CN118568108B - A method for scheduling centralized data update and disaster recovery based on light memory - Google Patents
A method for scheduling centralized data update and disaster recovery based on light memoryInfo
- Publication number
- CN118568108B CN118568108B CN202410662698.7A CN202410662698A CN118568108B CN 118568108 B CN118568108 B CN 118568108B CN 202410662698 A CN202410662698 A CN 202410662698A CN 118568108 B CN118568108 B CN 118568108B
- Authority
- CN
- China
- Prior art keywords
- data
- dispatching
- centralized
- application program
- database
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/23—Updating
- G06F16/2365—Ensuring data consistency and integrity
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/22—Indexing; Data structures therefor; Storage structures
- G06F16/2282—Tablespace storage structures; Management thereof
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Databases & Information Systems (AREA)
- Physics & Mathematics (AREA)
- Data Mining & Analysis (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computing Systems (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Software Systems (AREA)
- Computer Security & Cryptography (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
本发明公开了一种基于轻型存储器的调度集中数据更新和容灾方法，在现有数据传输方式的基础上引入轻型存储器，解决当前方法存在的数据一致性、数据访问效率和安全性问题，具体来说：构建数据传输模型，确保读取和写入操作不会同时发生，防止出现数据一致性问题，保证调度集中数据准确性；同时，能够显著提高调度集中数据的访问效率，从而提升调度集中系统程序整体性能。
The present invention discloses a method for updating and disaster recovery of scheduling centralized data based on lightweight memory. Lightweight memory is introduced on the basis of existing data transmission methods to solve the data consistency, data access efficiency and security problems existing in the current methods. Specifically: a data transmission model is constructed to ensure that read and write operations do not occur at the same time, prevent data consistency problems, and ensure the accuracy of scheduling centralized data; at the same time, it can significantly improve the access efficiency of scheduling centralized data, thereby improving the overall performance of the scheduling centralized system program.
Description
Technical Field
The invention relates to the technical field of data updating and disaster recovery of dispatching concentrated data, in particular to a dispatching concentrated data updating and disaster recovery method based on a light memory.
Background
The dispatching centralized system is a train dispatching command system which comprehensively utilizes network communication technology, computer technology and modern control technology, centers on train operation plan control and has high automation characteristic. The centralized dispatching data records all state information and command information of the train in the jurisdiction section of the dispatching command system, and plays an important role in supporting data for train dispatchers to grasp the situation of the dispatching section, change the running plan of the train and optimize and improve the line passing capacity. The data in the dispatching set is divided into static data (such as text templates, running chart base graphs, station configuration, stock track configuration and the like) loaded when the program is started and dynamic data (such as command text contents, command signing states, construction registration information, real-time running lines, construction marks and the like) accessed when the program is run. The data in the dispatching set contains a large number of data items of dispatching command business, and the data items have the characteristics of large scale and complex association relationship (such as the dependence relationship between real operation line nodes and station configuration, the dependence relationship between command text content and text templates, the dependence relationship between construction marks and operation map base graphs, and the like) in common.
The dispatching concentrated data is loaded in an application program cache by a dispatching concentrated system program, and the application program cache can be loaded and modified through a human-computer interface terminal, can be stored in a database through remote connection, and can be stored locally through a data file. Existing data update methods store the data in the scheduling set by text files or XML files. And when the remote connection of the database is normal, the dispatching centralized system program performs data backup through a data updating method. The database remote connection may be disconnected due to network congestion, server failure, or third party software. If the remote connection is disconnected, the dispatching centralized system program accesses the local data file to acquire data, so that the application program can be ensured to run correctly according to the design expectation. If the remote connection is restored, the dispatch centralized system program updates the local data modified during the interruption of the remote connection to the database by a data disaster recovery method. A transmission model of data in a scheduling set is shown in fig. 1.
The prior art allows the dispatch centralized system program to directly connect to the application cache and connect to the database and local data files by remote connection and local access, but when the network is blocked, the server fails or is affected by third party software, the problems and disadvantages of the prior art are as follows:
(1) The problem of data consistency is that when the data in the dispatching concentration uses a file storage mode, when the dispatching concentration system program simultaneously reads and writes a file, the problem of data inconsistency can be caused.
(2) The data access efficiency is low, when the file storage mode is used for dispatching the centralized data, the data is read and written by manually writing codes, the operation is complex, and the efficiency is low. For large-scale data and complex query requirements, file storage does not provide efficient data access.
Disclosure of Invention
The invention aims to provide a dispatching centralized data updating and disaster recovery method based on a light memory, which can solve the problems of data consistency and data access efficiency existing in the current method.
The invention aims at realizing the following technical scheme:
a method for updating and disaster recovery of dispatching concentrated data based on a light memory comprises the following steps:
Constructing a dispatching concentrated data transmission model based on a light memory, wherein the dispatching concentrated data transmission model comprises a database for storing dispatching concentrated data, an application program cache and the light memory, and a human-computer interface terminal of a dispatching concentrated system program is directly connected with the application program cache, and the application program cache is remotely connected with the database and is connected with the light memory in a local access way;
When the remote connection is normal, the dispatching centralized system program combines the data operation state of the human-computer interface terminal and the configured data type number to control the transmission flow of the dispatching centralized data of the corresponding category in the database, the application program cache and the light memory to realize data updating;
When the remote connection is disconnected, the dispatching centralized system program combines the data operation state of the human-computer interface terminal and the configured data type number to control the transmission flow of the dispatching centralized data of the corresponding category in the application program cache and the light memory to realize data updating;
When the remote connection is interrupted and normal is restored, a data disaster recovery method is triggered, and the dispatching centralized system program combines the data operation state of the human-computer interface terminal and the configured data type number to control the transmission flow of the dispatching centralized data of the corresponding category stored in the remote connection interruption period in a database, an application program cache and a light memory to realize the data disaster recovery.
