CN111552438B - Method, device, server and storage medium for writing object - Google Patents

Abstract

The embodiment of the invention discloses a method, a device, a server and a storage medium for writing an object. Wherein the method comprises the following steps: searching the associated directory of the write directory designated by the object to be written in at each upward directory level; and if the specified writing quantity of the object to be written is smaller than the remaining permission quota of the writing directory and smaller than the remaining permission quota of the associated directory, writing the object to be written into the writing directory. According to the technical scheme provided by the embodiment of the invention, the object to be written can uniformly meet the quota requirements of the appointed writing catalogue and each associated catalogue, the situation that the quota requirements of the writing catalogue are met and exceed the quota requirements of a certain associated catalogue under the upward catalogue level is prevented, the remaining permission quotas of the writing catalogue and the associated catalogue are limited, the excessive writing of different objects to a single catalogue can be effectively avoided, and the suitability of the writing of the objects under different catalogues is improved.

Description

A method, device, server and storage medium for object writing

technical field

The embodiments of the present invention relate to the technical field of data processing, and in particular, to a method, device, server and storage medium for object writing.

Background technique

With the gradual increase in the storage of multimedia files, Ceph is one of the file system options for the Linux system. Ceph File System (CephFS) is usually used to store various system files operated by the client to different levels of the system. In the directory, when multiple clients write files to the system directory under CephFS, there may be a problem that a certain directory is overused and the space of other directories is wasted, so there is a requirement for directory quotas in the file system.

At present, the client will access CephFS by means of kernel mounting and user space file system (File System in UserSpace, FUSE) mounting. At this time, when the kernel is mounted, the client function will be integrated into the Linux kernel, which cannot be controlled. The quota of CephFS in the system directory; when FUSE is mounted, the corresponding quota checking logic will be directly embedded in the FUSE client to control the quota of each system directory under CephFS, but the FUSE client needs to start a user space process to provide A file access interface is used to set the quota. At this time, the access path of the system directory is long, resulting in poor quota performance.

Contents of the invention

Embodiments of the present invention provide a method, device, server and storage medium for object writing, which avoid excessive writing of different objects to a single directory, and improve the adaptability of object writing in different directories.

In a first aspect, an embodiment of the present invention provides a method for writing an object, the method comprising:

Find out the associated directory under each upper directory level of the write directory specified by the object to be written;

If the specified write amount of the object to be written is less than the remaining quota of the write directory and is smaller than the remaining quota of the associated directory, write the object to be written into the write directory Down.

In the second aspect, an embodiment of the present invention provides an object writing device, which includes:

The directory search module is used to find out the associated directory under each directory level of the write directory specified by the object to be written;

An object writing module, configured to write the object to be written if the specified write amount of the object to be written is less than the remaining allowance quota of the write directory and less than the remaining allowance quota of the associated directory. Enter the write directory.

In a third aspect, an embodiment of the present invention provides a server, and the server includes:

one or more processors;

storage means for storing one or more programs;

When the one or more programs are executed by the one or more processors, the one or more processors implement the object writing method described in any embodiment of the present invention.

In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the object writing method described in any embodiment of the present invention is implemented.

A method, device, server, and storage medium for writing an object provided by an embodiment of the present invention firstly find out the associated directories under each upper directory level of the writing directory currently specified by the object to be written. When the specified write volume of the object is less than the remaining quota of the write directory and the remaining quota of each associated directory, the object to be written is written to the write directory, so that the objects to be written can be unified Meet the quota requirements of the specified write directory and each associated directory, prevent the situation that the quota requirements of the write directory are met, but exceed the quota requirements of an associated directory under the upper directory level, and limit the write directory and associated directories at the same time The remaining license quota can effectively avoid excessive writing of different objects to a single directory, and improve the adaptability of writing objects in different directories.

Description of drawings

Other characteristics, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

FIG. 1A is a flowchart of a method for writing an object according to Embodiment 1 of the present invention;

FIG. 1B is a schematic diagram of the principle of the object writing process provided by Embodiment 1 of the present invention;

FIG. 2A is a flowchart of a method for writing an object according to Embodiment 2 of the present invention;

FIG. 2B is a schematic diagram of the principle of determining the remaining license quota of the write directory and each associated directory in the method provided by Embodiment 2 of the present invention;

FIG. 3A is a flowchart of a method for writing an object according to Embodiment 3 of the present invention;

FIG. 3B is a schematic diagram of the principle of the object writing process provided by Embodiment 3 of the present invention;

FIG. 4 is a schematic structural diagram of an object writing device provided in Embodiment 4 of the present invention;

FIG. 5 is a schematic structural diagram of a server provided in Embodiment 5 of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures. In addition, the embodiments and the features in the embodiments of the present invention can be combined with each other under the condition of no conflict.

