WO2020133995A1

WO2020133995A1 - Copy deployment method, cloud server, and storage medium

Info

Publication number: WO2020133995A1
Application number: PCT/CN2019/093789
Authority: WO
Inventors: 何琼
Original assignee: 深圳市网心科技有限公司
Priority date: 2018-12-26
Filing date: 2019-06-28
Publication date: 2020-07-02
Also published as: CN109753243A

Abstract

Disclosed is a copy deployment method, comprising: monitoring a first node event of a target node having a deployed copy; determining whether the first node event affects a current online copy quantity of the copy; if so, updating the current online copy quantity of the copy according to the first node event; determining whether the updated current online copy quantity is within a pre-determined copy quantity fluctuation range; and if not, performing redeployment of the copy, wherein the current online copy quantity of the copy after the redeployment is within the copy quantity fluctuation range. Further disclosed are a cloud server and a storage medium. The present invention ensures accuracy of the current online copy quantity, and maintains the current online copy quantity of the copy to be within a specific range after redeployment, thereby facilitating user access.

Description

Copy deployment method, cloud server and storage medium

This application requires the priority of the Chinese patent application submitted to the Chinese Patent Office on December 26, 2018 with the application number 201811603472.0 and the invention titled "Copy Deployment Method, Cloud Server and Storage Media", the entire contents of which are incorporated herein by reference Applying.

Technical field

The present invention relates to the field of communication technology, and in particular, to a copy deployment method, cloud server, and storage medium.

Background technique

Cloud storage is a new concept that extends and develops from the concept of cloud computing. Through cluster applications, grid technology, or distributed file system functions, a large number of different types of storage devices in the network are gathered together through application software to work together. , A system that provides data storage and business access functions together.

A large amount of data and its copies are stored in the cloud storage system, and the data scale is still increasing rapidly, which makes the data copy management module an indispensable component in the cloud storage system. At present, in cloud storage systems, due to node instability or disk damage, the copy is lost, which brings great inconvenience to users' access.

Summary of the invention

The main purpose of the present invention is to provide a copy deployment method, a cloud server and a storage medium, aiming to solve the technical problem that the copy is lost due to node instability or the disk is damaged, resulting in inconvenience to user access.

To achieve the above objective, the present invention provides a copy deployment method, including:

Monitor the first node event of the target node where the copy is deployed;

Determine whether the first node event affects the current number of online copies of the copy;

If the first node event affects the current online copy number of the copy, update the current online copy number of the copy according to the first node event;

Determine whether the updated current online copy quantity meets the preset copy quantity fluctuation range;

If the updated current online copy number does not satisfy the preset fluctuation range of the copy number, the copy is redeployed, wherein the current online copy number of the redeployed copy meets the fluctuation range of the copy number.

As an optional implementation manner, if the updated current online copy number does not meet the preset copy number fluctuation range, redeploying the copy includes:

If the updated current online copy quantity is less than the minimum value of the preset copy quantity fluctuation range, add the copy operation.

As an optional implementation manner, the current number of online copies of the added copy is the maximum value of the fluctuation range of the number of copies.

If the updated current online copy number is greater than the maximum value of the preset copy number fluctuation range, delete the copy.

As an optional implementation manner, the current number of online copies of the deleted copy is the maximum value of the fluctuation range of the number of copies.

As an optional implementation, before the monitoring of the first node event of the target node where the copy is deployed, the method further includes:

After receiving the copy deployment task, determine the multiple areas to be deployed;

According to the population of each of the areas, determine the distribution ratio of multiple copies of the areas;

Calculate the number of copies to be deployed in each of the areas according to the total number of copies and the copy allocation ratio;

For each of the areas, determine a target node where the area is currently online and whose storage space is greater than a preset storage space threshold, and deploy the copy on the target node of the area according to the number of copies.

After receiving the copy deployment task, obtain the copy allocation ratio for multiple regions carried by the copy deployment task;

Calculate the number of copies to be deployed in each of the areas based on the total number of copies and the distribution ratio of the copies;

For each of the regions, from multiple nodes currently online, determine the node whose resource usage rate is lower than the preset resource usage threshold as the target node, and deploy on the target node of the region according to the number of copies The copy.

