CN113806107A - Object copying method, device, equipment and storage medium - Google Patents
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Abstract
The invention discloses an object copying method, device, equipment and storage medium; in the scheme, after a target object to be copied is searched, target metadata of the target object is copied to a memory, the target metadata in the memory is written into a copied target position, and soft connection is established at the target position by using the target metadata so as to access real data of the target object through the soft connection at the target position; and after the condition of real data copy is met, copying the real data of the target object to the memory according to the target metadata, and writing the real data in the memory into the target position. Therefore, when the object is copied, the real data of the target object can not be copied temporarily, so that the problems of memory burst and overlarge IO are avoided, the normal access of the target object can be ensured by establishing the soft connection, the copy efficiency of the object is improved, and good use experience is brought to a user.
Description
Technical Field
The present invention relates to the field of object copy technologies, and in particular, to an object copy method, apparatus, device, and storage medium.
Background
The distributed object storage system refers to a distributed storage system for unstructured data objects, and in the current distributed object storage system, a copy operation between objects has been implemented, and the copy operation may specifically be: an object is copied from one bucket to another, or from one directory in a bucket to another, i.e.: the basic copy function is now implemented. However, the current copying process is relatively complex, and the current copying process is as follows: a head request for checking whether the object exists in the source bucket; a get request is carried out, and the object is downloaded into the memory; and the put request is used for rewriting the object in the memory from the get into the new bucket. By copying the object in this way, a lot of IO (Input/Output) can be added to the cluster, and if the object is a batch moving object, a phenomenon of memory burst can occur, so that the front-end service of the client is affected, and poor user experience is brought.
Disclosure of Invention
The invention aims to provide an object copying method, device, equipment and storage medium, which aim to avoid the problems of memory burst, overlarge IO and the like as much as possible when an object is copied.
In order to achieve the above object, the present invention provides an object copying method, including:
searching a target object to be copied;
copying the target metadata of the target object to a memory;
writing the target metadata in the memory into a copied destination position;
creating a soft connection at the destination location using the target metadata to access real data of the target object at the destination location through the soft connection;
and after the condition of real data copying is met, copying the real data of the target object to the memory according to the target metadata, and writing the real data in the memory into the target position.
After the target object to be copied is searched, the method further comprises the following steps:
detecting whether the data access request quantity is larger than a first threshold value;
if yes, continuing to execute the step of copying the target metadata of the target object to the memory;
if not, copying the target metadata and the real data of the target object to a memory, and writing the target metadata and the real data in the memory into a target position.
After the target object to be copied is searched, the method further comprises the following steps:
detecting whether the data copy request quantity is larger than a second threshold value;
if yes, continuing to execute the step of copying the target metadata of the target object to the memory;
if not, copying the target metadata and the real data of the target object to a memory, and writing the target metadata and the real data in the memory into a target position.
Wherein, the destination position is: the target object is located in a different directory in the same bucket or in a different bucket than the target object.
After the condition of real data copy is satisfied, copying the real data of the target object to the memory according to the target metadata, and writing the real data in the memory into the destination location, including:
if the data access request quantity is not larger than a first threshold value, copying the real data of the target object to the memory according to the target metadata;
and writing the real data in the memory into the destination position, and deleting the soft connection at the destination position.
After the condition of real data copy is satisfied, copying the real data of the target object to the memory according to the target metadata, and writing the real data in the memory into the destination location, including:
if the data copying request quantity is not larger than a second threshold value, copying the real data of the target object to the memory according to the target metadata;
and writing the real data in the memory into the destination position, and deleting the soft connection at the destination position.
To achieve the above object, the present invention further provides an object copying apparatus, comprising:
the query module is used for searching a target object to be copied;
the first copy module is used for copying the target metadata of the target object to a memory;
a first writing module, configured to write the target metadata in the memory into a destination location of a copy;
a creation module, configured to create a soft connection in the destination location using the target metadata, so as to access real data of the target object through the soft connection in the destination location;
the second copying module is used for copying the real data of the target object to the memory according to the target metadata after the real data copying condition is met;
and the second writing module is used for writing the real data in the memory into the destination position.
Wherein, this scheme still includes:
the first detection module is used for detecting whether the data access request quantity is larger than a first threshold value;
the first copy module is specifically configured to copy the target metadata of the target object to the memory when the data access request amount is greater than a first threshold;
the third copying module is used for copying the target metadata and the real data of the target object to the memory when the data access request quantity is not greater than the first threshold value;
and a third writing module, configured to write the target metadata and the real data in the memory into a destination location.
