and a volume identification;
acquiring a configuration file, and setting configuration parameters of a memory according to the configuration file so as to carry out incomplete initialization on a block device handle;
and when a connection request of a client is received, the block device handle is completely initialized based on the configuration parameters, so that the client can access the target volume through the block device handle.
2. The connection method according to claim 1, wherein the fully initializing the block device handle based on the configuration parameters comprises:
writing the user information of the client into a metadata object database of the distributed storage cluster;
acquiring snapshot information of the target volume from the metadata object database, and writing the snapshot information into a memory;
and acquiring the metadata information of the target volume from a metadata object database according to the configuration parameters so as to completely initialize the block device handle based on the metadata information.
3. The connection method according to claim 2, wherein the configuration parameters include a first parameter describing whether the parent volume needs to be loaded, a second parameter describing whether the exclusive lock module needs to be initialized, a third parameter describing whether the object status bitmap needs to be initialized, and a fourth parameter describing whether the remote control mode needs to be started.
4. The connecting method according to claim 1, further comprising:
and in the process of completely initializing the block device handle, if a write request of the client is received, adding the write request into a queue.
5. A connecting device, which is applied to a storage device end, comprises:
an obtaining module, configured to determine a target volume corresponding to the storage device side, and obtain basic information of the target volume from a distributed storage cluster; wherein the basic information includes a volume size and a volume identification;
the incomplete initialization module is used for acquiring a configuration file and setting configuration parameters of a memory according to the configuration file so as to carry out incomplete initialization on a block device handle;
and the complete initialization module is used for completely initializing the block device handle based on the configuration parameters when receiving a connection request of a client so that the client can access the target volume through the block device handle.
6. The connection device according to claim 5, wherein the full initialization module comprises:
the writing unit is used for writing the user information of the client into a metadata object database of the distributed storage cluster when receiving a connection request of the client;
a first obtaining unit, configured to obtain snapshot information of the target volume from the metadata object database, and write the snapshot information into a memory;
and the second acquisition unit is used for acquiring the metadata information of the target volume from a metadata object database according to the configuration parameters so as to completely initialize the block device handle based on the metadata information.
7. The connection apparatus according to claim 6, wherein the configuration parameters include a first parameter describing whether the parent volume needs to be loaded, a second parameter describing whether the exclusive lock module needs to be initialized, a third parameter describing whether the object status bitmap needs to be initialized, and a fourth parameter describing whether the remote control mode needs to be started.
8. The connecting device according to claim 5, further comprising:
and the adding module is used for adding the write request into the queue if the write request of the client is received in the process of completely initializing the block device handle.
9. An electronic device, comprising:
a memory for storing a computer program;
processor for implementing the steps of the connection method according to any one of claims 1 to 4 when executing said computer program.
10. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the connecting method according to any one of claims 1 to 4.
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| CN112463690A (en) * | 2020-12-01 | 2021-03-09 | 苏州臻迪智能科技有限公司 | Method and device for realizing data transmission |
| CN112860625A (en) * | 2021-02-01 | 2021-05-28 | 北京小米移动软件有限公司 | Data acquisition method, data storage method, device, equipment and storage medium |
| CN113703679A (en) * | 2021-08-23 | 2021-11-26 | 北京明略昭辉科技有限公司 | Method, system, electronic device and medium for realizing data consistency |
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| CN112860625A (en) * | 2021-02-01 | 2021-05-28 | 北京小米移动软件有限公司 | Data acquisition method, data storage method, device, equipment and storage medium |
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