53results about How to "Improve service availability" patented technology

A router and routing protocol redundancy are disclosed to reduce service outage or degradation for a network device and thus to increase service availability on a network due to software and hardware failures of the network device. A network device such as router includes a redundancy platform having an active controller system and a standby controller system. A routing protocol state change is received or generated by the active controller system. The received or generated routing protocol state change is replicated to the standby controller system. By replicating the routing protocol state change, the standby controller system can maintain the routing protocol sessions for the network device if a failure occurs in the active controller system. Furthermore, the routing protocol states are maintained in realtime to handle the dynamic changes created by routing protocols.

The invention discloses a data storage method and a server applied to a distributed server cluster that includes multiple nodes. One embodiment of the method includes: receiving by the main node in the server cluster a data write-in request, wherein the data write-in request contains the data to be written in; broadcasting by the main node the data write-in request to each packet in the server cluster, wherein the each packet contains at least one node; responding by the main node to the confirmation information fed back by more than a half of the packets; sending to the user terminal initiating the data write-in request the notification information that the data are successfully written-in, wherein if the packets do not include the main node, the packet successfully writes the data to be written in the memory in response to at least one node in the packet and feeds back confirmation information to the main node. The embodiments of the invention can improve service availability while ensuring data consistency of the distributed data server cluster.

The invention discloses a resource adjusting method and device of an application service system. The method comprises, according to the parameter values of reserved resources which are collected in real time or periodically, determining whether to perform dilatation or shrinking adjustment; based on resource adjusting schemes in two directions, including a longitudinal resource adjusting scheme for increasing or reducing the resources on the basis of the inside of virtual machine systems and a transverse resource adjusting scheme for increasing or reducing the number of the virtual machine systems on the basis of application templates, preferably selecting a longitudinal dilatation direction during the dilatation, and preferably selecting a transverse reduction method during the reduction; according to a finally-determined increase or reduction direction, adjusting the resources of the application service system. According to the resource adjusting method and device of the application service system, resource allocation can be diversified in granularity, actual requirements and resource saving principles can be better met, and accordingly the resource utilization rate can be improved.

The invention relates to a network agent system based on an instant communication platform, which adds an agent module on the client of an instant communication system, and correspondingly, another agent module is added on the server of the instant communication system. Compared with the common instant communication system, the main change of the system is that the agent module is added on the client, and the agent module provides the function of establishment and discovering of the agent. Correspondingly, the instant communication server also expands the related operational function of the agent, which not only takes charge of the interaction of the agent information of the user, but also processes the decisions and statistical information related to the agent, such as the flow of the content, the rate of the network, etc. A method which is used for realizing network agent system and based on instant communication platform consists of two basic processes; the two basic processes respectively relate to the basic process used for establishing and providing agent service for the user and the basic process used for leading the user to successfully discover and use the agent service.

A Destination Call Router network element is provided for Internet Protocol dial-up congestion relief, providing Public Switched Telephone Network off-load. The network element, a combination of an Asynchronous Transfer Mode switch and a Broadband Interworking Call Router with application software, is interposed as a node within the conventionally arranged PSTN. Call data is interworked to destination locations based upon call types associated with called directory numbers. Signaling messages for voice-type calls are forwarded over the standard telephony signaling network to destination End. Offices. Signaling for Internet Protocol calls is routed to a Remote Access Server via a Primary Rate Interface after translation to an applicable ISDN protocol, thereby bypassing destination End Offices for IP calls. For both call types, the network element controls its constituent ATM switch to direct ensuing call communications to the appropriate destination. Call Detail Records are collected for IP calls and forwarded to the existing call accounting system of the conventionally arranged PSTN.

The invention provides a multi-version program coexistence method and apparatus for a big memory service. The method comprises the steps of receiving a first request sent by a client through a server deploying a first copy, wherein the first request carries a mark of the first request processed by a program of a first version; forwarding the first request to the program of the first version for processing, and determining that the program of the first version is abnormal; sending a notice to the client, so that the client sends a second request to a server deploying a second copy, wherein the second request carries a mark of the second request processed by a program of a second version; and forwarding the second request to the program of the second version for processing by the server deploying the second copy, wherein the first version is an updated version of the second version. According to the method and apparatus, for the big memory service needing multiple versions for release or experiment, the service availability can be effectively improved without increasing the machine cost.

The invention discloses an API gateway guarantee service high availability method and a system based on fusing and secondary caching. The method comprises the following steps of: 1) when an API gateway service receives a service request sent by a calling party, obtaining API configuration information from a memory, determining whether to access a Cache, if yes, obtaining a response result from a first-level cache of the Cache, and if not, sending the service request to a back-end service; 2) generating a corresponding response result by the back end service according to the received service request and putting the response result into a first-level cache and a second-level cache of the Cache; and if the abnormal result returning times of calling the same API gateway service reach a fusingthreshold value, entering a fusing process of the API gateway service, and enabling the API gateway service to enter a fusing opening state. According to the method, high availability of the service is ensured, and the user experience is improved.

