CN116991635A - Data synchronization method and data synchronization device - Google Patents
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Abstract
The application provides a data synchronization method and a data synchronization device, the method firstly receives access information configuration operation to a main node and at least two auxiliary nodes through a first interface, responds to the access information configuration operation, acquires synchronous access rights to the main node and the at least two auxiliary nodes, then receives a data synchronization request from the main node to the at least two auxiliary nodes through a second interface, responds to the data synchronization request, synchronously accesses first data of the main node and second data of each auxiliary node through a target interface, compares the first data with each second data, determines difference data of the main node and each auxiliary node according to a comparison result, finally synchronously processes the difference data, and displays synchronous state data through a third interface. The application can complete the data synchronization of the main node and at least two auxiliary nodes at the same time, realizes the improvement of the synchronization efficiency under the multi-node synchronization scene, and ensures the data consistency.
Description
Technical Field
The present application relates to the field of data processing technologies, and in particular, to a data synchronization method and a data synchronization device.
Background
Object store is a data storage architecture for large-scale storage of unstructured data, where each item of data is designated as an object and stored in a bucket. When data synchronization is currently implemented, the object storage system to be synchronized is used for controlling to send the data to be synchronized to the target object storage systems, and in order to improve the security of data storage, two or more target object storage systems are generally set to store the data, and the object storage systems to be synchronized respectively send the data to be synchronized to each target object storage system. However, in this manner, the synchronization process of the object storage system to be synchronized and the target object storage systems is performed separately, which results in lower data synchronization efficiency, and the consistency of the data in the target object storage systems cannot be ensured. In addition, since the data to be transmitted is determined only by the object storage system to be synchronized when transmitting currently, the target object storage system receives the data passively, which also easily causes the situation that two nodes are inconsistent.
Therefore, the current data synchronization method has the technical problems that the multi-node synchronization efficiency is low and the data consistency cannot be ensured, and needs to be improved.
Disclosure of Invention
The embodiment of the application provides a data synchronization method, a data synchronization device, electronic equipment and a storage medium, which are used for solving the technical problems that the data synchronization efficiency is low and the data consistency cannot be guaranteed in the existing object storage system.
In order to solve the technical problems, the embodiment of the application provides the following technical scheme:
the application provides a data synchronization method, which comprises the following steps:
receiving access information configuration operation of a main node and at least two auxiliary nodes through a first interface;
responding to the access information configuration operation, and acquiring synchronous access rights of the master node and the at least two auxiliary nodes;
receiving a data synchronization request from the master node to the at least two slave nodes through a second interface;
responding to the data synchronization request, synchronously accessing first data of the main node and second data of each auxiliary node through a target interface, comparing the first data with the second data, and determining difference data of the main node and each auxiliary node according to a comparison result;
and carrying out synchronous processing on the difference data, and displaying synchronous state data through a third interface.
Meanwhile, the embodiment of the application also provides a data synchronization device, which comprises:
the first receiving module is used for receiving the access information configuration operation of the main node and the at least two auxiliary nodes through a first interface;
the acquisition module is used for responding to the access information configuration operation and acquiring synchronous access rights of the main node and the at least two auxiliary nodes;
the second receiving module is used for receiving a data synchronization request from the main node to the at least two auxiliary nodes through a second interface;
the determining module is used for responding to the data synchronization request, synchronously accessing first data of the main node and second data of each auxiliary node through a target interface, comparing the first data with the second data, and determining difference data of the main node and each auxiliary node according to a comparison result;
and the synchronization module is used for carrying out synchronization processing on the difference data and displaying the synchronization state data through a third interface.
The application also provides an electronic device, which comprises a memory and a processor; the memory stores an application program, and the processor is configured to run the application program in the memory to perform the steps in the data synchronization method described in any one of the above.
The present application also provides a computer readable storage medium having stored thereon a computer program for execution by a processor to perform the steps of the data synchronization method of any one of the above.
The beneficial effects are that: the application provides a data synchronization method, a data synchronization device, electronic equipment and a storage medium, wherein the method firstly receives access information configuration operation on a main node and at least two auxiliary nodes through a first interface, responds to the access information configuration operation, acquires synchronous access rights on the main node and the at least two auxiliary nodes, then receives a data synchronization request from the main node to the at least two auxiliary nodes through a second interface, responds to the data synchronization request, synchronously accesses first data of the main node and second data of each auxiliary node through a target interface, compares the first data with the second data, determines difference data of the main node and each auxiliary node according to a comparison result, finally carries out synchronous processing on the difference data, and displays synchronous state data through a third interface. The application can realize the synchronous management of the main node and at least two auxiliary nodes by executing the access information configuration operation and initiating the data synchronous request in the interface of the control system, when the data synchronization is needed, the control system directly synchronously accesses the first data of the main node and the second data of each auxiliary node, then compares the first data with each second data to obtain difference data, and finally carries out synchronous processing on the difference data, thus the data synchronization of the main node and the at least two auxiliary nodes can be completed simultaneously.
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The technical solution and other advantageous effects of the present application will be made apparent by the following detailed description of the specific embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic view of a scenario of a data synchronization system according to an embodiment of the present application.
