56 results about "Copying Processes" patented technology

The invention provides an optimization method and device for a copy-on-write mechanism of a file system.The method comprises the steps that when the copy-on-write mechanism of an OverlayFS file system is triggered for a first file, a second file is created on a newly-added uperopt layer, and the OverlayFS file system comprises a first file, a second file is created on a newly-added uperopt layer; the method comprises the following steps: storing a first file in a cloud server, a lower layer, an upper layer, a merge layer and an upper layer, setting a mounting directory of application data on the storage server on the cloud server as the lower layer, setting a specified directory in a container on the cloud server as the upper layer, setting a directory actually accessed by an application in the container as the merge layer, and setting the first file as a file of the lower layer; and the operation of the application on the first file is recorded in the second file, so that the time consumption of the copy-on-write process of the OverlayFS file system can be reduced.

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 discloses a data transfer method based on a distributed asynchronous architecture, and the data transfer method based on the distributed asynchronous architecture comprises the following steps: S1, building a plurality of computer nodes; s2, when a source node transfers to a target node, monitoring data consistency by using a machine learning model, and detecting an abnormal mode and a potential data error; s3, fragmenting the data needing to be transferred, creating a copy in the source node, starting an asynchronous copying process, and copying the data from the source node to a target node; and S4, after the data transfer is completed, verifying the data in the target node, and ensuring the integrity and consistency of the data again. Through the asynchronous communication and monitoring system, the efficiency and reliability of data transfer are improved, the data consistency is monitored through the machine learning model, the exception detection and error correction capabilities in the data transfer process are enhanced, and the integrity and consistency of the data are 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.

Techniques for synchronous replication-based cutover are provided. An asynchronous replication process is executed to perform asynchronous incremental transfer of data of a storage object from a first computing environment to a replicated storage object at a second computing environment until cutover criteria are met. The synchronous replication process is executed based on the cutover criteria being met to synchronously replicate operations targeting the storage object to the replicated storage object. The cutover is performed based on the synchronous replication process reaching a stable state of synchronous replication for child objects of the storage object to direct operations from targeting the storage object to targeting the replicated storage object, wherein the operations are submitted to both the storage object and the replicated storage object.

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.

One example method includes, at a replication data source, initiating a replication process that includes transmitting a replication stream to a replication destination vault, and data in the replication stream is transmitted by way of a closed airgap between the replication data source and the replication destination vault, switching, by the replication data source, from a transmit mode to a receive mode, receiving, at the replication data source, a first checksum of a file, and the first checksum and file were created at the replication destination vault, receiving, at the replication data source, the file, calculating, at the replication data source, a second checksum of the file, and when the second checksum matches the first checksum, ending the replication 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.

An information handling system may include a processor; a network interface; and a physical storage resource having data stored thereon that is usable by a virtual resource that is executable on the processor. The network interface may accelerate migration of the data to a destination system by, in response to a command from a virtual machine manager: offloading, from the processor, a copying process configured to copy the data to the destination system; tracking portions of the data that are changed by the virtual resource during the copying process; notifying the virtual machine manager that a designated checkpoint has been reached in the copying process; causing the virtual resource to pause; completing the copying process; and causing the virtual resource to resume and use the copied data at the destination instead of the data on the physical storage resource.

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.

A method of evaluating a subject's visuospatial ability includes: displaying an original drawing on a screen; receiving input on the screen from a stylus, corresponding to a reproduction of the drawing by the subject; during the receiving step, collecting metadata regarding the process of the reproduction; comparing a resemblance of the reproduction to the original drawing; evaluating the reproduction and the metadata to infer therefrom the subject's understanding of the drawing; and issuing a combined evaluation of the subject's gestalt understanding of the drawing based on a combination of the resemblance comparison and the metadata evaluation.

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

Disclosed herein are various embodiments a replication management system. An embodiment operates by identifying that code of a replication program includes an update. A source table is selected and corresponding expected table is determined, the expected table including data from the source table as it would appear at the new location as a result of a successful replication process. The code of the replication program including the update is executed against the data of the source table to generate a runtime table. A hash of the expected table is compared to a hash of the runtime table to determine whether the replication process using the code of the replication program including the update was successful. A report including the determination is provided.

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.

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 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.