WO2020192065A1

WO2020192065A1 - Method for achieving cross-cluster high availability, apparatus, system, and device

Info

Publication number: WO2020192065A1
Application number: PCT/CN2019/109106
Authority: WO
Inventors: 赵云; 王志强; 徐根林; 孙迁
Original assignee: 苏宁云计算有限公司; 苏宁易购集团股份有限公司
Priority date: 2019-03-22
Filing date: 2019-09-29
Publication date: 2020-10-01
Also published as: CN111726388A; CA3176454A1

Abstract

The present invention relates to the technical field of big data, and disclosed are a method for achieving cross-cluster high availability, an apparatus, a system, and a device. The method comprises: monitoring cluster information of at least two data service clusters configured by means of data synchronization, the cluster information at least comprising cluster state information and cluster address information; obtaining the cluster information in real time by means of a distributed coordination service; and requesting access to the corresponding data service clusters according to the cluster information. According to the present invention, cluster information of at least two data service clusters having data synchronized is monitored, the cluster information is then obtained in real time by means of a distributed coordination service, and access to the corresponding data service clusters is requested according to the cluster information obtained in real time, so that many shortcomings concerning cross-cluster in the prior art are overcome.

Description

Method, device, system and equipment for implementing cross-cluster high availability

Technical field

The present invention relates to the technical field of big data, in particular to a method, device, system and equipment for implementing cross-cluster high availability.

Background technique

High-availability cluster, the original English is High Availability Cluster, referred to as HA Cluster. Simply put, a cluster is a set of computers that provide users with a set of network resources as a whole. These individual computer systems are the nodes of the cluster. A high-availability cluster (HA cluster) refers to a host group that runs like a single system and supports (computers) to continue normal operation. High-availability cluster refers to the server cluster technology for the purpose of reducing service interruption time. It minimizes the impact of software/hardware/man-made failures on the business by protecting users' business programs to provide uninterrupted services to the outside world.

Therefore, currently in the field of big data, components that provide real-time data read and write capabilities, such as HBase and ES services, are designed with high availability for each role in the cluster, and data synchronization technology is adopted between multiple clusters. However, multi-clusters are built in the industry, mainly used for read-write separation and data backup, but they do not have the ability to automatically switch access and concurrent access between multiple clusters, which are specifically reflected in the following aspects: 1. Switching clusters requires changes The client is restarted after configuration; 2. The client cannot be controlled to switch clusters on the server; 3. When the waiting time of the client request is too long, it cannot request other clusters at the same time.

Summary of the invention

In order to solve the problems of the prior art, the embodiments of the present invention provide a method, device, system, and equipment for implementing cross-cluster high availability, which solves many shortcomings in the prior art in cross-cluster. The technical solution is as follows:

In the first aspect, a method for implementing cross-cluster high availability is provided, and the method includes:

Monitor cluster information of at least two data service clusters configured through data synchronization, where the cluster information includes at least cluster status information and cluster address information; obtain the cluster information in real time through a distributed coordination service; perform corresponding data based on the cluster information Request access to the service cluster.

With reference to the first aspect, in a first possible implementation manner, the monitoring cluster information of at least two data service clusters configured through data synchronization includes: regularly monitoring the cluster status information of the at least two data service clusters; The cluster state information of the changed state is notified to the distributed coordination service.

With reference to the first possible implementation manner of the first aspect, in the second possible implementation manner, the data synchronization configuration includes: configuring the mutual replication relationship between the at least two data service clusters, and carrying the source cluster The data service request of the ID information is synchronized between the at least two data service clusters.

With reference to the first aspect, in a third possible implementation manner, the real-time acquisition of the cluster information through the distributed coordination service includes: real-time monitoring of the cluster information, and real-time response to the cluster status information when the cluster status changes Notice.

Combining the first aspect and any one of the first to three possible implementation manners of the first aspect, in the fourth to seventh possible implementation manners, the requesting access to the corresponding data service cluster according to the cluster information includes: : According to the cluster information, priority is given to accessing the clusters in the order of the available cluster status.

With reference to the fourth to seventh possible implementation manners of the first aspect, in the eighth to eleventh possible implementation manners, according to the cluster information, prioritizing access to clusters in the order of available cluster status includes: According to the cluster information, the first cluster address is obtained to determine whether the current cluster state is available, and when the judgment result is unavailable, the next cluster address is obtained, and the step of judging whether the current cluster state is available is jumped to; when the judgment result is available, Request access to the current cluster, and further determine whether the current cluster processing time exceeds the preset threshold, if it does not exceed, obtain the cluster feedback result; if it exceeds, concurrently request to access the next available cluster to obtain the priority return cluster feedback result.