Fig. 2 is a flow chart of a data synchronization method according to an embodiment of the present application.
FIG. 3 is a schematic diagram of a second interface of the control system according to an embodiment of the present application.
Fig. 4 is a schematic diagram of a control system for comparing data in an embodiment of the application.
Fig. 5 is a schematic diagram of a third interface of the control system according to an embodiment of the application.
Fig. 6 is a schematic structural diagram of a data synchronization device according to an embodiment of the present application.
Fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.
The embodiment of the application provides a data synchronization method, a data synchronization device, electronic equipment and a storage medium. The data synchronization device may be integrated in an electronic device, which may be a server or a terminal.
Referring to fig. 1, fig. 1 is a schematic view of a scenario of an application of a data synchronization method for an article according to an embodiment of the present application, where the scenario may include a control system, a primary node, and n secondary nodes (n is an integer not smaller than 2), where the control system operates in a control device, the primary node and each secondary node respectively correspond to respective object storage systems, first data is stored in the object storage system of the primary node, and second data is stored in the object storage system of each secondary node, where:
the control system provides a node creation function, a synchronization plan creation function, a data comparison function, a data synchronization function, a synchronization state data display function, a master node switching function, a reverse synchronization function and the like, and a control person can perform configuration operation on a relevant interface of the control system so as to realize the functions.
The control personnel firstly creates a main node and n auxiliary nodes on the interface of the control system, configures the access information of the nodes, and the control system can acquire the synchronous access rights of the nodes after the configuration. Then, the control personnel can create a synchronization plan on the interface of the control system, and then automatically perform synchronization according to the plan, or can directly request synchronization on the interface of the control system. When the condition that the data can be synchronized is achieved, the control system receives a data synchronization request from the main node to n auxiliary nodes, then synchronously accesses first data of the main node and second data of the n auxiliary nodes through an S3 interface, compares the first data with the second data, and determines difference data of the main node and the n auxiliary nodes according to a comparison result. Finally, the control system performs synchronous processing on the difference data, in the synchronous process, the control system can display the synchronous state data so that a control person can know whether the synchronous state is normal or not, if the synchronous state is abnormal, the control system can keep an abnormal log for subsequent processing, and after the synchronous is completed, all data in the main node and n auxiliary nodes can be kept consistent. In addition, when the operation state of the main node is abnormal, the control system can control a certain auxiliary node to be switched into a new main node, or control second data in a certain auxiliary node to be synchronized into the main node, so that reverse synchronization of the data is realized, the main node data is recovered, and the data security is ensured.
It should be noted that, the schematic system scenario shown in fig. 1 is only an example, and the servers and the scenarios described in the embodiments of the present application are for more clearly describing the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application, and those skilled in the art can know that, with the evolution of the system and the appearance of the new service scenario, the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems. The following will describe in detail. The following description of the embodiments is not intended to limit the preferred embodiments.
Referring to fig. 2, fig. 2 is a flowchart of a data synchronization method according to an embodiment of the application, where the method includes:
s11: and receiving access information configuration operation to the main node and at least two auxiliary nodes through a first interface.
In the embodiment of the application, the main node refers to a production node, the auxiliary node refers to a backup node, the main node is used for storing service data, and the auxiliary node is used for backing up the service data. Data synchronization needs to be kept between the main node and the auxiliary node so as to ensure the effectiveness of data backup. Each node corresponds to an object storage system, in which a bucket is used to store unstructured data, each item of data is an object in the bucket, each node may include one or more buckets, and each bucket may store one or more data. For convenience of explanation, in the following embodiments, an object storage system corresponding to a primary node is referred to as a production object storage, and an object storage system corresponding to a secondary node is referred to as a backup object storage.
The data synchronization method is completed through the control system, the control system operates in the control equipment and is provided with various functional interfaces, and a control person can execute various operations in the functional interfaces to realize data synchronization. Before synchronizing the object storage systems of the master node and the slave node, it is necessary to create these nodes in the first interface of the control system and perform an access information configuration operation for each node, where the access information includes an access address (IP), an access user name (AccessKeyId), and an access user password (AccessKeySecret) of each object storage system.
S12: and responding to the access information configuration operation, and acquiring synchronous access rights of the master node and at least two auxiliary nodes.
The control system responds to the access information configuration operation to acquire the access information, and then the synchronous access authority of each node can be acquired based on the access information.
S13: and receiving a data synchronization request from the main node to at least two auxiliary nodes through a second interface.
When the data synchronization is performed on the master node and the slave nodes, related operations can be performed on the second interface of the control system to initiate a data synchronization request from the master node to each slave node to the control system. There are two ways in performing the operation. One is to directly display the "data synchronization" function control on the second interface, and the controller can directly execute a triggering operation on the "data synchronization" function control on the second interface, where the triggering operation generates a data synchronization request and is received by the control system. And the other is that a synchronous strategy configuration option is displayed on the second interface, a control person can execute selection operation on the options, a final synchronous strategy is generated according to a selection result, and a data synchronous request is generated and received by the control system when judging that the conditions in the synchronous strategy are met based on the synchronous strategy. As shown in fig. 3, these options may include, in particular, "per minute", "per hour", "per day", etc., where the data synchronization request is generated at a fixed point in time for each hour, when "per hour" is selected, the data synchronization request is generated at a fixed point in time for each day.
