82results about How to "No single point of failure" patented technology

The invention discloses a cloud storage system for providing cloud storage service for users. The cloud storage system is characterized by comprising a cloud storage service provider (103), a primary agent node (102), a secondary agent node and a storage cloud (105), wherein a user sends a service request, the primary agent node selects the service scheme provided by the configuration of the optimal cloud storage service provider according to the request, and the secondary agent node selects the storage center in the data storage cloud to realize the cloud storage service. The invention also provides a data deployment method of the cloud storage system, which is used for deleting, modifying or adding user data. The invention can support services provided by multiple cloud storage service providers to accelerate the response speed of service used by the users, and can dynamically configure a bottom storage architecture according to the characteristics of the users, thereby simultaneously having the advantages of a master-slave mode architecture and a peer to peer storage architecture.

The invention provides a mirror image storage and distribution system for virtual machines. The mirror image storage and distribution system comprises cluster management servers, local object storage servers, DHT-MAP mapping servers and QEMU block drivers, wherein the local object storage servers, the DHT-MAP mapping servers and the QEMU block drivers run on test computers of a distributed cloud computing platform. By the adoption of the mirror image storage and distribution system, batch and fast deployment of distributed cross-region virtual machines can be achieved, and the defects that the period is long, dynamic extension can not be achieved and usability is low when a traditional system and method are used for deploying the virtual machines can be overcome.

The invention relates to a fireman individual-soldier system on the basis of a wireless Mesh network framework. The system consists of a wireless monitoring mainframe, a plurality of wireless individual-soldier sub-machines and a plurality of wireless repeaters, wherein the wireless monitoring mainframe consists of a monitoring module and a wireless center node module; and each wireless individual-soldier sub-machine consists of a central processing unit module, a positioning module, a vital sign detection module, a distress call module, an environment condition detection module, a carried equipment detection module and a wireless terminal node module. When the fireman individual-soldier system is applied particularly, firemen wear the wireless individual-soldier sub-machines to enter a fire site or other accident sites and a chief officer monitors information such as postures, motion tracks, vital signs, environment conditions, carried equipment conditions and the like through the wireless monitoring mainframe, so that the intelligence support of a command decision is provided for the chief officer in time and a scientific basis can also be provided for daily tactical training. By the fireman individual-soldier system, the modernization, automation and intellectualization levels of a fire command are improved and the battle damage rate of the firemen can also be effectively reduced.

The invention belongs to the technical field of tax system credit investigation management, and discloses a tax payment credit investigation system based on a block chain and a processing method, andthe method comprises the steps: accumulating data of each mechanism to a unified block chain platform, and integrating all information; using a specific consensus algorithm to input credit data into the block chain, and analyzing and calculating individual credit scores to form a huge information set; meanwhile, enabling the open port to continuously accept resources to form an information network, so that all participants are equivalent and mutually beneficial; constructing a tax platform introducing an interstellar file system using the interstellar file system for uploading duplicate text information, and directly storing a returned hash value and a small tax payment data file on a block chain which is used for a tax system and a credit alliance and caching the value and file in a standby traditional database at the same time. According to a data sharing method based on the block chain, member nodes in the regional autonomous alliance are mutually constrained and supervised while sharing data, and 'information island 'phenomenon is solved.

The embodiment of the invention discloses a construction method of a center node of a distributed system. The method comprises the following steps of: starting an election process by sending an election message, comparing an election round and a message request number of a node which receives the election message, and carrying out updating by adopting a large election round and a large message request number; forming a recommending message of the center node according to the updated election round and message request number, and sending the recommending message to the distributed system; and counting the recommending of the center node in the recommending message by the node, and setting the node having a recommending number reaching a preset threshold value as the center node. The embodiment of the invention further discloses a data request submitting method and a monitoring method based on the center node of the distributed system, and apparatuses of the data request submitting method and the monitoring method based on the center node of the distributed system. The center node constructed by the embodiment of the invention is stable.

