118 results about "Cache server" patented technology

The invention relates to the field of data processing, in particular to a distributed flow limiting method and device, equipment and a medium, which are used for realizing distributed flow limiting control on a service request. The method comprises the following steps: receiving business requests of business servers connected with a cache server, and clustering the business requests based on multi-dimensional object information of the business requests to obtain request clusters; aiming at each request cluster, respectively executing the following steps: sorting the service requests in the request cluster to obtain a request sequence; aiming at each service request in the request sequence, sequentially executing the following steps: acquiring the count of a counter corresponding to the multi-dimensional object information of the service request, comparing the count with a first quantity threshold value, and judging whether the count is updated or not based on a first comparison result; and sending the first comparison result to a service server corresponding to the service request to enable the service server to analyze the first comparison result, and if a return value in an analysis result is a first set value, performing flow limiting processing on the service request.

The invention discloses a distributed data preloading and querying method and device and a storage medium. The method comprises the steps of searching data corresponding to a query key in a cache region integrated by an application server; if the query result of the query key is hit in the cache region, returning the query result; if the query result of the query key is not hit in the cache region, determining whether a target query key which is the same as the query key exists in the executed database query; and if the target query key does not exist, initiating a query request based on the query key to the database, and storing a query result returned by the database into a cache region integrated by the application server to respond to the query of the same query key. According to the method and the device, the cache is integrated in the application server, the resource overhead of an independent cache server is eliminated, the concurrent query when the cache is missed is merged and processed, and the concurrency is changed into single query, so that the repeated request pressure of the database is reduced fundamentally, and the risk of cache breakdown is effectively prevented.

The invention provides systems, methods and computer program products for executing remote application iteration(s) of client application software on a remote server platform, and for enabling each remote application iteration of a client application software to have access to a corresponding instance of an application software environment that has access to all data objects necessary for execution of such remote application iteration. The invention enables execution of a remote application iteration of a client software application at a remote server platform, through need-based or dynamic retrieval of data objects from an on-premise device for appropriately provisioning the remote server platform to execute the remote iteration of the client software application. The invention additionally relates to optimizing dynamic retrieval of data objects from a computing device / on-premise device through cache device(s) or cache server(s).

The invention discloses an instruction interaction method and system for intelligent equipment, and the method comprises the steps: a platform issues batch instructions to an instruction cache server, and waits for the intelligent equipment to be connected with an MQTT server; after the first intelligent equipment is connected with the MQTT server, the MQTT server informs an instruction cache server and a platform of a first connection result; the instruction cache server issues an instruction to the MQTT server according to the priority, the MQTT server forwards the instruction to the first intelligent device, the first intelligent device executes the instruction sent by the MQTT server and sends an execution result to the MQTT server, and the MQTT server forwards the execution result to the instruction cache server; the second intelligent device is connected with the MQTT server, the MQTT server informs the instruction cache server and the platform of a second connection result, and the instruction cache server issues instructions to the MQTT server according to the priority until all the instructions are sent. The method can guarantee that the instruction is not lost, does not need to maintain long connection, can reduce the power consumption of equipment, and prolongs the service life of a battery.

The present invention relates to the technical field of data service cloud platforms, and specifically provides a comprehensive management system for an Internet-based data service cloud platform, including: a data cleaning and classification module, a load balancing module, a cache server, a server group, a mirror backup module, a disaster recovery module, and a visualization operation and maintenance module. By cleaning and classifying data, the huge data stream is diverted, and the smooth weighted round-robin algorithm is used to perform secondary diversion on the huge data stream. The sub-data stream is preferentially allocated to the servers with good load conditions, and the data of the server group of other data service cloud platforms is backed up. Sensors are used to judge whether a disaster signal is sent to improve the backup efficiency. At the same time, the overall load condition of the data service cloud platform is visualized, and the real-time data service ability is optimized based on the underlying architecture of the data center, providing an interface service integrating visualization, multi-services, and panoramic operation.

The present application discloses a method, device, and electronic device for reading disk data. The method and device are applied to a distributed file system. Specifically, when a cache server stores a file required by a user, at least one historical request time delay of the cache server is obtained; and based on the historical request time delay, the file is read from the cache server, or from the cache server and the disk server. That is, the file is read from the cache server first. In this way, the number of times and time the disk server is read can be reduced, thereby effectively reducing the reading task and avoiding a negative impact on the service life of the mechanical disk in the disk server and the security of its data.