In a second aspect, a device for implementing cross-cluster high availability is provided. The device includes a monitoring module for monitoring cluster information of at least two data service clusters configured through data synchronization, where the cluster information includes at least cluster status Information and cluster address information; a distributed coordination service module for obtaining the cluster information in real time through a distributed coordination service; a request access control module for requesting access to a corresponding data service cluster according to the cluster information.

With reference to the first aspect, in a first possible implementation manner, the monitoring module regularly monitors the cluster status information of at least two data service clusters, and notifies the distributed coordination service of the cluster status information of the cluster status change Module.

In combination with the first possible implementation of the first aspect, in the second possible implementation, the distributed coordination service module is used for real-time monitoring of the cluster information, and real-time notification of the cluster information when the cluster status changes. .

With reference to the first aspect, in a third possible implementation manner, the device further includes a data synchronization configuration module that configures the mutual replication relationship between the at least two data service clusters, and includes The data service request of the source cluster ID information is synchronized between the at least two data service clusters.

Combining the first aspect and any one of the first to three possible implementation manners of the first aspect, in the fourth to seventh possible implementation manners, the request access control module preferentially accesses the cluster status according to the cluster information The cluster with the highest available order.

In combination with the fourth to seventh possible implementation manners of the first aspect, in the eighth to eleventh possible implementation manners, the request access control module preferentially accesses the clusters whose cluster status is available in order according to the cluster information. , Including: obtaining the first cluster address according to the cluster information, judging whether the current cluster state is available, when the judgment result is unavailable, obtaining the next cluster address, and jumping to the step of judging whether the current cluster state is available; If the result is available, request access to the current cluster, and further determine whether the current cluster processing time exceeds the preset threshold, if not, obtain the cluster feedback result; if it exceeds, concurrently request access to the next available cluster to obtain the priority return cluster feedback result.

In a third aspect, a system for realizing cross-cluster high availability is provided. The system includes: at least two data service clusters configured through data synchronization for realizing client request access to data services; the server side includes monitoring A device and a distributed coordination server, the monitoring device is used to monitor the cluster information of the at least two data service clusters, the cluster information includes at least cluster status information and cluster address information; the distributed coordination server is used to pass The distributed coordination service obtains the cluster information in real time; the client includes a controller, and the controller is used to request access to the corresponding data service cluster according to the cluster information received from the server.

With reference to the third aspect, in a first possible implementation manner, the monitoring device regularly monitors the cluster status information of at least two data service clusters, and notifies the distributed coordination server of the cluster status information of the cluster status change; The controller obtains the cluster information from the distributed coordination server, obtains the first cluster address according to the cluster information, determines whether the current cluster status is available, and when the judgment result is unavailable, obtains the next cluster address, Jump to the step of judging whether the current cluster status is available; when the judgment result is available, request access to the current cluster, and further judge whether the current cluster processing time exceeds the preset threshold, if not, get the cluster feedback result; if it exceeds, request access concurrently The next available cluster gets the cluster feedback result that is returned first.

In a fourth aspect, a device for implementing cross-cluster high availability is provided. The device includes: a processor; a memory for storing executable instructions of the processor; wherein the processor is configured to pass through the The instructions can be executed to execute the steps of the method for achieving cross-cluster high availability described in any one of the above solutions.

The cross-cluster high availability implementation method, device, system, and equipment provided by the embodiments of the present invention monitor the cluster information of at least two data service clusters that are synchronized with data, and then obtain the cluster information in real time through the distributed coordination service, and then according to The cluster information obtained in real time is used to request access to the corresponding data service cluster, and the following beneficial effects are achieved:

1. First of all, it realizes smoother cluster migration and switching between multiple clusters, that is, cluster migration and switching that the client does not perceive, and the cluster can be seamlessly switched on the server side manually to meet the needs of cluster operation and maintenance. Multi-cluster high availability of data services such as big data real-time reading and writing to improve overall availability;

2. Secondly, when the server cluster performs operation and maintenance operations, it does not affect client access and reduces the abnormal rate of the client; when the request time exceeds the threshold, the client can concurrently request other clusters, reducing the waiting time of the client and reducing the client Maximum request delay;

3. In addition, the server has the ability to adjust different client tenants to access different servers, and realizes the ability of the client to access multiple clusters in parallel to reduce the client response time, and has the advantages of efficient and precise control.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained from these drawings without creative work.

Figure 1 is a flowchart of a method for implementing cross-cluster high availability provided by an embodiment of the present invention;

FIG. 2 is an example of the overall framework of a method for implementing cross-cluster high availability provided by an embodiment of the present invention;

3 is an example of 103 steps in the method for implementing cross-cluster high availability provided by an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a device for implementing cross-cluster high availability provided by an embodiment of the present invention;

5 is an example of a request sequence for a cross-cluster high-availability implementation device provided by an embodiment of the present invention to perform a cross-cluster high-availability service;

6 is a schematic diagram of the system structure for implementing cross-cluster high availability provided by an embodiment of the present invention;

Fig. 7 is a schematic diagram of a device structure for implementing cross-cluster high availability provided by an embodiment of the present invention.

detailed description

In order to make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are merely Some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention. It should be noted that, in the description of the present invention, "a plurality of" means two or more, unless otherwise specifically defined.

The embodiment of the present invention provides a cross-cluster high-availability implementation method, device, system, and equipment, by monitoring the cluster information of at least two data service clusters that are synchronized with data, and then obtaining the cluster information in real time through a distributed coordination service, Then, request access to the corresponding data service cluster based on the cluster information obtained in real time. This achieves smoother cluster migration and switching between multiple clusters, that is, cluster migration and switching without the client's perception, and the cluster can be seamlessly switched on the server side manually to meet the needs of cluster operation and maintenance; in addition, It can reduce the maximum request delay of the client and has the advantages of high efficiency and precise control. Therefore, the cross-cluster high-availability implementation method, device, system and equipment not only realize the high availability of multiple clusters of data services such as big data real-time reading and writing to improve overall availability, but also realize the ability of clients to access multiple clusters in parallel. Reduce client response time and can be widely used in big data fields involving high-availability cluster operation and maintenance.

The method, device, system, and equipment for implementing cross-cluster high availability provided by the embodiments of the present invention will be described in detail below in conjunction with specific embodiments and drawings.

Example 1

FIG. 1 is a flowchart of a method for implementing cross-cluster high availability provided by an embodiment of the present invention, and FIG. 2 is an example of the overall framework of a method for implementing cross-cluster high availability provided by an embodiment of the present invention. As shown in Figure 1 and Figure 2, the method for implementing cross-cluster high availability provided by the embodiment of the present invention includes the following steps:

101. Monitor cluster information of at least two data service clusters configured through data synchronization, where the cluster information includes at least cluster state information and cluster address information.

Here, you can use at least two (ie, two or more) data service clusters that have been or temporarily built, and configure the data synchronization function between each cluster, that is, configure the mutual replication relationship between at least two data service clusters, Synchronize the data service request with the source cluster ID information between at least two data service clusters. For example, when a data write request is requested from a certain cluster, the write request is synchronized to other clusters, and the source cluster ID is recorded in the request. To prevent the request from being passed back to the source system. In addition, the data service types of the data service cluster here include real-time data reading and writing services, etc.

Specifically, the above 101 steps can be performed in the following manner:

Regularly monitor the cluster status information of at least two data service clusters; notify the distributed coordination service of the cluster status information of the cluster status change.

In order to monitor the status information of each cluster regularly, a monitoring program or monitoring module needs to be deployed. Generally, the timing frequency can be set to a frequency of 1 to 10 seconds. In addition, a service with distributed coordination functions needs to be built for Record each cluster information, especially cluster status information, where the cluster status information mainly includes cluster availability information and status information such as cluster availability changes.

It is worth noting that in step 101, the process of monitoring the cluster information of at least two data service clusters configured through data synchronization can be implemented in other ways besides the method described in the above steps. The embodiment of the present invention is specific The method is not limited.

102. Obtain cluster information in real time through the distributed coordination service.

Specifically, the cluster information is monitored in real time, and the cluster status information of the cluster status change is notified accordingly in real time. Through the distributed coordination service, the cluster status information of the cluster status change is notified, such as to the client, so that the client after the access configuration accesses the distributed coordination service to obtain the cluster information of each data service cluster.

It is worth noting that the process of obtaining cluster information in real time through the distributed coordination service in step 102 may be implemented in other ways in addition to the manner described in the foregoing steps, and the embodiment of the present invention does not limit the specific manner.

103. Perform request access to the corresponding data service cluster according to the cluster information.

According to the cluster information, priority is given to accessing the clusters with the highest cluster status as available.

Specifically, it includes the following sub-steps:

According to the cluster information, get the first cluster address,

Determine whether the current cluster status is available. When the result of the determination is unavailable, get the next cluster address and jump to the step of determining whether the current cluster status is available;

When the judgment result is available, request to access the current cluster, and further judge whether the current cluster processing time exceeds the preset threshold, if not, obtain the cluster feedback result; if it exceeds, concurrently request to access the next available cluster, and obtain the priority return cluster feedback result .

Here, preferably, before obtaining the first cluster address, a distributed coordination service is requested to obtain all configured cluster addresses of the current client tenant. In fact, the embodiment of the present invention does not impose special restrictions on the time point for obtaining the configuration cluster address, and it can be selected according to actual conditions.

Fig. 3 is an example of step 103 in the method for implementing cross-cluster high availability provided by an embodiment of the present invention. As shown in Figure 3, Step 103 includes the following sub-steps:

Step 1: The client requests the distributed coordination service to obtain all the configured cluster addresses of the current client tenant;

Step 2: Get the first cluster;

Step 3: Determine whether the current cluster status is available, if not available, go to Step 4, and adjust to Step 5 if available;

Step 4: Get the next cluster and jump to Step 3;

Step 5: Request the current cluster;

Step 6: Determine whether the current cluster processing time exceeds the preset threshold. If it exceeds, go to Step 7, and adjust to Step 9;

Step 7: Concurrently request the next available cluster;

Step 8: Obtain the cluster feedback results that are returned first, and end the current process;

Step 9: Obtain the cluster feedback result and end the current process.

It is worth noting that in step 103, the process of requesting access to the corresponding data service cluster according to the cluster information can be implemented in other ways besides the method described in the above steps. The specific method is not described in the embodiment of the present invention. limited.

Example 2

Fig. 4 is a schematic structural diagram of a device for implementing cross-cluster high availability provided by an embodiment of the present invention. FIG. 5 is an example of a request sequence for a cross-cluster high-availability implementation device provided by an embodiment of the present invention to perform a cross-cluster high-availability service. As shown in FIG. 4 and FIG. 5, the device 2 for implementing cross-cluster high availability provided by the embodiment of the present invention includes a monitoring module 21, a distributed coordination service module 22 and a request access control module 23.

The monitoring module 21 is configured to monitor cluster information of at least two data service clusters configured through data synchronization, and the cluster information includes at least cluster state information and cluster address information. Specifically, the monitoring module 21 regularly monitors the cluster status information of at least two data service clusters, and notifies the distributed coordination service module 22 of the cluster status information of the cluster status change.

The distributed coordination service module 22 is used to obtain cluster information in real time through the distributed coordination service. Specifically, the distributed coordination service module 22 is used for real-time monitoring of cluster information, and real-time notification of cluster information that has changed in the cluster state.

The request access control module 23 is used for requesting access to the corresponding data service cluster according to the cluster information. Specifically, requesting the access control module 23 to preferentially access the clusters whose cluster status is available in order according to the cluster information further includes the following sub-steps:

According to the cluster information, get the first cluster address,

In addition, the above-mentioned cross-cluster high-availability implementation device further includes a data synchronization configuration module 24. The data synchronization configuration module 24 configures the mutual replication relationship between at least two data service clusters, and requests the data service with the source cluster ID information in Synchronize between at least two data service clusters.

Preferably, the monitoring module 21, the distributed coordination service module 22, and the data synchronization configuration module 24 are set on the client, and the request access control module 23 is set on the server. In fact, as long as it does not deviate from the inventive concept of the present invention, for the monitoring module 21, the distributed coordination service module 22, the request access control module 23, and the data synchronization configuration module 24 in the cross-cluster high-availability implementation device, how to perform terminal settings, It can be determined according to actual conditions, and is not particularly limited in the embodiment of the present invention.

Example 3

Figure 6 is a schematic diagram of the system structure for implementing cross-cluster high availability provided by an embodiment of the present invention. As shown in Figure 6, the cross-cluster high availability implementation system provided by an embodiment of the present invention includes at least two data service clusters configured through data synchronization , Client 31 and Server 32. Among them, at least two data service clusters are used to implement client requests to access data services.

The server 31 includes a monitoring device 311 and a distributed coordination server 312. The monitoring device 311 is used to monitor cluster information of at least two data service clusters. The cluster information includes at least cluster status information and cluster address information. The distributed coordination server 312 is configured to obtain cluster information in real time through the distributed coordination service. The monitoring device 311 regularly monitors the cluster status information of at least two data service clusters, and notifies the distributed coordination server 312 of the cluster status information of the cluster status change. The distributed coordination server 312 is used for real-time monitoring of cluster information, and real-time notification of cluster information that has changed in the cluster state.

The client 32 includes a controller 321. The controller 321 is used to request access to the corresponding data service cluster according to the cluster information received from the server 31. Preferably, according to the cluster information, priority is given to accessing the clusters in the order of the available cluster status. . Specifically, the controller 321 obtains cluster information from the distributed coordination server 312, obtains the first cluster address according to the cluster information, determines whether the current cluster status is available, and when the judgment result is unavailable, obtains the next cluster address and jumps to Steps to determine whether the current cluster status is available; when the result of the determination is available, request access to the current cluster, and further determine whether the current cluster processing time exceeds the preset threshold, if not, obtain the cluster feedback result; if it exceeds, concurrently request access to the next available Cluster, get the cluster feedback result that is returned first.

Example 4

FIG. 7 is a schematic diagram of the structure of a device for implementing cross-cluster high availability provided by an embodiment of the present invention. As shown in FIG. 7, the device 4 for implementing cross-cluster high availability provided by an embodiment of the present invention includes a processor 41 and a memory 42; the memory 42 is used The executable instructions of the processor 41 are stored therein; wherein the processor 41 is configured to execute the steps of the method for realizing cross-cluster high availability provided by the embodiments of the present invention via the executable instructions.

It should be noted that when the cross-cluster high-availability implementation devices, systems, and equipment provided in the above embodiments trigger cross-cluster high-availability implementation services, only the division of the above-mentioned functional modules is used as an example. In actual applications, it can be as required The above-mentioned function allocation is completed by different functional modules, that is, the internal structure of the device, system, or equipment is divided into different functional modules to complete all or part of the functions described above. In addition, the cross-cluster high-availability implementation device, system, and equipment provided in the above-mentioned embodiments belong to the same concept as the cross-cluster high-availability implementation method embodiment. For the specific implementation process, please refer to the method embodiment, which will not be repeated here.

All the above-mentioned optional technical solutions can be combined in any way to form an optional embodiment of the present invention, which will not be repeated here.

In summary, the cross-cluster high-availability implementation method, device, system, and equipment provided by the embodiments of the present invention monitor the cluster information of at least two data service clusters for data synchronization, and then obtain real-time data through distributed coordination services Cluster information, and then request access to the corresponding data service cluster according to the cluster information obtained in real time, which has the following beneficial effects compared with the prior art:

Those of ordinary skill in the art can understand that all or part of the steps in the foregoing embodiments can be implemented by hardware, or by a program instructing relevant hardware to be completed. The program can be stored in a computer-readable storage medium. The storage medium mentioned can be a read-only memory, a magnetic disk or an optical disk, etc.

The embodiments of the present application are described with reference to the flowcharts and/or block diagrams of the methods, equipment (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and/or block in the flowchart and/or block diagram, and the combination of processes and/or blocks in the flowchart and/or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing equipment are generated It is a device that realizes the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device. The device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment. The instructions provide steps for implementing functions specified in a flow or multiple flows in the flowchart and/or a block or multiple blocks in the block diagram.

Although the preferred embodiments of the embodiments of the present application have been described, those skilled in the art can make additional changes and modifications to these embodiments once they learn the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the embodiments of the present application.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. In this way, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection of the present invention. Within range.

The content not described in detail in this specification belongs to the prior art known to those skilled in the art.

Claims

A method for implementing cross-cluster high availability, characterized in that the method includes:

Monitoring cluster information of at least two data service clusters configured through data synchronization, where the cluster information includes at least cluster state information and cluster address information;

Obtain the cluster information in real time through a distributed coordination service;

Request access to the corresponding data service cluster according to the cluster information.
The method according to claim 1, wherein the monitoring cluster information of at least two data service clusters configured through data synchronization comprises:

Regularly monitor the cluster status information of at least two data service clusters;

Notifying the distributed coordination service of the cluster state information of the cluster state change.
The method according to claim 2, wherein the data synchronization configuration comprises:

Configure the mutual replication relationship between the at least two data service clusters, and synchronize the data service request with the source cluster ID information between the at least two data service clusters.
The method according to claim 1, wherein said obtaining said cluster information in real time through a distributed coordination service comprises:

Monitor the cluster information in real time, and notify the cluster status information of the cluster status change in real time.
The method according to any one of claims 1 to 4, wherein the requesting access to a corresponding data service cluster according to the cluster information comprises:

According to the cluster information, priority is given to accessing the clusters in the order of the available cluster status.
The method according to claim 5, characterized in that, according to the cluster information, prioritizing access to the clusters whose cluster status is available in the first order comprises:

According to the cluster information, obtain the first cluster address,

Determine whether the current cluster status is available. When the result of the determination is unavailable, get the next cluster address and jump to the step of determining whether the current cluster status is available;

When the judgment result is available, request to access the current cluster, and further judge whether the current cluster processing time exceeds the preset threshold, if not, obtain the cluster feedback result; if it exceeds, concurrently request to access the next available cluster, and obtain the priority return cluster feedback result .
A device for implementing cross-cluster high availability, characterized in that the device includes:

A monitoring module, configured to monitor cluster information of at least two data service clusters configured through data synchronization, where the cluster information includes at least cluster status information and cluster address information;

The distributed coordination service module is used to obtain the cluster information in real time through the distributed coordination service;

The request access control module is used for requesting access to the corresponding data service cluster according to the cluster information.
The device according to claim 7, wherein the monitoring module regularly monitors the cluster status information of at least two data service clusters, and notifies the cluster status information of the cluster status changes to the distributed coordination service module.
8. The device according to claim 7, wherein the distributed coordination service module is used to monitor the cluster information in real time, and notify the cluster information of the cluster status change in real time.
7. The device according to claim 7, wherein the device further comprises a data synchronization configuration module, the data synchronization configuration module configures the mutual replication relationship between the at least two data service clusters, and carries a source The data service request of the cluster ID information is synchronized between the at least two data service clusters.
The device according to any one of claims 7 to 10, wherein the request access control module preferentially accesses the clusters in the order of the available cluster status according to the cluster information.
The device according to claim 11, wherein the request access control module, based on the cluster information, preferentially accesses the cluster with the cluster status available in the first order, comprising:

According to the cluster information, obtain the first cluster address,

Determine whether the current cluster status is available. When the result of the determination is unavailable, get the next cluster address and jump to the step of determining whether the current cluster status is available;

When the judgment result is available, request to access the current cluster, and further judge whether the current cluster processing time exceeds the preset threshold, if not, obtain the cluster feedback result; if it exceeds, concurrently request to access the next available cluster, and obtain the priority return cluster feedback result .
A system for implementing cross-cluster high availability, characterized in that the system includes:

At least two data service clusters configured through data synchronization are used to implement client requests to access data services;

The server side includes a monitoring device and a distributed coordination server, the monitoring device is used to monitor the cluster information of the at least two data service clusters, and the cluster information includes at least cluster status information and cluster address information; the distributed coordination A server for obtaining the cluster information in real time through a distributed coordination service;

The client includes a controller, and the controller is configured to request access to a corresponding data service cluster according to the cluster information received from the server.
The system according to claim 13, wherein:

The monitoring device regularly monitors the cluster status information of at least two data service clusters, and notifies the distributed coordination server of the cluster status information of the cluster status change;

The controller obtains the cluster information from the distributed coordination server, obtains the first cluster address according to the cluster information, determines whether the current cluster status is available, and when the judgment result is unavailable, obtains the next cluster address, Jump to the step of judging whether the current cluster status is available; when the judgment result is available, request access to the current cluster, and further judge whether the current cluster processing time exceeds the preset threshold, if not, get the cluster feedback result; if it exceeds, request access concurrently The next available cluster gets the cluster feedback result that is returned first.
A device for realizing cross-cluster high availability, characterized in that the device includes:

processor;

A memory for storing executable instructions of the processor;

Wherein, the processor is configured to execute the steps of the method for achieving cross-cluster high availability according to any one of claims 1 to 6 via the executable instructions.