The invention discloses an optimization method of the Cassandra system in virtual environment. The optimization system of the Cassandra system in virtual environment comprises the following steps: using Point-to-Point Protocol to obtain a corresponding relation between a virtual machine and a physical machine in order to ensure the startup physical machines on each rack, and the startup virtual machines on each physical machine; organizing and classifying the virtual machines according to the startup physical machines on each rack, and the startup virtual machines on each physical machine; using dichotomy to choose the corresponding virtual machine as the present virtual machine and a main backup node and an auxiliary backup node as replica placement according to the result of organizing and classifying the virtual machines and key value requests from users; meanwhile ensuring the present virtual machine, the main backup node and the virtual machine which is closest to the virtual machine of receiving the key value requests of the users in the auxiliary backup node to communicate. The invention further discloses an optimization system of the Cassandra system in virtual environment. The optimization method and system of the Cassandra system in virtual environment is capable of resolving problems of replica placement failure and low communication efficiency in the prior art.

The invention discloses a Storm based stream computing frame text index method and system. The Storm based stream computing frame text index method includes: implementing topology of a storm, designing a Storm real-time data processing frame, and completing a webpage automatic extraction program of a web spider; automatically extracting key words; and classifying texts: classifying texts into one or more classifications according to content or attributes of the texts. The method and the system can allow backup data back in the conditions of data corruption or data loss, and recovers data; the function of centralized operation and maintenance of the system can be provided; an interface is beautiful and practical, and a convenient and visual graphical user management interface is achieved; function expansion can meet the demands of a user for later system expansion and use range expansion; and fault tolerance allows the system to have a certain fault tolerance mechanism when illegal data generates due to user input or wrong operations.

The invention relates to a method for node placement of the Internet of things. The method comprises the steps of establishing a square basic monitoring area model, calculating the area of the basic monitoring area model and comparing the area of the basic monitoring area model with the area which actually needs to be monitored, establishing a novel square basic monitoring area model and calculating the area of the novel square basic monitoring area model, determining the multiple relation of the area of the novel square basic monitoring area and the area which actually needs to be monitored, determining the relations of the number of nodes of a total sensor, the distance of two adjacent sensor nodes on diagonal lines, a topological hierachy number, the number of cluster head nodes and the area which actually needs to be monitored, actually choosing and arranging a monitored area, choosing a topological structure which can represent the whole terrain configuration, configuring the dynamic-static combination routing mechanism of the whole monitoring area, and when the monitoring area needs to be expanded, the monitoring area is combined or a plurality of circles of basic monitoring areas is added on the outermost layer of the monitoring area. The method can be widely used for the node displacement of the Internet of Things.

The invention provides a system for storing vehicle-mounted information by using a distributed data storage program and a storage method thereof, relates to enterprise applications of distributed data storage software, and in particular relates to a system for storing positional information data of a vehicle-mounted information terminal by using a distributed data storage program and a storage method thereof. The system comprises the vehicle-mounted information terminal, a server cluster, a data processor (DP), a data access processor (DAP) and storage programs, wherein the vehicle-mounted information terminal is installed on a vehicle; the server cluster comprises at least five personal computers (PCs); and the storage programs are installed on the PCs in the server cluster respectively and comprise open source distributed data storage program software Cassandra. The storage method comprises the following steps: 1) configuring the operating environment of a distributed data storage system; 2) establishing a data storage structure; 3) setting the DP and the DAP; and 4) starting the DP and the DAP.

The invention discloses a method for marking the geographical position of a host. The method comprises the following steps: configuring the corresponding relation between an IP address field and a geographical position; generating an IP address of the host according to the configured corresponding relation between the IP address field and the geographical position, and writing the mapping relation between the name of the host and the IP address into a HOSTS file; obtaining the IP address mapped by the name of the host through inquiry of the HOSTS file; and acquiring the geographical position of the host according to the inquired IP address mapped by the name of the host. The invention further discloses a system for marking the geographical position of the host. According to the technical scheme of the invention, the specific geographical position of the host can be quickly inquired without depending on the third-party system.