The embodiment of the present invention is mainly aimed at the existing CephFS system, when the client performs the corresponding write operation (such as writing a new file in the CephFS system, creating a new directory or creating a file soft and hard link, etc.), due to different There is a corresponding quota defect when setting quotas for the system directory in the mount mode, which leads to the problem of excessive writing in a certain directory. The corresponding quota information is set for the corresponding directory without any changes to the client, and only when the specified write volume of the object to be written is less than the remaining allowed quota of the currently specified write directory, and is less than the write directory in each direction When the remaining quota of the associated directory at the directory level is exceeded, the object to be written is written to the write directory, so that the object to be written can uniformly meet the quota requirements of the write directory and each associated directory, effectively avoiding different objects. Excessive writing to a single directory improves the adaptability of object writing in different directories.

Embodiment one

FIG. 1A is a flow chart of a method for writing an object according to Embodiment 1 of the present invention. This embodiment is applicable to writing any object under the system directory of various file systems. The object writing method provided in this embodiment can be executed by the object writing device provided in the embodiment of the present invention, and the device can be realized by means of software and/or hardware, and integrated in the server executing the method. The server may be a metadata server for processing metadata of various objects in the file system.

Specifically, referring to FIG. 1A, the method may include the following steps:

S110, find out the associated directory under each upper directory level of the write directory specified by the object to be written.

Specifically, this embodiment is mainly aimed at the client performing corresponding write operations in each system directory of the CephFS system. At this time, the object to be written is any target that the client specifies to write in a certain directory, such as a newly created At the same time, when initializing the CephFS system, the corresponding directory levels will be preset according to the writing requirements of different objects, and corresponding system directories will be created under different directory levels, such as CephFS system The entire object storage area is the first-level directory, create multiple subdirectories under the first-level directory as the second-level directory, and create multiple subdirectories under each second-level directory as the third-level directory , and so on, so that there is a corresponding upper-lower relationship between the various directories under the CephFS system; at this time, the client can indicate to write the corresponding object under any specific directory under the CephFS system, and this specific directory is used as the in the write directory.

Optionally, after the client performs a corresponding write operation in a certain directory of the CephFS system, the MDS server will first analyze the object to be written specified by the client in this operation, such as a newly created directory, file or file Soft and hard links, etc., as shown in Figure 1B, at the same time find out the currently designated writing directory of the object to be written in each directory of the CephFS system, and then start from the directory level where the writing directory is located, and check each directory upwards in sequence level, so as to search for the target directory containing the write directory under each upward directory level of the write directory, as the associated directory of the write directory under each upward directory level in this embodiment.

Exemplarily, if the client currently indicates to write a new file under a specific directory under the third-level directory of the CephFS system, the new file is the object to be written in this embodiment, and the specific directory It is the writing directory in this embodiment, and the directory containing the specific directory under the first-level directory and the second-level directory is the associated directory in this embodiment.

S120, if the specified writing amount of the object to be written is less than the remaining quota of the writing directory and is smaller than the remaining quota of the associated directory, write the object to be written into the writing directory.

Optionally, in order to avoid excessive writing by the client in a certain directory of the CephFS system, this embodiment will pre-set corresponding quotas for each directory under different directory levels, so as to require the amount of object data written in this directory The quota set under this directory cannot be exceeded; at this time, each directory under different directory levels will match the corresponding remaining license quota according to the quota under the directory and the amount of object data written. When writing the corresponding object, it is first necessary to analyze whether the amount of data currently written meets the requirements of the remaining license quota under the corresponding directory, so as to prevent excessive writing of a certain directory.