The present application provides a data processing method, apparatus, device, and storage medium based on cache coherence. Applied to an application server, the method includes: receiving a data write request sent by a client, the data write request including data to be operated on; deleting the cache data corresponding to the data to be operated on in the cache server, and determining whether a first flag bit corresponding to the data to be operated on in the Zookeeper server has been modified, the first flag bit being used to identify whether the data to be operated on is in the process of being written; if the first flag bit has not been modified, modifying the first flag bit and a second flag bit corresponding to the data to be operated on in the application server, and writing the data to be operated on into the main database, and using the main database to synchronize the data to be operated on to the slave database of the database server; if the first flag bit has been modified, blocking the data write request. By setting the first flag bit and the second flag bit to process the data write request, the consistency between the database and the cache is ensured.

The present application relates to a resource request processing method, apparatus, computer equipment, computer-readable storage medium, and computer program product. The method is applied to the first cache server in the cluster, and the method includes: in response to receiving a resource request forwarded by a gateway, extracting the first identification information of the resource carried by the resource request, and updating the request load data corresponding to the first identification information; when the request load data is greater than a preset threshold, determining the resource as a hotspot resource, and adding second identification information to the resource request; sending the hotspot resource to the second cache server other than the first cache server in the cluster, and returning the resource request carrying the second identification information to the gateway, so that the gateway forwards the resource request to the second cache server for processing based on the second identification information. The use of this method can improve the access quality of CDN services.

The invention discloses a real-time interaction method and system for a PCB layout multi-person online platform, and the method comprises the steps: receiving the identification information of a PCB design drawing, the operation information of the PCB design drawing, and the interaction information, which are transmitted by a first user side through corresponding identity identification information; searching user information of a second user side in a cache server according to the identification information of the PCB design drawing; according to the user information of the second user side and the corresponding identity identification information, operation information and interaction information of the PCB design drawing are sent to the second user side, so that the second user side executes corresponding operation on the PCB design drawing according to the operation information of the PCB design drawing, and the second user side displays the interaction information in an information interaction frame. According to the method and the device, online real-time interaction of different users about the PCB layout can be realized, the different users do not need to carry out interaction in manners of messages or calls and the like privately, and communication of the different users about the PCB layout can be recorded and traced.

The invention provides a data processing method and system, and relates to the technical field of data processing, and the data processing method comprises the steps: obtaining a network exception time period of a domain name system (DNS); obtaining domain name query information in the network abnormal time period, and determining a white list domain name based on the domain name query information; reading the TTL (Transistor-Transistor Logic) of the white list domain names from the cache server, and grouping the white list domain names in the cache server according to the TTL to obtain one or more groups corresponding to the white list domain names; and in response to the TTL of the group meeting the updating condition, sending an updating request to the recursive server to obtain the latest address information of the white list domain name in the group, and sending the latest address information to the cache server corresponding to the group to update the address information, the technical problem of link congestion caused by simultaneous iterative query of the same domain name in the prior art is solved, and the utilization rate of the server is improved.

The present invention relates to a method, device, electronic device and medium for detecting Web cache poisoning vulnerabilities. The method comprises: obtaining a cache key of a Web cache server; generating a standard request to be verified based on the cache key of the Web cache server, and performing multiple mutation tests on the standard request to be verified to obtain multiple mutated attack requests; verifying the multiple mutated attack requests to obtain a verification result, and judging the verification result based on a preset authentication condition. If the verification result meets the preset authentication condition, the attack request is judged to be an exploitable poisoned request. Thus, by generating cache poisoning attack test cases covering various forms for different parts of the request, various types of cache poisoning attack vulnerabilities in the URL can be comprehensively and systematically detected, avoiding multiple potential cache poisoning attacks and new cache poisoning attacks, and helping security personnel to better detect and protect against cache poisoning attacks on their own websites.

The present disclosure relates to a method, a device, and a computer program for constructing a quantum cryptographic communication network. More specifically, the present disclosure provides a method for constructing, in a device, a quantum cryptographic communication network including multiple unit nodes which include multiple quantum cryptographic communication unit nodes, including application nodes and quantum key distribution nodes, and one or more relay unit nodes configured to relay between the quantum key distribution nodes, the method including: calculating, for one or more target unit nodes among the multiple unit nodes, a weight reflecting a quantum key demand at the target unit nodes according to communication between the application nodes among the multiple quantum cryptographic communication unit nodes; and selecting one or more unit nodes, which are to be provided with cache servers for the communication between the application nodes, from among the target unit nodes based on the calculated weight.