The technical scheme provided by the invention can be used for constructing a data transmission model, ensuring that reading and writing operations do not occur simultaneously, preventing the problem of data consistency, ensuring the accuracy of the data in the dispatching set, and obviously improving the access efficiency of the data in the dispatching set, thereby improving the overall performance of the program in the dispatching set.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a conventional dispatch-centralized data transmission model provided in the background of the invention;
FIG. 2 is a flow chart of a method for updating and disaster recovery in dispatch set based on a lightweight storage according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a light memory-based dispatch centralized data transfer model according to an embodiment of the present invention;
fig. 4 is a schematic diagram of data type numbers according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
The terms that may be used herein will first be described as follows:
The terms "comprises," "comprising," "includes," "including," "has," "having" or other similar referents are to be construed to cover a non-exclusive inclusion. For example, inclusion of a feature (e.g., a starting material, component, ingredient, carrier, dosage form, material, size, part, component, mechanism, apparatus, step, procedure, method, reaction condition, processing condition, parameter, algorithm, signal, data, product or article of manufacture, etc.) should be construed as including not only the feature explicitly recited, but also other features known in the art that are not explicitly recited.
The term "consisting of" means excluding any technical feature elements not explicitly listed. If such term is used in a claim, the term will cause the claim to be closed, such that it does not include technical features other than those specifically listed, except for conventional impurities associated therewith. If the term is intended to appear in only a clause of a claim, it is intended to limit only the elements explicitly recited in that clause, and the elements recited in other clauses are not excluded from the overall claim.
The invention provides a dispatching centralized data updating and disaster recovery method based on a light memory. What is not described in detail in the embodiments of the present invention belongs to the prior art known to those skilled in the art. The specific conditions are not noted in the examples of the present invention and are carried out according to the conditions conventional in the art or suggested by the manufacturer.
As shown in fig. 1, a flowchart of a method for updating and disaster recovery of dispatching centralized data based on a light memory according to an embodiment of the present invention mainly includes the following steps:
and 1, constructing a dispatching concentrated data transmission model based on a light memory.
In the embodiment of the invention, a dispatching concentrated data transmission model (called dispatching concentrated data transmission model for short) based on a light memory is constructed as shown in fig. 3, wherein the dispatching concentrated data transmission model comprises a database for storing dispatching concentrated data, an application program cache and the light memory, a man-machine interface terminal of a dispatching concentrated system program is directly connected with the application program cache, the application program cache is remotely connected with the database, and a local access connection is established with the light memory, and for each type of dispatching concentrated data, the corresponding data type numbers are configured for the database, the application program cache and the light memory.
In the embodiment of the invention, the light memory belongs to a general technical term in the field, and is characterized by a data storage mode with a database, stored data is reserved in a computer hard disk in a file form, and the occupied storage space is obviously reduced compared with the traditional database.
In the implementation of the embodiment of the invention, the dispatching centralized data comprises four major types of static data, external data, table structure data and dynamic data, wherein the static data is data loaded when a dispatching centralized system program is started, the dynamic data is data accessed when the dispatching centralized system program is operated, the table structure data is information for describing a table structure of a database, and the external data refers to data which is stored in the database and is written and updated by other users.
The data type numbers of static data, external data and table structure data are the same, namely the database, the application program cache and the light memory in sequence from small to large, and the data type numbers of dynamic data are the application program cache, the light memory and the database in sequence from small to large.
And 2, when the remote connection is normal or disconnected, accurately controlling the flow direction of data transmission according to a preset updating rule, realizing data updating, and ensuring the integrity and accuracy of the data in the transmission process.
In this step, the data updating modes performed in the case of normal remote connection and disconnection are different, and are described below.
(1) When the remote connection is normal, the dispatching centralized system program combines the data operation state of the human-computer interface terminal and the configured data type number to control the transmission flow of the dispatching centralized data of the corresponding category in the database, the application program cache and the light memory to realize data updating.
In this case, the data operation state of the human-machine interface terminal includes that the human-machine interface terminal reloads the data in the scheduling set, the human-machine interface terminal performs the operation of writing the data, and the human-machine interface terminal performs the operation of reading the data. The following describes the data updating modes corresponding to the above three data operation states.
And (1.1) if the data operation state of the man-machine interface terminal is that the man-machine interface terminal reloads the dispatching concentrated data, the data updating relates to the dispatching concentrated data types including structural data, static data, external data and dynamic data, the dispatching concentrated system program acquires the table structural data, the static data, the external data and the dynamic data from the database in sequence, and the dispatching concentrated data of each type is firstly transmitted to an application program cache and then transmitted to a light memory by the application program cache.
And (1.2) if the data operation state of the man-machine interface terminal is that the man-machine interface terminal executes the data writing operation, the dispatching concentrated data type related to the data updating comprises dynamic data, and the dispatching concentrated system program acquires the dynamic data from the application program cache, firstly transmits the dynamic data to the database and then transmits the dynamic data to the light memory.
And (1.3) if the data operation state of the man-machine interface terminal is that the man-machine interface terminal executes the data reading operation, the scheduling centralized data category related to the data updating comprises external data and dynamic data, the scheduling centralized system program acquires the external data from the database and transmits the external data to the application program cache and then transmits the external data to the light memory through the application program cache, and then the scheduling centralized system program acquires the dynamic data from the database and transmits the dynamic data to the application program cache and then transmits the dynamic data to the light memory through the application program cache.
(2) When the remote connection is disconnected, the dispatching centralized system program combines the data operation state of the human-computer interface terminal and the configured data type number to control the transmission flow of the dispatching centralized data of the corresponding category in the application program cache and the light memory to realize data updating.
In this case, the data operation state of the human-machine interface terminal includes that the human-machine interface terminal reloads the data in the scheduling set, the human-machine interface terminal performs the operation of writing the data, and the human-machine interface terminal performs the operation of reading the data. The following describes the data updating modes corresponding to the above three data operation states.
And (2.1) if the data operation state of the man-machine interface terminal is that the man-machine interface terminal reloads the dispatching concentrated data, the dispatching concentrated data related to the data update comprises static data, external data and dynamic data, and the dispatching concentrated system program sequentially acquires the static data, the external data and the dynamic data from the light memory and sequentially transmits the static data, the external data and the dynamic data to the application program cache.