As an optional implementation manner, after updating the current online copy number of the copy according to the node event, the method further includes:

Send a node event acquisition request to the target node;

Receiving a second node event returned by the target node in response to the node event acquisition request;

According to the second node event, count the current number of online copies of the copy;

Determine whether the updated number of current online copies is consistent with the counted current number of online copies;

If the updated current online copy number is consistent with the counted current online copy number, execute the judgment to determine whether the updated current online copy number meets the preset copy number fluctuation range.

To achieve the above object, the present invention further provides a cloud server, the cloud server includes a memory and a processor, the memory stores a copy deployment program that can run on the processor, and the copy deployment program is When the processor executes, the copy deployment method is implemented.

Optionally, the cloud server is a node that constitutes a content distribution network or a blockchain network.

To achieve the above object, the present invention further provides a copy deployment system, the copy deployment system includes:

The monitoring unit is used to monitor the first node event of the target node where the copy is deployed;

A first determining unit, configured to determine whether the first node event affects the current number of online copies of the copy;

An updating unit, configured to update the current online copy number of the replica according to the first node event if the first node event affects the current online copy number of the replica;

The second judgment unit is used to judge whether the updated current online copy quantity meets the preset fluctuation range of the copy quantity;

A deployment unit, configured to redeploy the copy if the updated current online copy number does not meet the preset fluctuation range of the copy number, wherein the current online copy number of the copy after redeployment satisfies the copy number Fluctuation range.

To achieve the above object, the present invention further provides a computer-readable storage medium on which a copy deployment program is stored, and the copy deployment program may be executed by one or more processors to implement the Copy deployment method.

In order to achieve the above object, the present invention further provides a computer program product, including computer instructions, which, when run on a computer, enable the computer to execute the copy deployment method.

The beneficial effects achieved by the present invention:

In the present invention, the first node event of the target node where the copy is deployed can be monitored; further, it is determined whether the first node event affects the current number of online copies of the copy, if the first node event affects the copy The current number of online copies, according to the first node event, update the number of current online copies of the copy; further, it can also be determined whether the updated current online copy number meets the preset copy number fluctuation range; if updated After the current number of online copies does not meet the preset fluctuation range of the number of copies, the copy is redeployed, wherein the number of current online copies of the redeployed copy meets the fluctuation range of the number of copies. It can be seen that in the present invention, the cloud server can actively monitor the first node event occurring on the target node, and when the first node event affects the current online copy number of the copy, update the current online copy number, which is beneficial to Ensure that the current number of online copies is updated in real time to ensure the accuracy of the current number of online copies. After that, it is further determined whether the updated number of current online copies meets the preset fluctuation range of the number of copies, and if not, redeploys the copies Therefore, it is beneficial to timely redeploy the copies according to the current number of online copies, so that the number of the current online copies of the redeployed copies remains within a certain range, which is convenient for users to access.

BRIEF DESCRIPTION

1 is a schematic flowchart of a copy deployment method disclosed in an embodiment of the present invention;

2 is a schematic diagram of an internal structure of a cloud server disclosed in an embodiment of the present invention;

3 is a schematic diagram of functional modules of a copy deployment system disclosed in an embodiment of the present invention.

detailed description

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

The terms “first” and “second” in the description and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequential order. It should be understood that the data so used can be interchanged under appropriate circumstances so that the embodiments described herein can be implemented in an order other than what is illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, processes, methods, systems, products or devices that contain a series of steps or units are not necessarily limited to those clearly listed Those steps or units, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or equipment.

It should be noted that the descriptions related to “first” and “second” in the present invention are for descriptive purposes only, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Thus, features defined as "first" and "second" may include at least one of the features, either explicitly or implicitly. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary skilled in the art to achieve, when the combination of technical solutions contradicts each other or cannot be achieved, it should be considered that the combination of such technical solutions does not exist , Nor within the scope of protection required by the present invention.

The invention provides a copy deployment method, which can ensure the accuracy of the current online copy number, and at the same time, keep the current online copy number of the redeployed copy within a certain range, which is convenient for users to access.

The cloud server may refer to a computer system that can provide services to other devices (such as clients) in the network. If a personal computer can provide a file transfer protocol (File Transfer Protocol, FTP for short) service, it can also be called a cloud server. In a narrow sense, cloud servers refer to certain high-performance computers that can provide services externally through the network. Compared with ordinary personal computers, they require higher stability, security, and performance. Therefore, CPU, chipset, memory, disk system, network and other hardware are different from ordinary personal computers. The cloud server is used to provide services (such as data transmission services) to clients. The cloud server may include, but is not limited to, a PC (Personal Computer), a smart phone, a tablet computer, a palmtop computer, a portable computer, an intelligent router, a network storage device, and the like.

Wherein, the target node may be various clients, wherein the client is a device that can automatically perform numerical calculation and/or information processing according to a preset or stored instruction, and its hardware includes but is not limited to microprocessing Device, application specific integrated circuit (Application Specific Integrated Circuit, ASIC), programmable gate array (Field-Programmable Gate Array, FPGA), digital processor (Digital Signal Processor, DSP), embedded equipment, etc. The client includes but is not limited to any electronic product that can interact with the user through keyboard, mouse, remote control, touchpad or voice control device, such as personal computer, tablet computer, smart phone, personal digital Assistant (Personal Digital Assistant, PDA), interactive network TV (Internet Protocol, IPTV), smart wearable devices, etc.

Referring to FIG. 1, FIG. 1 is a schematic flowchart of a copy deployment method disclosed in an embodiment of the present invention. As shown in Figure 1, the method includes:

S101. The cloud server monitors the first node event of the target node where the copy is deployed.

Generally, in order to increase the number of backup copies of a single data and increase the redundancy to achieve data reliability, the original data needs to be backed up.

In the embodiment of the present invention, after the cloud server receives the copy deployment task, the cloud server needs to copy the original into multiple copies, and then deploy the multiple copies to the target node, where the original is the original data, and the copy passes the original data Copies of multiple copies of data.

Among them, the cloud server can manage node online and offline information, trigger node online and offline events, manage node-replication relationships, trigger node add replica events and trigger node delete replica events, receive replica deployment tasks and deliver them to deployment nodes.

In the embodiment of the present invention, due to the unstable factors of the target node, when the target node goes offline or the disk fails, the copy may be lost, which may cause inconvenience for the user to access the copy. When a copy is deployed on the target node, in order to avoid a large probability of loss of the copy, and at the same time, maintain the number of online copies within a certain range to ensure that users can access the copy at any time, the cloud server needs to monitor the first node event of the target node where the copy is deployed Wherein, the first node event may include but is not limited to a node going online event, a node adding copy event, a node deleting copy event, a copy invalid event, and a node moving copy event.

As an optional implementation, before step S101, the method further includes:

In this optional embodiment, after receiving the copy deployment task, the cloud server may obtain multiple regions to be deployed carried by the copy deployment task and the total number of copies, and further, may obtain the The number of population, according to the number of population of each of the areas, calculate the proportion of the population of the plurality of areas, and then determine the proportion of the population of the plurality of areas as the distribution ratio of the copies of the plurality of areas; further, Calculate the number of replicas to be deployed in each of the regions according to the total number of replicas and the replica allocation ratio; finally, for each of the regions, obtain the currently online nodes from the multiple nodes included in the region, Then, a node whose storage space is greater than a preset storage space threshold is selected from the currently online nodes as the target node, and then the copy can be deployed on the target node in the area according to the number of copies. Each described area operates similarly until all replicas are deployed to all target nodes.

In this alternative embodiment, due to areas with large populations, the frequency of data access is generally higher. Assigning copies according to the proportion of the population in the area can satisfy the requirements of local users for data access as much as possible, making data access The speed is faster and the user experience is more.

As an optional implementation, before step S101, the method further includes:

In this optional embodiment, the copy deployment task carries the copy allocation ratio and the total number of copies for multiple regions, and the cloud server may directly calculate each of the copies according to the total number of copies and the copy allocation ratio. The number of replicas to be deployed in the area. Further, for each of the areas, the currently online nodes are obtained from the multiple nodes included in the area, and then the resource utilization rate selected from the currently online nodes is lower than the preset The node with the resource usage threshold is determined as the target node, and then the copy can be deployed on the target node in the area according to the number of copies. Each described area operates similarly until all replicas are deployed to all target nodes.

The target nodes selected in this way are all nodes with light load, low resource usage, and can have extra resources to deploy copies. At the same time, it also makes subsequent data access faster.

S102. The cloud server determines whether the first node event affects the current number of online copies of the copy. If so, step S103 is executed. If not, the process ends.