The embodiment of the invention discloses a front-end resource deployment method, device and system, a server and a storage medium, and relates to the field of computers.The method is applied to a file processor of an automatic deployment system and comprises the steps that a target resource deployment execution instruction sent by a server-side file transfer station in the automatic deployment system is received; the target resource deployment execution instruction is determined by the file transfer station according to a deployment execution mode in an original resource deployment execution instruction from a client server of the automatic deployment system; according to a target deployment execution mode corresponding to the target resource deployment execution instruction, obtaining a to-be-deployed resource; and pushing the to-be-deployed resources to a remote cache server of the automatic deployment system to realize front-end resource deployment. By adopting the technical scheme provided by the embodiment of the invention, the deployment of the front-end static resources can be conveniently and quickly realized.

The present disclosure provides a function verification method of a distributed system, relates to the technical field of distribution, and can be applied to the technical field of finance. The method is applied to a distributed application server, the application server provides a verification function interface, a configuration file in the application server is pre-configured with to-be-verified interface information, and the method comprises the following steps: in response to a function verification instruction of a distributed system, obtaining a full-service cluster name from the configuration file; according to the service cluster name, pulling all server IP port information under the service cluster from a cache server; assembling a complete uniform resource locator and upload parameters according to the to-be-verified interface information and the server IP port information; and performing function verification on the distributed system based on the to-be-verified interface information, the complete uniform resource locator and the upload parameters. The present disclosure also provides a function verification device of a distributed system, equipment, a storage medium and a program product.

The embodiment of the invention provides a data processing method and device, a storage medium and a program product. In the embodiment of the invention, the cache server is introduced, so that the dependence on the database is greatly reduced, and the response speed of receiving the coupons by the user is remarkably improved. Meanwhile, for different types of coupons, an independent time window cache region is set, so that the receiving limitation of each type of coupons can be independently set, the flexibility of the issuing strategy is enhanced, and diversified operation requirements are met. In addition, the cache server automatically clears no-needed data and recovers cache resources after the time window ends, so that the space utilization rate is improved, the storage cost is reduced, and efficient operation of the system is maintained. The cache server is combined with the execution server, safe and efficient coupon receiving service and data cache service are provided for an application platform, the query efficiency of receiving data and the efficiency and flexibility of coupon receiving are remarkably improved, and meanwhile the storage space of the execution server is saved.

The present application relates to the technical field of content delivery networks (CDNs), and provides a method and system for improving a cache hit rate of an edge CDN sink node. The method comprises: sink node cache servers each recording each URL request on the basis of a request sequence and saving same in a file; deploying an agent on each cache server to perform collection on the file, and collecting a compressed file every set time and uploading the compressed file to a central cache analysis service cluster; saving the number of access times of all URLs in a region, updating the access frequencies of the URLs in real time and sorting same, and screening for a most popular URL list; acquiring, from a database every set time, top N data records among data records that are sorted in a descending sequence on the basis of historical access times; using a CF to convert the top N data records into resource hotspot bitmap information, and issuing the resource hotspot bitmap information to each sink node cache server; and saving the resource hotspot bitmap information in a memory, and persisting the resource hotspot bitmap information in a magnetic disk.

The application discloses a data synchronization method, device, equipment, storage medium and product. The method comprises the following steps: receiving a first to-be-synchronized file list sent by a synchronization control server, wherein the first to-be-synchronized file list comprises a plurality of file information; selecting first file information from the plurality of file information; sending a first request carrying the first file information to a cache server; in the case that the synchronization state of the first file fed back based on the first request is that the first file is not synchronized by other synchronization servers except the first synchronization server among a plurality of synchronization servers, synchronizing the first file to a file server; in the case that the first file is successfully synchronized, returning to the step of selecting the first file information from the plurality of file information until the files corresponding to the plurality of file information are all synchronized to the file server. The application embodiment improves the synchronization efficiency of a large number of files.

The invention discloses a locomotive data automatic landing system and method based on the 5G millimeter wave technology. The method comprises a vehicle-mounted subsystem and a ground subsystem. The vehicle-mounted subsystem is arranged on a locomotive and comprises an audio and video data acquisition module, a security gateway, a high-speed buffer pool and a 5G vehicle-mounted terminal; the ground subsystem comprises a 5G ground base station, a ground cache server, a dump management platform and a data processing and storage center. When a locomotive enters a locomotive depot servicing yard area and / or a station area, a locomotive-ground wireless communication link based on a millimeter wave frequency band is established between the 5G vehicle-mounted terminal and the 5G ground base station, and data are sent to the ground subsystem through the locomotive-ground wireless communication link. By means of the 5G millimeter wave technology, high-capacity audio and video data and operation state data of the locomotive can be rapidly, automatically and reliably grounded, and the transmission efficiency of the locomotive-ground data and the overall safety, real-time performance and controllability of the system are improved.