The application discloses a hyper-converged normal recording system based on distributed object storage, which is used for realizing the full-distribution architecture of video collection, storage andaccess, and satisfying the high scalability, high ease of use and high reliability requirements of normal recording and broadcasting. The distributed video acquisition realized by software has good scalability and good reliability and may cope with the large-scale growth of the classroom with no single point of failure. Videos are stored in distributed object storage by levels in the form of an object, which is high in reliability, strong in scalability, good in retrieval performance, and convenient for videos shared on the Internet.

The invention provides a distributed cluster file system. The system comprises physical servers and a storage server. Each physical server is provided with a distributed cluster management unit, a cluster logical volume management unit and a virtual case file system (VCFS) unit, wherein the distributed cluster management unit is used for providing heartbeat messages between the physical servers to ensure that all the physical servers in a cluster run normally; the cluster logical volume management unit is used for managing physical volumes, a logical volume group and logical volumes in the cluster; and the VCFS unit is used for storing the disk file data of virtual machines. The storage server is used for providing block-level storage equipment. According to the distributed cluster file system, a global namespace is adopted, file-level data is shared between system platforms, and storage equipment is added, so that the storage capacity, input/output (IO) bandwidth and load capacity of the system can be expanded on line, and the capacity can be reduced on line; and a storage system is prevented from a single-point failure, and can be ensured to run integrally continuously, and storage performance is improved.

The invention discloses a small computer room monitoring system and belongs to the technical field of monitoring. The small computer room monitoring system comprises a management center module, a power environment module and a terminal receiving module. The management center module is used for commanding and coordinating the power environment module to regulate and control a distributed computer room, the power environment module is used for executing instructions of the management center module and feeding back information, and the terminal receiving module is used for receiving power environment module video and other information transmitted by the management center module and feeding back information to the management center module. The small computer room monitoring system is stable and free of single-point failure, so that people can build a larger monitoring system conveniently; the small computer room monitoring system which is of a distributed structure is convenient to expand, and capable of providing a complete chain of evidences for analyzing accident causes through network integration.

The invention provides a distributed transaction processing method, device and system.The method comprises the steps that after a first-stage transaction in a distributed transaction is executed, the first-stage transaction is submitted; whether the first-stage transaction is successfully submitted or not is detected; if yes, a first notification message with a first detection result indicating that the first-stage transaction is successfully submitted is sent to a control thread, so that the control thread notifies second service nodes corresponding to a second server cluster and a second database cluster to start executing a second-stage transaction in the distributed transaction after receiving the first notification message.According to the distributed transaction processing method, device and system, the interaction procedure between first service nodes and the control thread is simplified, no single point fault problem exists, related requests are few, and occupation to a system and network resources is also little.

The invention discloses a distribution type machine room monitoring system, and belongs to the technical field of monitoring. The system comprises a management center module, a dynamic environment module and a terminal receiving module. The management center module is responsible for commanding and coordinating regulating and control of the dynamic environment module over a distribution type machine room, the dynamic environment module is responsible for executing commands and feedback information of the management center module, and the terminal receiving module receives video and other information, transmitted by the management center module, of the dynamic environment module and feeds back the information to the management center module. The distribution type machine room monitoring system has the advantages that the system is stable and has no single-point failures, a client can conveniently erect the monitoring system within the larger range, due to the distribution type structure, expanding is convenient, network integration is achieved, and a complete evidence chain can be provided for analyzing the accident reason.

The invention belongs to the technical field of monitoring and discloses a monitoring system applicable to machine rooms of communities. The monitoring system comprises a management center module, a dynamic environment module and a terminal receiving module. The management center module is responsible for conducting and coordinating the dynamic environment module to control distributed machine rooms, the dynamic environment module is responsible for executing commands of the management center module and feeding information back, and the terminal receiving module receives dynamic environment module videos and other information sent by the management center module and feeds information back to the management center module. The monitoring system has the advantages of stability, no single point of failure, convenience for clients to set up larger-scale monitoring systems, distributed structure, convenience in extension, network integration and capability of providing whole evidence chains for analysis of accident causes.