200 results about "SequenceNumber" patented technology

The invention provides a log data reading method and device, equipment, a medium and a program product, and relates to the field of big data. Obtaining a mapping relationship between a plurality of timeline identifiers in a database and corresponding start log serial numbers; the timeline identifier is an identifier generated when the main database and the standby database are switched, whether the log data cross different timeline identifiers or not is judged according to the mapping relation and the starting log serial number and the ending log serial number of the log data, and under the condition that the log data cross different timeline identifiers, the log data cross different timeline identifiers. Reconstructing a log reading process according to a start log serial number of a new timeline identifier, wherein the new timeline identifier is different from the plurality of timeline identifiers; according to the method, automatic reconstruction of the log reading process after main and standby switching is achieved, the problems of low efficiency and poor real-time performance caused by manual operation are avoided, and continuity and consistency of data synchronization of the source end and the target end are guaranteed.

The invention discloses a dual-channel adaptive network stability testing method and system, and belongs to the technical field of computer network testing. The system adopts a dual-channel asynchronous communication architecture in which a control channel and a data channel are physically separated, instructions and state information are transmitted through an independent TCP control channel, and high-speed test data streams are transmitted through a UDP or TCP data channel. The method comprises the following steps: dynamically and adaptively adjusting a timeout parameter based on real-time network delay detection; nanosecond constant interval packet sending control is realized by using a high-precision monotonic clock source and busy waiting compensation mechanism; a packet loss detection, positioning and ACK confirmation mechanism based on the serial number is realized in an application layer; and real-time statistical display and idle detection automatic termination are realized through multi-thread parallel processing. According to the invention, the precision, the stability and the adaptive capability of network testing are remarkably improved, and the method is suitable for long-time stability testing in various scenes such as a high-speed Ethernet, a satellite link, an industrial Internet of Things gateway and the like.

The invention provides an end-to-end reliable retransmission method, a computing node and a system for an AI intelligent computing network. The method comprises the following steps: a source end and a destination end establish synchronization through a handshake mechanism; the source end sends a data packet to the destination end, and locally caches the sent data packet; the destination end receives the data packet, compares the serial number of the data packet with the expected serial number of local maintenance, and returns an acknowledgement message or a retransmission request to the source end according to a comparison result, and the acknowledgement message carries the current expected serial number; in response to the confirmation message, the source end releases all the data packets of which the serial numbers are smaller than the expected serial number carried by the confirmation message in the local cache; or, in response to the retransmission request or transmission timeout, acquiring the corresponding data packet from the local cache for retransmission; and after the source end sends the last data packet, if the confirmation message is not received within the preset time, actively sending a state query request to the destination end to obtain the receiving state of the last data packet.

A method, computer program product, and computing system for processing a plurality of packets transmitted from a first computing device to a second computing device. A packet sequence number associated with each packet is identified. An error-detecting code representation is generated using the packet sequence number of each packet. A packet that is missing from the plurality of packets is identified. A packet loss pattern associated with the plurality of packets is identified by comparing the error-detecting code representation with a plurality of entries of a high probability loss pattern memory table.

The invention belongs to the field of computer networks, data compression and mobile internet and wireless communication, and discloses a TCP (Transmission Control Protocol) data packet compression and aggregation self-adaption method, which comprises the following steps of: 1, receiving a TCP data packet and separating a header from a payload; step 2, storing the effective load part; step 3, compressing the head and updating context data according to the serial number, the confirmation number, the mark and the window size field of the head; step 4, combining the compressed header with the effective load to obtain a compressed message; 5, extracting the compressed messages according to a set aggregation threshold value, aggregating the compressed messages, and sending the aggregated compressed messages to a data link layer; and step 6, storing the operation records, comparing the operation records with the previous N operation records, and changing a set aggregation threshold according to a comparison result. According to the invention, the message can be efficiently processed under the condition of a complex network, so that the overall network throughput and the message processing efficiency are improved.

The invention belongs to the technical field of computer network communication, and provides an RDMA-oriented reliable connection fault rapid recovery method and system, the method is executed by a first communication end, communication is established between the first communication end and a second communication end through a queue pair QP, and the queue pair QP is used for bearing service data transmission. The first communication end reserves resources after the QP enters an error state, and sends a PROBE control frame to the opposite end through the control plane queue pair; the second communication end decides to reuse the original QP or allocate a new QP (reuse an original protection domain, a memory registration area and a completion queue) according to the local QP state, and returns a QP number and a start packet serial number in an RESP frame; and the first communication end updates the local QP context and drives the state machine to switch to a ready sending state. The whole process does not need to destroy the QP and does not depend on CM handshake, the recovery time delay is less than 0.5 millisecond, and the method is transparent to the upper layer application and is suitable for the RoCE v2 network environment.

