71results about How to "Solve the scalability problem" patented technology

The invention relates to a method for implementing the high availability of the system in a multiprocessor environment. In the multiprocessor environment, one ore M standby computers correspond to N active computers and deliver the standby service for N active computers; when one standby computer corresponds to N active computers, the standby computer monitors the heartbeat with the active computer in the mode of the multicast and the standby computer monitors the working state of the active computers in the mode of the heart beating line; when the standby computer monitors that the active computer malfunctions, the standby computer takes over the work of the active computer and provides the service provided originally by the active computer to the outside so as to implement the continuous application under the circumstance that the user can not feel the service interception. The invention has the beneficial effects that the scalability of the high-availability system is solved and the high availability of the system can be realized with lower cost in a complicated multiprocessor environment having a plurality of applications, and the utilization ratio of the system resources can be enhanced.

The invention belongs to the technical field of network communication, particularly relates to a subnet access method based on an identity-position separate mapping mechanism. The method is used for accessing a terminal into a virtual tree network structure comprising a switch router and a subnet router to realize a micromotion protocol. The method comprises the steps of: establishing the virtual tree network structure in a default route mode; setting the route mode of the subnet router into a host route mode and setting the route mode for accessing the switch router into a policy route mode; and accessing the terminal into the subnet router. By the identity-position separate mapping mechanism, the invention realizes the micromotion protocol, solves the extensible problem of a network route, reduces the switching delay of the terminal among networks, overcomes obstacles existing when a heterogeneous terminal is accessed into a network, and avoids the generation of triangular route.

The present invention discloses a distributed duplicated data deleting system and method based on a Hadoop platform. The system comprises a client, a master node and worker nodes. Distributed parallel duplicated data deleting processing is implemented by a MapReduce parallel programming frame of the Hadoop platform. The implementation method comprises: the client sends a file to the master node; the master node completes file fragmentation and data distribution and construction of a file metadata table; and each worker node, according to fine granularity, performs blocking on data fragmentation, calculates fingerprint values of fine-grained data blocks, carries out query and comparison in an index of a database Hbase, stores new data blocks in a distributed file system HDFS and feeds back index information to the master node. The system and method can have high throughput and excellent expansibility while ensuring a high deduplication rate.

The invention provides an NAT (network address translation) traversal method, system and relay server by a relay mode. The NAT traversal method by a relay mode comprises the following steps: a first host transmits a relay request message to service address of the relay server by utilizing an NAT address through NAT equipment; and the relay server returns a relay response message to the first host, wherein the relay response message comprises an address list, and the address list comprises a relay address and the NAT address.

The invention provides a software-defined data gateway. The software-defined data gateway comprises an equipment layer, a gateway layer and an application layer, wherein all physical devices form a device layer, the data gateway body comprises a management node and a gateway node, the management node is deployed in an application layer, and the gateway node is deployed in a gateway layer; the gateway layer further comprises a sensing node; the physical equipment of the equipment layer reports the data to the sensing node and receives a control instruction issued by the sensing node; the sensing node uploads the data to the gateway node, and transmits a data analysis result to the physical equipment in a downlink manner; the gateway node performs high-speed caching and persistent storage onthe acquired data according to application requirements, and forwards the data to other gateway nodes needing to use the data; the management node detects all gateway nodes, monitors load conditionsand health states of the gateway nodes, and controls starting, stopping and load balancing of the gateway nodes; and data synchronization is performed among the management nodes. According to the software-defined data gateway, industrial Internet-of-things data acquisition, storage and forwarding are realized in a software definition mode.

The invention discloses a web push method based on an event bus. The method comprises the following steps of S1, service container stack address binding; S2, asynchronous processing of messages; S3, releasing of application service messages; S4, web side message subscription; and S5, event bus pushing. The difficulty of upgrading and capacity expanding can be reduced by the technical scheme, and the workload of upgrading can be reduced so that message sending and receiving are enabled to be more timely; the services can be quickly deployed with increasing of the number of the registered users; the concurrency of the system can be enhanced through asynchronous processing; the TPS (transaction per second) of the system can be obviously enhanced; and service calling is safer.