The invention relates to the field of network communication, in particular to a content recommendation request processing method and device, electronic equipment and a storage medium. According to the method provided by the embodiment of the invention, whether the content recommendation request is the retry request is determined through the target request identifier, if the content recommendation request is the retry request, it is indicated that the client fails to obtain the recommended content before, and at the moment, the server can directly obtain the request identifier and the corresponding target recommended content from the cache; according to the process, the recommended content does not need to be pulled again through the recommendation service, it is guaranteed that the target client can obtain the effective and accurate recommended content in time, and the problem that the recommended content obtained again by the client after content obtaining fails is inaccurate is solved. And meanwhile, the recommended content is stored in the cache, so that the server can quickly retrieve the cache, and the overhead of frequently accessing the recommended service or repeatedly calculating the recommended content is avoided.

The present specification provides a data synchronization system and method, wherein the data synchronization system comprises: a database and a cache server configured by an information table associated with the database; the database is used to receive an update request submitted by a client for a database transaction processing task; in response to the update request, the initial data meeting the synchronization condition is filtered from the locally stored data and synchronized to the target cache of the cache server; the cache server is used to create a data filtering task for the initial data in the target cache; by executing the data filtering task, the target data is determined and deleted from the initial data stored in the target cache; the task execution result of the database transaction processing task is determined according to the deletion result, and the client is responded.

Embodiments of the present disclosure disclose a data caching control method, an electronic device, and a storage medium. The method includes: obtaining cache system information, and determining an application server, a plurality of first cache server clusters corresponding to the application server, and a plurality of second cache server clusters according to the cache system information; obtaining service type information of a target service corresponding to data caching by the application server and service characteristic information of the target service; obtaining a pre-trained cache configuration model, and using the service type information and the service characteristic information as inputs to input into the cache configuration model to obtain cache configuration information; and sending the cache configuration information to the application server. This technical solution can configure the order of cached data for the target service corresponding to data caching for reading, ensure a high efficiency of reading cached data, and improve the user experience.

The invention discloses an electric power communication method and system, and relates to the technical field of communication, data messages are cached through a cache server, unified message sending is performed through a communication server, the number of electric terminals directly interacting with a target server is reduced, the transmission pressure of the target server can be greatly reduced, and the transmission efficiency of the target server is improved. And the occurrence of network congestion is reduced. More importantly, by automatically selecting the cache server and the communication server, sharing of storage resources between the subnetworks is realized, and data messages in the network can be ensured to be normally sent to the target server, so that the reliability of data transmission is improved.

The present application provides a method and device for four-dimensional visualization of medical images, the medical image data is uploaded to the control module by the user via the client, the medical image data is analyzed and the analyzing result is fed back to the client by the control module, the medical image data is preprocessed by the storage server to form the cross-sectional tomographic images, dynamic three-dimensional image display is provided on the client by the processing module according to the cross-sectional tomographic images. The device comprises perception module, control module, communication module and processing module, the control module communicates with the client through the interconnection unit, the storage server communicates with the control module and the cache server respectively, the cache server communicates with the control module, the processing module communicates with the storage server, the cache server and the control module respectively. The modules of the present application can be synchronized quickly, the data access performance is improved, the operation is convenient, the expansibility is strong, the consumptions of computing resources of the network transmission data and the client are reduced, and the cost is lower.

The invention discloses a data writing and reading method, a caching system, terminal equipment and a storage medium, and belongs to the field of data processing. The data writing method is applied to a cache server, the cache server comprises a host memory module and an acceleration module, the acceleration module comprises a key value pair (KV) access unit and a network communication unit, and the method comprises the following steps: the network communication unit receives KV data sent by a client, processes the KV data and sends the KV data to the client; the KV data is data in a data format corresponding to the network communication unit; the network communication unit is used for sending the processed KV data to the KV access unit; the KV access unit establishes a KV index based on the KV data and stores the KV index to the host memory module; and the KV access unit stores at least part of the KV data to a storage server.