S14: and responding to the data synchronization request, synchronously accessing the first data of the main node and the second data of each auxiliary node through the target interface, comparing the first data with each second data, and determining difference data of the main node and each auxiliary node according to the comparison result.
And the control system responds to the data synchronization request and synchronously accesses the first data of the main node and the second data of each auxiliary node through a target interface, wherein the target interface is an S3 interface. After the first data and the second data are accessed, the first data and the second data can be compared to determine the difference data. When the first data and the second data are compared, a data list of the first data and the second data can be listed, and then each item in the list is compared in turn according to a preset sequence. As shown in fig. 4, the left node is a production node, the right node is one of the backup nodes, each node includes a plurality of buckets (buckets), each Bucket includes a plurality of objects (objects), each Object has a certain data volume, all objects have a total Object volume, and these information forms a data list of the two, and item-by-item comparison can be performed based on the data list.
In performing the data comparison, a variety of comparison modes may be employed.
Example 1: in one embodiment, S14 specifically includes:
s1411: the first data and the second data are compared respectively.
S1412: and according to the comparison result, respectively determining the first difference data which needs to be added or modified by each auxiliary node from the first data, and respectively determining the second difference data which needs to be deleted by each auxiliary node from the second data.
When the number of the auxiliary nodes is n, the second data of each auxiliary node can be compared with the first data once respectively, so that n groups of difference data are obtained. The difference data between the first data and the second data mainly comprises two types, namely, the first difference data which is needed to be added or modified by the auxiliary node and the second difference data which is needed to be deleted by the auxiliary node, wherein the first difference data is needed to be determined from the first data, and the second difference data is needed to be determined from the second data.
When the second data originally existing in the n secondary nodes are consistent, the n groups of difference data are also consistent, and after the subsequent synchronization, the data of the n secondary nodes can still be kept consistent. When the second data originally existing in the n secondary nodes are inconsistent, the n groups of difference data are inconsistent, but because each group of difference data uses the same first data as a reference, the data of the n secondary nodes can be consistent after subsequent synchronization.
In the embodiment, the master node is taken as a reference, n slave nodes and the master node are respectively compared to obtain n groups of difference data, and as each group of difference data is obtained according to the data comparison result of the master node and the slave nodes, the difference data is not only determined by the master node, so that the data consistency of each slave node can be ensured after each synchronization.
Example 2: in one embodiment, before S14, further comprising:
s14a: and comparing the first node data in the first auxiliary node with the second node data of each second auxiliary node.
S14b: and determining first type difference data between the first auxiliary node and each second auxiliary node according to the comparison result.
The n secondary nodes are divided into a first secondary node and n-1 second secondary nodes, second data in the first secondary node is called first node data, and second data in the second secondary node is called second node data. And comparing the first node data with the second node data in any time period between the current synchronization and the last synchronization, namely in a time period when the master node does not execute the task of sending the difference data to any slave node, and determining first type difference data between the first slave node and each second slave node according to a comparison result, wherein n-1 second slave nodes obtain n-1 groups of first type difference data.
Specifically, it is assumed that the first data in the primary node includes A3, B2, and C2, the first node data of the first secondary node includes A2, B2, and C2, n has a value of 3, the second node data of the second secondary node 1 includes A2, B1, and C1, the second node data of the second secondary node 2 includes B1 and C2, and the second node data of the second secondary node 3 includes B2 and C2.
After comparing the idle time periods, the first type difference data of the first auxiliary node and the second auxiliary node 1 comprises: b1, C1 that needs to be deleted in the second secondary node 1, B2, C2 that needs to be added or modified to the second secondary node 1; the first type of difference data of the first and second secondary nodes 2 comprises: b1 to be deleted in the second secondary node 2, A2, B2 to be newly added or modified to the second secondary node 2; the first type of difference data of the first and second secondary nodes 3 comprises: a2, which needs to be added or modified to the second secondary node 3.
At this time, S14 specifically further includes:
s1421: the first data in the primary node is compared with the second node data in the first secondary node.
S1422: and determining second class difference data between the main node and the first auxiliary node according to the comparison result.
S1423: according to the first type of difference data and the second type of difference data, third difference data which needs to be added or modified by the first auxiliary node is determined from the first data, fourth difference data which needs to be added or modified by each second auxiliary node is determined from the first node data, fifth difference data which needs to be deleted by the first auxiliary node is determined, and sixth difference data which needs to be deleted is determined from each second node data.
And comparing the first data in the main node with the second node data in the first auxiliary node, and determining second class difference data between the main node and the first auxiliary node according to the comparison result.
In the above embodiment, the first type of difference data between the first secondary node and each second secondary node has been determined, in this embodiment, the first secondary node is taken as a bridge between the first secondary node and the second type of difference data, the third difference data that needs to be added or modified by the first secondary node can be determined from the first data of the primary node, the n-1 fourth difference data that needs to be added or modified by the n-1 second secondary nodes is determined from the first node data of the first secondary node, the fifth difference data that needs to be deleted is determined, and the n-1 sixth difference data that needs to be deleted is determined from the n-1 second secondary nodes.