The invention relates to a manageable P2P (Peer-to-Peer) streaming media live broadcasting system based on an IMS (IP Multimedia Subsystem) in an NGN (Next Generation Network) and a realization method thereof. The system provided by the invention expands an overlay network management function entity and a network resource inquiry function entity on a streaming media service layer. The method provided by the invention comprises the following steps: using user terminal equipment capable of carrying out P2P as a calling request to establish a streaming media live broadcasting session; utilizing a streaming media service control function entity as a back-to-back user agent to select a content transmitter for calling user terminal equipment and establish a media transmission session with the content transmitter; utilizing the user terminal equipment capable of carrying out P2P to carry out a channel switching request updating session; and utilizing the streaming media service control function entity to select the content transmitter of a new channel for the user terminal equipment capable of carrying out P2P and establish the media transmission session with the content transmitter of the new channel. According to the invention, the centralized management of a P2P overlay network is realized; the problem of inconformity in a P2P distribution network and a physical network is solved; and simultaneously, the QoS (Quality of Service) of P2P media transmission is ensured by utilizing the SIP/SDP (session initiation protocol/session description protocol) session consultation mechanism in the IMS and the network control and resource reservation provided by the NGN.

The invention discloses a big data platform constructing method based on S-PLUS. A big data platform comprises a physical layer, a virtualization layer, a service layer and an application layer, wherein heterogeneous hardware resources are deployed on the physical layer; Eucalyptus is used to construct a virtual machine cluster on the virtualization layer, and a Hadoop environment is deployed on the virtual machine cluster; the service layer integrates S-PLUS language, realizes a data mining function and provides services; a clear operation interface is provided to a user on the application layer which has the functions of a data storage and processing system, an array operation tool, a complete and coherent statistical analysis tool and excellent statistical cartography. S-PLUS is a simple and powerful programming language and can control data input and output and realize functions of branching, circulating and user customizing. The big data platform can effectively process targets such as information system services, information monitoring and public safety which need to be paid attention to by an intelligent city system, the targets are displayed in a big data manner and results are analyzed, and high processing efficiency is achieved.

A basic feature of the invention is to rely on an AAA infrastructure to 'bootstrap' the HMIPv6 service for a mobile node ( 130 ) that 'roams' in a visited network or the home network. In accordance with a preferred embodiment of the invention, bootstrapping the HMIPv6 service involves authenticating and authorizing the mobile node ( 130 ) for HMIPv6 service based on an AAA infrastructure. In an important scenario, the mobile node is roaming in a visited network, and the AAA infrastructure ( 110, 120, 122 ) links the visited network with the home network of the mobile node. The invention also supports the possibility of having the MAP ( 125 ) located in the home network or other network than the visited network. The reliance on the AAA infrastructure preferably involves transferring HMIPv6-related information required for authenticating and authorizing the mobile node for HMIPv6 service over the AAA infrastructure.

The invention discloses an optimization method and system of an operation and maintenance auditing system. A single sign-on service is adopted in an authentication login module in the operation and maintenance auditing system, and a local login mode is switched when the single sign-on service responds mistakenly, so that a unified authentication process capable of realizing disaster recovery is realized. The object storage structure of a log processing module is optimized, so that the log processing module can be called by different service modules, and the problem of capacity expansion is solved. The problems that the capacity expansion of an operation and maintenance auditing system is difficult and the service is unstable when a springboard machine room accesses are solved by utilizinga load balancing scheme capable of automatically identifying newly-added nodes and deploying the nodes, and meanwhile, the data synchronization process is more optimized by adopting a data synchronization mode of an asynchronous message queue.

The invention discloses a method for multicast control and the method includes the following steps of: receiving a request for joining a multicast group of a first edge node or a request for leaving the multicast group of the first edge node; when the request for joining is received, searching for a nearest joining replication point corresponding to the first edge node; when the request for leaving is received, searching for a nearest leaving replication point corresponding to the first edge node; and reserving bandwidth resource from the searched nearest joining replication point to the first edge node, or releasing bandwidth resource from the searched nearest leaving replication point to the first edge node. The invention also discloses equipment and a system for multicast control. By using a network resource management node to control the multicast admission and release process, the invention realizes the uniform management of multicast bandwidth resource, reduces the interactive transmission of a great amount of management messages in multicast transmission process, dynamically distributes bandwidth and improves the utilization rate of network bandwidth.