The application discloses a data processing method, an electronic device, a storage medium and a program product. The method comprises the following steps: in response to receiving a data request, obtaining a data amount of the data request and a current flow limit value of a flow limiter, wherein the current flow limit value is used to represent an upper limit value of a data amount currently processed by the flow limiter; determining a flow interaction state of the flow limiter based on the data amount and the current flow limit value, wherein the flow interaction state is used to represent a state of whether the flow limiter and a flow cache server perform flow interaction; and forwarding the data request to a data processing end based on the flow interaction state and the current flow limit value. The application solves the technical problem that the related art has a strong dependence risk on the flow cache server.

Embodiments of the present application provide a domain name resolution method and apparatus and an electronic device. The method comprises: in response to reception of a DNS query request initiated by a terminal, determining a target satellite on the basis of geographic location information of the terminal and operation trajectory information of candidate satellites, the candidate satellites being satellites deployed with DNS cache servers; and forwarding the DNS query request to the target satellite, so that the target satellite processes the DNS query request on the basis of the corresponding deployed DNS cache server. Therefore, the DNS query request does not need to be sent to a ground station by means of a satellite-earth link, significantly reducing the satellite-earth transmission time delay required by a DNS query, and then reducing the query delay. In addition, the target satellite suitable for processing the DNS query request is determined for the terminal by taking into account the operation trajectory information of the candidate satellites, thereby further reducing the time delay of forwarding the DNS query request and feeding back a DNS query result.

The present invention discloses an industrial gas production and sales traceability management system, comprising a server, data acquisition equipment, a sales information system, a container filling management module, a container in-and-out management module, a product quality management module, a product inventory management module, and a data traceability module. The server includes a data acquisition cache server and a database server. The data acquisition cache server periodically generates data from the data acquisition equipment and caches the data using an internal algorithm. The database server periodically reads the classified data from the data acquisition cache server for long-term storage, which is then directly read and accessed by the sales information system. The sales information system reads and processes the data from the database server and then connects to modules such as the container filling management module. This invention solves the problem that existing industrial gas sales data cannot be combined with production data and that sales data cannot be traced.

The present invention provides a method and system for improving the cache hit rate of edge CDN sinking nodes, belonging to the technical field of content delivery networks. The method includes: the sinking node cache server records each URL in order of requests and saves it in a file; the cache server deploys an agent to collect the file, and uploads the compressed file to the central cache analysis service cluster at regular intervals; the global URL access times within the saved area are saved, the access frequency of the URL is updated in real time and sorted, and the hottest URL list is screened out; at regular intervals, the TOP N data records sorted from high to low according to historical access times are obtained from the database; it is converted into resource hot spot bitmap information using CF and sent to each sinking node cache server; the resource hot spot bitmap information is saved in the memory and persisted to the disk at the same time. The present invention can cache more popular content within the limited storage space of the sinking nodes, effectively improving the cache hit rate.

This invention provides a lightweight digital twin migration method and system for vehicle-to-everything (V2X) scenarios, relating to the field of urban V2X digital twins. The invention first constructs a V2X digital twin system, including a communication model, a synchronization delay model, a caching model, and a migration model. Based on the migration model, a digital twin migration utility function is defined. Based on the digital twin migration utility function, the communication model, the synchronization delay model, and the caching model, an optimization problem and its constraints for the V2X digital twin system are established. The optimization problem of the V2X digital twin system is solved to obtain the caching server and the optimal migration strategy. The digital twin is then migrated according to the optimal migration strategy, achieving digital twin migration. This invention utilizes a caching mechanism to effectively address the lag in vehicle twin migration and improve migration flexibility. Simultaneously, the use of Tiny MLP ensures effective feature representation capabilities while adapting to resource-constrained or low-latency scenarios, completing the transformation from environmental observation to action decision-making, and achieving digital twin migration while reducing migration time and energy consumption.

The invention provides an edge cloud collaborative data processing system and method based on deep learning, and relates to the technical field of edge cloud collaboration, and the method comprises the steps: extracting a task feature vector of edge terminal equipment from a data task flow; constructing a task dependency graph, and determining an allocation label during sub-task processing through the task dependency graph and the resource allocation granularity of the sub-tasks in the data task flow; carrying out confidence adjustment on each distribution label to obtain execution confidence of the subtasks on the edge terminal equipment, and further carrying out load transfer analysis on the edge terminal equipment to obtain load transfer quantity of the edge terminal equipment; when the load transfer amount is smaller than a preset load transfer threshold value, the subtasks in the data task flow are asynchronously executed in the edge terminal device, and otherwise, the data task flow in the edge terminal device is sent to the cloud server through the edge cache server for batch processing. The task load between the edge terminal device and the cloud server can be divided under the condition that heterogeneous computing resources are limited.