Specifically, after comparing the synchronization time periods, the second type difference data between the primary node and the first secondary node includes: a2, which needs to be deleted in the first secondary node, needs to be newly added or A3 to the first secondary node. Combining the first type of difference data and the second type of difference data, wherein third difference data determined from the first data are as follows: A3. the fourth difference data determined from the first node data are respectively: a3, B2, C2 corresponding to the second secondary node 1; a3, B2 corresponding to the second secondary node 2; a3 corresponding to the second secondary node 3. The sixth difference data determined from each second node data are respectively: a2, B1, C1 corresponding to the second secondary node 1, B1 corresponding to the second secondary node 2.
In embodiment 1, when data synchronization is required, the master node and each slave node need to be compared in the same time period to obtain n groups of difference data, which may cause a large calculation amount of the master node and cause abnormal or unstable performance of the master node. In embodiment 2, the first type of difference data may be obtained by comparing in the idle period, the first type of difference data may be recorded, the second type of difference data may be obtained by comparing in the data synchronization period, and then the first type of difference data and the second type of difference service data may be calculated comprehensively. Because the idle time period and the subsequent data synchronization time period can be staggered, the synchronization efficiency of the data synchronization stage can be improved, and the risk brought by the high concurrency condition that all comparisons are concentrated in the same time period is reduced.
In addition, all n groups of difference data obtained in embodiment 1 need to be synchronized by the master node, which may cause the master node to have high pressure and may cause abnormal or unstable performance of the master node. In embodiment 2, after the first difference data and the second difference data are obtained, the fifth difference data and the sixth difference data, which need to be deleted, in the first secondary node and the second secondary node, and the third difference data and the fourth difference data, which need to be added or modified, in the first secondary node and the second secondary node, may be automatically calculated, and the subsequent primary node only needs to synchronize with the first secondary node, and then the first secondary node synchronizes with each second secondary node. Because the master node needs to bear more functions, and the slave nodes have simpler functions, the first slave node can bear part of the synchronization pressure of the master node through hierarchical synchronization in embodiment 2, so that the data consistency of each slave node can be realized, and the stability of the master node is ensured.
Namely, in the embodiment 2, hierarchical synchronization between a plurality of secondary nodes and the primary node is realized through the above manner, so that the data volume to be compared and the data volume to be transmitted by the primary node in the data synchronization stage are reduced, the data consistency is ensured, the stability of the whole system is also ensured, and the comprehensive effect is better.
S15: and carrying out synchronous processing on the difference data, and displaying synchronous state data through a third interface.
After the difference data is obtained, only the difference data is subjected to synchronous processing, and other data are maintained as they are, so that the data amount required to be synchronized can be minimized. In the synchronization process, the control system may monitor the synchronization status and display synchronization status data on the third interface, where the synchronization status data may specifically include a synchronization speed, a total amount of synchronization data, a synchronized amount, an unsynchronized amount, a synchronization progress, and the like, and may specifically be as shown in fig. 5.
Two modes can be adopted when the synchronization is carried out, one mode is that all the difference data are determined firstly, then the difference data are synchronized, and at the moment, the calculation of the synchronization progress takes the time point of the first item of data of the difference data for starting synchronization as the initial time point; and the other is that the difference data are determined item by item in the comparison process, and the synchronous processing of the difference data can be started immediately when one piece of difference data is determined, and the calculation of the synchronous progress takes the time point at which the comparison is started as the starting time point.
In one embodiment, S15 specifically includes:
s1511: and deleting the corresponding second difference data from each secondary node.
S1512: and synchronizing the first difference data corresponding to each auxiliary node.
With the scheme in the above embodiment 1, when only the first difference data exists, the first difference data is directly transmitted from the master node to each of the slave nodes, and these data are newly added at each of the slave nodes. When only the second difference data exists, these data are deleted directly from the respective secondary nodes. When the first difference data and the second difference data exist at the same time, the second difference data existing in the auxiliary node are deleted, then the first difference data are sent to each auxiliary node from the main node, and the first difference data are newly added in the auxiliary node.
In one embodiment, S15 specifically further includes:
s1521: and deleting corresponding fifth difference data from the first auxiliary node in the first synchronization period, and synchronizing the third difference data from the main node to the first auxiliary node.
S1522: and deleting corresponding sixth difference data from each second auxiliary node in a second synchronization time period, and respectively synchronizing each fourth difference data from the first auxiliary node to each second auxiliary node, wherein the second synchronization time period is positioned after the first synchronization time period.
With the scheme in the above embodiment 2, in the first synchronization period, if only the third difference data exists, the third difference data is directly transmitted from the master node to the first slave node, and these data are newly added at the first slave node. When only fifth difference data exists, these data are deleted directly from the first secondary node. When the third difference data and the fifth difference data exist at the same time, deleting the fifth difference data existing in the first auxiliary node, then sending the third difference data from the main node to the first auxiliary node, and adding the third difference data in the first auxiliary node. In the second synchronization period, if only fourth difference data exists, each group of fourth difference data is directly transmitted from the first auxiliary node to each second auxiliary node, and the data is newly added in each second auxiliary node. When only sixth difference data exists, these data are deleted directly from each second sub-node. When fourth difference data and sixth difference data exist at the same time, the sixth difference data existing in each second auxiliary node are deleted, each group of fourth difference data is sent to each second auxiliary node from the first auxiliary node, and the data are newly added in each second auxiliary node.
In the embodiment of the application, in the first synchronization period, only the fifth difference data in the first auxiliary node is deleted, and the third difference data is sent to the first auxiliary node by the main node, so that the data synchronization between the main node and the first auxiliary node can be completed, and the fourth difference data and the sixth difference data can be synchronized in the second synchronization period after the first synchronization period. If all the auxiliary nodes need to synchronize data from the main node, the main node needs more data to synchronize, if the main node is abnormal in the middle, the data synchronization of all the auxiliary nodes can not be completed normally, and even the data is lost in the main node without the risk of successful synchronization in all the auxiliary nodes. In the embodiment of the application, after the data synchronization between the main node and the first auxiliary node is completed, the data in the first auxiliary node can be consistent with the data in the main node, and then even if the main node is abnormal, the first auxiliary node can continuously synchronize the data to each second auxiliary node, so that the risk is reduced. In addition, by adopting a staged synchronization mode, as the first synchronization time period and the second synchronization time period are staggered, the risk brought by the high concurrency condition that all the synchronization are concentrated in the same time period can be reduced.
In the current data synchronization scheme, since the data to be synchronized is only determined by the master node, if the master node has an exception before synchronization and the exception continues to synchronize when not processed in time, the exception may be caused to exist in the data in the slave node, and if the exception is data loss, the original part of the data in the slave node may be deleted by mistake after synchronization, which may cause that the part of the data in all the final nodes is lost, resulting in a large risk. In the embodiment of the application, after the difference data are obtained, the difference data can be checked first to judge whether the difference data are normally added, modified or deleted data or abnormal data. And when the verification passes, the subsequent synchronization flow is performed to improve the safety of data synchronization. There are a number of ways in which the verification can be performed.
In one embodiment, S15 specifically includes:
s1531: and displaying the difference data through a fourth interface.
S1532: and receiving a verification passing operation on the difference data through a fourth interface.
S1533: and responding to the verification passing operation, and synchronously processing the difference data.
In this embodiment, the verification manner may be manually verification, after the difference data is determined, the difference data may be displayed on the fourth interface, a control person may manually verify the difference data, determine whether the difference data is a difference caused by an abnormality, and if it is determined that the difference data is a difference generated by a normal operation, perform a triggering operation on the fourth interface, for example, a preset "pass through check" function control, where the operation may be used as a pass through check operation, and the control system may start to perform synchronous processing on the difference data in response to the pass through check operation.
In one embodiment, S15 specifically further includes:
s1541: and verifying the difference data according to preset verification conditions.
S1542: and when the verification is passed, carrying out synchronous processing on the difference data.
S1543: and when the verification fails, displaying the data which fails to pass the verification in the difference data through a fourth interface.
In this embodiment, the verification manner may be automatic, a preset verification condition may be set first, after the difference data is determined, verification is performed based on the preset verification condition, where the preset verification condition may be set according to an actual situation, for example, the preset verification condition may include certain keywords, key formats, and the like, if data meeting the keywords or the key formats is detected in the difference data, it is determined that the verification is abnormal, and the verification is not passed, at this time, the part of the data that is not passed in the difference data may be displayed in the fourth interface, and a subsequent processing procedure is determined manually. If the data meeting the conditions are not detected in the difference data, namely the preset check condition is met, the check is passed, and the control system can start to synchronously process the difference data.
By adopting the modes in the two embodiments, the safety of data synchronization can be further improved, and the problem that the abnormality in the main node affects the auxiliary node through the synchronization process is avoided.
In one embodiment, after S15, further comprising:
s16: monitoring the running state of a master node;
s17: if the operation state is abnormal, determining a second target auxiliary node from all auxiliary nodes according to the operation data of each auxiliary node;
s18: when the running state is the first abnormal state, switching the second target auxiliary node to a new main node;
s19: and when the running state is in a second abnormal state, synchronizing second data of a second target auxiliary node to the main node.
In the running process of the main node, the control system can carry out an arrow on the whole running state of the main node, once the running state of the main node is monitored to be abnormal, the running data of each auxiliary node can be obtained, wherein the running data specifically comprise the network environment, the server performance, the error log and the like of the auxiliary node, and one auxiliary node with the optimal comprehensive performance can be selected from all the auxiliary nodes to serve as a second target auxiliary node according to the data. If the running state of the main node is a first abnormal state, the second target auxiliary node is switched to a new main node, and all subsequent data synchronization processes take the new main node as a reference, wherein the first abnormal state is a state with larger abnormality degree and difficult restoration in a short time, and at the moment, the main node cannot be used normally, and the identity of the main node needs to be switched. If the running state of the main node is a second abnormal state, the second data in the second target auxiliary node can be synchronized to the main node, and the data in the main node and the data in the second target auxiliary node are kept consistent through data reverse synchronization, so that backup recovery is realized, wherein the second abnormal state is that the main node only loses data and no other functional abnormality exists. In addition, for the first abnormal state, after the second target auxiliary node is switched to the new main node, the old main node can be repaired, and if the old main node can be restored to the original state after being repaired, the old main node can also be switched to the main node again. By the mode, when the master node is abnormal, the safety of the data can be protected to the greatest extent.
