50results about How to "High Availability" patented technology

The present invention provides content providing apparatus and method and a content providing system which maintains a compatibility with an IP network and deliver a content with a complete distributed architecture excluding the content synchronizing process and the request routing process which delivers the content.

A plasma processing apparatus has a liquid storage vessel which is formed outside of a dielectric window and in which a plasma-exciting coil or electrode is placed inside and moreover in which an electrically insulative liquid is stored in the inside of the liquid storage vessel, as well as a cooling unit and a heating unit for the liquid. Temperature of the liquid stored in the liquid storage portion is adjusted, by which temperature of the plasma-exciting coil or electrode and the dielectric window is controlled via the liquid.

A method and a device for the gasification of solid fuels such as bituminous coal and coke such as bituminous coal, lignite, and biomass, as well as petroleum coke, that are finely ground and mixed with water or oil to make fuel-liquid suspensions, so-called slurries, and their gasification together with an oxidizing medium containing free oxygen by partial oxidation at pressures between atmospheric pressure and 100 bar, and at temperatures between 1200 and 1900° C., in an entrained flow reactor. The method includes the steps of slurry preparation and infeed to the reactor, gasification in an entrained flow reactor with cooled reaction chamber contour, partial quenching, waste heat recovery, and wet or dry dust separation, with the crude gas being pretreated so that it can be fed to other technological steps such as crude gas conversion or desulfurization.

Some embodiments establish for an entity a virtual network over several public clouds of several public cloud providers and/or in several regions. In some embodiments, the virtual network is an overlay network that spans across several public clouds to interconnect one or more private networks (e.g., networks within branches, divisions, departments of the entity or their associated datacenters), mobile users, and SaaS (Software as a Service) provider machines, and other web applications of the entity. The virtual network in some embodiments can be configured to optimize the routing of the entity's data messages to their destinations for best end-to-end performance, reliability and security, while trying to minimize the routing of this traffic through the Internet. Also, the virtual network in some embodiments can be configured to optimize the layer 4 processing of the data message flows passing through the network.

A high availability VoIP system interfacing with a PSTN or other TDM network to provide higher availability and better failure recovery wherein the high availability VoIP system includes a plurality of gateways coupled to at least one hub and a proxy table and a call restoration table configured in each of the plurality gateways. Further, the present invention is a method of providing a high availability VoIP system wherein the method includes configuring a plurality of gateways between a PSTN and at least one hub of the system, implementing a proxy table and a call restoration table in each of the plurality of gateways, wherein when a call is received by a gateway in the plurality of gateways from the PSTN, the call is divided into a session initiation protocol (SIP) portion and a real time protocol (RTP) portion, and further wherein the SIP portion is sent to a proxy server and the RTP portion is sent to a media server, both being located in the at least one hub and further routed to an endpoint such as a SIP controlled softphone. A further method of the present invention includes routing SIP voice calls through the plurality of gateways using a proxy server priority table.

Some embodiments establish for an entity a virtual network over several public clouds of several public cloud providers and/or in several regions. In some embodiments, the virtual network is an overlay network that spans across several public clouds to interconnect one or more private networks (e.g., networks within branches, divisions, departments of the entity or their associated datacenters), mobile users, and SaaS (Software as a Service) provider machines, and other web applications of the entity. The virtual network in some embodiments can be configured to optimize the routing of the entity's data messages to their destinations for best end-to-end performance, reliability and security, while trying to minimize the routing of this traffic through the Internet. Also, the virtual network in some embodiments can be configured to optimize the layer 4 processing of the data message flows passing through the network.

Some embodiments establish for an entity a virtual network over several public clouds of several public cloud providers and/or in several regions. In some embodiments, the virtual network is an overlay network that spans across several public clouds to interconnect one or more private networks (e.g., networks within branches, divisions, departments of the entity or their associated datacenters), mobile users, and SaaS (Software as a Service) provider machines, and other web applications of the entity. The virtual network in some embodiments can be configured to optimize the routing of the entity's data messages to their destinations for best end-to-end performance, reliability and security, while trying to minimize the routing of this traffic through the Internet. Also, the virtual network in some embodiments can be configured to optimize the layer 4 processing of the data message flows passing through the network.

In a database, a high availability data replicator (28, 46, 48) synchronizes primary and secondary servers (10, 30). A smart large object application program interface (82) resides on the secondary server (30). A cache module (108) creates a memory cache (88) corresponding to a smart large object responsive to a smart large object read operation requested by a client (86). A smart large object read module (110) executes the read operation without acquiring a lock on the corresponding smart large object. An exception module (102) sends an exception to the client (86) responsive to a synchronizing event of the high availability data replicator (28, 46, 48) modifying said smart large object. On the primary server (10), log entries of the modifying operation are ordered so that a log entry updating a large object header of said smart large object is consistent immediately upon execution on the secondary server (30).