And (2.2) if the data operation state of the man-machine interface terminal is that the man-machine interface terminal executes the data writing operation, the dispatch centralized data category related to the data updating comprises dynamic data, and the dispatch centralized system program acquires the dynamic data from the application program cache and then transmits the dynamic data to the light memory.
And (2.3) if the data operation state of the man-machine interface terminal is that the man-machine interface terminal executes the data reading operation, the scheduling centralized data type related to the data updating comprises external data and dynamic data, and the scheduling centralized system program acquires the external data and the dynamic data from the light memory in sequence and sequentially transmits the external data and the dynamic data to the application program cache.
And step3, when the remote connection is recovered to be normal after being interrupted, starting a data disaster recovery scheme.
In the embodiment of the invention, when the remote connection is interrupted and returns to normal, a data disaster recovery method is triggered, and the dispatching centralized system program combines the data operation state of the human-computer interface terminal and the configured data type number to control the transmission flow of the dispatching centralized data of the corresponding category stored in the remote connection interruption period in the database, the application program cache and the light memory to realize the data disaster recovery.
In this case, the data operation state of the human-machine interface terminal includes the human-machine interface terminal performing the operation of writing data and the human-machine interface terminal performing the operation of reading data. The following describes the data disaster recovery mode corresponding to the two data operation states.
And (3.1) if the data operation state of the man-machine interface terminal is that the man-machine interface terminal executes the data writing operation, the dispatch centralized data category related to the data disaster tolerance comprises dynamic data, and the dispatch centralized system program acquires the dynamic data stored in the remote connection interruption period from the light memory, and transmits the dynamic data to the application program cache firstly and then to the database by the application program cache.
(3.2) If the data operation state of the man-machine interface terminal is that the man-machine interface terminal executes the data reading operation, the dispatch centralized data category related to the data disaster tolerance comprises external data;
The dispatching centralized system program obtains the external data stored in the remote connection interruption period from the database, firstly transmits the external data to the application program cache, and then transmits the external data to the light-weight memory through the application program cache.
In order to more clearly demonstrate the technical scheme and the technical effects provided by the invention, the method provided by the embodiment of the invention is described in detail below by using specific embodiments.
1. A data transmission model is scheduled and centralized.
The invention provides a dispatching concentrated data transmission model based on a light memory, which is based on the existing dispatching concentrated data transmission model, as shown in figure 3, and replaces a local data file in the existing dispatching concentrated data transmission model with the light memory. The light memory is characterized by a data storage mode with a database, stored data is reserved in a computer hard disk in a file form, and the occupied storage space is obviously reduced compared with the traditional database. The light memory is a lightweight database, provides complete data storage, data persistence and data sharing functions, and data management complies with the principles of atomicity, consistency, isolation and persistence, so that the integrity and accuracy of database transactions can be ensured.
In addition, the data transmission model in the dispatching set provided by the invention is also used for adding the data transmission contents of external data and table structure data on the basis of the existing data transmission model in the dispatching set. External data refers to data stored in a database and written and updated by other users, and for the current user, only read operations can be performed on these external data, but not write or update operations. Such external data may come from different information systems or different data sources, which are not directly modifiable to the current user. The table structure data is information describing the table structure of the database, and includes the field name, data type, constraint and other attributes of the table, and in order to ensure the validity of data transmission, the light memory needs to be consistent with the definition of the table of the database, so that the table structure data needs to be acquired from the database to ensure the accuracy of the data in the transmission process.
In the embodiment of the invention, the symbol definition of the data transmission model in the dispatching set is shown in table 1 according to the difference of data sources and data types.
TABLE 1 symbol definition of data Transmission model
The table A, B, C, D in table 1 corresponds to static data, external data, table structure data, and dynamic data. Since the data in the scheduling set is stored in the database, the application program cache and the local database at the same time, in order to ensure the reliability of data update, data type numbers need to be defined for data of different sources and types. The numbers following the symbols in table 1 represent the data type numbers. Fig. 4 shows a specific data type number definition.
The light memory is used as a database backup mechanism in the invention, and can ensure that the man-machine interface terminal operates correctly according to design expectations when the database fails. The data type numbers of the static data, the external data and the table structure data are a database, an application program cache and a light memory in sequence. The dynamic data needs to be frequently accessed and read, the dynamic data is preferably updated in the light memory, and then the updating is synchronized into the database, so that the data access performance can be improved, the database load can be reduced, and the data type numbers of the dynamic data are sequentially an application program cache, the light memory and the database.
In the embodiment of the invention, the application scene of adding the data operation of the man-machine interface terminal on the basis of considering the existing remote connection state is shown in the table 2.
TABLE 2 application scenarios for remote connection and human-machine interface
In the embodiment of the invention, the remote connection of the dispatching centralized data transmission model is divided into 3 application scenes of disconnection, normal and recovery. And the man-machine interface terminal reloads static data, external data, table structure data and dynamic data when starting after the corresponding dispatching centralized system program is abnormally closed or switching every day. And the operation of writing data into the man-machine interface terminal to store the text content and the running chart information displayed by the interface into the database and the light memory by the corresponding dispatching centralized system program. And the man-machine interface terminal reads the operation of the corresponding dispatching centralized system program of the data, takes the database or the light memory as a data source, and refreshes the text content and the running chart information displayed on the interface. The application scenarios of the remote connection and the human-machine interface can be combined with each other to form a synchronous scenario of the data transmission model in the dispatch set as shown in table 3.
TABLE 3 synchronization scenario for a data Transmission model in a scheduling set
In the synchronous scenario of the data transmission model shown in table 3, the data updating method accurately controls the flow direction of data transmission according to preset updating rules when the remote connection is normal and when the remote connection is disconnected, so as to ensure the integrity and accuracy of the data in the transmission process. The data disaster recovery method is started when the remote connection is interrupted for some reason and then returns to normal. The data disaster recovery method follows a specific disaster recovery rule, aims to effectively recover the dispatching concentrated data possibly lost during the disconnection of the remote connection, and ensures the continuity and stability of dispatching command business when a dispatching concentrated system program faces data transmission problems. Because of the ubiquitous dependency between the schedule command business data items, the schedule centralized system program does not process static data, external data, table structure data and dynamic data at the same time, but processes data according to the sequence of the table structure data, the static data, the external data and the dynamic data. In the synchronous scene, the sequence of data transmission is consistent with the sequence of data processing by the system program in the dispatching set.