As can be seen from the foregoing embodiments, according to the data synchronization method provided by the present application, synchronization management of a master node and at least two slave nodes can be achieved only by executing an access information configuration operation and initiating a data synchronization request in an interface of a control system, when data synchronization is required, the control system directly synchronizes and accesses first data of the master node and second data of each slave node, then obtains differential data by comparing the first data with each second data, and finally performs synchronization processing on the differential data, so that data synchronization of the master node and at least two slave nodes can be completed simultaneously.
On the basis of the method described in the foregoing embodiment, this embodiment will be further described from the perspective of a data synchronization device, and referring to fig. 6, fig. 6 specifically describes a data synchronization device provided in an embodiment of the present application, which may include:
A first receiving module 10, configured to receive, through a first interface, an access information configuration operation for a primary node and at least two secondary nodes;
an obtaining module 20, configured to obtain a synchronous access right to the master node and the at least two slave nodes in response to the access information configuration operation;
a second receiving module 30, configured to receive a data synchronization request from the primary node to the at least two secondary nodes through a second interface;
a determining module 40, configured to synchronously access, through a target interface, first data of the primary node and second data of each of the secondary nodes in response to the data synchronization request, compare the first data with the second data, and determine difference data of the primary node and each of the secondary nodes according to a comparison result;
and the synchronization module 50 is used for performing synchronization processing on the difference data and displaying the synchronization state data through a third interface.
In one embodiment, the determination module 40 includes:
the first comparison submodule is used for respectively comparing the first data with each second data;
and the first determining submodule is used for respectively determining first difference data which are needed to be added or modified by each auxiliary node from the first data according to the comparison result, and respectively determining second difference data which are needed to be deleted by each auxiliary node from the second data.
In one embodiment, the synchronization module 50 includes:
a first deleting sub-module, configured to delete corresponding second difference data from each of the secondary nodes;
and the first synchronization sub-module is used for synchronizing the first difference data corresponding to each auxiliary node from the main node to each auxiliary node.
In one embodiment, the at least two secondary nodes include a first secondary node and at least one second secondary node, and the data synchronization device further includes:
the comparison module is used for comparing the first node data in the first auxiliary node with the second node data of each second auxiliary node;
and the difference determining module is used for determining first type difference data between the first auxiliary node and each second auxiliary node according to the comparison result.
In one embodiment, the determination module 40 includes:
a second comparison sub-module for comparing the first data in the primary node with the second node data in the first secondary node;
the second determining submodule is used for determining second class difference data between the main node and the first auxiliary node according to the comparison result;
a third determining sub-module, configured to determine, according to the first type of difference data and the second type of difference data, third difference data that needs to be added or modified by the first secondary node from the first data, fourth difference data that needs to be added or modified by the second secondary node from the first node data, and fifth difference data that needs to be deleted by the first secondary node, and sixth difference data that needs to be deleted from the second node data.
In one embodiment, the synchronization module 50 includes:
a first deleting and synchronizing module, configured to delete, in a first synchronization period, corresponding fifth difference data from the first secondary node, and synchronize the third difference data from the primary node to the first secondary node;
and the second deleting and synchronizing module is used for deleting corresponding sixth difference data from each second auxiliary node in a second synchronizing time period and synchronizing each fourth difference data from the first auxiliary node to each second auxiliary node respectively, wherein the second synchronizing time period is positioned after the first synchronizing time period.
In one embodiment, the synchronization module 50 includes:
the first display sub-module is used for displaying the difference data through a fourth interface;
the receiving sub-module is used for receiving verification passing operation of the difference data through the fourth interface;
and the second synchronization sub-module is used for responding to the verification passing operation and carrying out synchronous processing on the difference data.
In one embodiment, the synchronization module 50 includes:
the verification sub-module is used for verifying the difference data according to preset verification conditions;
the third synchronization sub-module is used for carrying out synchronization processing on the difference data when the verification passes;
And the second display sub-module is used for displaying the data which do not pass the verification in the difference data through a fourth interface when the verification does not pass.
In one embodiment, the data synchronization device further comprises:
the monitoring module is used for monitoring the running state of the master node;
the node determining module is used for determining a second target auxiliary node from all auxiliary nodes according to the operation data of each auxiliary node if the operation state is abnormal;
the switching module is used for switching the second target auxiliary node into a new main node when the running state is a first abnormal state;
and the data synchronization module is used for synchronizing the second data of the second target auxiliary node to the main node when the running state is in the second abnormal state.