Specifically, in order to improve the adaptability of different objects written in each directory, the MDS server will first calculate the associated directories under the directory level specified by the object to be written after finding out the The writing directory currently specified by the input object and the remaining quota of each associated directory found at the current moment. At this time, since the writing directory specified by the object to be written belongs to a subdirectory under each associated directory, if the subsequent When the object to be written is written to the write directory, the amount of written data in the write directory and each associated directory will increase accordingly. Therefore, when the object to be written is written to the currently specified Before writing to the directory, in order to avoid excessive writing of a certain directory, first analyze the specified write amount of the object to be written in this operation, and sequentially determine whether the specified write amount of the object to be written is less than the write directory and the remaining license quota of each associated directory, that is, to judge whether there is an amount of data written in a certain directory in the write directory and each associated directory if the object to be written is subsequently written to the write directory Exceeding the set quota makes the directory excessively write objects; if the specified write volume of the object to be written is less than the remaining license quota of the write directory and the remaining license quota of each associated directory, it means that the write directory There is remaining space in each associated directory to write the object to be written. If there is no problem of overwriting in a certain directory, the object to be written is directly written to the currently specified write directory.

In addition, when this embodiment sequentially judges whether the specified write amount of the object to be written is less than the remaining quota of the write directory and each associated directory, there is another situation: if the specified write amount of the object to be written If the amount is greater than or equal to the remaining quota of the write directory, or greater than or equal to the remaining quota of the associated directory, it is forbidden to write the object to be written in the write directory.

Specifically, if the specified write amount of the object to be written is greater than or equal to the remaining quota of the write directory, or greater than or equal to the remaining quota of an associated directory, it means that if the object to be written is written to the write directory After that, the amount of data written in the write directory or an associated directory will exceed the set quota, which will cause the problem of excessive writing in the write directory or an associated directory. Write the object to be written in the write directory, effectively avoiding excessive writing of different objects to a single directory.

In the technical solution provided by this embodiment, firstly find out the associated directory under each upward directory level of the currently designated writing directory of the object to be written, and only when the specified writing amount of the object to be written is less than the remaining amount of the writing directory When the permission quota is less than the remaining permission quota of each associated directory, the object to be written is written to the write directory, so that the object to be written can uniformly meet the quota of the specified write directory and each associated directory Requirements to prevent the situation that the quota requirements of the write directory are met, but exceed the quota requirements of an associated directory under the upward directory level. At the same time, the remaining license quotas of the write directory and the associated directory are limited, which can effectively prevent different objects from using a single directory. Excessive writing, improve the adaptability of object writing in different directories.

Embodiment two

FIG. 2A is a flow chart of a method for writing an object according to Embodiment 2 of the present invention, and FIG. 2B is a schematic diagram of the principle of determining the write-in directory and the remaining license quota of each associated directory in the method according to Embodiment 2 of the present invention. This embodiment is optimized on the basis of the foregoing embodiments. Specifically, as shown in FIG. 2A , this embodiment explains in detail the specific determination process of the currently designated writing directory of the object to be written and the remaining license quota under each associated directory.

Optionally, as shown in Figure 2A, this embodiment may include the following steps:

S210. Set a corresponding quota upper limit for the specified directory in advance according to the directory quota requirement, and record the latest written total amount of each directory in real time.

In this embodiment, when the CephFS system executes arbitrary file operations, the MDS server can monitor in real time whether there is a corresponding directory quota requirement for the administrator to write objects in a certain directory, so that the specified directory can be allocated at any time. Set the corresponding quota upper limit; for example, if the administrator requires that the amount of written data in certain specified directories cannot exceed a certain upper limit at the current moment, otherwise it will cause the problem of excessive writing of the directory, the administrator can The client will execute the quota trigger operation in the specified directory accordingly. When the MDS server detects the quota trigger operation, it will determine the current directory quota requirement by analyzing the quota trigger operation. The specified directory required by the quota, and the quota upper limit required by each specified directory. Therefore, after determining the specified directory carried in the current directory quota requirement and the quota limit corresponding to each specified directory, the MDS server sets the quota limit for each specified directory. Set the corresponding quota upper limit; at the same time, in order to accurately judge the remaining license quota of the corresponding directory during the subsequent object writing process, it will also record the latest written total amount of each directory under the CephFS system in real time, so as to accurately analyze each directory The remaining license quota to ensure the adaptation accuracy of different objects written in each directory.

S220, find out the associated directory under each upper directory level of the write directory specified by the object to be written.

S230. For each directory in the write directory and associated directories, determine the remaining permitted quota of the directory according to the quota upper limit of the directory and the latest written total amount.