2. The data transmission stream in the synchronization scenario is introduced.
In the embodiment of the present invention, the data transmission flows of the 8 synchronization scenarios shown in the foregoing table 3 are respectively described.
1. The data transmission stream of scene 1 is synchronized.
When the remote connection is interrupted, the connection between the dispatching centralized system program and the database is disconnected, and the data transmission flow when the dispatching centralized system program calls the data updating method to reload data is shown in the formula (1). In the formula (1), (1) and (4) represent a synchronization scenario 1, in which the sequence of the execution of data transmission by the system program in the dispatch collection is static data, external data and dynamic data.
(1)(4){(A3,A2),(B3,B2),(D2,D1)}(1)
When the system program in the dispatching concentration reloads data during the connection interruption, static data and external data are obtained from the light-type memory and dumped to the application program cache, so that the dispatching concentration data can still be accessed under the condition that remote connection is unavailable, and the process corresponds to (A3, A2) and (B3, B2) in the formula (1) respectively. Because the connection with the database cannot be established, the dynamic data cannot be directly updated into the database, the dispatching centralized system program transfers the dynamic data from the light memory to the application program cache, the dynamic data is retransmitted and stored into the database after the remote connection is recovered, and the process corresponds to (D2 and D1) in the formula (1).
In the data transmission flow formula of each synchronous scene, two symbols in brackets represent that corresponding data is transmitted from a left term to a right term, and (A3, A2) is taken as an example to represent that static data in a light memory is transmitted to an application program cache.
2. The data transmission stream of scene 2 is synchronized.
When the remote connection is normal, the connection between the dispatching centralized system program and the database is available, and the data transmission flow when the dispatching centralized system program calls the data updating method to reload the data is shown in the formula (2). In the formula (2), (2) and (4), the synchronization scenario 2 is represented, and the sequence of the execution of data transmission by the system program in the dispatching and concentrating system in the scenario is table structure data, static data, external data and dynamic data.
(2)(4){(C1,C2),(C2,C3),(A1,A2),(A2,A3),(B1,B2),(B2,B3),(D3,D1),(D1,D2))(2)
When the dispatch centralized system program reloads data during normal connection, table structure data, static data and external data are acquired from the database, and are firstly loaded into an application program cache and then stored into a light memory for backup, wherein the process corresponds to (C1, C2), (C2, C3), (A1, A2), (A2, A3) and (B1, B2), (B2, B3) in the formula (2) respectively. Under the normal condition of remote connection, the dispatching centralized system program acquires dynamic data from the database and transmits the dynamic data to the application program cache. The dynamic data is then further stored in a lightweight memory as backup data in case of a remote connection interruption, which process corresponds to (D3, D1), (D1, D2) in equation (2).
3. The data transmission stream of scene 3 is synchronized.
When the remote connection is interrupted, the connection between the dispatching centralized system program and the database is disconnected, and the data transmission flow when the dispatching centralized system program calls the data updating method to execute the data writing operation is shown in a formula (3). In the formula (3), (1) and (5), a synchronization scenario 3 is represented, in which only dynamic data is used for scheduling the data transmission performed by the centralized system program.
(1)(5){(D1,D2)}(3)
Because the connection with the database cannot be established, the dynamic data cannot be directly updated into the database, the dispatching centralized system program transfers the dynamic data from the application program cache to the light memory for storage, the dynamic data is retransmitted and stored in the database after the remote connection is recovered, and the process corresponds to (D1 and D2) in the formula (3).
4. The data transmission stream of scene 4 is synchronized.
When the remote connection is normal, the connection between the dispatching centralized system program and the database is available, and the data transmission flow when the dispatching centralized system program calls the data updating method to execute the data writing operation is shown in the formula (4). In the formula (4), (2) and (5), the synchronization scenario 4 is represented, in which only dynamic data is used to schedule the data transmission by the centralized system program.
(2)(5){(D1,D3),(D1,D2)}(4)
Under the normal condition of remote connection, the dispatching centralized system program obtains dynamic data from the application program cache and transmits the dynamic data to the database. The dynamic data is then further stored in a lightweight memory as backup data in case of a remote connection interruption, which process corresponds to (D1, D3), (D1, D2) in equation (4).
5. The data transmission stream of scene 5 is synchronized.
When the remote connection is re-established and normal is restored, the dispatching centralized system program automatically triggers a data disaster recovery method to retransmit and store the data which is not successfully written into the database before because of connection interruption. The flow of data transfer when the dispatch collection system program writes non-repository data to the database is shown in equation (5). In the formula (5), (3) and (5) represent a synchronization scenario 5 in which only dynamic data is used for scheduling the data transmission by the centralized system program.
(3)(5){(D2,D1),(D1,D3)}(5)
When the remote connection is restored, the dispatch centralized system program retrieves the dynamic data stored during the connection interruption from the lightweight memory and transfers it to the application cache. The dynamic data is then reloaded and transferred back to the database for persistent storage, which corresponds to (D2, D1), (D1, D3) in equation (5).
6. The data transmission stream of scene 6 is synchronized.
When the remote connection is interrupted, the connection between the dispatching centralized system program and the database is disconnected, and the data transmission flow when the dispatching centralized system program calls the data updating method to execute the data reading operation is shown in a formula (6). In the formula (6), (1) and (6) represent a synchronization scenario 6 in which the sequence of the execution of data transmission by the system program in the dispatch collection is external data and dynamic data.
(1)(6){(B3,B2),(D2,D1)}(6)
In the case of remote connection disconnection, the dispatch centralized system program acquires the external data and dynamic data stored before from the light memory and transmits them to the application program cache, ensuring that the program can still read the dispatch centralized data normally in the case of remote connection disconnection, which corresponds to (B3, B2), (D2, D1) in equation (6).