Compared with the prior art, the data synchronization device provided by the application can realize synchronous management of the main node and at least two auxiliary nodes by only executing access information configuration operation and initiating data synchronization request in the interface of the control system, when data synchronization is needed, the control system directly synchronously accesses the first data of the main node and the second data of each auxiliary node, then compares the first data with each second data to obtain difference data, and finally synchronously processes the difference data, so that the data synchronization of the main node and the at least two auxiliary nodes can be completed at the same time.
Accordingly, an embodiment of the present application also provides an electronic device, as shown in fig. 7, where the electronic device may include a Radio Frequency (RF) circuit 701, a memory 702 including one or more computer readable storage media, an input unit 703, a display unit 704, a sensor 705, an audio circuit 706, a wireless fidelity (WiFi, wireless Fidelity) module 707, a processor 708 including one or more processing cores, and a power supply 709. Those skilled in the art will appreciate that the server architecture shown in fig. 7 is not limiting of the server and may include more or fewer components than shown, or may combine certain components, or a different arrangement of components. Wherein:
the RF circuit 701 may be used for receiving and transmitting signals during a message or a call, and in particular, after receiving downlink information of a base station, the downlink information is processed by one or more processors 708; in addition, data relating to uplink is transmitted to the base station. The memory 702 may be used to store software programs and modules, and the processor 708 may perform various functional applications and data processing by executing the software programs and modules stored in the memory 702. The input unit 703 may be used to receive input numeric or character information and to generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.
The display unit 704 may be used to display information input by a user or information provided to the user and various graphical user interfaces of the server, which may be composed of graphics, text, icons, video, and any combination thereof.
The server may also include at least one sensor 705, such as a light sensor, a motion sensor, and other sensors. The audio circuitry 706 includes speakers that may provide an audio interface between the user and the server.
The WiFi belongs to a short-distance wireless transmission technology, and the server can help the user to send and receive e-mail, browse web pages, access streaming media and the like through the WiFi module 707, and provides wireless broadband internet access for the user. Although fig. 7 shows a WiFi module 707, it is to be understood that it does not belong to the necessary constitution of the server, and can be omitted entirely as needed within a range that does not change the essence of the application.
The processor 708 is the control center of the server, and uses various interfaces and lines to connect the various parts of the overall handset, performing various functions of the server and processing data by running or executing software programs and/or modules stored in the memory 702, and invoking data stored in the memory 702, thereby performing overall monitoring of the handset.
The server also includes a power supply 709 (e.g., a battery) for powering the various components, which may be logically connected to the processor 708 by a power management system, such as to perform charge, discharge, and power management functions via the power management system.
Although not shown, the server may further include a camera, a bluetooth module, etc., which will not be described herein. Specifically, in this embodiment, the processor 708 in the server loads executable files corresponding to the processes of one or more application programs into the memory 702 according to the following instructions, and the processor 708 executes the application programs stored in the memory 702, so as to implement the following functions:
receiving access information configuration operation of a main node and at least two auxiliary nodes through a first interface;
responding to the access information configuration operation, and acquiring synchronous access rights of the master node and the at least two auxiliary nodes;
receiving a data synchronization request from the master node to the at least two slave nodes through a second interface;
responding to the data synchronization request, synchronously accessing first data of the main node and second data of each auxiliary node through a target interface, comparing the first data with the second data, and determining difference data of the main node and each auxiliary node according to a comparison result;
And carrying out synchronous processing on the difference data, and displaying synchronous state data through a third interface.
In the foregoing embodiments, the descriptions of the embodiments are focused on, and the portions of an embodiment that are not described in detail in the foregoing embodiments may be referred to in the foregoing detailed description, which is not repeated herein.
Those of ordinary skill in the art will appreciate that all or a portion of the steps of the various methods of the above embodiments may be performed by instructions, or by instructions controlling associated hardware, which may be stored in a computer-readable storage medium and loaded and executed by a processor.
To this end, an embodiment of the present application provides a storage medium having stored therein a plurality of instructions capable of being loaded by a processor to perform the following functions:
receiving access information configuration operation of a main node and at least two auxiliary nodes through a first interface;
responding to the access information configuration operation, and acquiring synchronous access rights of the master node and the at least two auxiliary nodes;
receiving a data synchronization request from the master node to the at least two slave nodes through a second interface;
responding to the data synchronization request, synchronously accessing first data of the main node and second data of each auxiliary node through a target interface, comparing the first data with the second data, and determining difference data of the main node and each auxiliary node according to a comparison result;
And carrying out synchronous processing on the difference data, and displaying synchronous state data through a third interface.
The specific implementation of each operation above may be referred to the previous embodiments, and will not be described herein.
Wherein the storage medium may include: read Only Memory (ROM), random access Memory (RAM, random Access Memory), magnetic or optical disk, and the like.
The steps in any method provided by the embodiment of the present application may be executed by the instructions stored in the storage medium, so that the beneficial effects that any method provided by the embodiment of the present application may be achieved, which are detailed in the previous embodiments and are not repeated herein.
The foregoing describes in detail a data synchronization method, apparatus, electronic device and storage medium provided by the embodiments of the present application, and specific examples are applied to describe the principles and implementations of the present application, where the descriptions of the foregoing embodiments are only used to help understand the technical solution and core idea of the present application; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.
Claims (8)
1. A method of data synchronization, comprising:
receiving access information configuration operation of a main node and at least two auxiliary nodes through a first interface;
responding to the access information configuration operation, and acquiring synchronous access rights of the master node and the at least two auxiliary nodes;
receiving a data synchronization request from the master node to the at least two slave nodes through a second interface;
the at least two auxiliary nodes comprise a first auxiliary node and at least one second auxiliary node, and the first node data in the first auxiliary node and the second node data of each second auxiliary node are compared at any time between the first synchronous time and the second synchronous time; determining first type difference data between the first auxiliary node and each second auxiliary node according to the comparison result; the second synchronization time is a time after the first synchronization time;
comparing the first data in the master node with the second node data in the first slave node at the second synchronization moment; determining second class difference data between the main node and the first auxiliary node according to the comparison result; according to the first type of difference data and the second type of difference data, third difference data which is needed to be added or modified by the first auxiliary node is determined from the first data, fourth difference data which is needed to be added or modified by each second auxiliary node is determined from the first node data, fifth difference data which is needed to be deleted by the first auxiliary node is determined, and sixth difference data which is needed to be deleted is determined from each second node data; or alternatively, the first and second heat exchangers may be,
Responding to the data synchronization request, synchronously accessing first data of the main node and second data of each auxiliary node at the second synchronization moment through a target interface, comparing the first data with the second data, and determining difference data of the main node and each auxiliary node according to a comparison result;
and carrying out synchronous processing on the difference data, and displaying synchronous state data through a third interface.
2. The data synchronization method of claim 1, wherein the step of comparing the first data with each of the second data and determining difference data between the primary node and each of the secondary nodes based on the comparison result comprises:
comparing the first data with each second data respectively;
and according to the comparison result, respectively determining first difference data which need to be added or modified by each auxiliary node from the first data, and respectively determining second difference data which need to be deleted by each auxiliary node from the second data.
3. The data synchronization method according to claim 2, wherein the step of performing synchronization processing on the difference data includes:
deleting corresponding second difference data from each secondary node;
And synchronizing the first difference data corresponding to each secondary node from the primary node to each secondary node.
4. The data synchronization method according to claim 1, wherein the step of performing synchronization processing on the difference data comprises:
deleting corresponding fifth difference data from the first secondary node in a first synchronization period, and synchronizing the third difference data from the primary node to the first secondary node;
and deleting corresponding sixth difference data from each second auxiliary node in a second synchronization period, and synchronizing each fourth difference data from the first auxiliary node to each second auxiliary node respectively, wherein the second synchronization period is positioned after the first synchronization period.
5. The data synchronization method according to claim 1, wherein the step of performing synchronization processing on the difference data comprises:
displaying the difference data through a fourth interface;
receiving a verification passing operation of the difference data through the fourth interface;
and responding to the verification passing operation, and synchronously processing the difference data.
6. The data synchronization method according to claim 1, wherein the step of performing synchronization processing on the difference data comprises:
Checking the difference data according to preset checking conditions;
when the verification is passed, the difference data are synchronously processed;
and when the verification is not passed, displaying the data which is not passed in the difference data through a fourth interface.
7. The data synchronization method according to claim 1, further comprising, after the step of synchronizing the difference data:
monitoring the running state of the master node;
if the operation state is abnormal, determining a second target auxiliary node from all auxiliary nodes according to the operation data of each auxiliary node;
when the running state is a first abnormal state, switching the second target auxiliary node to a new main node;
and when the running state is in a second abnormal state, synchronizing second data of the second target auxiliary node to the main node.
8. A data synchronization device, comprising:
the first receiving module is used for receiving the access information configuration operation of the main node and the at least two auxiliary nodes through a first interface;
the acquisition module is used for responding to the access information configuration operation and acquiring synchronous access rights of the main node and the at least two auxiliary nodes;
The second receiving module is used for receiving a data synchronization request from the main node to the at least two auxiliary nodes through a second interface;
the determining module is used for responding to the data synchronization request, synchronously accessing first data of the main node and second data of each auxiliary node at a second synchronization moment through a target interface, comparing the first data with the second data, and determining difference data of the main node and each auxiliary node according to a comparison result; or, the at least two auxiliary nodes comprise a first auxiliary node and at least one second auxiliary node, and the first node data in the first auxiliary node and the second node data of each second auxiliary node are compared at any time between the first synchronization time and the second synchronization time; determining first type difference data between the first auxiliary node and each second auxiliary node according to the comparison result; the second synchronization time is a time after the first synchronization time; comparing the first data in the master node with the second node data in the first slave node at the second synchronization moment; determining second class difference data between the main node and the first auxiliary node according to the comparison result; according to the first type of difference data and the second type of difference data, third difference data which is needed to be added or modified by the first auxiliary node is determined from the first data, fourth difference data which is needed to be added or modified by each second auxiliary node is determined from the first node data, fifth difference data which is needed to be deleted by the first auxiliary node is determined, and sixth difference data which is needed to be deleted is determined from each second node data;
And the synchronization module is used for carrying out synchronization processing on the difference data and displaying the synchronization state data through a third interface.
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