Optionally, after finding out the associated directory under each upward directory level of the write directory specified by the object to be written, since the write directory specified by the object to be written belongs to a subdirectory under each associated directory, if When the object to be written is subsequently written to the write directory, the amount of written data in the write directory and each associated directory will increase accordingly. Therefore, when the object to be written is written to the current Before the specified write directory, in order to avoid excessive writing of a certain directory, it is necessary to analyze the specified write amount of the object to be written in this operation, and the remaining permissions of each directory in the write directory and each associated directory The size between the quotas; at this time, as shown in Figure 2B, the present embodiment is directed at the write directory specified by the object to be written and each directory in the associated directory of the write directory under each upward directory level, first Find out the upper limit of the quota set in advance for the directory and the latest written total amount occupied by the written objects in the directory, and then analyze the distance to reach the quota of the directory on the basis of the latest written total amount in the directory The amount of the allowed object to continue to be written in the upper limit is used as the remaining allowed quota of the directory in this embodiment, and subsequently judged by dividing the specified writing amount of the object to be written and the remaining allowed quota of the directory Whether the directory can continue to write the object to be written to avoid excessive writing in the directory.

Exemplarily, when the corresponding quota upper limit is set for the specified directory in advance according to the directory quota requirement, the quota upper limit of some specified directories may be set separately, and the quota of other directories is not required. The quota upper limit of the writing directory currently specified by the writing object and each associated directory may be empty, so in this embodiment, the remaining quota of the directory is determined according to the quota upper limit of the directory and the latest total amount of written data. Specifically, it can be Including: if the quota upper limit of the directory is empty, determine that the remaining licensed quota of the directory has no upper limit; if the quota upper limit of the directory is not empty, then use the difference between the upper quota limit of the directory and the latest total written amount as The remaining license quota for this directory.

Specifically, for each directory in the currently specified writing directory of the object to be written and the associated directory under each upward directory level, if the quota upper limit of the directory is empty, it means that the current quota for the directory is There is no requirement for the number of objects written, so it can be directly determined that the remaining quota of the directory has no upper limit, that is, any number of objects can be written at will; and if the upper limit of the quota of the directory is not empty, it means that the current object writes to the directory There are certain restrictions on the amount of input. At this time, analyze the latest total amount written in the directory, and then use the difference between the quota upper limit of the directory and the latest total amount written in the directory as the remaining license quota of the directory to avoid the directory. The amount of object data written exceeds the upper quota requirement of the directory; that is, when determining whether the specified write amount of the object to be written is less than the remaining quota of the write directory and each associated directory, the write directory and the associated directory are directly skipped. For the directory whose quota upper limit is empty in each associated directory, it is only judged in turn whether the specified writing amount of the object to be written is less than the remaining permitted quota under the writing directory and each directory whose quota upper limit is not empty in each associated directory.

S240, if the specified writing amount of the object to be written is less than the remaining quota of the writing directory and is smaller than the remaining quota of the associated directory, write the object to be written into the writing directory.

S250, updating the latest written total amount of the written directory and the associated directory.

Optionally, after the specified write amount of the object to be written is less than the remaining quota of the write directory and the remaining quota of each associated directory, so that the object to be written is written into the write directory, the The latest written totals of the written directory and the associated directories under each upward directory level will increase accordingly, so it is necessary to update the latest written totals of the written directory and each associated directory found. amount, such as adding the specified write amount of the object to be written on the basis of the written total amount under the written directory and each associated directory found, respectively, as the latest written total amount of the corresponding directory. quantity.

S260. If the specified writing amount of the object to be written is greater than or equal to the remaining quota of the writing directory, or is greater than or equal to the remaining quota of the associated directory, prohibit writing the object to be written in the writing directory.

In the technical solution provided by this embodiment, by setting the corresponding quota upper limit for the specified directory in advance, the remaining quota of the write directory specified by the object to be written and the associated directory under each upward directory level is limited, It can effectively avoid excessive writing of different objects to a single directory, and at the same time, only when the specified writing volume of the object to be written is less than the remaining quota of the writing directory and the remaining quota of each associated directory, the The input objects are written to the write directory, so that the objects to be written can uniformly meet the quota requirements of the specified write directory and each associated directory, preventing the occurrence of meeting the quota requirements of the write directory and exceeding the quota requirements of the upper directory level. The quota requirements of an associated directory improve the adaptability of writing objects in different directories. At the same time, after the object to be written is written to the writing directory, the latest updated information of the writing directory and the associated directory is updated in time. The total amount of writing, to ensure the accuracy of the remaining license quota of the writing directory and associated directories, and improve the adaptation accuracy of object writing.