7. The data transmission stream of scene 7 is synchronized.
When the remote connection is normal, the connection between the dispatching centralized system program and the database is available, and the data transmission flow when the dispatching centralized system program calls the data updating method to execute the data reading operation is shown in the formula (7). In the formula (7), (2) and (6) represent a synchronization scenario 7 in which the sequence of the execution of data transmission by the system program in the dispatch collection is external data and dynamic data.
(2)(6){(B1,B2),(B2,B3),(D3,D1),(D1,D2)}(7)
Under the normal condition of remote connection, the dispatching centralized system program acquires external data from the database and transmits the external data to the application program cache. These data are then stored in a lightweight memory as backup data at the time of remote connection interruption, which process corresponds to (B1, B2), (B2, B3) in equation (7). The dispatch centralized system program then retrieves the dynamic data from the database and transmits it to the application cache, which is then stored in lightweight memory as backup data at the time of remote connection interruption, which corresponds to (D3, D1), (D1, D2) in equation (7).
8. The data transmission stream of scene 8 is synchronized.
When the remote connection is re-established and normal is restored, the dispatching centralized system program automatically triggers a data disaster recovery method to retransmit and read the data which is not successfully updated before due to connection interruption. The flow of data transmission when the dispatch collection system program reads external data to the application cache is as shown in formula (8). In the formula (8), (3) and (6) represent a synchronization scenario 8 in which only external data is used for scheduling the centralized system program to perform data transmission.
(3)(6){(B1,B2),(B2,B3)}(8)
When the remote connection is restored, the dispatching centralized system program acquires the external data updated during the connection interruption from the database and transmits the external data to the application program cache so as to be timely processed by the application program. The external data is then rearranged and transferred to a lightweight memory for backup. This procedure corresponds to (B1, B2), (B2, B3) in formula (8).
3. An example is illustrated.
In order to further describe the above scheme of the present invention, taking a transmission process of scheduling command data (which is a specific scheduling centralized data) in a scheduling centralized system program as an example, the working mode of the scheduling centralized data updating and disaster recovery method can be shown as 8 specific application cases shown in table 4.
TABLE 4 application case of data update and disaster recovery method
According to the dispatching command business requirement, the dispatching centralized system program loads a text template or a construction command to a human-computer interface terminal for display, the user complements the dispatching command content at the blank of the text template, and the command text is stored after editing is completed. In the transmission process of the dispatching command data, the text template belongs to static data, the construction command belongs to external data, the attributes such as field names, data types, constraints and the like of the text template table and the construction command table in the database belong to table structure data, and the command text belongs to dynamic data.
In the application program cache, the text template, the command body and the construction command are respectively stored in different data structures. In the database and the light memory, the text template, the command text and the construction command are respectively stored in a text template table, a command text table and a construction command table, and the table structures of the data tables in the database and the light memory are consistent.
1. The scheduling command data is loaded offline.
When the shift-over operation is carried out or the error-reporting and the restarting is carried out under the condition of remote connection disconnection, the dispatching centralized system program calls a data updating method to execute the offline loading dispatching command data operation according to the data transmission flow direction in the synchronous scene 1. The scheduling command data loaded offline comprise a text template table, a command text table and a construction command table, and the data transmitted do not contain table structure data because the scheduling command data can not be connected to a database under the condition of remote connection and disconnection. The scheduling command data is loaded according to the sequence of the formula (1), and the specific steps are as follows:
(1.1) the dispatch centralized system program obtains the text template table from the lightweight memory and then transmits it to the application program cache. The system program in the dispatching set calls a text template table in the application program cache, and a text template is called at the man-machine interface.
(1.2) The dispatch centralized system program obtains the construction command list from the light memory and then transmits the construction command list to the application program cache. And the system program in the dispatching set calls a construction command table in the application program cache, and the construction commands of other data sources are displayed on the human-computer interface.
(1.3) The dispatch centralized system program obtains the command text table from the lightweight memory and then transfers it to the application cache. The system program in the dispatching set calls a command text table in the application program cache, and calls command text of the current shift and the historical shift in the human-computer interface.
2. The scheduling command data is loaded online.
When the remote connection is normally performed with shift-over operation or error-report-out restarting, the dispatching centralized system program calls a data updating method to execute the operation of loading dispatching command data on line according to the data transmission flow direction in the synchronous scene 2. The scheduling command data loaded on line comprises table structure data of a text template table, table structure data of a construction command table, a text template table, a command text table and a construction command table. The scheduling command data is loaded according to the sequence of the formula (2), and the specific steps are as follows:
and (2.1) the dispatching centralized system program acquires the table structure data of the text template table and the table structure data of the construction command table from the database and transmits the data to the application program cache. And (3) updating the table structures of the text template table and the construction command table in the light memory by the dispatching centralized system program through loading the table structure data in the application program cache, so that the table structures are consistent with the text template table and the construction command table in the database.
(2.2) The dispatch centralized system program obtains the text template table from the database and transmits it to the application cache. The text template table data is further transferred to a lightweight memory as backup data to enable the dispatch centralized system program to invoke the text template in the event of a remote connection interruption.
(2.3) The dispatch centralized system program obtains the construction command table from the database and transmits it to the application program cache. The construction order table data is further transmitted to the light memory as backup data, so that the dispatching centralized system program can display the construction orders of other data sources under the condition of remote connection interruption.
(2.4) The dispatch collection system program obtains the command text table from the database and transfers it to the application cache. The command text table is further transferred to the lightweight memory as backup data to enable the dispatch centralized system program to invoke the command text of the current shift and the historical shift in the event of a remote connection interruption.