In a computing network implementing an adaptive load balancing scheme using entropy values (EVs) to select network paths, the next expected packet sequence numbers (PSNs) sent along different paths are tracked. A generation number is increased to obtain a new EV and a last probe packet is sent to clear an old EV. If a starting PSN is divisible by a number k, an entropy slot is derived for each PSN using a modulo function based on k.

This application relates to the field of smart terminal technology and provides a method, system, apparatus, terminal device, and storage medium for multi-user collaborative editing. The method includes: immediately executing the operation instruction when a user's operation instruction is detected and updating the execution result to a local transient state; sending the operation instruction to a server, where the server performs conflict detection on the operation instruction, assigns a sequence number to the operation instruction, generates a pre-ordered operation instruction set, and updates the global baseline state; receiving the pre-ordered operation instruction set broadcast by the server; comparing the local transient state with the global baseline state based on the pre-ordered operation instruction set, and if there is a state difference, changing the local transient state to make it consistent with the global baseline state, and updating the consistent local transient state to the local baseline state. This application can efficiently and reliably achieve eventual consistency of the states of each client, improving the smoothness and efficiency of multi-user collaborative editing.

Systems and methods are directed to seamless failback after an unplanned failover. The method involves executing a truncate-and-restore command on a primary topic of a primary cluster, performing checks on a secondary topic to ensure it is a mirror topic in a stopped state with valid identifiers and offsets, and transitioning the primary topic to immutable state. The method further includes comparing sequence numbers to ensure safe truncation, truncating partitions to match the secondary topic's log end offsets, and clamping consumer group offsets. The primary topic is then converted to a mirror state, enabling active mirroring. A reverse command is then executed to complete the failback process, restoring the primary topic to a writable state.

The application provides a database replication method and system, the method comprises the following steps: responding to a binary change log and performing analysis, extracting an initial log source sequence number, a timestamp and an associated partition identifier, and then obtaining a database partition preset sequence number; if the two sequence numbers are not continuous, the timestamp is valid, and the initial log source sequence number satisfies a preset first condition, a new independent numerical range is created and a target missing sequence number interval is identified; a data generation log supplement signal is generated based on the above data and sent to a producer cluster, so that the producer cluster feeds back a missing sequence log; based on the independent numerical range and the database partition preset sequence number, a database partition first sequence number is obtained, and the replication of the database is completed. The database replication method provided by the application avoids the problems of repeated data insertion and missing log omission supplement, realizes efficient consistent replication of the database, and guarantees the stability and reliability of the database replication in a multi-cluster scenario.

A system and method for reconciling data from a local database streamed to a Cloud storage service is disclosed. A data transaction is received from a structured query language (SQL) database service operated by a server. The transaction includes log sequence numbers and corresponding data records. The log sequence numbers are stored in a change data capture (CDC) table. The sent data transaction is streamed via a data integration service. A storage object service stores the sent data into an object storage service bucket. A data reconciliation service deploys a cloud trail target to generate a log file of log sequence numbers from the sent data stored in the object storage service bucket. The log file of log sequence numbers is compared with the log sequence numbers in the CDC table. A missing data record is flagged to an exception table based on the comparison. An alert is issued for the missing data record.

An accelerator device and system are described, among other things. An illustrative system is disclosed to include a first sequencer programmed to append packets with information identifying a sequence number and an identification of a flow with which each packet is associated. The appended information may be used by a second sequencer to resequence the packets.

This application discloses a data management system and method for breeding cricket parents, relating to the fields of database and breeding information technology. The method mainly includes: in response to a new individual, generating a temporal coordination site code containing generation, batch, pedigree, and sequence number according to preset bitwise operation rules; storing this code as a database primary key associated with the individual's basic information to form a uniquely identified data record; in response to a pedigree query request, extracting the target parent code as a query prefix; performing a string prefix matching query in the database based on this prefix, retrieving and returning data of all individuals whose codes begin with this prefix, thereby completing the traversal of all offspring of the target parent. This invention, through coding rules and database queries, transforms complex pedigree recursive queries into efficient prefix matching operations, solving the problems of low pedigree tracing efficiency and difficulty in multi-dimensional data association in traditional breeding data management, and improving data retrieval speed and breeding analysis efficiency.