Embodiment Three

FIG. 3A is a flow chart of an object writing method provided by Embodiment 3 of the present invention, and FIG. 3B is a schematic diagram of the principle of an object writing process provided by Embodiment 3 of the present invention. This embodiment is optimized on the basis of the foregoing embodiments. Specifically, as shown in FIG. 3B , this embodiment explains in detail other processing procedures existing in the object writing process.

Optionally, as shown in Figure 3A, this embodiment may include the following steps:

S310. Generate a corresponding directory tree according to the cascading state between different directories.

Optionally, when initializing the CephFS system, corresponding directory levels will be preset according to the writing requirements of different objects, and corresponding system directories will be created under different directory levels, as shown in Figure 3B. The correlation between the directory levels, the MDS server can determine the first-level directory in the overall range and the multiple created under the first-level directory by analyzing the cascading status of the various directories in the CephFS system. subdirectory, as the second-level directory, and so on, according to the cascading state between different directories, generate the corresponding directory tree, and then you can directly find out the waiting list directly according to the cascading situation between the various directories in the directory tree. The currently specified write directory of the write object is associated with each directory level under each upward directory, ensuring the comprehensiveness of the associated directory.

S320. Receive a write command of an object to be written.

Specifically, the client executes the corresponding write operation in a certain directory of the CephFS system, and generates a corresponding write command, which carries the write directory specified by the object to be written; the MDS server receives the After the write command, the object to be written specified by the write command and the write directory currently specified by the object to be written will be analyzed first, so as to perform the corresponding object write operation.

S330, find out, according to the directory tree, associated directories under each upper directory level of the writing directory specified by the object to be written.

S340. For each directory in the write directory and the associated directory, according to the number of specified write objects in the specified write amount of the objects to be written and the remaining permitted write object quantity in the remaining permitted quota of the directory, the first The comparison result, and the second comparison result of the specified write memory amount in the specified write amount of the object to be written and the remaining allowable write memory amount in the remaining license quota of the directory, determine the designation of the object to be written Whether the write volume is less than the remaining licensed quota for the directory.

Optionally, when setting the quota upper limit for the specified directory in advance according to the quota requirements of the directory, you can set the quota of the specified directory in terms of the number of objects and the amount of memory occupied. , it is also necessary to judge whether the object to be written meets the quota requirements under the write directory and each associated directory from the two aspects of the number of objects and the amount of memory occupied. Therefore, the write directory specified by the object to be written is found in each After going up to the associated directory under the directory level, as shown in Figure 3B, for each directory in the write directory and each associated directory, firstly, according to the upper limit of the number of objects contained in the quota upper limit set under the directory and the number of objects written Total quantity, calculate the number of remaining permitted write objects in the remaining permission quota of the directory, and calculate the remaining permission of the directory according to the upper limit of the amount of written memory included in the upper limit of the quota set under the directory and the total amount of written memory The amount of remaining permitted write memory in the quota, and then determine the number of specified write objects and the specified write memory amount in the specified write amount of objects to be written, and determine the specified number of write objects and the specified write amount of objects to be written respectively The first comparison result of the number of objects that are allowed to be written in the directory, and the second comparison result of the specified amount of memory to be written in the object and the amount of memory that is allowed to be written in the directory are the second comparison results. Only when the number of specified write objects is less than the number of remaining permitted write objects of the directory, and the designated write memory of the object to be written is less than the remaining permitted write memory of the directory, can the designated write of the object to be written be determined. The input amount is less than the remaining license quota of the directory, so as to realize the quota requirements of different directories in multiple dimensions.

S350. If the specified writing amount of the object to be written is less than the remaining quota of the writing directory and is smaller than the remaining quota of the associated directory, write the object to be written into the writing directory.

S360. If the specified writing amount of the object to be written is greater than or equal to the remaining quota of the writing directory, or is greater than or equal to the remaining quota of the associated directory, prohibit writing the object to be written in the writing directory.