A distributed networked physical security access control system for controlling a plurality of security access devices comprises a plurality of access server appliances in communication with a primary network. Each access server appliance includes an appliance management module being accessible through a web browser in communication with the primary network. The appliance management module configures the access server appliances to a user specified security configuration. The plurality of access server appliances are in peer-to-peer communication on the primary network to bridge the access server appliances for providing consistency in each of the access server appliances.

Method and system embodiments for providing a cloud-based multi-function firewall are described. A method includes retrieving device information associated with a network-enabled device. The device information is transmitted to a secure cloud for configuring a virtual private network (VPN) connection between the secure cloud and the network-enabled device. Cloud information specifying a cloud server in the secure cloud is received from the secure cloud. The secure cloud generates the cloud information based on the device information. Domain name service and routing functions are updated to forward network requests to the cloud server specified in the cloud information. The VPN connection to the secure cloud is established based on the cloud information such that network traffic to and from the network-enabled device is routed through the VPN connection to the cloud-based multi-function firewall implemented on the cloud server.

A method and apparatus for proactively monitoring data center health data to achieve workload management and high availability is provided. In one embodiment, a method for processing application health data to improve application performance within a cluster includes accessing at least one of performance data or event information associated with at least one application to determine application health data and examining the application health data to identify an application of the at least one application to migrate.

The invention relates to a distributed storage method for checkpoint vehicle pass data. The method includes the steps that servers of computational nodes and data nodes are configured and a concurrent computation cluster environment is erected; a list structure is established according to vehicle features needing to be collected, at least two features are selected from the list structure to serve as main keys, and a piece of checkpoint data information is composed of the main keys; a distributed variable index is established for the main keys and commonly-used inquiry fields and a distributed retrieval index is established for license plate numbers; vehicle pass information data sources to be stored of all checkpoints are input; a user inquires the data through the fields containing the indexes and the corresponding data are returned by a system within 100 ms. The invention further discloses the distributed storage system for the checkpoint vehicle pass data. According to the method and device, the requirement for massive vehicle pass information data storage of a checkpoint system used for daily services is met, the index data structure of the data structure of vehicle pass information is designed to achieve the rapid inquiry function, the inquiry rate is greatly increased, and user experience is enhanced.

The supply of power to a storage apparatus can be made redundant by means of power inputs from two types of power supply, namely an AC power supply and a DC power supply.

The storage apparatus comprises a power supply unit for supplying power to a plurality of storage devices, and a power supply controller for controlling a method of supplying power from the power supply unit, wherein the power supply unit makes redundant the power supplied from a first power supply device which supplies AC power and/or from a second power supply device which supplies DC power, and supplies this power to the plurality of storage devices, and wherein, in response to an operator configuration input, the power supply controller supplies power from the first power supply device to one storage device among the plurality of storage devices and supplies power from the second power supply device to another storage device.

The invention discloses a system and a method for collecting container service monitoring data, belongs to the technical field of container services, the technical problem to be solved by the invention is how to enable operation and maintenance personnel to check the state of the container service and the resource use condition in time, to give alarm according to an abnormal condition, so that timely response of operation and maintenance personnel is ensured. According to the technical scheme, the system comprises a container service agent, a monitoring alarm platform, a container service cluster management platform and a monitoring server, the container service agent is used for being connected with a monitoring alarm platform and obtaining monitoring data, pushing, caching, packaging and cleaning of the monitoring data are achieved at the same time, the cluster state can be obtained, and a timing task is provided. The monitoring alarm platform is used for collecting monitoring data of the cluster and configuring alarm rules based on the monitoring data of the container service, and a user can check the monitoring data and the alarm information of the container service through the monitoring alarm platform. The invention further discloses a method for collecting the container service monitoring data.

A processor resetting apparatus comprises a fibre channel arbitrated loop (FC-AL) interface arranged to receive a frame over the FC-AL containing an indicator of a reset command for a server comprising one of a redundant pair of servers and including a processor associated with the resetting apparatus. The apparatus further comprises a reset component, responsive to the reset command, to issue a reset command for resetting the processor. The apparatus therefore provides the ability for a server to reset another server if it detects that the server is faulty.

The invention relates to a control system and to a method of operating such a control system, particularly to a control system for pilot command inputs for a helicopter, with a mechanical input signal (2), at least one electric position sensor (21, 21′) for said input signal (2), at least one electric power supply (25, 25′) and at least one controllable, electromechanical actuator (27, 27′) fed by the at least one electric power supply (25, 25′) and controlled by the at least one electric position sensor (21, 21′). The mechanical input signal (2) is applied mechanically to the at least one controllable electromechanical actuator (27, 27′).

The invention relates to a device of a safety system and/or resource and energy-efficiency improvement system for influencing the flow around an aero- or hydrodynamic body, preferably an aerofoil, according to the principle of a back-flow flap, characterized in that: said device, together with the aero- or hydrodynamic body, in particular aerofoil, form at least a partial shift of the delimitation of the flap region by means of the back-flow flap and the delimiting component thereof when the back-flow flap is partially and/or completely raised, thus influencing the trailing edge separation vortex/vortices and/or the flap separation vortex/vortices; and in that the delimitation of the flap region shifts completely up to or beyond the profile trailing edge, or shifts only to a section in front of the profile trailing edge. The delimitation component is movably connected to the aerofoil by means of a basic element and is preferably permanently secured and/or releasably secured for maintenance purposes, thus ensuring a long service life for the rotor blade and/or wind turbine and/or flap system, preferably >5 years, particularly preferably >10 years, and most particularly preferably >=20 years, and/or thus optionally allowing simple removal/replacement.

The invention discloses a rapid slicing method and system for a multi-scale mass remote sensing image. The method comprises the following steps: S1, receiving and storing an image data file; S2, carrying out task partitioning calculation on the image data, and carrying out tile segmentation and layering on the image data; And S3, constructing a pyramid rapid indexing system of the image data according to the calculation result in the step S2. According to the invention, the multi-scale image data is subjected to slicing, storage and service publication by establishing a rapid indexing mechanism; and rapid query and application of the image data are realized, so that the problems of time consumption, bottleneck in IO efficiency, unrecoverable program processing abnormity and inconvenience in service migration when the large image data is loaded from the disk in the traditional mode are solved, the data processing efficiency and throughput are enhanced, and the user experience and the actual application value of the image are improved.

An arrangement and method for producing a camshaft comprised of a shaft (2) and of a number of cams (3, 3′, 3″) pressed thereon comprises at least two machining stations (11) of which at least one is provided in the form of knurling station (4) and at least one is provided in the form of a press-on station (5). A shaft (2) is firstly fixed in a brandishing station (4) with the aid of a positioning element (7) fastened to the shaft, and the shaft is subsequently brandished. Afterwards, a cam (3) is pressed onto the shaft (2) in a press-on station (5). To this end, the press-on station (5) comprises a workpiece holder, which corresponds to the positioning element and which serves to provide a holding, particularly to provide an angle-precise holding, of the shaft (2) with the positioning element (7) fastened thereto.

A method and computer program product for providing High Availability (HA) of services in a cloud-based system. The services are the applications used by the end users of the cloud system. The system uses shared cloud distributed storage. The cloud data is distributed over several nodes and is duplicated in an on-line mode. Each user launches and runs his own Virtual Execution Environment VEE (VM or Container) used as a cloud service. If one of the hardware nodes becomes unavailable, the HA system restores all of the VEEs of the failed node on a functional hardware node. Each node has a daemon, which monitors the situation and, if one of the nodes crashes, a master daemon provides for the restoration of the services of this node on other available nodes of the cloud.

The determination of node and/or adapter liveness in a distributed network data processing system is carried out via one messaging protocol that can be assisted by a second messaging protocol which is significantly less susceptible to delay, especially memory blocking delays encountered by daemons running on other nodes. The switching of protocols is accompanied by controlled grace periods for needed responses. This messaging protocol flexibility is also adapted for use as a mechanism for controlling the deliberate activities of node addition (birth) and node deletion (death).

The embodiment of the invention is suitable for the technical field of data processing, and provides a data synchronization method and device and terminal equipment, and the method comprises the steps: building a data link between a source database and a target database through employing a preset OGG tool; generating a plurality of data transmission channels between a source database and a targetdatabase based on the data link; when an operation behavior for any data in a source database is detected, analyzing the operation behavior into a byte stream, wherein the byte stream carries time information of the operation behavior; and transmitting the byte stream to a target database through a plurality of data transmission channels, wherein the target database is used for compiling the bytestream into an operation behavior and replaying the operation behavior in the target database based on the time information so as to realize data synchronization. According to the embodiment, the problems that during data consistency processing of a big database, influences of computer resources are large, and timeliness is low are solved.

The invention discloses a method for implementing Hyperv virtual machine live migration based on Openstack. The method comprises the following steps: 1, accessing a corresponding model of sharing storage into a Hyperv cluster according to the platform operation environment, designating the storage access position under the Hyperv designated drive; 2, collecting resource information of each computing node by a cloud platform resource scheduler; and 3, reporting the resource information to the Openstack control node in a sorted manner by each computing node service. The method can be used for automatically estimating the Hyperv computing cluster resource to determine a target machine for virtual machine migration, so that the memory and network of the virtual machine can be migrated to the target machine, and the operation state of the virtual machine is recovered.

A machine has a frame structure for moving a machine head in one or more spatial directions. The frame structure comprises an actuator and an air bearing for moving the head. The machine also comprises a compressed air feed connected to the air bearing for providing a compressed air flow. A restrictor defines the compressed air flow to the air bearing. The machine has a first operating state, in which a high compressed air flow is defined and in which the actuator can be actuated. The machine has a second operating state, in which a compressed air flow lower than the high compressed air flow is defined. In the second operating state, the actuator is secured against actuation from a closed-loop position controller, while the closed-loop position controller is maintained in operation.

The invention discloses a raspberry pi realization implementation board; the raspberry pi realization implementation board comprises a network service terminal, raspberry pi and display equipment, andis characterized in that the network service terminal is connected with the raspberry pi through a wireless network, and the raspberry pi is connected with the corresponding display equipment; the display equipment is based on linux client end application, and when information display is needed, and application is compatible with the package of a linux system through the raspberry pi; and a packaged executable file is executed through the display equipment. According to the raspberry pi realization implementation board, any display end can be flexibly arranged, rewiring is not needed when thedisplay need needs to be added, and the content is updated through the network and the real-time performance is high; and the terminal can be made to be highly available, the reliability is higher than that of a traditional single-terminal node, and the single-sleeve display system is low in cost.

The invention discloses a topic discovering system based on community text data. The system includes a mobile-terminal service system and a server-side system; the mobile-terminal service system includes a community-text-data uploading module and is responsible for acquisition, extraction and uploading of the community text data, and the mobile-terminal service system receives the acquired community text data, extracts the types of the community text data and sends the community-text-data types to a data preprocessing module of the server-side system; the community-text-data types include a TXT format, an HTML format and an XML format; the server-side system includes the data preprocessing module, a vector-quantity extracting module, a hot-topic extracting module, a data visualization module and a data managing and storing module; the system enables community residents, community service workers and urban inspectors to participate in community management, the work efficiency is improved, and high-efficiency service is provided for the realization of community intelligent management.

This invention relates to a system and method for implementing high availability of the server/nodes in a cluster of a cloud network. An application with respect to a customer/client can be received at a high availability manager of a cluster in a cloud network to assign the application to a server/node within the cluster. A seed server/node from a plurality of server/nodes within the cluster can be identified with respect to the application based on the application information and correlation identify of the customer. The seed server/node can be assigned with a primary server/node status to hereby communicate the cluster information with respect to the seed server/node to the plurality of server/node located with the cluster. A secondary server/node with respect to the application can be identified and assigned a secondary server/node status to thereby route the traffic of the seed server/node upon detecting a failure/alert is generated to effectively implement the high availability of server/nodes within the cluster of the cloud network.

The invention discloses a real-time synchronization method and system based on data, and relates to the technical field of data synchronization. The system comprises a control module, a change capturemodule, a message queue module, a data synchronization module and a Schema management module, the control module defines and starts a synchronization task; the change capture module captures changeddata of the source database and encodes the data into a synchronous message according to a synchronous message Schema template; and sending the synchronization message to a message queue module, pulling the unconsumed synchronization message in the message queue module by the data synchronization module, analyzing and verifying the synchronization message according to source table Schema information in the Schema management module, assembling the synchronization message into a target database command, and sending the target database command to execute.

A high-availability computer system includes a plurality of computer nodes for parallel data processing, wherein each computer node has at least one data processing component and a main memory. The computer system furthermore includes a plurality of storage nodes, wherein each storage node has at least one non-volatile mass storage device. The plurality of computer nodes are partitioned into a plurality of computer groups, wherein each of the plurality of computer groups has at least one redundant computer node. Each computer group has a local connection structure allocated to the respective computer group, the structure connecting the storage nodes allocated to the respective computer group to the computer nodes of the respective computer group.

The invention provides a method and a system for improving the disaster tolerance capability of a PostgreSQL cluster, a medium and a terminal; the method comprises the steps of obtaining a logic relation between a node and the cluster, and updating Internet protocol address information and final updating time information in a database if the node is an external node of the PostgreSQL cluster; if the node is a PostgreSQL cluster internal node, regularly inserting or updating Internet protocol address information and updating time of a to-be-checked node into a database; if the to-be-checked node is a main node, obtaining a service state of the to-be-checked node, and when it is judged that the to-be-checked node is in an abnormal state, taking a first active and available node selected fromthe DBCommon as a new intra-cluster node, updating a database, and deleting abnormal nodes; according to the invention, when the number of PostgreSQL clusters is reduced, the available nodes are actively searched from the storage cluster to replace the offline nodes, and under the condition that the storage cluster has the available nodes, the number of the clusters is kept unchanged, so that a high-availability function can be ensured, and the disaster tolerance capability and the better cluster self-repairing capability are improved.