The invention relates to the field of software activation, in particular to a segmented software authorization method based on a pre-distributed service serial number, which comprises the following steps: generating a service serial number and a complete activation key for each piece of software to be authorized, and splitting the complete activation key into a first key segment and a second key segment; pre-writing the service serial number and the first key segment into a specified path of a target computer operating system; an activation client on the target computer operating system reads the locally stored service serial number and the first key segment; obtaining a second key segment in response to user input; the activation client restores a complete activation key based on the combination of the first key segment and the second key segment; and performing verification based on the complete activation key and the service serial number. Through the scheme, the beforehand refined management of software authorization is realized, the key leakage risk is reduced, and convenient activation experience is provided on the premise of ensuring the security.

This invention discloses an intelligent retransmission method and system based on Redis caching, as well as a computer-readable storage medium. The method includes: calculating the execution time of a scenario, wherein the scenario includes one or more device execution queues, each scenario is contained in a project, and each project contains one or more scenarios; when executing a scenario, the device serial number and scenario calculation time within the scenario are stored in a Redis cache, the scenario project ID is locked, a detection thread is started to sleep on the scenario execution time, and after the detection thread finishes sleeping, the cache is queried sequentially according to the scenario devices. If the cache still contains the information, it indicates that the device execution has failed, and the device is added to the second-round instruction sending list; a second-round instruction is issued according to the devices in the list, and the project ID of the current scenario is unlocked simultaneously. This invention can reduce server load and improve instruction execution efficiency and device control success rate.

The invention discloses a unique identifier generation method and system for a satellite remote control instruction, and belongs to the field of aerospace craft measurement and control communication. The method comprises the following steps: pre-configuring the same seed value at a satellite end and a ground end; when the ground end generates any remote control instruction, a specified deterministic UUID generation algorithm is adopted, and a unique identifier is generated according to the seed value and the serial number of the remote control instruction; after the satellite end receives the remote control instruction and analyzes a remote control sequence counter, a deterministic UUID generation algorithm which is the same as that of the ground end is adopted, and a unique identifier is generated according to the same seed value and the serial number of the remote control instruction; and cross-system full-process association is realized through the unique identifier between the ground end and the satellite end. According to the method, no link bandwidth overhead is increased, SHA / MD5 / HMAC calculation can be completed by occupying tiny calculation resources, and the requirements for high reliability and high consistency of spaceflight are met.

The application discloses a satellite remote control instruction unique identification generation method and system, and belongs to the field of space flight vehicle measurement and control communication.The method comprises the following steps: configuring the same seed value in advance at the satellite end and the ground end; when generating any remote control instruction, the ground end generates a unique identification according to the seed value and the serial number of the remote control instruction by using a specified deterministic UUID generation algorithm; after receiving the remote control instruction and analyzing the remote control sequence counter, the satellite end generates a unique identification according to the same seed value and the serial number of the remote control instruction by using the same deterministic UUID generation algorithm as the ground end; and the unique identification between the ground end and the satellite end is used to realize cross-system full-process association.The application does not increase any link bandwidth cost, can complete SHA / MD5 / HMAC calculation by occupying a small amount of computing resources, and meets the requirements of high reliability and high consistency in spaceflight.

This application discloses an enhanced RLC AM mode reliable transmission method and apparatus for base stations and repeaters, comprising: responding to a data transmission command, determining the number of sequence numbers (SNs) within a transmission window, wherein the SNs within the transmission window are the SNs of Service Data Units (SDNs) that have been transmitted but have not received acknowledgment; determining whether the number of SNs has reached a preset threshold, which is less than the window length; if the number of SNs has reached the preset threshold, actively transmitting the first PDU (Programmable Dedicated Unit) within the transmission window that has not received a positive acknowledgment (ACK) to the UE using an enhanced strategy, wherein the PDU includes multiple SDUs; and, if a reception failure is determined based on a status report fed back by the user terminal UE, restarting the base station or notifying higher layers to stop transmitting SDUs. This solves the problem that existing methods cannot delete data cached in memory when the transmission window is blocked, and because higher layers continuously send data to the cache, the base station eventually crashes due to memory exhaustion.

The embodiment of the present application provides a data processing method, an RLC state report triggering and receiving method. The method comprises the following steps: in the case that the RLC sequence number is associated with a packet data convergence protocol (PDCP) sequence number, initializing and setting a variable of an RLC layer sending end according to a variable of a PDCP sending end. Through the embodiment of the present application, the problem that the existing RLC variable initialization method in the related art can cause discontinuous data transmission or low data transmission efficiency is solved, and the effect of improving data transmission efficiency is achieved.

The invention discloses a serial number distribution method and device, equipment and a storage medium, and relates to the technical field of big data. The method comprises the following steps: responding to a serial number acquisition request of a request end, applying for a number segment from a pre-configured serial number database according to the serial number acquisition request, and storing the applied number segment into a main number segment cache region; if it is determined that the main number segment cache region meets a cache region replacement condition according to the serial number consumption rate of the main number segment cache region, asynchronously starting a standby number segment cache region; if it is determined that the serial number use condition meets a switching condition according to the serial number use condition of the main number segment cache region, switching the standby number segment cache region to the main number segment cache region; and distributing a serial number for the request end in the main number segment cache region by adopting an atomic incremental operation. According to the scheme, the serial number is distributed to the request end by asynchronously preloading the new number segment and switching the cache region, so that the continuity and availability of serial number distribution are improved.

The application discloses a message processing method, a first device, a second device, a third device, a storage medium and a computer program product. The method comprises the following steps: a first device determines first information corresponding to a first data stream, wherein the first information is used for indicating the number of one or more candidate paths corresponding to the first data stream, and the first data stream comprises a plurality of first messages; a plurality of second messages are generated by using the first information and the plurality of first messages, wherein each second message comprises at least second information, the second information is used for indicating a transmission path corresponding to the second message, and the second information is associated with a sequence number of a first message corresponding to the second message in the first data stream; and the plurality of second messages are sent out.

The invention relates to a real-time streaming data cleaning and anomaly detection method. The method comprises the following steps: assigning a timestamp and a serial number to input streaming data, and writing the input streaming data into a temporary storage domain to form a preset duration playback fragment; performing consistency and time sequence legality check on the temporarily stored data, generating an abnormal evidence set, marking the abnormal evidence set as an abnormal candidate if a trigger condition is met, and recording the evidence; generating an anti-certification condition according to the evidence, opening an anti-certification window for the abnormal candidate, and verifying the anti-certification condition by using a subsequent associated fragment; if the anti-certification condition is met in the anti-certification window, the abnormal candidates are revoked and serve as submitted cleaning data to be migrated to a submission domain to be output; and if the condition is not met and overtime occurs, determining abnormity and outputting the abnormity to an abnormal channel, and keeping evidence and a verification result. The risk of misjudgment and miskilling caused by data disorder, jitter or instantaneous inconsistency is effectively reduced, repeated revocation and re-judgment of abnormal candidates in an anti-verification window are avoided, and the interpretability, traceability and engineering controllability of data cleaning and anomaly detection results are improved.

The application discloses a kind of HTTP text restoration methods based on DPDK, it is related to computer network technical field, the method uses multi-process decoupling architecture, and traffic acquisition and protocol analysis, fragmentation reorganization and text restoration, formatted message splicing, text restoration timeout and the like process are respectively operated in independent CPU core, efficient, lock-free data transmission is carried out using the ring mechanism of DPDK.Different from traditional memory splicing scheme, the application calculates data offset based on TCP sequence number, and directly writes the load content into the corresponding position of the file, effectively solves the problems of message out-of-order, packet loss and retransmission, etc., adopts the atomic renaming mechanism from fileID1 (intermediate state) to fileID2 (completed state), to ensure the accurate migration of file state.In addition, the application innovatively proposes a bidirectional asynchronous scheduling mechanism based on data export and text restoration state monitoring, which enables the data export process to maintain high throughput continuously and ensures the overall processing capacity of the system.

The invention discloses a serial number generation method and device, equipment, a storage medium and a product, and relates to the technical field of big data, mobile internet and data processing. The method comprises the following steps: acquiring a geographic area identifier and a transmission scene identifier in response to a data transmission request; determining a database identifier according to the corresponding relationship; determining a data table identifier and serial number adjustment data corresponding to the transmission scene identifier according to the configuration file; a serial number generation request carrying the information is sent to a database server corresponding to the database identifier, so that the database server searches a data record corresponding to the geographic area identifier from a corresponding data table in a database, and a target serial number value is generated according to the serial number adjustment data and an original serial number value in the data record; and the target serial number value returned by the database server is received, and the response message is sent to the front-end equipment based on the value, so that the data storage management efficiency and the serial number generation flexibility, expandability and stability are improved.

The invention relates to the technical field of avionics networks, and discloses a TSN redundant frame filtering method and system based on an IEEE802.1 CB protocol, and the method comprises the steps: receiving a data frame through an MAC layer of an end system, and extracting a destination MAC address and a source MAC address of the data frame; constructing an address two-tuple by using the destination MAC address and the source MAC address, and performing matching query in a pre-configured flow table by adopting a binary search algorithm to obtain a flow identifier corresponding to the address two-tuple; searching data stream state information bound with the stream identifier, wherein the data stream state information comprises a currently received maximum frame sequence number and historical window information for recording a historical frame receiving state; comparing the serial number of the data frame with the maximum frame serial number; according to the comparison result and the historical window information, corresponding data frame receiving or filtering operation is executed, and the problems that the flow identification query efficiency is low, and the out-of-order redundant frame processing logic is not accurate are solved.

The invention relates to a data message transmission method and device, a proxy server, network equipment, a computer readable storage medium and a computer program product. The method comprises the following steps: acquiring a serial number of a data message to be sent; under the condition that the serial number of the data message to be sent is the same as the expected serial number of an ordered queue, the data message to be sent is stored in the ordered queue, and the ordered queue is used for storing the data message to be sent according to the sequence of the serial number; updating the expected serial number of the ordered queue; and carrying out data message transmission based on the ordered queue. By adopting the method, the complexity can be reduced, and the flexibility is improved.

Ensuring exactly once data ingestion, the method comprising: receiving, from an event stream, event data comprising a plurality of first records; generating a plurality of second records each corresponding to a first record of the plurality of first records and comprising a log sequence number (LSN) describing a location in the event stream for a corresponding first record; and sending, to a data warehouse, the plurality of second records.

This application relates to a fault-tolerant data security aggregation method, apparatus, and computer device. The method includes: an aggregator generating and broadcasting public system parameters based on a high-performance elliptic curve cryptography system; collecting public keys from each participant to generate a global public key set and broadcasting it; each participant negotiating a shared session key with the other participants based on their own private key and the global public key set; generating mask data with global XOR cancellation properties through a pseudo-random function XOR operation; filling the original data into the corresponding anonymous sequence number array positions, filling the rest with zeros, and XORing it with the mask to generate an encrypted vector, which is then uploaded; the aggregator XORing all encrypted vectors bit-by-bit to cancel the mask and restore the plaintext set; if some participants time out and disconnect, the aggregator broadcasts a disconnection list, collects the mask recovery shares of online participants to generate a residual mask, and cancels it to restore the plaintext set of online participants. This method can improve data aggregation efficiency and system robustness.

The application belongs to the technical field of data processing, and provides a new energy station time sequence data access system and method, and the technical scheme is as follows: message data directly sent and forwarded by new energy stations of different sources is acquired; the parsed message data is converted into an adaptive data file, and the measurement points in the adaptive data file are respectively labeled with index labels and unconfigured labels according to a pre-configured measurement point table, an index table and a measurement point index relationship table, and then are packaged; a time sequence library serial number is determined according to a sequence number corresponding to a station code, address information of the time sequence library is found in a time sequence information table; and the data after adaptive processing is written into the corresponding time sequence information table according to the found address information of the time sequence library. The application supports the expansion of the time sequence database, solves the assimilation processing of heterogeneous data sources, reduces the maintenance cost in the later stage, and finally solves the problem of redundant data storage.

The embodiment of the invention relates to a data generation method and device, equipment and a medium. The method comprises the steps of obtaining to-be-processed first data; determining a first serial number corresponding to the first data based on a target codebook corresponding to the target language model; the first serial number comprises a serial number of a discrete feature corresponding to the first data in the target codebook; the target codebook comprises a plurality of discrete features, and the plurality of discrete features comprise a plurality of text features and a plurality of image features; based on the first serial number, utilizing a target language model to generate a second serial number; the second serial number comprises a serial number of a discrete feature corresponding to second data to be generated in the target codebook; second data is generated based on the second serial number. According to the embodiment of the invention, flexible processing of various modal data can be realized by means of the same target language model based on the same codebook, the required cost is relatively low, and the convenience of data generation is improved.