3. The command body is stored offline.
When the command text is cached through the human-computer interface under the condition of remote connection disconnection, the dispatching centralized system program calls a data updating method to execute the operation of offline storage of the command text according to the data transmission flow direction in the synchronous scene 3. The offline stored command text is loaded into a command text table of the light memory, and the command text is loaded according to the sequence of the formula (3), and the specific steps are as follows:
After the dispatching centralized system program confirms and stores the command text, the dynamic data cannot be directly updated into the database because connection cannot be established with the database, the command text is transmitted from the application program cache into a command text table of the light memory as backup data, and the command text of the current shift and the historical shift is retransmitted and stored into the database after the remote connection is recovered.
4. The command body is stored online.
When the remote connection is in normal condition and the command text is cached through the human-computer interface, the dispatching centralized system program calls a data updating method to execute the operation of storing the command text on line according to the data transmission flow direction in the synchronous scene 4. The command text stored on line is respectively loaded into a database and a command text table of a light memory, and the command text is loaded according to the sequence of a formula (4), and the specific steps are as follows:
and (4.1) after the system program in the dispatching set confirms and stores the command text, the command text is transmitted from the application program cache to a command text table of the database, and the command text of the current shift or the historical shift is subjected to persistence storage.
And (4.2) after the dispatching centralized system program confirms and stores the command text, the command text is transmitted from the application program cache to a command text table of the light memory to serve as backup data, so that the dispatching centralized system program can call the command text of the current shift and the historical shift under the condition of remote connection interruption.
5. And restoring the on-line storage command text.
After the remote connection is recovered to be normal, the dispatching centralized system program can automatically trigger a data disaster recovery method to retransmit and store the command text which is not successfully written into the database due to connection interruption. And maintaining the data consistency of the command text in a database, an application program cache and a light memory. And the dispatching centralized system program calls a data disaster recovery method to execute the operation of storing the command text after restoring on line according to the data transmission flow direction in the synchronous scene 5. After the on-line state is restored, the command text is loaded into a database command text table, and the command text is loaded according to the sequence of a formula (5), and the specific steps are as follows:
(5.1) after the dispatch-centralized system program resumes with the remote connection, the dispatch-centralized system program obtains the command text stored during the connection interruption from the lightweight memory.
And (5.2) the dispatching centralized system program reloads the command text in the application program cache and transmits the reload to a command text table of the database, and the command text of the current shift or the historical shift is stored in a lasting mode.
6. The scheduling command data is read offline.
And when refreshing the construction command and the command text displayed on the man-machine interface under the condition of remote connection and disconnection, the dispatching centralized system program calls a data updating method to execute the operation of offline reading dispatching command data according to the data transmission flow in the synchronous scene 6. The offline read scheduling command data comprises a command text table and a construction command table. The command text table and the construction command table are loaded into the application program cache from the light memory, and the command text is loaded according to the sequence of the formula (6), and the specific steps are as follows:
and (6.1) after the program of the dispatching centralized system confirms the read construction command, the construction command is transmitted to an application program cache from the light memory, so that the program can display the construction commands of other data sources under the condition of remote connection disconnection.
And (6.2) after the dispatching centralized system program confirms the read command text, the command text is transmitted to an application program cache from the light memory, so that the program can normally read the command text of the current shift and the historical shift under the condition of remote connection disconnection.
7. The scheduling command data is read online.
When the construction command and the command text displayed on the man-machine interface are refreshed under the normal condition of remote connection, the dispatching centralized system program calls a data updating method to execute the operation of reading the dispatching command data on line according to the data transmission flow direction in the synchronous scene 7. The scheduling command data read on line comprises a command text table and a construction command table. After the command text table and the construction command table are loaded from the database to the application program cache, the application program cache is loaded into the light memory, and the command text is loaded according to the sequence of the formula (7), and the specific steps are as follows:
And (7.1) after the system program in the dispatching set confirms the read construction command, acquiring the construction command from the database and transmitting the construction command to the application program cache. These data are then stored in a lightweight memory as backup data in the event of a remote connection interruption, enabling the dispatch centralized system program to display construction commands for other data sources in the event of a remote connection interruption.
And (7.2) after the dispatching centralized system program confirms the read command text, acquiring the command text from the database and transmitting the command text to the application program cache. These data are then stored in the lightweight memory as backup data in the event of a remote connection interruption, enabling the dispatch centralized system program to call the command text of the current shift and the historical shift in the event of a remote connection interruption.
8. And reading the construction command after the on-line recovery.
After the remote connection is recovered to be normal, the scheduling command system program can automatically trigger a data disaster recovery method to retransmit and read the data which is not successfully updated before due to the connection interruption. And maintaining the data consistency of the construction command in a database, an application program cache and a light memory. And the dispatching centralized system program calls a data disaster recovery method to execute the operation of reading the construction command after the on-line recovery according to the data transmission flow direction in the synchronous scene 8. After the on-line recovery, the construction command is loaded into the application program cache by the database, and the construction command is loaded according to the sequence of the formula (8), and the specific steps are as follows:
(8.1) after the dispatch centralized system program resumes with the remote connection, the dispatch centralized system program obtains the construction command updated during the connection interruption from the database. From the database into the application cache.
And (8.2) reloading the construction commands in the application program cache by the dispatching concentrated system program and transmitting the reloaded construction commands to the light memory for backup, so that the dispatching concentrated system program can display the construction commands of other data sources under the condition of remote connection interruption.
From the description of the above embodiments, it will be apparent to those skilled in the art that the above embodiments may be implemented in software, or may be implemented by means of software plus a necessary general hardware platform. With such understanding, the technical solutions of the foregoing embodiments may be embodied in a software product, where the software product may be stored in a nonvolatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.), and include several instructions for causing a computer device (may be a personal computer, a server, or a network device, etc.) to perform the methods of the embodiments of the present invention.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (10)
1. A method for updating and disaster recovery of data in a dispatch set based on a lightweight memory, comprising:
Constructing a dispatching concentrated data transmission model based on a light memory, wherein the dispatching concentrated data transmission model comprises a database for storing dispatching concentrated data, an application program cache and the light memory, and a human-computer interface terminal of a dispatching concentrated system program is directly connected with the application program cache, and the application program cache is remotely connected with the database and is connected with the light memory in a local access way;
When the remote connection is normal, the dispatching centralized system program combines the data operation state of the human-computer interface terminal and the configured data type number to control the transmission flow of the dispatching centralized data of the corresponding category in the database, the application program cache and the light memory to realize data updating;
When the remote connection is disconnected, the dispatching centralized system program combines the data operation state of the human-computer interface terminal and the configured data type number to control the transmission flow of the dispatching centralized data of the corresponding category in the application program cache and the light memory to realize data updating;
When the remote connection is interrupted and normal is restored, a data disaster recovery method is triggered, and the dispatching centralized system program combines the data operation state of the human-computer interface terminal and the configured data type number to control the transmission flow of the dispatching centralized data of the corresponding category stored in the remote connection interruption period in a database, an application program cache and a light memory to realize the data disaster recovery.