The invention discloses a multi-cloud storage system based on cloud and fog cooperation and a management method thereof. The multi-cloud storage system based on the cloud and fog cooperation and the management method thereof are high in service availability, good in access performance, low in storage cost and high in data security. The multi-cloud storage system comprises a plurality of clients (1), fog computing nodes (2) and a multi-cloud storage service (3), wherein the fog computing nodes (2) are adjacent to the clients (1), the fog computing nodes (2) are in communication interconnectionwith the clients (1) through a network, and the multi-cloud storage service (3) is far away from the fog computing nodes (2) and the clients (1) and is in communication interconnection with the fog computing nodes (2) through a remote network. The method comprises the processing steps of (10) sending an access request, (20) authenticating the access request, (30) reducing file data, (40) performing file security fault-tolerant coding, (50) sending coded file fragments, (60) receiving file fragment processing, (70) migrating cloud storage service and (80) deleting files.

The invention aims to provide a method and a device for controlling file access in a distributed file system. Compared with the prior art, a control device obtains a lease request about a target file in the distributed file system and sent by user equipment; if the target file can be leased, the lease about the target file is allocated to the user equipment; and lease serial number information of the lease is sent to the user equipment; by adding the lease serial number information for representing a lease request sequence of the user equipment, data disorder is avoided when an equipment fault occurs, so that the service availability is improved and the service fault time is shortened; and the lease serial number information is maintained through the control device, the user equipment and a storage device, so that the data access correctness of the user equipment is ensured.

A pumping system and a pumping method implemented with the pumping system. The pumping system comprises a solar panel performing a photovoltaic conversion based on an insolation level including a first insolation level and a second insolation level; a fuel reservoir containing a fuel in a liquid state; an electric motor; a pump rotatable by the electric motor to pump the fuel; and a first motor drive converting electrical energy supplied by the solar panel to drive the electric motor at a first speed when the insolation level is at the first insolation level and at a second speed, slower than the first speed, when the insolation level is at the second insolation level, thereby pumping the fuel at a first rate and a second rate, respectively.

The invention provides a tracking method of hot rolling basic automation control data security timeliness, and the method is used for transmitting steel strip information of production completion to a local database accurately in real time and transmitting the steel strip information to a remote database in the Ethernet synchronously. The technical scheme of the invention is as follows: a data acquisition device is equipped with dual network cards; one of the network cards is connected with a memory mapped network and the network card and the memory mapped network are set as a network section; the other network card is connected with a third layer of Ethernet and the network card is set as a three-layer Ethernet section; an acquisition program in the data acquisition device establishes an external variable of Profibus; the external variable corresponds to a PLC (Programmable Logic Controller) unit address, in such a way, the data acquisition program shares one same memory address; data of finished products in the PLC memory can be stored into the local database through a memory mapped network data acquisition program; lost data can be found from the local database by using a communication interrupt data retransmission mechanism; the lost data can be added into a temporary memory; and a retransmission program is triggered manually till the data is transmitted into the remote database safely.

The invention relates to a service system providing an offline message and a service method. Various kinds of offline messages are classified and tidied in advance and then a common portion of the offline messages on pattern and content aspects is concluded and organized so as to be served as a message template. And the message template is stored in a message template server in a server and a message template storage area in a client. The service method which is used to provide the offline message comprises the following steps that a message adding party served as a first client adds a message parameter to a message service system in the server; the message service system inspects whether a target user served as a second client is on line; if the target user is not on line, a message which needs to be transmitted is determined to be the offline message and the message parameter corresponding to the offline message is stored to a database in the server; when the target user is on line, the message service system issues the message parameter stored in the database to the target user.

The invention discloses an application deployment method, an apparatus, a computer device and a storage medium, wherein the method comprises the following steps: obtaining an online mode specified bya user from at least two online modes; acquiring at least one uplink cluster specified by a user; according to the uplink mode specified by the user, the application is deployed on each cluster specified by the user. By applying the scheme of the invention, various business scenarios can be satisfied and the service availability can be improved.

The embodiment of the invention discloses a global content auditing method and device, computer equipment and a storage medium, and the method comprises the steps: obtaining a content auditing requestsent by a client, wherein the content auditing request comprises address information and target content; according to the address information, allocating the target content to a target auditing nodeconforming to a preset first matching rule so as to carry out content auditing on the target content, wherein the target auditing node is an auditing center in the distributed auditing system; and sending an auditing result returned by the target auditing node back to the client. According to the invention, a plurality of machine auditing node area center clusters are deployed globally; and machine content auditing localization and high service disaster tolerance are realized through the intelligent agent system, and a nearby content auditing processing mode is adopted, so the machine contentauditing response speed is high, the network bandwidth is small, the service availability is high, and the service availability can still be ensured when the centers of partial regions fail.

