845results about How to "Improve synchronization efficiency" patented technology

Embodiments of the present disclosure disclose a data synchronization method, system and apparatuses thereof. The data synchronization method includes the following processes: sending, by a client, a data characteristic verification message carrying one or multiple data characteristics for data in a client database, to a server; comparing, by the server, the one or multiple data characteristics carried in the data characteristic verification message with the data characteristics for the data in a server database; determining, by the server, the data to be synchronized based on a result of the comparing and sending the client a data characteristic verification response carrying information indicating the determined data to be synchronized; and determining, by the client, the data to be synchronized according to the information in the data characteristic verification response, and synchronizing the determined data to be synchronized with the server. The method, system and apparatus thereof provided by the embodiments of the present disclosure can reduce the amount of data to be transmitted in data synchronization, and improve the efficiency of data synchronization.

The invention discloses a database synchronization method, in which a synchronous table comprising a synchronous identification numbers and SQL statements is adopted to realize the data synchronization, a database synchronization system is disclosed also, which comprises a primary server having a backup unit, a synchronous table unit and a backup server having a request unit, an acquisition unit and a synchronization unit. The method and system realizes the synchronization of the database and simplifies the modification of the server configuration by use of a synchronous table, thereby the database can be implemented without the restriction of the operation system and the database system which results in an improved efficiency.

The invention relates to a file based database synchronization method, which has the following main technical features that through a mode of installing a data synchronization tool component in a source-end database and installing an ETL (extract transform and load) service component in a target-end database, the control between the ETL service component and the data synchronization tool component is implemented through a protocol, and the synchronization is implemented from the source-end database and the target-end database in a file mode. The method disclosed by the invention is reasonable in design; because the database synchronization is implemented from the source-end database and the target-end database in a file mode, the database data required to be synchronized can be efficiently stored, and in a heterogeneous database and an operating system environment, the synchronous operation of data can be implemented through file analysis, thereby supporting a characteristic of carrying out synchronization on various heterogeneous databases, meanwhile, by using a total synchronization method and an incremental synchronization method, the efficiency of database synchronization is improved.

The embodiment of the invention provides synchronization method and device for MAC (Media Access Control) address table information of a distributed network processing system. In the method, during the transmission of a service message of the same service, a service processing board receiving the service message learns or updates the MAC address table information corresponding to the MAC address according to the MAC address of the service message, the MAC address table information is the corresponding relationship between the MAC address and the port of the service processing board; at the same user network interface side or the same network interface side of the distributed network processing system, the MAC address table information is synchronized to another service processing board of the distributed network processing system if the transmission port receiving the service message and the transmission port transmitting the service message are not located on the same service processing board. The efficiency for the synchronization of the MAC address table information is improved, and the space occupied by the MAC address table information is saved.

The invention provides a device for the data timing synchronization of a heterogeneous system. The device comprises a creation unit, an acquisition unit and an importing unit, wherein the creation unit creates a middle table in a target database, and the middle table has a table structure the same as that of a source data table in a source database; the acquisition unit acquires target data from the source data table; and the importing unit imports the target data acquired by the acquisition unit into the middle table. Correspondingly, the invention also provides a method for realizing the data timing synchronization of the heterogeneous system. By the technical scheme, data can be more effectively and safely synchronized, concurrency conflicts can be effectively prevented, and the running efficiency and reliability of the system are improved.

The disclosed method for synchronizing OFDM signal frequency and estimating channel type comprises: obtaining the coarse position and decimal frequency-offset estimation for OFDM signal; correcting the frequency-offset; reordering local or received frequency-domain training sequence; searching the coarse integer frequency-offset; fine searching the integer frequency- offset to obtain the integer frequency-offset estimation, OFDM signal position estimation, and the effective channel position. This invention reduces search operation time, and can ensure synchronization effect.

The embodiment of the invention provides a block chain processing method and device and a block chain node. The method comprises the steps that a block generation node generates blocks according to transaction information, wherein the blocks comprise block heads and block bodies, the block heads comprise identification information of the blocks, hash values of the block heads, the hash values of the block bodies and storage path information of the block bodies, and the block bodies comprise the identification information of the blocks and the transaction information; the block heads are broadcasted to a block chain network, so other nodes in the block chain network record the block heads to a block chain account book; and storing the block bodies according to the storage path information of the block bodies. According to the embodiment of the invention, a block chain is changed into a block head chain and content contained in the block head chain is less than that contained in the block chain, so synchronization efficiency of the block head chain in the block chain network is improved, and storage space of the nodes in the block chain network is saved.

The invention discloses a method and system for converting or synchronizing databases. The method comprises the following steps of: reading a data conversion and synchronization strategy set corresponding to a target database from a configuration file; polling target database connection information in the configuration file, and opening the target database; reading the synchronization strategy, reading SQL (structured query language) statements in a source database according to the organization of the synchronous strategy, and reading source data from the source database according to the SQL statements; and inserting the data read from the source database into the target database to carry out synchronization. According to the method and system for converting or synchronizing databases, disclosed by the invention, a mode of actively inserting the data stored in the source database and subjected to reading or conversion into the target database is adopted, so that the method and system disclosed by the invention can be applied to a multi-source heterogeneous situation and a situation that the structure of the source database is inconsistent with the structure of the target database, and also can be used under the condition that the source data is in a weak trend status but the target database is in a strong trend status, thereby adapting to different conversion modes; and based on the method or system for synchronizing databases, the structures of the source database and the target database are not destroyed.

The invention relates to a main and auxiliary database synchronization method and device for data synchronization between a main database and an auxiliary database. The method includes a transaction distributing step, namely distributing each transaction or transaction identifier read from the main database to writing queues; a transaction writing step, namely writing transactions or transactions with corresponding identifiers, in each writing thread corresponding to each writing thread through multiple writing thread parallel. According to the method, multiple writing threads are adopted to perform writing operations parallelly and simultaneously, delay is reduced, main and auxiliary database synchronization can be realized timely, and synchronization efficiency is improved.

The invention provides a method and a system for multi-thread synchronization in a distributed system. The method and the system can support the flexible control of the multi-thread synchronization under custom conditions and achieve the purpose that a thread takes the initiative to release a resource and accurately awakens a related waiting thread, and are high in resource utilization rate. The method for the multi-thread synchronization in the distributed system comprises the following steps: receiving a resource control request of the thread, wherein the request has a parameter, and the parameter comprises an identification of the thread and a resource name of the requested resource; reading data of a resource node of the resource according to the resource name; trying to lock the resource, wherein when locking fails, the identification of the thread is placed on a waiting queue of the resource, so that the thread enters a blocking state; when the locking is successful, the thread controls the resource, and the resource is released after the thread utilizes the resource to complete execution; other threads in the waiting queue of the resource are awakened, wherein the awakened threads can try to lock the resource.

The invention discloses an audio and video subtitle generation method and apparatus. The method comprises the following steps: receiving voice data with subtitles to be generated and text data; according to the rhythm of speakers, segmenting the vice data to obtain each voice data segment according with habits of the speakers; according to the voice data segments, segmenting the text data to obtain text data segments corresponding to the voice data segments; and according to time information of each voice data segment, obtaining starting time and finishing time of the text data segments corresponding to the voice data segments. According to the invention, the text data can be displayed synchronously with the voice data in a simple and efficient mode, and the generated subtitles are more complete.

The method comprises: 1) the backstage counts the outputted increment transactions, and organizes the outputted increment sync transaction set; wherein said increment transactions comprises the operation mark and its corresponding record data content; 2) the backstage transmits all increment transaction data to the sync module of front-stage memory database; 3) after the front-stage receives the data, for the record data content corresponding to each increment transaction, calling the operation approach in the corresponding table to make the increment sync for each increment transaction.

The invention discloses a method for synchronizing wide area data between data centers based on a cache. The method is characterized by comprising the following steps of: (1) initializing synchronous systems, namely filling data frequently accessed by the systems into a memory according to the configuration by a server of a local data center, communicating with each remote data center required to be synchronized, comparing the difference of the data, and then performing synchronization; (2) performing read-write access on the data, namely directly reading and writing the cache in the memory through an interface, and writing the data in the memory into a hard disk by one or more independent threads in a service program of a background; and (3) performing remote synchronization on the data, namely periodically and directly synchronizing the contents called and modified by the interface from the memory to a remote data center, and executing the same interface calling by the remote data center to complete data synchronization. The method has the advantages of high synchronizing efficiency, small occupied bandwidth, high reliability, good transplantability and simple deployment, and solves the problem of inconsistency of other abnormities when the systems run.

The invention discloses a remote file synchronizing method which is realized based on a distributed enterprise service bus. The method can start real-time monitoring of a heterogeneous system in the distributed enterprise service bus to track the dynamic change of a file system, obtains increment information through difference calculation, and then sends to a destination end to complete new file reconstruction. The method disclosed by the invention adopts efficient file discovery, difference calculation and reconstruction polices, so as to greatly reduce the time and transmission quantity for file remote synchronization.

The invention provides a method and a system for synchronizing data. The method comprises the steps: receiving a synchronous command; generating a first original synchronous policy comprising at least a first file fingerprint; receiving a second file fingerprint included in a second original synchronous policy; comparing if the first file fingerprint and the second file fingerprint are the same; if yes, applying a preset policy change rule to modify the first original synchronous policy and / or the second original synchronous policy so as to generate a first modified synchronous policy and / or a second modified synchronous policy; synchronizing data according to the first modified synchronous policy and / or the second modified synchronous policy. By applying the technology provided by the preferable embodiment of the invention, once the names or positions of files with same fingerprints are changed, the data does not need to be synchronized by networks, and the files can be modified inside equipment, thereby greatly reducing the burden of the networks and enhancing the data synchronizing efficiency.

The invention discloses a method, a device and a system for realizing dynamic blocking in a three-dimensional role playing game. The method comprises the following steps of: setting areas required to be dynamically blocked in a projected two-dimensional game scene in advance, establishing a mapping relationship table between each set dynamically blocked area identifier and a corresponding blocking type, storing the mapping relationship table in a file, distributing the file to a server and a client, storing the mapping relationship table by the client, and establishing a mapping relationship between a three-dimensional game scene and the two-dimensional game scene; when the next found dynamically blocked area comprises a game event, acquiring a dynamically blocked area identifier corresponding to the game event; updating the established mapping relationship table according to blocking type information which carries the dynamically blocked area identifier and is returned from the server; and determining a game path according to the updated mapping relationship table, and acquiring a game operation strategy corresponding to the blocking type of the dynamically blocked area identifier for operation according to the determined game path. By the method, the device and the system, the user cost can be lowered, and the synchronization efficiency can be improved.

The embodiment of the invention relates to the technical field of databases, in particular to a database synchronization method and a database synchronization device, which are used for improving the initialization efficiency in a data synchronization process of a target database. According to the database synchronization method and the database synchronization device, a total data request message is sent to a source snapshotting server by a target server, determined total data information is sent to the target server by the source snapshotting server, so that a total data snapshotting document is obtained by the target server according to the total data information, and the total data snapshotting document is led into the target database, and thus, the initialization process of the target database is finished, thereby realizing automatic initialization control in the data synchronization process of the target database and improving the initialization efficiency in the data synchronization process of the target database.

The invention relates to the technical field of database synchronization, and provides a data synchronization method and a data synchronization device. The data synchronization method comprises the following steps: obtaining a backup file generated by a source database by a source synchronization tool; Sending the backup file to the destination synchronization tool so that the destination synchronization tool can restore the reference database and the active transaction log according to the backup file; Obtaining the maximum log sequence number corresponding to the source database at the backup completion time; reading the operation log whose log sequence number is larger than the maximum log sequence number in the log file of the source database, and sending the operation log to the destination synchronization tool, so that the destination synchronization tool synchronizes data on the destination database according to the reference database, the active transaction log and the operation log. The data synchronization method of the invention does not need to perform a rollback operation on the active transaction, and the data processing amount is reduced. At the same time, there isno need to limit the transaction commit time and the backup start time, which can effectively improve the efficiency of synchronization.

An embodiment of the invention provides a server of a distributed storage system and a data synchronizing method between servers. The method includes: the first server receives a data updating request and searches the data fragment corresponding to the keyword information in the data updating request; the data fragment is updated according to the updating data in the data updating request; if the fact that the second server with other data fragments identical with the data fragment in name is offline is detected, the data updating operation is recorded into the first log of the first server, wherein the data fragments with the same name are disposed in the first server and the second server; a log synchronization request transmitted by the second server is responded to, and the first log is returned to the second server. The method has the advantages that the second server only needs to perform data synchronization according to the first log, data synchronization efficiency is increased greatly, the servers can provide data services for users as soon as possible, and user waiting time caused by server offline can be reduced.

The invention relates to a data synchronization method between an memory database and a physical database. The method comprises the following steps: 1) representing the operation to the source database in the mode of SQL operation, decomposing the SQL operation to an SQL syntax and the corresponding SQL parameters, registering the SQL syntax and the SQL parameters of the operation source database, storing the registered SQL syntax and the SQL parameters in an SQL management region to manage; 2) for a data change of the source database, combining the SQL syntax with the SQL parameters to generate a logical log; and 3) regenerating the logical log of the step 2) in the target database according to the registered SQL syntax and the SQL parameters. The data synchronization method of the invention utilizes the prepare mechanism once and the execute mechanism many times to greatly increase the synchronization efficiency; the size of the logical log is reduced, the transmission loss of the system and the waste of the disk space are reduced; and the synchronization application and the corresponding SQL changes can be supported, and the updating and extending of the system can be supported.

The embodiment of the invention discloses a data transmission method, a data transmission device and a data transmission system. The data transmission method comprises that: a synchronous mode slave device receives the refreshed data transmitted by a master device, and records the data identifier of the refreshed data; if the synchronous mode slave device takes over the work of the master device, the synchronous mode slave device receives the data identifier of the refreshed data newly received by an asynchronous mode slave device; and the synchronous mode slave device transmits the refreshed data which is received by the synchronous mode slave device and is not received by the asynchronous mode slave device to the asynchronous mode slave device according to the data identifier of the refreshed data newly received by the asynchronous mode slave device and the data identifier of the refreshed data newly received by the synchronous mode slave device. The embodiment of the invention solves the problem that the conventional data synchronization must use full synchronization so as to result in low synchronization efficiency; and the efficiency for the data synchronization is improved.

A block chain hybrid consensus method based on DAG algorithm comprises the following steps: 1.a client collects and verifies transactions or transaction sets; 2, selecting at least two graph nodes whose weight is high than that set value from the DAG network, verifying the transaction validity of the graph nodes or the transaction set, and proceed to the next step after the verification; 3, the client end submits a transaction or a transaction set to the DAG network; Step 4, adopting a second consensus algorithm different from the DAG consensus algorithm to carry out deterministic consensus; 5, the consensus initiator sends a graph node consensus completion message to the DAG network; Step 6: increasing the weight of the graph node in the DAG network.

The invention discloses a container monitoring method and system, wherein the method comprises the following steps of detecting a container list in a host machine, and obtaining the container monitoring information and the container identification of containers, in a survival state, recorded in the container list; providing the container monitoring information and the container identification of the containers recorded by the container list for a database for comparison; if the container identification which is not recorded in the database is recorded in the container list, generating monitoring items according to the container identification and the container monitoring information, and adding the monitoring items into the database. Through the method and the system, a server end database can automatically find change conditions of containers in the host machine. Compared with a complicated mode of manually adding and deleting monitoring items in the prior art, the method has the advantages that the synchronization efficiency is greatly improved, and a server can more favorably monitor the operation state of each container.

The invention discloses a data synchronization method and device. The method comprises the steps of reading a catalogue index file in a first data source, thereby obtaining data catalogues of n applications contained in the catalogue index file; reading a data index file Ei contained in the data catalogue Di; resolving an update configuration file of the application Ai, thereby obtaining catalogues of target data and a type attribute of the target data in the application Ai, wherein the target data is the data on which data synchronization needs to be carried out; and converting a data structure of the data in the first data source according to the change information in the data index file Ei and the type attribute of the target data, wherein a second data source obtains the data after the data structure is converted in the first data source, thereby finishing data synchronization. According to the method and the device, the technical problem that in the prior art, the synchronization performance of the data between different databases is relatively low due to the fact that a user cannot screen the data needing to be synchronized according to the demand of the user is solved.

The invention discloses a data synchronization device. The device comprises a memory and a processor, wherein a data synchronization program capable of running on the processor is stored on the memory. Execution of the program by the processor comprises the steps that when an update request is received, synchronization data corresponding to the update request is acquired, and synchronization taskscorresponding to the synchronization data are established; the synchronization tasks are added into a task queue, and the synchronization data is stored into a cache region after being associated with the synchronization tasks; and when it is detected that the storage amount of the synchronization data cached in the cache region reaches a first preset threshold or the quantity of the tasks in thetask queue reaches a second preset threshold, threads in a thread pool are started to process the synchronization tasks in the task queue, so that the synchronization data stored in the cache regionis sent to an external management system. The invention furthermore provides a data synchronization method and a computer readable storage medium. Through the data synchronization device and method and the computer readable storage medium, code redundancy is reduced, and data synchronization efficiency is improved.

The invention relates to a synchronization method for a local desktop and a remote virtual desktop, a system and a use method of the system. Data of the local desktop is logically layered to form logical layers, such as an operating system layer, an application software layer, a user data layer and a user configuration layer; while the local desktop is synchronized with the remote virtual desktop, at least data of the user data layer are kept being synchronized with data of the remote virtual desktop; the data of the remote virtual desktop are logically layered in the same way, and are additionally kept being synchronized with data of a corresponding logical layer on the local desktop by adopting a duplicate removal technology; and only different data in the corresponding logical layer is transmitted. By adopting the synchronization method, a user can use the same desktop on different computer equipment; besides, the system cost is lower, and the ''boot storm'' problem does not exist; and in addition, after the data of the remote virtual desktop is synchronized onto the computer equipment of the user, hardware resources on the computer equipment are used, so that the existing hardware resources of the computer equipment can be fully utilized.

An embodiment of the invention discloses a data synchronization method, a device and a system, and relates to communication technology field, for increasing synchronization efficiency between a net management equipment and a net element equipment. The data synchronization method comprises: building up the identification corresponding to at least two request synchronous data to be an identification combination; sending a data synchronization instruction which comprises the synchronous request of at least two data and the identification combination; receiving the synchronous data requested by the data synchronization instruction, updating the received data. The embodiment of the invention is mainly used in a network management system.

The invention provides a data synchronization method, a server and an electronic device. The method comprise the steps of upon detecting that the current electronic device successfully logs in a service web page of a cloud server through a user account, sending the identifier list of the corresponding application program to the electronic device on the condition that the application program corresponding to the user account is already stored in the cloud server; receiving the identifier of a first target application program selected by the electronic device from the identifier list, and determining the corresponding data of the first target application program; on the condition that the binding state is just the binding usage state, conducting the data synchronization between the electronic device and the cloud server for the data of the first target application program; on the condition that the binding state is the non-binding usage state, displaying the data of the first target application program in the form of web pages, and modifying the corresponding data of the first target application program upon receiving a modification instruction from the electronic device and aiming at the data of the first target application program. According to the technical scheme of the invention, the efficiency of data synchronization is improved.

The invention relates to a data synchronization method and device, computer equipment, and a storage medium. The method comprises the following steps: receiving a data synchronization instruction sentby a scheduling server; querying existing data and a corresponding data storage path in a source server according to the data synchronization instruction; performing full-volume synchronization on the data to the local according to the data storage path; when the full-volume synchronization is completed, sending prompt information indicating that the full-volume synchronization is completed to the scheduling server, wherein the prompt information is used for indicating the scheduling server to trigger an incremental data synchronization instruction; receiving the incremental data synchronization instruction sent by the scheduling server; querying, according to the incremental data synchronization instruction, new incremental data and a corresponding incremental data storage path from thestart of the full-volume synchronization in the source server; and incrementally synchronizing the incremental data to the local according to the incremental data storage path. The scheme of the invention can improve the data synchronization efficiency.

The invention discloses a time synchronization and data exchange apparatus and method used for combined simulation of a power system and an information communication system. The time synchronization and data exchange apparatus comprises an information communication system simulation synchronization apparatus and a power system simulation synchronization apparatus. A "peer-to-peer" synchronous system framework is adopted, so that both an information communication simulator and a power system simulator can flexibly and actively send data. An event queue is arranged on each of two sides and used for forwarding data with a time stamp and event starting time, and also serves as a "synchronous time axis", so that two simulation platforms are enabled to keep time synchronous while the data is transmitted. In a simulation process, the two simulators concurrently execute respective simulation tasks by reference to the "synchronous time axes" on the own sides, and when the speeds of the two simulators are not matched, the two simulators are suspended for waiting for each other.