2. The method for updating and disaster recovery of data in a dispatch collection based on a lightweight storage according to claim 1, wherein said configuring corresponding data type numbers for a database, an application cache and a lightweight storage for each class of dispatch collection data comprises:
The dispatching centralized data comprises four major categories, namely static data, external data, table structure data and dynamic data, wherein the static data is data loaded when a dispatching centralized system program is started, the dynamic data is data accessed when the dispatching centralized system program is operated, the table structure data is information for describing a table structure of a database, and the external data is data stored in the database and written and updated by other users;
The data type numbers of static data, external data and table structure data are the same, and the data type numbers of dynamic data are the database, the application program cache and the light memory in sequence from small to large;
The method comprises the steps of using A, B, C, D to represent static data, external data, table structure data and dynamic data, wherein for the static data A, data type numbers corresponding to database, application program cache and light memory configuration are sequentially A1, A2 and A3, for the external data B, data type numbers corresponding to database, application program cache and light memory configuration are sequentially B1, B2 and B3, for the table structure data C, data type numbers corresponding to database, application program cache and light memory configuration are sequentially C1, C2 and C3, and for the dynamic data D, data type numbers corresponding to database, application program cache and light memory configuration are sequentially D3, D1 and D2.
3. The method for updating and recovering data in a dispatching and centralized data based on a light memory according to claim 2, wherein when the remote connection is normal, the dispatching and centralized system program combines the data operation state of the man-machine interface terminal, and the configured data type number controls the transmission flow of the dispatching and centralized data in the corresponding category in the database, the application program cache and the light memory to realize the data updating, and the method comprises the following steps:
When the remote connection is normal, if the data operation state of the man-machine interface terminal is that the man-machine interface terminal reloads the dispatching concentrated data, the data update relates to the dispatching concentrated data category including structural data, static data, external data and dynamic data;
the dispatching centralized system program acquires the table structure data, the static data, the external data and the dynamic data from the database in sequence, and the dispatching centralized data of each category is firstly transmitted to the application program cache and then transmitted to the light memory by the application program cache.
4. The method for updating and recovering data in a dispatching and centralized data based on a light memory according to claim 2, wherein when the remote connection is normal, the dispatching and centralized system program combines the data operation state of the man-machine interface terminal, and the configured data type number controls the transmission flow of the dispatching and centralized data in the corresponding category in the database, the application program cache and the light memory to realize the data updating, and the method comprises the following steps:
When the remote connection is normal, if the data operation state of the man-machine interface terminal is that the man-machine interface terminal executes the data writing operation, the dispatch centralized data category related to the data update comprises dynamic data;
The dispatching centralized system program obtains dynamic data from the application program cache, and the dynamic data is firstly transmitted to the database and then transmitted to the light memory.
5. The method for updating and recovering data in a dispatching and centralized data based on a light memory according to claim 2, wherein when the remote connection is normal, the dispatching and centralized system program combines the data operation state of the man-machine interface terminal, and the configured data type number controls the transmission flow of the dispatching and centralized data in the corresponding category in the database, the application program cache and the light memory to realize the data updating, and the method comprises the following steps:
when the remote connection is normal, if the data operation state of the man-machine interface terminal is that the man-machine interface terminal executes the data reading operation, the dispatch centralized data category related to the data update comprises external data and dynamic data;
The dispatching centralized system program obtains dynamic data from the database, transmits the dynamic data to the application program buffer, and transmits the dynamic data to the light memory through the application program buffer.
6. The method for updating and recovering data in a dispatching and centralized data based on a light memory according to claim 2, wherein when the remote connection is disconnected, the dispatching and centralized system program combines the data operation state of the human-computer interface terminal, and the configured data type number controls the transmission flow of the dispatching and centralized data in the application program cache and the light memory in the corresponding category to realize the data updating, and the method comprises the following steps:
When the remote connection is disconnected, if the data operation state of the man-machine interface terminal is that the man-machine interface terminal reloads the dispatching concentrated data, the dispatching concentrated data related to the data update comprises static data, external data and dynamic data;
and the dispatching centralized system program sequentially acquires static data, external data and dynamic data from the light memory and sequentially transmits the static data, the external data and the dynamic data to the application program cache.
7. The method for updating and recovering data in a dispatching and centralized data based on a light memory according to claim 2, wherein when the remote connection is disconnected, the dispatching and centralized system program combines the data operation state of the human-computer interface terminal, and the configured data type number controls the transmission flow of the dispatching and centralized data in the application program cache and the light memory in the corresponding category to realize the data updating, and the method comprises the following steps:
when the remote connection is disconnected, if the data operation state of the man-machine interface terminal is that the man-machine interface terminal executes the data writing operation, the dispatch centralized data category related to the data updating comprises dynamic data;
The dispatch centralized system program obtains dynamic data from the application program cache and transmits the dynamic data to the light memory.
8. The method for updating and recovering data in a dispatching and centralized data based on a light memory according to claim 2, wherein when the remote connection is disconnected, the dispatching and centralized system program combines the data operation state of the human-computer interface terminal, and the configured data type number controls the transmission flow of the dispatching and centralized data in the application program cache and the light memory in the corresponding category to realize the data updating, and the method comprises the following steps:
When the remote connection is disconnected, if the data operation state of the man-machine interface terminal is that the man-machine interface terminal executes data reading operation, the dispatch centralized data category related to data updating comprises external data and dynamic data;
And the dispatching centralized system program acquires external data and dynamic data from the light memory in sequence and sequentially transmits the external data and the dynamic data to the application program cache.
