99results about How to "Avoid data inconsistencies" patented technology

The invention discloses a cross-database distributed transaction implementation method. The method comprises the first step of receiving distributed transaction activation requests and distributing transaction identifiers to distributed transactions, the second step of receiving operation requests or an operation request collection of the distributed transactions which the transaction identifiers are distributed to for database operations, the third step of acquiring information of a target database of the database operations according to all the operation requests and sending the database operations to the target database for execution in accordance with the ACID principle, and the fourth step of clearing the distributed transactions after all the database operations are executed. The invention further provides a cross-database distributed transaction implementation device. By means of the method, the cross-database distributed transactions which are lightweight and easy to maintain and meet the ACID principle can be realized.

In a database apparatus (10), a critical database server (12) includes a primary server (20) supporting a primary database instance and a secondary server (22) supporting a secondary database instance that mirrors the primary database instance. The secondary server (22) generates an acknowledgment signal (60) indicating that a selected critical database transaction (42) is mirrored at the secondary database instance. A plurality of other servers (14, 16, 18) each support a database. A data replicator (30) communicates with the critical database server (12) and the other servers (14, 16, 18) to replicate the selected critical database transaction (42) on at least one of said plurality of other servers (14, 16, 18) responsive to the acknowledgment signal (60).

The embodiment of the invention provides an electric power marketing service application system, which is characterized in that a micro-application is predefined, wherein the micro-application comprises at least one micro-service, and the micro-service represents an electric power marketing service function implementation unit. The electric power marketing service application system comprises an access module, an application module, a service module, a data module and a basic resource module. The electric power marketing service of each function is defined into a micro-service, and then a plurality of micro-services form a micro-application, wherein the micro-services are identical in data interface mode, so that corresponding data of a certain micro-application can be acquired through calling data of the micro-services contained by the micro-application. The scheme unifies the minimum implementation unit of the electric power marketing service application system, enables data interfaces to be consistent and avoids a problem that the same data is inconsistent in different electric power marketing systems. The expandability of the electric power marketing system is improved.

The invention provides a data processing method, an RNIC and equipment, and the method comprises the steps that a first RNIC receives an RDMA write request sent by a second RNIC, the RDMA write request comprises first data and a data persistence mark, and the data persistence mark is used for indicating that the first data is to-be-persisted data; according to the RDMA write request, the first RNIC sends the DMA write request to the first processor to instruct the first processor to write the first data into the first device, the first RNIC and the first processor belong to the first device, the second RNIC belongs to the second device, and the first RNIC and the second RNIC communicate with each other based on an RDMA mode; and according to the data persistence mark, the first RNIC determines that the first data is to-be-persisted data, and the first RNIC instructs the first processor to store the first data into a nonvolatile memory of the first device. Therefore, the load of the RDMA network in the remote memory persistence process is reduced.

The invention discloses an embedded dual-core flight control software architecture method based on high-speed Linkport port. The method comprises the following steps: step one, dual-core flight control software task partitioning; step two, flight control software dual-core communication mechanism designing; step three, a flight control software dual-core data sharing mechanism; and step four, flight control software dual-core reliability designing. Flight control software architecture designing is carried out according to the method in a dual-core hardware condition, so that the single-core usage rate can be obviously reduced, the dual-core CPU occupancy rate trends to be average, and the program obtains higher time performance.

The invention provides a processing method, device and system for ensuring the consistency of calculated data. The method comprises the steps of reading off-line data in an off-line database and determining delay time of off-line data synchronization delay according to storage statistic time of the off-line data; reading real-time data of current statistic time from a preset real-time flow calculation result database and reading real-time data corresponding to the delay time as compensation data of business calculation; conducting the business calculation on the basis of the off-line data, the real-time data and the compensation data. According to the processing method, device and system for ensuring the consistency of the calculated data, the problem can be solved that uncertainty and delay of data synchronization time result in data inconsistency, the calculation accuracy of recommendation ranking scores is ensured, the performance losses of the business calculation are reduced, and the calculation efficiency is improved.

The present invention discloses a third party registration processing method based on the IMS network, which comprises that a UE completes the registration on a S-CSCF entity; the S-CSCF entity starts a waiting timer; the UE and a P-CSCF entity initiate and complete a registration status subscribing respectively to the S-CSCF entity; the S-CSCF entity initiate a third party registration to an AS when the waiting time of the waiting timer is enough. Through the present invention, the S-CSCF entity performs a waiting after the UE is successfully registered, to make the subscribing success of the registration status of the P-CSCF and the UE take precedence over the third party registration and avoid the situation of conflicting data of the UE, the P-CSCF, the S-CSCF and an HSS, to make the UE, the P-CSCF and the S-CSCF effectively process the abnormal circumstance occurred when the third party registration fails.

The invention provides a data processing method, a terminal, a server and a storage medium. The method comprises the following steps: obtaining the source service data stored in the service data server; obtaining the source service data stored in the service data server; processing the source service data according to a preset service classification rule to obtain a cache file, wherein the cache file characterizes the data after the source data is classified and sorted; the cache file is distributed to at least one service server for use when the at least one service server responds to a service access request.

The invention discloses a multi-cluster data synchronization method of a distributed storage system and a related device, wherein the multiple clusters comprise a master cluster and slave clusters, each cluster comprises at least one server used for storing information, data of each server is stored based on a key value, the method is applied to the master cluster, the method comprises the following steps: receiving a data synchronization request sent by any slave cluster, wherein the data synchronization request comprises an index key; in response to the data synchronization request, acquiring total data of a value corresponding to the index key from a database of the master cluster; and sending the total data of the value corresponding to the index key to the slave clusters, so that theslave clusters realize full update of the value corresponding to the index key. Therefore, support is provided for guaranteeing the data consistency of multiple clusters.

The invention discloses a method and a device both for avoiding IO conflict in a cloning system. The method comprises the following steps: logically dividing two cloning rolls into a plurality of data blocks with the same size according to a copying basic unit set by a user; when any one of the two cloning rolls receives an IO request, aligning content corresponding to the IO request to each data block in a range from the data blocks of starting positions of the cloning rolls to the data blocks of stopping positions of the cloning rolls according to the starting positions and stopping positions read and written by the IO request; and locking each data block corresponding to the IO request and rejecting other operation except the IO request. By the aid of the method and the device, the data consistency in a cloning process can be avoided.

The invention discloses a mysql online migration system and method based on MHA. The system comprises an MHA management node, a mysql master slave node and a new slave node, wherein the MHA management node comprises an MHA management module, an online switching module and an MHA configuration updating module; the mysql master slave node comprises an online data setting module and an offline slave database module; the new slave node module comprises a slave database setting module. The mysql online migration system and method has the advantages that the method is simple in operation steps, mysql database node migration can be completed by several simple commands, and especially the migration of the mysql master database node is convenient and simple; high stability is achieved, errors can hardly occur, and migration quality is increased; data consistency is well guaranteed, and data inconsistency is avoided; high automation level is achieved, and work efficiency is increased; due to the fact that operation is simple, multiple mysql master slave clusters can be operated at the same time, and the online migration of multiple mysql database nodes is achieved.

The invention discloses a data processing method. The data processing method comprises the following steps: first storage equipment receives a first reservation preemptive command sent by a host through a target port, wherein the first reservation preemptive command includes a port identifier of the target port, a reservation key to be checked and a LUN; a forwarding port corresponding to the target port is determined according to a pre-set port mapping relationship; the reservation key to be checked, the LUN, the port identifier of the target port and a port identifier of the forwarding port are encapsulated, so that a second reservation preemptive command is obtained; the second reservation preemptive command is sent to second storage equipment through the forwarding port; and the second storage equipment executes reservation preemptive operation according to the port identifier of the target port. The invention further provides related storage equipment for realizing the data processing method. By means of the data processing method and the related storage equipment disclosed by the invention, in a process in which different storage arrays implement online data migration, when a host cluster is subjected to split-brain, the data consistency among the different storage arrays is ensured; furthermore, the process is independent of a fibre channel switch; and thus, the application scene is relatively wide.

The invention provides a method for solving functional operation conflict inside management software by configuring a conflict matrix. The method can avoid the conditions such as data inconformity, different calculation results and the like caused by mutual interference between functions or operations due to the conflict by assisting an operator in effectively solving the conflict produced between different functions or different operations with the same function in the management software due to service reasons through the conflict matrix so that the management software has strict services and accurate data.

The invention discloses an information synchronization method and device, which are applied to a first controller, wherein the first controller is any one controller in a memory system, and the first controller and a second controller are mutually redundant in the memory system. The method comprises the following steps of receiving a first command sent by a client; sending the first command to the second controller, so as to enable the second controller to modify memory-related information according to the first command, and if the modification is successful, then returning first response information which carries a modification success result; and if the first response information returned by the second controller is received, then modifying local related memory information according to the first command. The application of the technical scheme provided by the embodiment of the invention can guarantee the real-time and reliable information synchronization between the first controller and the second controller at a command level, avoids the situation of data inconsistency, and maintains the normal work of a computer cluster.

The invention discloses a method for efficiently managing caches based on data versions, and belongs to the technical field of software development. The method for efficiently managing the caches based on the data versions makes up insufficiency of MyBatis second-level cache control, synchronization and consistency of second-level caches and database data are improved, and correlations between each cache are processed; the second-level cashes of MyBatis are accurately managed, and fine granularity of the MyBatis second-level caches is controlled; when updating operation is executed on a database table, caches generated by a query statement which is represented by a specific StatementId can be specifically cleared. According to the method for efficiently managing the caches based on the data versions, the problem is solved that database pressure is caused by a large amount of interaction between a system and a database in an existing software development process, the requirement of consistency of business data is met, at the same time, the difficulty of code development is reduced, and the performance and concurrent capability of existing or newly-established systems are improved.

The invention discloses a cross-platform theme association method, a cross-platform theme association device and equipment thereof, wherein the method comprises the steps of: obtaining the historical information of a user on a first platform; inputting the historical information into the theme model of the first platform, so that first interest feature information of the user is obtained; and inputting the first interest feature information into a cross-platform association model, so that second interest feature information is obtained, and thereby, recommending the information to the user on a second platform based on the second interest feature information. Thereby, the interest difference of the user on the different platforms can be considered; the problem that cross-platform data is inconsistent can be solved; and thus, cross-platform association based on the user is realized better.

The invention provides an electronic invoice generating method, device and system. In the generating process of electronic invoices, the process of verifying the electronic invoices through a tax-control invoice making server of the tax authority is involved, and namely tax bureau electronic signatures are generated for transaction data, so that it is ensured that the electronic invoices obtain authentication of invoice making enterprises and the tax authority, and the problem that electronic invoice data of the enterprises and the tax authority are inconsistent is effectively avoided.

The invention discloses a business processing method based on Flash. A Flash storage space is divided into a plurality of logic partition zones which store at least one type of data record; a storagespace occupied by each data record is used as a virtual sector and each virtual sector is provided with a virtual sector distribution table; each sector distribution table comprises a business ID usdfor marking the business type and a business mark used for marking whether the marking data record belongs to data in the business or not. the method comprises the following steps: when the data record is written to physical zone blocks of the logic partition zones, firstly judging whether the data record is independent data or data in the business; and setting the business ID and the value for marking the business according to the judgment result. By adding information related with business processing in the virtual sector distribution table, the efficiency of the data in the same business can be kept consistent, thereby solving the problem of data inconsistency.

The invention provides an information reporting method, an information reporting apparatus and a data node server, and is used for reducing the time-delay for meta-data information synchronization between a data node server and a meta-data server, and reducing the burden which is brought by reporting of large amount of meta-data information to the meta-data server. The method comprises determining the meta-data information, of a data block, to be reported to the meta-data server when there is requirement for reporting the meta-data information of the data block to the meta-data server, wherein if it is the first time for a data node server to report the meta-data information of the data block, the reported meta-data information of the data block includes the meta-data information of all the data blocks in the data node server, and if it is not the first time for the data node server to report the meta-data information of the data block, the reported meta-data information of the data block is the meta-data information of part of the data blocks in the data node server; and reporting the reported meta-data information of the data blocks to the meta-data server by the data node server.

The invention discloses a mobile medical information system. The mobile medical information system is realized based on BS architecture and comprises an intranet database server, a plurality of extranet database servers synchronizing data with the intranet database server, a management terminal connected with the intranet database server and a plurality of clients connected with the extranet database servers. The invention further discloses an information processing method of the mobile medical information system. Compared with the prior art, the mobile medical information system disclosed by the invention synchronizes medical diagnosis and diagnostic information of medical instruments of the same area in the intranet database server based on a time parameter, thereby capable of effectively tracking the entire life cycles of medical diagnosis of patients, helping the doctors to understand the development of diseases of the patients and effectively improving the diagnostic efficiency and the diagnostic accuracy.

The invention discloses a storage cluster and service data maintenance method and device and a computer readable storage medium, the method is applied to each storage node in the storage cluster, andeach storage node operates a network attached storage service based on a deployed CTDB. The method comprises the following steps: calling a network card monitoring service preset in the CTDB so as toperiodically detect the network state of the storage node, if the network of the storage node is abnormal, generating a kill command based on the CTDB to terminate the residual process of the networkattached storage service running on the storage node so as to remove the currently cached service data, continuing to call the network card monitoring service to periodically detect the network stateof the storage node, and after the network of the storage node is recovered, restarting the network attached storage service on the storage node. According to the method and the device, the problem ofdata inconsistency of the storage nodes due to the cache data of the residual process is effectively avoided, so that the data storage reliability of the storage cluster is improved.

The invention discloses a distributed high-fault-tolerance data real-time synchronization method from MongoDB to HBase. The method comprises the steps that an oplog operation log recording function of the MongoDB is started; a producer reads out records after the check points of the oplogs in the MongoDB, pushes each oplog to a predetermined theme of Kafka, and writes the oplogs into Redis at the same time; after the oplog enters the Storm, the operation type of the oplog is judged, and for the operation type related to data synchronization, a key suitable for HBase storage is obtained; the value and the data positioning information are obtained, or only the data positioning information is obtained; and the HBase writer receives the transmitted key-value and data positioning information and carries out corresponding processing. According to the method, real-time data synchronization from MongoDB to HBase is efficiently carried out, the accuracy of data synchronization is ensured, and the complex data real-time synchronization requirement of a service system can be met.

The invention discloses an intelligent street lamp management system and an information processing method. The intelligent street lamp management system is achieved on the basis of a BS framework and comprises an intranet database server, a management terminal, a plurality of extranet database servers and street lamp control clients, wherein the management terminal is connected with the intranet database server; the plurality of extranet database servers are synchronous with the intranet database server; the street lamp control clients are correspondingly connected with the extranet database servers; and one street lamp control client controls a plurality of street lamps. Compared with the prior art, the intelligent street lamp management system and the information processing method disclosed by the invention have the advantages that street lamp information on roads in the same area is synchronized into an intranet server on the basis of time parameters; all life cycle information of the street lamps on one road can be effectively tracked; and faults can be timely processed.

The invention discloses a data synchronization method and device, a computer device and a storage medium, and belongs to the technical field of databases. The method comprises: receiving a first change log from any database instance, the first change log comprising a first version value, the first version value is used for indicating a time point when the database instance executes change operation on data, and a data table corresponding to the first change log is determined from a home terminal database instance; and performing data synchronization on the data table according to the first version value. Due to the fact that the time sequence of data change can be determined according to the first version value, when the first change logs from the multiple database instances are received,synchronous processing is conducted on the data according to the first version value in each first change log, and the situation of data inconsistency can be avoided.

The invention discloses a method and a system for processing data. The method comprises: receiving a data reading-writing request and sending the request to a preset Leader controller; the Leader controller determining whether the data reading-writing request can be sent to a preset Follower controller for direct processing according to a preset controller state bitmap; when the Follower controller can directly process the data reading-writing request, the data reading-writing request being sent to the Follower controller and being directly processed, and feeding back a feedback message which can be directly processed; when the Follower controller cannot directly process the data reading-writing request, the data reading-writing request being recorded as a waiting message, and the waiting message being broadcasted to all Follower controllers. Through the scheme, cache data distributed on each controller can be ensured to be consistent finally under a condition of concurrent access, and a problem of inconsistent data caused thereby is prevented.

The invention discloses a metadata management system serving enterprise innovation management, and relates to the field of computer informatization management application. The metadata management system comprises an enterprise basic information module, a personnel information module, a research and development institution module, a research and development project module, a research and development expense module, an intellectual property module, a scientific and technological achievement module, a high and new technology product module and a capital and production operation information module. The metadata management system serving enterprise innovation management is used for managing innovation elements of an enterprise, sorting enterprise science and technology resources and helping theenterprise to accelerate innovation systematic construction.

The invention provides a fabricated building quality management system and a management method. The problem of difficulty in uniform management as a result of different building member fabricating manufacturers and node fabricating construction units is solved by a way of branched management of member electronic labels and node electronic labels by carrying out digitalized uniform management on building member fabrication and node fabrication with a management center server and storing the member fabricating information and the node pouring information of a building permanently by means of themember electronic labels and the node electronic labels. The system can inquire the building member information or the node pouring information quickly in the links such as prefabrication, fabrication, supervision, maintenance and problem responsibility tracing, so that the problem of inconsistent data and cross-check in the member prefabricating and node fabricating processes can be avoided, thequality management efficiency of the fabricated building can be improved effectively, and safety accidents are reduced.

The invention relates to the field of computer application technology, and particularly to a system of multi-table cross-database joint-querying and a realization method thereof. The system comprisesa compiler, an SQL dialect optimizer, a data cache, a querier and a result set. Statements of querying tables of different databases are separated out through the compiler to form independent databasedialects, an SQL is optimized by the optimizer to improve execution efficiency thereof, finally, SQL statements are executed to respectively query the tables of the different databases, obtained query results are stored in the data cache, and finally, the query statements are executed by the querier to obtain the desired result set. Difference of the databases is masked in a whole process of thesystem, and the whole process is transparent for upper-layer operations. The system can be used in multi-table cross-database joint-data-querying of the databases.

The invention provides a data processing method and device and a storage medium. The data processing method comprises the steps that a data processing device obtains data corresponding to a data request from a physical library and a cache library based on the data request sent by a client, and compares the corresponding data in the physical library with the corresponding data in the cache librarythrough a data comparison algorithm to obtain difference data blocks in the physical library and the cache library. And according to the difference type of the difference data block, carrying out datarestoration on the difference data block in the cache library, so that the data of the physical library and the cache library are kept consistent. According to the method, the difference data can bequickly compared and subjected to data restoration, the problem that the data of a physical library and the data of a cache library are inconsistent is avoided, and therefore the processing performance of the application server is improved.

The invention provides a method for data access. The method is used for realizing data synchronization between a mobile terminal and a server. The method comprises the following steps: the mobile terminal utilizes hashing operation to catch the change of data, and based on the change of the data, the mobile terminal starts a data synchronization process. According to the method disclosed by the invention, computed hashing data are used as a core, so that the method disclosed by the invention has high feasibility and high efficiency. In the process of data synchronization, under the condition that mobile terminal users participate in the data synchronization, the problem that data at the mobile terminal are inconsistent with that at the server is effectively solved.