In the embodiment of the present invention, some of the first node events listed above may affect the current number of online copies of the replicas, such as a node add replica event, a node delete replica event, and a copy invalid event, and some will not affect all The current online copy number of the copy, such as the node move copy event. The current number of online copies refers to the number of copies that can be accessed by users deployed on the target node currently online.

S103. The cloud server updates the current number of online copies of the copy according to the first node event.

In the embodiment of the present invention, if the cloud server determines that the first node event affects the current online copy number of the copy, it indicates that the current online copy number of the copy has changed, and the cloud server needs to determine according to the first node event The number of the copies affected by the first node event, and in turn, the current online copy number of the copies is updated. For example: the first node event is a node delete copy event, the number of copies deleted by the node delete copy event is A, and the number of currently stored copies is B, then the cloud server needs to update the current number of online copies of the copy , The current number of online copies will be changed from B copies to (BA) copies.

S104. The cloud server determines whether the updated current number of online copies meets the preset fluctuation range of the number of copies. If not, step S105 is executed, and if so, the process ends.

Generally, if the number of replicas is too large, it will cause the waste of node storage resources and network bandwidth, and increase the burden on the system and the network; if the number of replicas is too small, the availability and access speed of data cannot be guaranteed, which is likely to cause hot spots. In order to ensure higher service reliability of the system, the number of copies needs to be appropriately controlled.

Due to the instability of the node or the network situation, the information reported by the node may be lost or delayed, which frequently triggers a large number of deletion/patch operations, resulting in frequent fluctuations in the number of copies. This situation not only makes the backend face the problem of high pressure for event processing, but also, frequent delete/patch operations cause resources to be consumed in a large number of wasteful operations. Among them, the delete/patch operation is the operation of deleting a copy/adding a copy.

In the embodiment of the present invention, a copy quantity fluctuation range may be preset, wherein the copy quantity fluctuation range is obtained in advance according to the probability of an online target node, and the copy quantity fluctuation range includes a maximum value and a minimum value, the maximum The value is the maximum number of copies allowed by the system, and the minimum value is the minimum number of copies allowed by the system. No matter what time the target node occurs, if the current number of online copies is within the fluctuation range of the number of copies, frequent delete/patch operations will not be triggered, and at the same time, the pressure of back-end processing events will be reduced, and the copies will not be affected. Access to ensure the normal operation of the system.

In the embodiment of the present invention, after updating the current online copy quantity, the cloud server may determine whether the updated current online copy quantity meets the preset copy quantity fluctuation range, if the updated current online copy quantity does not satisfy the preset copy quantity The fluctuation range indicates that there are too many or too few online copies, which has affected the normal operation of the entire system.

S105. The cloud server redeploys the copy.

In the embodiment of the present invention, if the updated current online copy quantity does not meet the preset copy quantity fluctuation range, the cloud server needs to redeploy the copy. Wherein, the current number of online copies of the redeployed copy meets the fluctuation range of the number of copies.

Optionally, if the updated current number of online copies does not meet the preset fluctuation range of the number of copies, redeploying the copies includes:

If the updated current online copy number is less than the minimum value of the preset fluctuation range of the copy number, the copy is added, wherein the current online copy number of the added copy is the maximum fluctuation range of the copy number value.

In this optional embodiment, if the updated current number of online copies is less than the minimum value of the preset copy number fluctuation range, it means that the current number of copies is too small, which has affected the access of the copies. The copy is added, that is, a certain number of copies are added, so that the number of added copies is within the fluctuation range of the number of copies.

Preferably, the number of copies that can be directly added to the copy after being added is the maximum value of the fluctuation range of the number of copies. If the number of added copies is small, it is likely that the number of copies will fluctuate within a short period of time, and adding the copy to the maximum value of the number of copies of the fluctuation range, which is beneficial after adding copies, in a shorter During the time, it will not cause the current online copy quantity of the copy to be lower than the minimum value of the fluctuation range of the copy quantity, and it is possible to maintain the current online copy quantity of the copy within the fluctuation range of the copy quantity for a long time.

If the updated current online copy quantity is greater than the maximum value of the preset copy quantity fluctuation range, delete the copy operation, wherein the current online copy quantity of the deleted copy is the largest copy quantity fluctuation range value.

In this optional embodiment, if the updated number of current online copies is greater than the maximum value of the preset copy number fluctuation range, it indicates that the current number of copies is too large. In order to avoid waste of resources, the copies need to be deleted The operation is to delete a certain number of copies so that the number of deleted copies is within the fluctuation range of the number of copies.

Preferably, the copy can be directly deleted to the current online copy number of the deleted copy is the maximum value of the fluctuation range of the copy number. If the number of deleted copies increases, it is likely that there will be fluctuations in the number of copies within a short period of time, and deleting the copies to the maximum value of the fluctuation range of the number of copies will facilitate the deletion of copies after a short period of time. During the time, it will not cause the current online copy quantity of the copy to be lower than the minimum value of the fluctuation range of the copy quantity, and it is possible to maintain the current online copy quantity of the copy within the fluctuation range of the copy quantity for a long time.

As an optional implementation manner, after step S103, the method further includes:

Send a node event acquisition request to the target node;

In this optional embodiment, due to network conditions that may result in the loss of events, there may be deviations in the current number of online copies of the cached copies, and such deviations may cause errors in subsequent deletion/patching operations, At this point, it is necessary to control the magnitude of the deviation and perform deviation calibration.

Specifically, after updating the current number of online copies of the replica, a node event acquisition request may be actively sent to the target node, and after receiving the node event acquisition request, the target node may acquire a preset period (such as one day ), and return all second node events to the cloud server. After receiving the second node event returned by the target node for the node event acquisition request, the cloud server can The second node event counts the current number of online copies of the copy; further, it can be determined whether the updated current online copy number is consistent with the counted current online copy number, if the updated current online copy number is The consistent number of current online copies indicates that the deviation of the number of current online copies after the update is relatively small, and the data is more reliable. You can further determine whether the updated number of online copies meets the preset fluctuation range of the number of copies.

In the method flow described in FIG. 1, the first node event of the target node where the copy is deployed can be monitored; further, it is determined whether the first node event affects the number of current online copies of the copy, if the first The node event affects the current online copy number of the replica, and the current online copy number of the replica is updated according to the first node event; further, it can also be determined whether the updated current online copy quantity meets the preset copy Number fluctuation range; if the updated current online copy number does not meet the preset copy number fluctuation range, redeploy the copy, wherein the redeployed copy of the current online copy number meets the copy number fluctuation range. It can be seen that in the present invention, the cloud server can actively monitor the first node event occurring on the target node, and when the first node event affects the current online copy number of the copy, update the current online copy number, which is beneficial to Ensure that the current number of online copies is updated in real time to ensure the accuracy of the current number of online copies. After that, it is further determined whether the updated number of current online copies meets the preset fluctuation range of the number of copies, and if not, redeploys the copies Therefore, it is beneficial to timely redeploy the copies according to the current number of online copies, so that the number of the current online copies of the redeployed copies remains within a certain range, which is convenient for users to access.

2, FIG. 2 is a schematic diagram of an internal structure of a cloud server disclosed in an embodiment of the present invention. As shown in FIG. 2, the cloud server 1 may include a memory 11, a processor 12, and a bus 13.

In this embodiment, the cloud server 1 may refer to a computer system that can provide services to other devices (such as clients) in the network. If a personal computer can provide a file transfer protocol (File Transfer Protocol, FTP for short) service, it can also be called a cloud server. In a narrow sense, cloud servers refer to certain high-performance computers that can provide services externally through the network. Compared with ordinary personal computers, they require higher stability, security, and performance. Therefore, CPU, chipset, memory, disk system, network and other hardware are different from ordinary personal computers. The server is used to provide services (such as data transmission services) to clients. The cloud server may include, but is not limited to, a PC (Personal Computer), a smart phone, a tablet computer, a palmtop computer, a portable computer, an intelligent router, a network storage device, and the like.

The cloud server 1 may be a node constituting a content distribution network or a blockchain network.

Wherein, the memory 11 includes at least one type of readable storage medium, and the readable storage medium includes flash memory, hard disk, multimedia card, card-type memory (for example, SD or DX memory, etc.), magnetic memory, magnetic disk, optical disk, and the like. The storage 11 may be an internal storage unit of the cloud server 1 in some embodiments, such as a hard disk of the cloud server 1. In other embodiments, the storage 11 may also be an external storage device of the cloud server 1, such as a plug-in hard disk equipped on the cloud server 1, a smart memory card (Smart, Media, Card, SMC), and a secure digital (SD) Cards, flash cards, etc. Further, the memory 11 may also include both the internal storage unit of the cloud server 1 and the external storage device. The memory 11 can be used not only to store application software installed on the cloud server 1 and various types of data, such as code of a copy deployment program, but also to temporarily store data that has been or will be output.

In some embodiments, the processor 12 may be a central processing unit (CPU), controller, microcontroller, microprocessor, or other data processing chip for running the program code or processing stored in the memory 11 Data, such as executing copy deployment procedures, etc.

The bus 13 may be a peripheral component interconnection (peripheral component interconnection, PCI for short) bus or an extended industry standard architecture (extended industry standard architecture, EISA for short) bus, or the like. The bus can be divided into address bus, data bus, control bus and so on. For ease of representation, only a thick line is used in FIG. 2, but it does not mean that there is only one bus or one type of bus. Further, the server may further include a network interface, and the network interface may optionally include a wired interface and/or a wireless interface (such as a WI-FI interface, a Bluetooth interface, etc.), which is usually used to establish between the cloud server 1 and other servers Communication connection.

Optionally, the cloud server 1 may further include a user interface. The user interface may include a display and an input unit such as a keyboard. The optional user interface may also include a standard wired interface and a wireless interface. Optionally, 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, organic light emitting diode) touch device, or the like. Among them, the display may also be appropriately called a display screen or a display unit, for displaying information processed in the cloud server 1 and for displaying a visual user interface.

FIG. 2 only shows the cloud server 1 having components 11 to 13 and a copy deployment program. Those skilled in the art can understand that the structure shown in FIG. 2 does not constitute a limitation on the cloud server 1, and may include a comparison diagram. Fewer or more components, or some combination of components, or different component arrangements.

With reference to FIG. 1, the memory 11 in the cloud server 1 stores multiple instructions to implement a copy deployment method, and the processor 12 can execute the multiple instructions to implement:

Monitor the first node event of the target node where the copy is deployed;

In an optional implementation manner, if the updated current number of online copies does not meet the preset fluctuation range of the number of copies, redeploying the copies includes:

In an optional implementation manner, before monitoring the first node event of the target node where the copy is deployed, the processor 12 may execute the multiple instructions to implement:

In an optional implementation manner, after updating the current online copy number of the copy according to the node event, the processor 12 may execute the plurality of instructions to implement:

Send a node event acquisition request to the target node;

Specifically, for a specific implementation method of the foregoing instruction by the processor 12, reference may be made to the description of related steps in the embodiment corresponding to FIG. 1, and details are not described herein again.

In the cloud server described in FIG. 2, the first node event of the target node where the copy is deployed can be monitored; further, it is determined whether the first node event affects the number of current online copies of the copy, if the first The node event affects the current online copy number of the copy, and the current online copy number of the copy is updated according to the first node event; further, it can also be determined whether the updated current online copy number satisfies the preset copy Number fluctuation range; if the updated current online copy number does not meet the preset copy number fluctuation range, redeploy the copy, wherein the redeployed copy of the current online copy number meets the copy number fluctuation range. It can be seen that in the present invention, the cloud server can actively monitor the first node event occurring on the target node, and when the first node event affects the current online copy number of the copy, update the current online copy number, which is beneficial to Ensure that the current number of online copies is updated in real time to ensure the accuracy of the current number of online copies. After that, it is further determined whether the updated number of current online copies meets the preset fluctuation range of the number of copies, and if not, redeploys the copies Therefore, it is beneficial to timely redeploy the copies according to the current number of online copies, so that the number of the current online copies of the redeployed copies remains within a certain range, which is convenient for users to access.

Referring to FIG. 3, FIG. 3 is a schematic diagram of functional modules of a copy deployment system disclosed in an embodiment of the present invention. The replica deployment system described in FIG. 3 is used to perform some or all of the steps in the replica deployment method described in FIG. 1. For details, reference may be made to the related description in FIG. 1, and details are not described herein again. The unit referred to in the present invention refers to a series of computer program segments that can be executed by a processor and can complete a fixed function, and are stored in a memory. In this embodiment, the functions of each unit will be described in detail in subsequent embodiments.

The copy deployment system depicted in Figure 3 includes:

The monitoring unit 301 is configured to monitor the first node event of the target node where the copy is deployed;

The first determining unit 302 is configured to determine whether the first node event affects the current number of online copies of the copy;

The updating unit 303 is configured to, if the first node event affects the current online copy number of the copy, update the current online copy number of the copy according to the first node event;

The second judging unit 304 is used to judge whether the updated current online copy quantity meets the preset copy quantity fluctuation range;

The deployment unit 305 is configured to redeploy the copy if the updated current online copy number does not meet the preset fluctuation range of the copy number, wherein the current online copy number of the copy after redeployment satisfies the copy Quantity fluctuation range.

Optionally, if the updated current online copy number of the deployment unit 305 does not meet the preset fluctuation range of the copy number, the method of redeploying the copy is specifically:

Optionally, the replica deployment system described in FIG. 3 may further include:

A determining unit, configured to determine a plurality of regions to be deployed before receiving the copy deployment task before the monitoring unit 301 monitors the first node event of the target node where the copy is deployed;

The determining unit is also used to determine a copy allocation ratio of a plurality of the areas according to the population of each of the areas;

A calculation unit, configured to calculate the number of copies to be deployed in each of the regions according to the total number of copies and the copy allocation ratio;

The determining unit is further configured to determine, for each of the areas, a target node where the area is currently online and whose storage space is greater than a preset storage space threshold;

The deployment unit 305 is further configured to deploy the copy on the target node in the area according to the number of copies.

An obtaining unit, configured to obtain, before the monitoring unit 301 monitors the first node event of the target node where the copy is deployed, after receiving the copy deployment task, obtain the copy allocation ratio for multiple regions carried by the copy deployment task;

The calculation unit is further configured to calculate the number of copies to be deployed in each of the regions according to the total number of copies and the copy allocation ratio;

The determining unit is further configured to determine, for each of the regions, a node whose resource usage rate is lower than a preset resource usage rate threshold as a target node from a plurality of nodes currently online;

A sending unit, configured to send a node event acquisition request to the target node;

A receiving unit, configured to receive a second node event returned by the target node in response to the node event acquisition request;

A statistical unit, configured to count the current number of online copies of the replica based on the second node event;

The third judging unit is used to judge whether the updated current online copy quantity is consistent with the counted current online copy quantity;

The second judgment unit 304 is specifically configured to judge whether the updated current online copy quantity meets the preset fluctuation range of the copy quantity if the updated current online copy quantity is consistent with the counted current online copy quantity.

In the replica deployment system described in FIG. 3, the first node event of the target node where the replica is deployed can be monitored; further, it is determined whether the first node event affects the current number of online replicas of the replica, if the first A node event affects the number of current online copies of the replica, and according to the first node event, the current online copy number of the replica is updated; further, it can also be determined whether the updated current online copy number meets the preset Fluctuation range of the number of copies; if the updated current number of online copies does not meet the preset fluctuation range of the number of copies, redeploy the copy, wherein the number of current online copies of the redeployed copy after redeployment meets the number of copies Fluctuation range. It can be seen that in the present invention, the cloud server can actively monitor the first node event occurring on the target node, and when the first node event affects the current online copy number of the copy, update the current online copy number, which is beneficial to Ensure that the current number of online copies is updated in real time to ensure the accuracy of the current number of online copies. After that, it is further determined whether the updated number of current online copies meets the preset fluctuation range of the number of copies, and if not, redeploys the copies Therefore, it is beneficial to timely redeploy the copies according to the current number of online copies, so that the number of the current online copies of the redeployed copies remains within a certain range, which is convenient for users to access.

The above integrated unit implemented in the form of a software functional module may be stored in a computer-readable storage medium. The computer-readable storage medium may store a computer program, and when the computer program is executed by the processor, the steps of the foregoing method embodiments may be implemented. Wherein, the computer program includes computer program code, and the computer program code may be in a source code form, an object code form, an executable file, or some intermediate form, etc. The computer-readable storage medium may include any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a mobile hard disk, a magnetic disk, an optical disc, a computer memory, a read-only memory (ROM, Read-Only Memory) ), Random Access Memory (RAM, Random Access Memory), electrical carrier signals, telecommunications signals and software distribution media, etc. It should be noted that the content contained in the computer-readable storage medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in jurisdictions. For example, in some jurisdictions, according to legislation and patent practice, computer-readable storage media The medium does not include electrical carrier signals and telecommunication signals.

In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product.

The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present invention are generated in whole or in part. The computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, computer, server or data center Transmit to another website, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be stored by a computer or a data storage device including a server, a data center, and the like integrated with one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, Solid State Disk (SSD)), or the like.

Those skilled in the art can clearly understand that for the convenience and conciseness of the description, the specific working processes of the system, device and unit described above can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical, or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or software function unit.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application essentially or part of the contribution to the existing technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , Including several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program code .

It should be noted that the sequence numbers of the above embodiments of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments. And the terms "including", "comprising", or any other variants thereof are intended to cover non-exclusive inclusions, so that a process, device, article, or method that includes a series of elements includes not only those elements, but also those that are not explicitly listed The other elements listed may also include elements inherent to such processes, devices, objects, or methods. Without more restrictions, the element defined by the sentence "include one..." does not exclude that there are other identical elements in the process, device, article or method that includes the element.

The above are only the preferred embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by the description and drawings of the present invention, or directly or indirectly used in other related technical fields The same reason is included in the patent protection scope of the present invention.

Claims

A copy deployment method, characterized in that the method includes:

Monitor the first node event of the target node where the copy is deployed;

Determine whether the first node event affects the current number of online copies of the copy;

If the first node event affects the current online copy number of the copy, update the current online copy number of the copy according to the first node event;

Determine whether the updated current online copy quantity meets the preset copy quantity fluctuation range;

If the updated current online copy number does not satisfy the preset fluctuation range of the copy number, the copy is redeployed, wherein the current online copy number of the redeployed copy meets the fluctuation range of the copy number.
The method according to claim 1, wherein, if the updated current number of online copies does not satisfy the preset fluctuation range of the number of copies, redeploying the copies includes:

If the updated current online copy quantity is less than the minimum value of the preset copy quantity fluctuation range, add the copy operation.
The method according to claim 2, wherein the current number of online copies of the added copy is the maximum value of the fluctuation range of the number of copies.
The method according to claim 1, wherein, if the updated current number of online copies does not satisfy the preset fluctuation range of the number of copies, redeploying the copies includes:

If the updated current online copy number is greater than the maximum value of the preset copy number fluctuation range, delete the copy.
The method according to claim 4, wherein the current number of online copies of the deleted copy is the maximum value of the fluctuation range of the number of copies.
The method according to any one of claims 1 to 5, wherein before the monitoring the first node event of the target node where the copy is deployed, the method further comprises:

After receiving the copy deployment task, determine the multiple areas to be deployed;

According to the population of each of the areas, determine the distribution ratio of multiple copies of the areas;

Calculate the number of copies to be deployed in each of the areas according to the total number of copies and the copy allocation ratio;

For each of the areas, determine a target node where the area is currently online and whose storage space is greater than a preset storage space threshold, and deploy the copy on the target node of the area according to the number of copies.
The method according to any one of claims 1 to 5, wherein before the monitoring the first node event of the target node where the copy is deployed, the method further comprises:

After receiving the copy deployment task, obtain the copy allocation ratio for multiple regions carried by the copy deployment task;

Calculate the number of copies to be deployed in each of the areas according to the total number of copies and the copy allocation ratio;

For each of the regions, from multiple nodes currently online, determine the node whose resource usage rate is lower than the preset resource usage threshold as the target node, and deploy on the target node of the region according to the number of copies The copy.
The method according to any one of claims 1 to 5, wherein after updating the current online copy number of the copy according to the node event, the method further comprises:

Send a node event acquisition request to the target node;

Receiving a second node event returned by the target node in response to the node event acquisition request;

According to the second node event, count the current number of online copies of the copy;

Determine whether the updated number of current online copies is consistent with the counted current number of online copies;

If the updated current online copy number is consistent with the counted current online copy number, execute the judgment to determine whether the updated current online copy number meets the preset copy number fluctuation range.
A cloud server, characterized in that the cloud server includes a memory and a processor, and a copy deployment program executable by the processor is stored on the memory, and the copy deployment program is implemented when the processor executes The copy deployment method according to any one of claims 1 to 8.
A computer-readable storage medium, characterized in that a copy deployment program is stored on the computer-readable storage medium, and the copy deployment program can be executed by one or more processors to implement claims 1 to 6 The copy deployment method described in any one of the above.