To achieve the above object, the present invention further provides an electronic device comprising:
a memory for storing a computer program;
a processor for implementing the steps of the above object copying method when executing the computer program.
To achieve the above object, the present invention further provides a computer-readable storage medium having stored thereon a computer program, which when executed by a processor, implements the steps of the above object copying method.
According to the scheme, the object copying method, the device, the equipment and the storage medium are provided by the embodiment of the invention; in the scheme, after a target object to be copied is searched, the target object is not directly copied to a target position, but target metadata of the target object is copied to a memory, the target metadata in the memory is written into the copied target position, and soft connection is established at the target position by using the target metadata so as to access real data of the target object at the target position through the soft connection; and after the condition of real data copy is met, copying the real data of the target object to the memory according to the target metadata, and writing the real data in the memory into the target position. Therefore, when the object is copied, the real data of the target object can not be copied temporarily, so that the problems of memory burst and overlarge IO are avoided, the normal access of the target object can be ensured by establishing the soft connection, the copy efficiency of the object is improved, and good use experience is brought to a user.
Drawings
In order to more clearly illustrate the embodiments of the present invention 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 invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic flow chart of an object copying method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an object copying apparatus according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In the current object copy scheme, the internal memory will expand many times after the service volume becomes larger, and the front-end service and the satisfaction degree of the customer on the product are very easily influenced. Therefore, the invention provides an object copying method, device, equipment and storage medium, which can avoid the problems of memory burst, overlarge IO and the like when the object is copied, thereby improving the cluster performance, enhancing the product stability and enriching the product functions of distributed storage.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
Referring to fig. 1, a schematic flow chart of an object copying method provided in an embodiment of the present invention includes:
s101, searching a target object to be copied;
in this scheme, an object to be copied by a user is referred to as a target object, and a final position to be copied is referred to as a destination position: under a different directory located in the same bucket as the target object, or under a different bucket as the target object, that is: the scheme can optimize the object copying method between different buckets in the same data pool in the object storage system, or optimize the object copying method in different folders in the same bucket. In this embodiment, whether the target object exists in the source bucket can be checked through the head request, if the target object exists, the subsequent flow is continued, and if the target object does not exist, the flow is ended; in this embodiment, S101 may find the target object by default.
It can be understood that, in this embodiment, after the traffic of the storage environment is set to be increased, the scheme is executed again, and if the traffic is not large, the problems of memory burst, too large IO and the like do not occur during object copying, and at this time, the object copying can be performed according to a conventional method. In this embodiment, the large traffic may be understood as that there are many data access requests or there are large batches of copy services, so that, after the target object to be copied is found, it is also required to detect whether the data access request amount is greater than a first threshold, or whether the data copy request amount is greater than a second threshold; if the data access request quantity is larger than the first threshold value or the data copy request quantity is larger than the second threshold value, continuing S102; otherwise, copying the target metadata and the real data of the target object to the memory, and writing the target metadata and the real data in the memory into the target position to complete the copying process of the object.
S102, copying target metadata of a target object to a memory;
s103, writing target metadata in the memory into a copied target position;
it can be understood that the objects stored in the storage system are mainly composed of two parts, namely metadata and real data, and for objects with larger sizes, the metadata only accounts for a small proportion; all operations of the object basically involve the two parts of contents, and the object movement is no exception; the real data of the object is stored in the data pool, and the metadata is of various types and is respectively stored in the head object of the current object in the data pool and a barrel fragment of a barrel where the current object is located in the index pool, so that the real data part of the object can be found through the metadata. Therefore, in order to simplify the object copying process, after the target object is found, the metadata of the target object is firstly copied to the memory, and then the metadata is directly written to the target position, namely: writing into different folders in the destination barrel or the same barrel.
S104, establishing soft connection at the destination position by using the target metadata so as to access the real data of the target object at the destination position through the soft connection;
it should be noted that after the metadata is successfully written into the destination location, a soft connection needs to be created under the target path of the destination location, so as to index the soft connection to the real data portion of the target object through the metadata information, and in this way, when the real data of the target object is not copied, the user can normally access the real data portion of the target object through the soft connection under the destination location, for example: and performing read operation, write operation, deletion operation and the like on the real data of the target object at the destination position, thereby greatly improving the copying speed.