The invention relates to a method of operating a radio communications network (100), wherein data is transmitted from a base station (10) of said network (100) to a terminal (20) via a radio link (15). The inventive method is characterized in that data to be transmitted from said base station (20) to said terminal (20) is transmitted in advance to said terminal depending on current data transmission conditions of said radio link (15) and stored to a cache memory (21) of said terminal (20).

The embodiment of the invention provides a server security defense method and system, communication equipment and a storage medium, a client sends a domain name resolution request to a domain name server, and the domain name server resolves a server domain name in request information into an identification management server IP address and returns the identification management server IP address tothe client; the client sends a service request to the identifier management server, the service request comprises a service identifier, the identifier management server requests a dynamic identifier from the identifier gateway, the identifier gateway allocates dynamic identifier information and returns the dynamic identifier information to the identifier management server, a mapping relationship is established, and the identifier management server returns a redirection response to the client; and the client sends a service request to the identification gateway, and the identification gateway converts the service request information according to the mapping relationship, sends the service request information to the service server, converts the received response information of the service server and sends the converted response information to the client. In some implementation processes, the communication parameters of the server are randomly and dynamically transformed, the target server is actively protected, and the safety is improved.

Provided in the disclosed embodiments are methods and apparatuses for switching service nodes in a distributed storage system, the service nodes comprising a current service node and backup service nodes. The method comprises: monitoring response states of the service nodes to a service request; and if a response state of the current service node is abnormal, stopping communication between the current service node and the backup service nodes, and triggering a switching process for the current service node. In the case of a service timeout, service unavailability, service abnormality, or the like caused by a hardware failure or software defect, logic is checked with a service node that performs logical determination and data statistics collection for multiple factors affecting response states of service nodes, thereby achieving autonomous switching and recovery of the service nodes and improving service availability.

The invention discloses a data request processing method and device, and a computer readable storage medium, and belongs to the technical field of distributed services, the method comprises the stepsof receiving a task request sent by a target service in a plurality of services, the task request being generated by the target service in response to a download request of a client for a target datafile; creating a task for downloading the target data file according to the task request, determining a task weight of the task, and adding the task into a task queue according to the task weight of the task; performing asynchronous processing on the tasks in the task queue to download a target data file; and returning the storage path of the target data file to the client. According to the method, decoupling of a data downloading function in the application service can be realized, repeated development is not needed, sharing of the function service is achieved, resource occupation of the target service is reduced in the file downloading process, the service availability is improved, large-data-volume data downloading can be supported, and the service stability can be guaranteed.

The invention relates to an IPv6-protocol-based scheduling method of a flow inlet. The method comprises: all IPv6 addresses are divided into at least one address segment, wherein each address segment corresponds to one regional domain; at least one cache server is arranged in each regional domain and a cached IPv6 address of each cache server is obtained; according to a domain name accessed by a user, a website IPv6 address of a website server accessed by the user is obtained; and whether the access content of the user is cached in the cache server of the regional domain corresponding to a local IPv6 address of the user is determined and then different IPv6 addresses are distributed as access IPv6 addresses of the user. In addition, the invention also provides an IPv6-protocol-based scheduling apparatus of a flow inlet. According to the invention, local caching of the accessed content is realized; because no loss of the flow is caused by local access, the flow of access of the original website is reduced, so that the bandwidth cost is lowered, the service quality is enhanced, and the service availability ratio is increased.

The invention provides a failover method and a failover device of an HBase system. The method is applied to a first working node in an HBase system. The method comprises the following steps of obtaining a pre-writing log system WAL file sent by a management node in an HBase system, wherein the WAL file comprises: a WAL file; when a second working node in the HBase system breaks down, the WAL filesof a plurality of table fragments are arranged in the second working node; splitting a WAL file in a self node memory; obtaining a WAL file of each table fragment; according to the WAL file of each table fragment in the own node memory, obtaining the WAL file; and determining update data of each table fragment in the memory of the second working node when a fault occurs, and writing the update data of each table fragment into the own node hard disk, thereby realizing transfer and persistent storage of the update data of the table fragments in the memory of the second working node, and avoiding loss of the data in the memory when the second working node has the fault.

The invention relates to the technical field of distributed artificial intelligence, and provides a node scheduling method and system based on a domain name, a terminal and a storage medium, and the method comprises the following steps: carrying out the initial configuration of nodes in a cluster, and determining a first slave node which comprises a candidate master node and a non-candidate master node; sending a state detection request to non-candidate master nodes to obtain state detection information of each non-candidate master node, and determining the non-candidate master nodes as target master nodes according to the state detection information; constructing according to the target main node to obtain a target access address set, and performing access address allocation on the service request through the target access address set; according to the scheme, when a single node is abnormal, the node can be quickly switched to other nodes, so that the overall high concurrency resistance and risk resistance of the scheme are improved, automatic management of cluster nodes is realized, manual intervention is reduced, the service availability and risk resistance are improved, and the method can be widely applied to the technical field of cloud computing and cloud storage.

The invention relates to a data analysis technology, and discloses a channel user recommendation method, which comprises the following steps of: configuring each channel information and user information at a front end; storing all the channel information and the user information in a background cache; filtering repeated users in the cached user information through a Bloom filter; assembling the user information conforming to the channel preset condition, and putting the user information into a MongoDB database; and recommending corresponding users to different channels according to the user information in the MongoDB database. The invention further provides a server and a computer readable storage medium. According to the channel user recommendation method, the server and the computer readable storage medium provided by the invention, the user information conforming to the conditions can be accurately recommended to different channels, and the influence of repeated recommendation on the channel processing efficiency and the user experience is avoided.

The invention relates to a low-orbit navigation enhancement system which carries a GNSS monitoring receiver on a low-orbit navigation enhancement satellite to realize precise orbit determination and autonomous and flexible generation of GNSS precise correction messages. Under the control of a time-frequency reference provided by a high-stability clock, a low-orbit navigation enhancement signal is generated, a GNSS precise correction message and a broadcast message and a precise correction message of a low-orbit satellite are broadcasted, PPP and PPP-AR are supported, and precision enhancement is realized. A downlink signal broadcasts the low-orbit navigation enhancement signal, broadcasts an atmospheric correction message, supports PPP-RTK positioning and accelerates convergence, and at the same time, broadcasts a low-orbit L-band three-frequency navigation enhancement signal, realizes rapid ambiguity fixation, and realizes second-level convergence high-precision positioning calculation and time service. When a high-power low-orbit navigation enhancement signal is broadcasted, high-availability positioning calculation and time service are realized; meanwhile, narrowband signal components are broadcasted, and low-energy-consumption positioning service is supported. And a message authentication and spreading code authentication mode is adopted, so that the service of security enhancement is realized.

The invention discloses a resource locking method and device and electronic equipment. The method comprises the following steps: providing a resource selection interface for a user to select a targetresource; when a selection operation of a user on a target resource is received through the resource selection interface, determining whether the corresponding user has a resource locking permission or not; and when the user has the resource locking permission, locking the target resource, so that the target resource cannot be used by other users. According to the invention, the resource use efficiency is improved, and the resource use experience of a user is improved. Meanwhile, malicious resource locking is avoided, and the availability of resource use service is improved.

The invention discloses an application layer fault tolerance method and system in a mysql main-standby mode, belongs to the technical field of database disaster tolerance, and aims to solve the technical problem of data inconsistency possibly caused by a mysql main-standby synchronization mechanism. The adopted technical scheme is as follows: the method specifically comprises the following steps: deploying an application layer database; deploying an unsynchronized data access control system database table; the application layer logs in the unsynchronized data access control system; and the application layer writes the service table. The system comprises a deployment module I, a deployment module II, a login module and a writing module, and is used for writing a service table in an application layer.

A technique for discovering and identifying locations at which to deploy new Layer-2 nodes within a telecommunications network. The disclosed technique is intended to identify Layer-2 nodes at locations where they can improve service availability when deployed, especially in geographic regions that suffer frequent or simultaneous cable breaks, or both. The locations of the new Layer-2 nodes depend on the underlying Layer-0 network topology, as well as on the existing Layer-2 topology. Thus, the disclosed technique features a cross-layer approach that takes these factors into account and evaluates the locations in a way that can considerably increase the availability of one or more services offered in the telecommunications network.

The invention relates to the technical field of MySQL group replication node identification, in particular to a node identification method and device for MySQL group replication, and the method comprises the steps: S1, the related logic processing of a service starting initialization stage is performed; s2, the node connection management module interactively cooperates with the transaction processing flow; and S3, when the MySQL group replication node has an abnormal fault, the node is connected with the interaction cooperation of the management module and the transaction processing flow. Through the node connection management module, the node data register and the node state identification module, on the basis that a network link between an application system and data is not changed, automatic master-slave switching of quasi-real-time detection, discovery and adaptation MGR nodes is met, the connection reestablishment action is avoided, the configuration complexity of the application system is reduced, and the service availability of the application system is improved.

The invention discloses an application deployment method, an apparatus, a computer device and a storage medium, wherein the method comprises the following steps: obtaining an online mode specified bya user from at least two online modes; acquiring at least one uplink cluster specified by a user; according to the uplink mode specified by the user, the application is deployed on each cluster specified by the user. By applying the scheme of the invention, various business scenarios can be satisfied and the service availability can be improved.