The technical solution provided by this embodiment sets the quota upper limit of different directories from multiple aspects, realizes the quota requirements of different directories in multiple dimensions, and finds out the current specified writing directory of the object to be written at each upper directory level. After the directory is associated, the object to be written will be written to the write directory only when the specified write amount of the object to be written is less than the remaining license quota of the write directory and the remaining license quota of each associated directory Next, the objects to be written can uniformly meet the quota requirements of the specified write directory and each associated directory, and prevent the situation that the quota requirements of the write directory are met, but the quota requirements of an associated directory under the upward directory level are exceeded , and at the same time limit the remaining permission quota of the write directory and the associated directory, which can effectively avoid excessive writing of different objects to a single directory, and improve the adaptability of object writing in different directories.

Embodiment Four

FIG. 4 is a schematic structural diagram of an object writing device provided in Embodiment 4 of the present invention. Specifically, as shown in FIG. 4, the device may include:

The directory search module 410 is used to find out the associated directory under each upper directory level of the write directory specified by the object to be written;

The object writing module 420 is configured to write the object to be written into the write directory if the specified writing amount of the object to be written is less than the remaining quota of the write directory and the remaining quota of the associated directory.

In the technical solution provided by this embodiment, firstly find out the associated directory under each upward directory level of the currently designated writing directory of the object to be written, and only when the specified writing amount of the object to be written is less than the remaining amount of the writing directory When the permission quota is less than the remaining permission quota of each associated directory, the object to be written is written to the write directory, so that the object to be written can uniformly meet the quota of the specified write directory and each associated directory Requirements to prevent the situation that the quota requirements of the write directory are met, but exceed the quota requirements of an associated directory under the upward directory level. At the same time, the remaining license quotas of the write directory and the associated directory are limited, which can effectively prevent different objects from using a single directory. Excessive writing, improve the adaptability of object writing in different directories.

The device for writing an object provided in this embodiment can be applied to the method for writing an object provided in any of the above embodiments, and has corresponding functions and beneficial effects.

Embodiment five

FIG. 5 is a schematic structural diagram of a server provided in Embodiment 5 of the present invention. As shown in FIG. 5 , the server includes a processor 50, a storage device 51 and a communication device 52; the number of processors 50 in the server can be one or more One, one processor 50 is taken as an example in FIG. 5; the processor 50, storage device 51 and communication device 52 in the server can be connected through a bus or in other ways, and the connection through a bus is taken as an example in FIG. 5.

As a computer-readable storage medium, the storage device 51 can be used to store software programs, computer-executable programs and modules, such as program instructions/modules corresponding to the object writing method described in any embodiment of the present invention. The processor 50 executes various functional applications and data processing of the server by running the software programs, instructions and modules stored in the storage device 51 , that is, realizes the above-mentioned object writing method.

The storage device 51 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system and at least one application required by a function; the data storage area may store data created according to the use of the terminal, and the like. In addition, the storage device 51 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage devices. In some examples, the storage device 51 may further include memories that are remotely located relative to the processor 50, and these remote memories may be connected to a server through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The communication device 52 can be used to implement a network connection or a mobile data connection between the client and the server.

A server provided in this embodiment can be used to execute the object writing method provided in any of the above embodiments, and has corresponding functions and beneficial effects.

Embodiment six

Embodiment 6 of the present invention also provides a computer-readable storage medium, on which a computer program is stored. When the program is executed by a processor, the object writing method in any of the above embodiments can be implemented. The method may specifically include:

Find out the associated directory under each upper directory level of the write directory specified by the object to be written;

If the specified write amount of the object to be written is less than the remaining quota of the write directory and the remaining quota of the associated directory, the object to be written is written to the write directory.

Certainly, a storage medium containing computer-executable instructions provided by an embodiment of the present invention, the computer-executable instructions are not limited to the method operations described above, and may also execute the object writing method provided by any embodiment of the present invention Related operations in .

Through the above description about the implementation mode, those skilled in the art can clearly understand that the present invention can be realized by means of software and necessary general-purpose hardware, and of course it can also be realized by hardware, but in many cases the former is a better implementation mode . Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as a floppy disk of a computer , read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), flash memory (FLASH), hard disk or optical disc, etc., including several instructions to make a computer device (which can be a personal computer, A server, or a network device, etc.) executes the methods described in various embodiments of the present invention.

It is worth noting that, in the embodiment of the above-mentioned object writing device, the included units and modules are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be realized; in addition , the specific names of each functional unit are only for the convenience of distinguishing each other, and are not used to limit the protection scope of the present invention.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. A method for object writing, characterized in that, comprising: Find out the associated directory under each upper directory level of the write directory specified by the object to be written; If the specified write amount of the object to be written is less than the remaining quota of the write directory and is smaller than the remaining quota of the associated directory, write the object to be written into the write directory Down; Before finding out the associated directory under each upward directory level of the write directory specified by the object to be written, it also includes: Set the corresponding quota upper limit for the specified directory in advance according to the directory quota requirements, and record the latest written total amount of each directory in real time. When the metadata server detects the quota trigger operation, it determines by analyzing the quota trigger operation. Display the current directory quota requirements; After finding out the associated directory of the writing directory specified by the object to be written in each upward directory level, judge whether the object to be written meets the requirements of the writing directory and each directory from the number of objects and the amount of memory occupied. Quota requirements under the associated directory; Before finding out the associated directory under each upward directory level of the write directory specified by the object to be written, it also includes: The metadata server receives the write command of the object to be written, and the write command carries the write directory specified by the object to be written; the metadata server receives the write After the command, analyze the object to be written specified by the write command and the write directory currently specified by the object to be written. 2. The method according to claim 1, characterized in that, after finding out the associated directory under each upper directory level of the specified write directory of the object to be written, it also includes: If the specified write amount of the object to be written is greater than or equal to the remaining quota of the write directory, or is greater than or equal to the remaining quota of the associated directory, it is forbidden to write the object to be written under the write directory. write object. 3. The method according to claim 1 or 2, further comprising: For each directory in the write-in directory and the associated directory, determine the remaining permitted quota of the directory according to the upper limit of the quota and the latest total written amount of the directory. 4. The method according to claim 3, wherein determining the remaining licensed quota of the directory according to the quota upper limit of the directory and the latest written total amount includes: If the quota upper limit of the directory is empty, determine that the remaining licensed quota of the directory is unlimited; If the quota upper limit of the directory is not empty, the difference between the upper quota limit of the directory and the latest written total is taken as the remaining licensed quota of the directory. 5. The method according to claim 3, characterized in that, after writing the object to be written into the write directory, further comprising: Updating the latest written totals of the write directory and the associated directory. 6. The method according to claim 1 or 2, further comprising: For each directory in the write directory and the associated directory, according to the specified number of write objects in the specified write amount of the objects to be written and the remaining permitted write objects in the remaining permitted quota of the directory The first comparison result of the quantity, and the second comparison result of the specified write-in memory amount in the specified write-in amount of the object to be written and the remaining allowable write-in memory amount in the remaining allowable quota of the directory, determine Whether the specified writing amount of the object to be written is less than the remaining quota of the directory. 7. The method according to claim 1 or 2, further comprising: Generate the corresponding directory tree according to the cascading state between different directories; Correspondingly, the searching out the associated directory under each upper directory level of the write directory specified by the object to be written includes: According to the directory tree, an associated directory under each upper directory level of the write directory specified by the object to be written is found. 8. A device for object writing, characterized in that it comprises: The directory search module is used to find out the associated directory under each directory level of the write directory specified by the object to be written; An object writing module, configured to write the object to be written if the specified write amount of the object to be written is less than the remaining allowance quota of the write directory and less than the remaining allowance quota of the associated directory. into the write directory; Before finding out the associated directory under each upward directory level of the write directory specified by the object to be written, it also includes: According to the quota requirements of the directory, set the corresponding quota upper limit for the specified directory in advance, and record the latest written total amount of each directory in real time. When the metadata server detects the quota trigger operation, it determines by analyzing the quota trigger operation. Display the current directory quota requirements; After finding out the associated directory of the writing directory specified by the object to be written in each upward directory level, judge whether the object to be written meets the requirements of the writing directory and each directory from the number of objects and the amount of memory occupied. Quota requirements under the associated directory; Before finding out the associated directory under each upward directory level of the write directory specified by the object to be written, it also includes: The metadata server receives the write command of the object to be written, and the write command carries the write directory specified by the object to be written; the metadata server receives the write After the command, analyze the object to be written specified by the write command and the write directory currently specified by the object to be written. 9. A server, characterized in that the server comprises: one or more processors; storage means for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors are made to implement the object writing method according to any one of claims 1-7. 10. A computer-readable storage medium, on which a computer program is stored, wherein when the program is executed by a processor, the object writing method according to any one of claims 1-7 is implemented.