And S105, copying the real data of the target object to the memory according to the target metadata after the real data copying condition is met, and writing the real data in the memory into the target position.
It should be noted that, after the condition of copying the real data is satisfied, the real data is copied to the target path of the destination location, that is: and copying the real data of the target object to the memory according to the target metadata, and writing the real data in the memory into a destination position. The condition of satisfying the real data copy in this embodiment means that the traffic of the storage environment becomes small, such as: and if the data access request quantity is not larger than the first threshold value or the data copy request quantity is not larger than the second threshold value, copying the real data of the target object to the memory according to the target metadata, writing the real data in the memory into the destination position, and deleting the soft connection at the destination position.
In conclusion, the scheme for optimizing the object copy based on the distributed object storage system can solve the problem of overlarge IO in the current copying process, avoids the problem of memory explosion under a large number of copy services, improves the copying efficiency in object storage, brings good user experience to customers, enriches the function of object storage, and improves the market competitiveness of distributed object products.
The following describes an object copying apparatus, an apparatus, and a storage medium according to embodiments of the present invention, and the object copying apparatus, the apparatus, and the storage medium described below may be referred to the object copying method described above.
Referring to fig. 2, an object copying apparatus according to an embodiment of the present invention is schematically illustrated, including:
the query module 11 is configured to search for a target object to be copied;
a first copy module 12, configured to copy the target metadata of the target object to a memory;
a first writing module 13, configured to write the target metadata in the memory into a destination location of the copy;
a creating module 14, configured to create a soft connection in the destination location by using the target metadata, so as to access the real data of the target object in the destination location through the soft connection;
the second copying module 15 is configured to copy the real data of the target object to the memory according to the target metadata after a real data copying condition is met;
a second writing module 16, configured to write the real data in the memory into the destination location.
Wherein, this device still includes:
the first detection module is used for detecting whether the data access request quantity is larger than a first threshold value;
the first copy module is specifically configured to copy the target metadata of the target object to the memory when the data access request amount is greater than a first threshold;
the third copying module is used for copying the target metadata and the real data of the target object to the memory when the data access request quantity is not greater than the first threshold value;
and a third writing module, configured to write the target metadata and the real data in the memory into a destination location.
Wherein the apparatus further comprises:
the second detection module is used for detecting whether the data copy request quantity is larger than a second threshold value;
the first copy module is specifically configured to copy the target metadata of the target object to a memory;
the fourth copying module is used for copying the target metadata and the real data of the target object to the memory when the data copying request quantity is not greater than a second threshold value;
and a fourth writing module, configured to write the target metadata and the real data in the memory into a destination location.
Wherein, the destination position is: the target object is located in a different directory in the same bucket or in a different bucket than the target object.
Wherein the second copy module is specifically configured to: if the data access request quantity is not larger than a first threshold value, copying the real data of the target object to the memory according to the target metadata;
the second write module is specifically configured to: and writing the real data in the memory into the destination position, and deleting the soft connection at the destination position.
Wherein the second copy module is specifically configured to: if the data copying request quantity is not larger than a second threshold value, copying the real data of the target object to the memory according to the target metadata;
the second write module is specifically configured to: and writing the real data in the memory into the destination position, and deleting the soft connection at the destination position.
Referring to fig. 3, an electronic device according to an embodiment of the present invention includes:
a memory 21 for storing a computer program;
a processor 22, configured to implement the steps of the object copying method according to the above-mentioned method embodiments when executing the computer program.
In this embodiment, the device may be a PC (Personal Computer), or may be a terminal device such as a smart phone, a tablet Computer, a palmtop Computer, or a portable Computer.
The device may include a memory 21, a processor 22, and a bus 23.
The memory 21 includes at least one type of readable storage medium, which includes a flash memory, a hard disk, a multimedia card, a card type memory (e.g., SD or DX memory, etc.), a magnetic memory, a magnetic disk, an optical disk, and the like. The memory 21 may in some embodiments be an internal storage unit of the device, for example a hard disk of the device. The memory 21 may also be an external storage device of the device in other embodiments, such as a plug-in hard disk, Smart Media Card (SMC), Secure Digital (SD) Card, Flash memory Card (Flash Card), etc. provided on the device. Further, the memory 21 may also include both an internal storage unit of the device and an external storage device. The memory 21 may be used not only to store application software installed in the device and various types of data such as program codes for performing an object copy method, etc., but also to temporarily store data that has been output or is to be output.