9. The method for updating and recovering data in a dispatching concentrated data based on a light memory according to claim 2, wherein when the remote connection is recovered to normal after the interruption, triggering the data recovering method, the dispatching concentrated system program combines the data operation state of the human-computer interface terminal, and the configured data type number controls the transmission flow of the dispatching concentrated data of the corresponding category stored during the interruption of the remote connection in the database, the application program cache and the light memory to realize the data recovering method, comprising:
when the remote connection is interrupted and the normal state is recovered, if the data operation state of the human-computer interface terminal is that the human-computer interface terminal executes the data writing operation, the dispatch centralized data category related to the data disaster tolerance comprises dynamic data;
The dispatching centralized system program obtains dynamic data stored in the remote connection interruption period from the light memory, and the dynamic data are firstly transmitted to the application program cache and then transmitted to the database by the application program cache.
10. The method for updating and recovering data in a dispatching concentrated data based on a light memory according to claim 2, wherein when the remote connection is recovered to normal after the interruption, triggering the data recovering method, the dispatching concentrated system program combines the data operation state of the human-computer interface terminal, and the configured data type number controls the transmission flow of the dispatching concentrated data of the corresponding category stored during the interruption of the remote connection in the database, the application program cache and the light memory to realize the data recovering method, comprising:
When the remote connection is interrupted and the normal state is recovered, if the data operation state of the human-computer interface terminal is that the human-computer interface terminal executes the data reading operation, the dispatch centralized data category related to the data disaster tolerance comprises external data;
The dispatching centralized system program obtains the external data stored in the remote connection interruption period from the database, firstly transmits the external data to the application program cache, and then transmits the external data to the light-weight memory through the application program cache.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410662698.7A CN118568108B (en) | 2024-05-27 | 2024-05-27 | A method for scheduling centralized data update and disaster recovery based on light memory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410662698.7A CN118568108B (en) | 2024-05-27 | 2024-05-27 | A method for scheduling centralized data update and disaster recovery based on light memory |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118568108A CN118568108A (en) | 2024-08-30 |
| CN118568108B true CN118568108B (en) | 2025-08-26 |
Family
ID=92476112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410662698.7A Active CN118568108B (en) | 2024-05-27 | 2024-05-27 | A method for scheduling centralized data update and disaster recovery based on light memory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118568108B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101053201A (en) * | 2004-11-01 | 2007-10-10 | 诺基亚公司 | Techniques for Utilizing Idle Bandwidth |
| CN101351784A (en) * | 2005-12-30 | 2009-01-21 | 阿西式·A·潘迪亚 | Runtime Adaptive Search Processor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1607869B1 (en) * | 2004-06-16 | 2008-10-08 | Freescale Semiconductors, Inc. | Data cache system |
| JPWO2015105043A1 (en) * | 2014-01-08 | 2017-03-23 | 日本電気株式会社 | Arithmetic system, database management apparatus and arithmetic method |
| CN104407944A (en) * | 2014-12-24 | 2015-03-11 | 浪潮(北京)电子信息产业有限公司 | Disaster recovery backup method and disaster recovery backup system |
| CN110086673A (en) * | 2019-04-30 | 2019-08-02 | 中国神华能源股份有限公司 | Data capture method and device |
| CN117807166A (en) * | 2023-12-29 | 2024-04-02 | 深圳市前海研祥亚太电子装备技术有限公司 | Data processing system and data processing method |
-
2024
- 2024-05-27 CN CN202410662698.7A patent/CN118568108B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101053201A (en) * | 2004-11-01 | 2007-10-10 | 诺基亚公司 | Techniques for Utilizing Idle Bandwidth |
| CN101351784A (en) * | 2005-12-30 | 2009-01-21 | 阿西式·A·潘迪亚 | Runtime Adaptive Search Processor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN118568108A (en) | 2024-08-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20200019543A1 (en) | Method, apparatus and device for updating data, and medium | |
| CN103780638B (en) | Method of data synchronization and system | |
| US7836015B1 (en) | Fast synchronization of computer databases using coverage status | |
| US6823474B2 (en) | Method and system for providing cluster replicated checkpoint services | |
| JP2022511084A (en) | Systems and methods for augmenting database applications with blockchain technology | |
| CN113987064B (en) | Data processing method, system and device | |
| CN110569149B (en) | Method for triggering Oracle disaster recovery automatic emergency switching based on fault detection | |
| CN112925614A (en) | Distributed transaction processing method, device, medium and equipment | |
| CN101185075A (en) | Computer network system and corresponding process for synchronizing second database with first database | |
| CN107273440A (en) | Computer application, date storage method, micro services and microdata storehouse | |
| US12271354B2 (en) | Methods and systems for garbage deletion in a document database | |
| CN103064882A (en) | Commercial base fault isolation method applicable to power dispatching automation system | |
| CN107451172A (en) | Method of data synchronization and equipment for edition management system | |
| CN112148436A (en) | Decentralized TCC (transmission control protocol) transaction management method, device, equipment and system | |
| CN107026880A (en) | Method of data synchronization and device | |
| CN115774754B (en) | Metadata management method, device, equipment and medium based on distributed transactions | |
| CN113297173A (en) | Distributed database cluster management method and device and electronic equipment | |
| CN118568108B (en) | A method for scheduling centralized data update and disaster recovery based on light memory | |
| US7739232B2 (en) | Programming system for occasionally-connected mobile business applications | |
| CN106959989A (en) | The synchronous method and device in master/slave data storehouse | |
| CN109376141A (en) | A kind of data migration method and device | |
| CN117880302A (en) | Method and system for synchronizing metadata between different object storage clusters | |
| KR20230138673A (en) | Method for managing database | |
| CN111198894B (en) | Method for realizing operation line data fusion and consistency | |
| US11064051B2 (en) | System and method for leader election in distributed storage systems |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |