38 results about "Copying Processes" patented technology

The invention relates to the field of databases, in particular to a database disaster tolerance synchronization method based on packet replication and a database system. The invention provides a refined synchronization control mechanism based on a grouping strategy aiming at the problem that a unified global synchronization strategy cannot meet refined and differentiated requirements of distributed applications on data consistency, availability and performance in the existing database replication technology. Multiple groups of standby libraries adopt different synchronization levels to perform grouping copying in the same database; a logic abstraction layer of a synchronization group is introduced, a synchronization strategy and a physical standby library are decoupled, and multiple different synchronization mechanisms of a master-slave replication process are allowed in a database; a synchronous waiting mode of a traditional single path is broken through by utilizing a multi-waiting queue and a grouping ACK processing mechanism, so that state advancement of different groups does not interfere with each other; and checking is completed based on the consistency of the state mask, so that the transaction can be successfully returned only after all specified synchronization conditions are met, and the strong consistency of data is ensured.

The invention provides an online fragment restructuring method and related equipment, and relates to the technical field of computers.The method comprises the steps that an online fragment restructuring request is received, a target fragment is determined, a migration task is created in the target fragment, and a first coroutine and a second coroutine are created in the target fragment according to the incremental copying process in the migration task, the first coroutine and the second coroutine are executed asynchronously and concurrently, a binary log event in the source fragment is obtained in the first coroutine and written into a relay log of the target fragment, and data in the relay log is written into the target fragment through the second coroutine. The problem of shutdown migration is solved, shutdown processing is not needed, usability and efficiency are improved, dependence on manual operation is reduced, and the scene application range is widened.

The subject technology receives a first query, the first query comprising a first set of statements, the first set of statements including at least a first statement for performing a first Data Manipulation Language (DML) operation on a first table, the first table included in a source file.The subject technology executes the first query, the executing including determining whether to perform a copy-on-write (CoW) process. subject technology performs a CoW fallback process. The subject technology performs the copy-on-write process for the first query based on a result of the CoW fallback process.

The invention discloses a message processing method, electronic equipment, a storage medium and a program method, which are applied to the technical field of network communication. The message processing method comprises the following steps: matching an IP address of a current message with a preset database through a query component of a VPP module arranged in a user mode so as to determine identification information of the current message; determining a target value range where the identification information is located through a message processing component of the VPP module, and determining and executing a target processing mode of the current message based on the target value range; wherein the target value range comprises at least one preset value range, the target processing mode is a first mode or a second mode, the preset value range corresponds to the first mode or the second mode, the first mode comprises discarding, and the second mode comprises passing or forwarding. The message is processed through the VPP module in the user mode, the message processing does not depend on a kernel, a large number of message copying processes can be reduced, and the message processing efficiency is effectively improved.

Methods for local page writes via pre-staging buffers for resilient buffer pool extensions are performed by computing systems. Compute nodes in database systems insert, update, and query data pages maintained in storage nodes. Data pages cached locally by compute node buffer pools are provided to buffer pool extensions on local disks as pre-copies via staging buffers that store data pages prior to local disk storage. Encryption of data pages occurs at the staging buffers, which allows a less restrictive update latching during the copy process, with page metadata being updated in buffer pool extensions page tables with in-progress states indicating it is not yet written to local disk. When stage buffers are filled, data pages are written to buffer pool extensions and metadata is updated in page tables to indicate available / valid states. Data pages in staging buffers can be read and updated prior to writing to the local disk.

Processing circuitry decodes, from a bitstream carrying a video including a current picture, a signal indicative of a subblock based intra block copy (IBC) merge mode for predicting a current block in the current picture. The processing circuitry determines a predictor offset (also referred to as offset BV) associated with the current block. The predictor offset indicates a predictor block in the current picture corresponding to the current block, the predictor block includes a plurality of predictor subblocks respectively corresponding to a plurality of subblocks in the current block. The processing circuitry determines a first block vector of a first subblock according to a first predictor block vector associated with a first predictor subblock. The processing circuitry reconstructs the first subblock in the current block according to the first block vector that points to a reference block for the first subblock in the current picture.

The invention relates to a method, equipment and a product for data replication. The method comprises the following steps: in response to a received data replication request, obtaining compressibility information of a data block of a source end; the method further includes determining a compressibility flag for the data block based on the compressibility information. In addition, the method also includes copying the data block and a compressibility flag to the target end through the transmission path, where the compressibility flag indicates whether the data block can be compressed at the target end. In this way, the transmission delay in the data copying process can be reduced, and the throughput of the data can be improved. Meanwhile, the risk that data cannot be recovered due to long-time transmission delay can be reduced. Besides, the method that compression attempts are no longer carried out on incompressible data blocks can reduce unnecessary calculation in the copying process, system resources can be efficiently utilized, and the user experience feeling is improved.

The embodiment of the present invention provides a heterogeneous data synchronization processing method, comprising the following steps: Step 1: storing the data change information corresponding to the main table of the source Oracle database of the first server and the data change information corresponding to the secondary table in a queue file; Step 2: using a transmission process to transmit the queue file of the first server to the target system corresponding to the second server through TCP / IP; Step 3: using a replication process to read the data change information from the queue file of the target system corresponding to the second server; Step 4: processing the data change information through a program specified by a replication process configuration file, and synchronously saving it to the target database of the second server. In the embodiment of the present invention, the data of the source database and the target database are synchronized and the data delay is maintained at the sub-second level, while improving the query efficiency.

This application provides an information processing apparatus, an information processing method, and a storage medium. The information processing apparatus, which can be used as a vehicle key, includes: a display unit that displays information about one or more other devices connected to the information processing apparatus; a memory; and a processor connected to the memory. The processor is configured to: receive a user selection that selects one or more other devices from the one or more other devices displayed on the display unit to operate as a vehicle key, and perform copying processing on each of the selected one or more other devices for use as a vehicle key.

The invention discloses a one-way isolation optical shutter device and a data transfer method thereof, and relates to the technical field of network security isolation device data transmission, and the data transfer method applied to a one-way isolation optical shutter extranet machine device comprises the following steps: S1, starting a program A to check historical configuration; s2, the program A loads the program B, and the loaded configuration is issued to the program B through the eBPFMap; s3, the program B obtains the data packet from the input network card; s4, the program B judges a source IP address and a source port in the current data packet; s5, the program B modifies a target IP address, a target port and a target network card interface in the current data packet; s6, the program B calculates a checksum according to the IP header and UDP header load data; and S7, sending the modified data packet through an optical fiber channel of the one-way isolation optical gate device. According to the scheme provided by the invention, the data packet only has two copying processes in the sending process, and signal interruption triggering is not needed.

The invention relates to the technical field of data transmission, and provides a cross-database table data copying method and system, and the method comprises the steps: creating an external table of a far-end database through postgresfdw; a COPY grammar support range is increased, a postgresfdw function is expanded by adding a function interface, and a COPY process is modified according to the expanded postgresfdw function; and calling a corresponding function interface according to the positions of the source table and the target table, and copying and transmitting table data by using the modified COPY process. According to the cross-database table data copying method and system, efficient and accurate data copying between the local database and the remote database can be achieved, the operation process is simplified, the data migration efficiency is improved, the data transmission compatibility is improved, repeated development is reduced, and transaction consistency is guaranteed.

To reduce an operational load of a service desk task.SOLUTION: An information processing program causes a computer to perform receiving processing, copying processing, giving processing, and transmission processing. In the receiving processing, the computer receives a request to write to a help content in a display screen of the help content. In the copying processing, the computer copies the help content in response to receiving a write request. In the giving processing, the computer gives a right to edit the copied help content to a user from whom the write request is received, and gives a right to browse to an operator of the help content. In the transmission processing, the computer transmits inquiry data including the help content edited by the user, to an address of the operator.SELECTED DRAWING: Figure 2

The subject technology provides modifying data in a partition stores a version identifier and a set of physical row positions in a header, including minimum and maximum value occurrences for each column. When a query to modify data is received, the subject technology determines which rows to modify, checks eligibility for skipping partition scanning, and compares the to-be-modified positions with the stored positions. If no stored positions are modified, the subject technology skips scanning and maintains existing statistics, and creates a new combined partition without recalculating statistics. If modifications are made, the subject technology evaluates eligibility for processing using delta files and a bitset, or performs a copy-on-write process if ineligible.

In a management node that manages a path between a primary storage system and a secondary storage system in a computer system, the secondary storage system includes a first node having a first SCS that processes copying in a unit of copy and a second node having a second SCS that performs a copy process in place of the first SCS when a failure occurs in the first SCS, the management node includes a processor, and the processor calculates a necessary number of paths, which is the number of paths necessary for a performance requirement, on the basis of quality of a network between the primary storage system and the secondary storage system and the performance requirement related to a communication amount necessary for copying in a unit of copy, and sets the necessary number or more of paths between the primary storage system and the first node.

Method, computer program product, and computer system are provided. A controller component verifies the state of all file sets. The controller component initiates a sub-controller component, based on successfully verifying the state of the file sets. The sub-controller component suspends write operations to all databases at the primary site computer. Based on the suspending completing without error, the sub-controller executes point-in-time copy processes for each of the databases and for application non-database files at the primary site computer. Applications using the databases and non-database files are not suspended. Based on all of the point-in-time copy processes completing without error, the sub-controller component resumes write operations to all databases at the primary site computer. The point-in-time copies are automatically sent to the secondary site computer so that the applications can operate at the secondary site computer if the primary site computer becomes unavailable.

A system and method for performing replication using mediums. A snapshot ‘S’ is selected for replication, and the anchor medium ‘M’ of S is identified. The replica storage array ‘R’ to which M is being replicated determines a list of medium extents which are available. R sends this list to an original storage array ‘O’ and O generates a list of medium extents which need to be sent to R. Only those medium extents corresponding to M which R does not already have will be sent from O to R. Also, R can obtain medium extents from other source storage arrays during the replication process.

An apparatus includes at least one processing device comprising a processor coupled to a memory. The processing device is configured to send at least one command to a target storage system, to receive, in response to the at least one command, information characterizing one or more replication parameters supported by the target storage system, and to configure a replication process to replicate data from a source storage system to the target storage system utilizing at least a particular selected one of the one or more replication parameters supported by the target storage system. The command may comprise, for example, a Get Feature command that obtains a feature list providing the information characterizing the replication parameters supported by the target storage system. As another example, the command may comprise an Inquiry command that obtains a designated page providing the information characterizing the replication parameters supported by the target storage system.

The invention discloses an image blurring method and device based on double blurring, a terminal and a storage medium, and the method comprises the steps: determining an image blurring region range during the first downsampling; setting the size of the output texture of the first downsampling blurring according to a preset proportion; establishing a down-sampling texture coordinate transformation matrix by using the image fuzzy region range and the output texture size; adjusting a vertex shader during the first downsampling fuzzy processing based on the downsampling conversion matrix; and sampling points around the sampling points by using a fragment shader, and mapping a sampled result to a downsampling fuzzy output texture. The first downsampling can be combined to the process of copying the image, and the last upsampling can be combined to the process of copying the image, so that the pixel quantity of the two copying processes is reduced, local blurring of the image can be achieved, additional copying is not needed, and occupation of GPU resources is reduced.

Aspects of the disclosure are directed to memory mirror sequencing for memory patching. In accordance with one aspect, the disclosure includes initializing a memory mirror sequence (MMS) controller for a plurality of parallel read only memory (ROM) to random access memory (RAM) copy operations for a random access memory (RAM) wherein the MMS controller includes one or more parallelization parameters; triggering a parallel ROM to RAM copy procedure using the MMS controller with the one or more parallelization parameters; and executing a memory patching process to update one or more selected contents of the RAM for an updated built-in self-test (BIST) test pattern.

Embodiments of the present application provide a log replication method and device and storage medium, relating to the technical field of database, comprising: receiving a write request sent by a client, the write request being sent by the client through RDMA multicast, the write request being used to instruct a standby end to copy a log from a host end, reading metadata of a log corresponding to the write request from a ring array of the host end through an RDMA read operation according to the write request, the log being generated by the host end according to the write request received from the client, and copying the log according to the metadata of the log, wherein the client, the host and the standby are in the same multicast. The client, the host and the standby are arranged in the same multicast, and the standby directly reads log data of the host through RDMA multicast, thereby avoiding multiple negotiation communications with the host in the replication process, improving the replication efficiency and reducing the CPU and memory resource overhead of the host.

The invention discloses a data processing method and system, electronic equipment and a computer readable storage medium. The data processing method comprises the following steps: determining a to-be-copied first rule stream and a selected second domain in response to a copying operation for a rule stream in a first domain; determining node information and rule data representing the first rule flow; the node information indicates a plurality of nodes included in the first rule flow, a connection relationship among the plurality of nodes and a binding relationship between the rule data and an execution node in the plurality of nodes; and independently transmitting the node information and the rule data to the second domain. According to the method and the system provided by the embodiment of the invention, the cross-domain copying of the rule flow can be realized, the cross-domain cooperative management of the flow data is facilitated, the service rule with the problem is positioned before the rule flow is sent, the condition that the rule flow copying fails due to the problem in the cross-domain copying process is avoided, and the user experience is improved. The copying risk is reduced, and the copying effectiveness and the copying efficiency are improved.

The utility model relates to intelligent door card technical field discloses a kind of intelligent door card anti-copying encryption shell, including shell, annular groove is opened in the surface of shell, installation cavity is opened in the inside of shell, locking groove is opened in the inner wall of annular groove, the utility model is in the mode of pressing press-in pin and rotating installation shell, utilize the sliding connection of slide bar and locating rod in annular groove, drive installation shell to be smoothly detached from shell, greatly improve the disassembly efficiency, it is convenient to carry out quick overhaul and replacement to internal chip, avoid the problem that traditional door card is difficult to disassemble, inconvenient to maintain, simultaneously, holographic anti-copying coating adopts metal aluminum layer material, its special optical reflection effect is extremely easy to be destroyed in copying process, to effectively prevent pattern being copied completely, ensure the security and uniqueness of door card, avoid the security risk caused by door card being copied, not only effectively improve user experience, also significantly enhance the protection ability of intelligent door card.

This invention discloses a snapshot rollback verification method, apparatus, and distributed file system, relating to the field of file system management. When a control instruction is received indicating the creation of a snapshot copy of a file to be modified in the source volume, the data body of the file to be modified is copied to the corresponding target storage area in the snapshot volume. Considering the possibility of malfunctions during the copying process leading to errors in the copying result, a preset verification digest generation algorithm is designed, and the same data is assumed to produce the same result under this algorithm, serving as the basis for consistency verification. Specifically, a first unique verification identifier corresponding to the copy data is determined; a second unique verification identifier corresponding to the data body is determined; and it is determined whether the first and second unique verification identifiers are the same. If they are, it indicates that the data body and the copy data are consistent, confirming that the copy data has passed the consistency verification and the data copying is successful, facilitating subsequent data rollback and further improving the reliability of the distributed file system.

A system and method for converting and copying a virtual disk image between provider-specific computing resources is provided. The method includes receiving a request to copy a virtual disk image from a source to a destination, and converting the virtual disk image from a source format to a destination format while copying. The conversion process involves predicting locations of data blocks within the virtual disk image based on structural characteristics of the source format without accessing metadata at the end of the image. Data blocks are decoded from the source format to a raw format while streaming from the source, based on the predicted locations. The data blocks are then encoded from the raw format to the destination format while streaming to the destination. This method enables efficient conversion and transfer of virtual disk images between different provider-specific computing resources.

The present disclosure provides a folder replication method, relates to the technical field of data processing, and particularly relates to a folder replication device, an electronic device and a storage medium. A specific implementation scheme is as follows: in response to a folder replication request, a folder replication task is created; a target folder corresponding to the source folder is created at a target position matched with the folder replication request, and a pointing relationship from the target folder to the source folder is created on the target folder, the pointing relationship being used to point the operation of a user on the target folder to the source folder; the folder replication task is executed to copy the files in the source folder into the target folder, and after the copying is completed, the pointing relationship is cancelled. The present disclosure can guarantee the availability of files in the copying process and avoid the occupation of files in the copying process.

Aspects of the disclosure are directed to memory mirror sequencing for memory patching. In accordance with one aspect, the disclosure includes initializing a memory mirror sequence (MMS) controller for a plurality of parallel read only memory (ROM) to random access memory (RAM) copy operations for a random access memory (RAM) wherein the MMS controller includes one or more parallelization parameters; triggering a parallel ROM to RAM copy procedure using the MMS controller with the one or more parallelization parameters; and executing a memory patching process to update one or more selected contents of the RAM for an updated built-in self-test (BIST) test pattern.

A terminal version upgrade control method, device, equipment and readable storage medium, relating to the field of PON terminal upgrade, including: when a service board in an OLT receives a mirror copy instruction issued by a main control board, establishing an association mapping relationship between a source ONU and a destination ONU based on the mirror copy instruction, wherein the source ONU stores a target upgrade mirror version; controlling the source ONU to start a mirror copy process so that the source ONU generates an OMCI message, the OMCI message including a first field for identifying the transmission direction of the OMCI message; when the OMCI message is received and the transmission direction of the OMCI message is determined to be ONU based on the first field, forwarding the OMCI message to the destination ONU based on the association mapping relationship, so that the destination ONU can realize an upgrade interaction of the target upgrade mirror version with the source ONU based on the OMCI message. Through this application, the normal upgrade of the ONU terminal version in the PON system can be effectively achieved.

A management system shortens the length of time required for data copy while reducing its effects on other processes. The management system manages a storage system including a plurality of nodes. The management system references data copy information, application information, and volume information to identify a target node offering a target volume for a data copy process. The management system determines an available input / output performance value of the target node on the basis of node performance information and monitoring information. The management system determines an upper input / output performance limit of the data copy process on the basis of the available input / output performance value of the target node.

The invention provides a deletion operation synchronization method and device, equipment and a medium, and relates to the technical field of storage technology and data synchronization, in particular to the field of financial science and technology. The synchronization method comprises the steps that a deletion instruction is responded, a file index is searched, a file system index and a first block index are modified, and the first block index points to an index area of a file system; acquiring the data modification amount of the first block index; in response to the fact that the data modification amount of the first block index is larger than or equal to a preset threshold value, deleting operation in the file storage asynchronous copying process is synchronously achieved based on the instruction.

The invention provides a double-buffer data communication method, which comprises the following steps of: receiving data blocks from data sending equipment, and verifying each received data block; and based on the verification result, feeding back control information to the data sending device so as to manage retransmission of the data block or switching of the communication channel, storing the data blocks which are verified to be correct into a receiving buffer area, and updating the state of a receiving mark based on the integrity of the data blocks in the receiving buffer area; controlling a process of copying the data in the receiving buffer area to the transmitting buffer area based on the cooperative state of the receiving mark and the transmitting mark; sending the data blocks in the sending buffer area to data receiving equipment; and processing feedback information from the data receiving device to manage retransmission of data blocks or switching of communication channels to the device. According to the communication method provided by the invention, high-reliability and conflict-free continuous data communication is realized.