Processor 22, which in some embodiments may be a Central Processing Unit (CPU), controller, microcontroller, microprocessor or other data Processing chip, executes program code or processes data stored in memory 21, such as program code for performing object copy methods.
The bus 23 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. Fig. 3 is represented by a single thick line for ease of illustration, but does not represent only one bus or one type of bus.
Further, the device may further include a network interface 24, and the network interface 24 may optionally include a wired interface and/or a wireless interface (e.g., WI-FI interface, bluetooth interface, etc.), which are generally used to establish a communication connection between the device and other electronic devices.
Optionally, the device may further comprise a user interface 25, the user interface 25 may comprise a Display (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 25 may also comprise a standard wired interface, a wireless interface. Alternatively, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode) touch device, or the like. The display, which may also be referred to as a display screen or display unit, is suitable for displaying information processed in the device and for displaying a visualized user interface.
While fig. 3 shows a device having components 21-25, those skilled in the art will appreciate that the configuration of fig. 3 is not intended to be limiting of devices and may include fewer or more components than those shown, or some components may be combined, or a different arrangement of components.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the steps of the object copying method according to the above-mentioned method embodiment.
Wherein 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 embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An object copying method, comprising:
searching a target object to be copied;
copying the target metadata of the target object to a memory;
writing the target metadata in the memory into a copied destination position;
creating a soft connection at the destination location using the target metadata to access real data of the target object at the destination location through the soft connection;
and after the condition of real data copying is met, copying the real data of the target object to the memory according to the target metadata, and writing the real data in the memory into the target position.
2. The object copying method according to claim 1, wherein after searching for the target object to be copied, the method further comprises:
detecting whether the data access request quantity is larger than a first threshold value;
if yes, continuing to execute the step of copying the target metadata of the target object to the memory;
if not, copying the target metadata and the real data of the target object to a memory, and writing the target metadata and the real data in the memory into a target position.
3. The object copying method according to claim 1, wherein after searching for the target object to be copied, the method further comprises:
detecting whether the data copy request quantity is larger than a second threshold value;
if yes, continuing to execute the step of copying the target metadata of the target object to the memory;
if not, copying the target metadata and the real data of the target object to a memory, and writing the target metadata and the real data in the memory into a target position.
4. The object copying method according to claim 1, wherein the destination location is: the target object is located in a different directory in the same bucket or in a different bucket than the target object.
5. The object copying method according to any one of claims 1 to 4, wherein copying the real data of the target object to the memory according to the target metadata and writing the real data in the memory to the destination location after a real data copying condition is satisfied includes:
if the data access request quantity is not larger than a first threshold value, copying the real data of the target object to the memory according to the target metadata;
and writing the real data in the memory into the destination position, and deleting the soft connection at the destination position.
6. The object copying method according to any one of claims 1 to 4, wherein copying the real data of the target object to the memory according to the target metadata and writing the real data in the memory to the destination location after a real data copying condition is satisfied includes:
if the data copying request quantity is not larger than a second threshold value, copying the real data of the target object to the memory according to the target metadata;
and writing the real data in the memory into the destination position, and deleting the soft connection at the destination position.
7. An object copying apparatus, comprising:
the query module is used for searching a target object to be copied;
the first copy module is used for copying the target metadata of the target object to a memory;
a first writing module, configured to write the target metadata in the memory into a destination location of a copy;
a creation module, configured to create a soft connection in the destination location using the target metadata, so as to access real data of the target object through the soft connection in the destination location;
the second copying module is used for copying the real data of the target object to the memory according to the target metadata after the real data copying condition is met;
and the second writing module is used for writing the real data in the memory into the destination position.
8. The object copying apparatus according to claim 7, further comprising:
the first detection module is used for detecting whether the data access request quantity is larger than a first threshold value;
the first copy module is specifically configured to copy the target metadata of the target object to the memory when the data access request amount is greater than a first threshold;
the third copying module is used for copying the target metadata and the real data of the target object to the memory when the data access request quantity is not greater than the first threshold value;
and a third writing module, configured to write the target metadata and the real data in the memory into a destination location.
9. An electronic device, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the object copying method of any one of claims 1 to 6 when executing the 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 object copying method according to any one of claims 1 to 6.
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