130 results about "Client–server model" patented technology

A system and method for caching data and verifying cached data using a client-server model and meta-data. In particular, a client proxy and a server proxy are in communication with each other and with the client and the server, respectively; client proxy meta-data and server proxy meta-data related to the data cached by the client proxy and server proxy, respectively, are calculated and communicated between the client proxy and the server proxy; and the client proxy meta-data and the server proxy meta-data are compared to determine a cache hit or miss.

A Protocol Fax Box (PFB) receives information, determines destinations for the information, and converts the information protocol and data, if necessary, for transmission to the destinations. The PFB has plural interfaces from which it receives and sends data. Upon receiving information on one of its interfaces, the PFB creates a set of objects for handling the transfer of the information from the incoming interface to an outgoing, or destination, interface. A source object handles the incoming communication, a session object handles destination determination, and a destination object handles protocol conversion from the source interface to the destination interface. The session object also logs information regarding each session. The PFB may use a client server model to download information as needed from a network, or have processing be performed on the network.

The invention discloses a parallel data mining method for identifying a mass of mobile client bases. The parallel data mining method includes the steps of building a client value model and a client behavior model, classifying clients according to the client value model and the client behavior model, popularizing assigned preference services to the clients with the high purchasing power and the high potential purchasing inclination, and then achieving accurate marketing. According to the parallel data mining method, the mass of mobile client bases can be identified, the aspects such as Internet surfing time preferences, Internet surfing place preferences and browsed website preferences of the clients can be identified, and the social group classes of the clients can be accurately judged. Clustering and classifying can be rapidly carried out through the adopted parallel clustering algorithm and the adopted parallel classifying algorithm. By means of the parallel data mining method, different strategies can be formulated for the different client bases by an enterprise, and the important guiding function for profit maximization of the enterprise is achieved.

Techniques and mechanisms are provided for maintaining session state information in a client server system. Session state information such as session state, time stamp information, activity state, counters, etc. are generated and updated by a server. The session state information is sent in encrypted form to a client and the client maintains the encrypted information. The client is not able to decipher or alter the encrypted information. The client sends the encrypted session state information in requests to the server. The server is able to respond intelligently using session state information from the client. Session state information no longer has to be maintained or replicated by session state managers associated with servers.

Automation objects are implemented in a client-server model to control operations on one or more client machines from a single machine automation control module, such as a test program. The machine automation control module instantiates machine automation server objects in a server process. The control module can then instruct the server objects to instantiate corresponding machine automation client objects on specified client machines via a connection mechanism. Object-oriented automation classes are provided in a library and may be extended to meet customized requirements of a given testing procedure. Examples of automation objects may include, without limitation, application objects, machine image objects, snapshot objects, file and registry access objects, reboot objects, autologon objects, and command execution objects. Automation objects allow the re-establishment of remote control after the loss of control resulting from a reboot, a relogon, or a disk image restoration, for example. Automation objects may also be used to automate the deployment of software throughout an enterprise.

A network system comprises: a WWW server 40 for executing a server process; a server 10 for providing a proxy server function; a client 20, which is connected to a communication network 30 for accessing the WWW server 40 and the server 10. The server 10 stores a Web file 11 that includes a proxy server function that can be displayed as a Web page by a Web browser, and that can be read and activated by the Web browser. The client 20 incorporates the Web browser that displays a Web page based on the Web file 11, which is downloaded from the server 10 via the communication network 30. When the Web file 11 is read by the Web browser, the proxy server function of the Web file 11 is initiated.

Methods and systems for performing risk checks on electronic orders for securities. According to one embodiment, the method comprises performing risk checks on an electronic order for a security, the electronic order being issued from a client computer to an exchange computer via a network, wherein a risk check engine is logically interposed between the client computer and the exchange computer on the network. According to the illustrative method, at the risk check engine, the electronic order is received and parsed into one of more fields and data within the fields is identified at a network layer. The risk check engine performs one or more risk checks on the data using a processing element at the network layer. If the risk checks are passed, the risk check engine permits the electronic order to be transmitted to the exchange computer. If one or more of the risk checks are violated, the risk check engine rejects the order.

A distributed crawler task scheduling method based on a weighted round-robin algorithm at least includes the following steps: (1) according to different scales, network crawlers are divided into five types of crawlers, i.e. a stand-alone multi-thread crawler, a homogeneous centralized crawler, a heterogeneous centralized crawler, a small-scale distributed crawler and a large-scale distributed crawler; (2) a master-slave architecture is deployed; (3) when a crawler node is connected to a master node for the first time, the master node gives an initial weight to the crawler node; (4) according to the scheduling algorithm based on weighted round-robin, the master node continuously chooses a crawler node and assigns a URL (Uniform Resource Locator) task to be crawled to the crawler node; (5) each time when a URL task is crawled by a crawler node, a result is returned to the master node, and the weight of the crawler node is updated by the master node, and the like. The distributed crawler scheduling policy based on the weighted round-robin algorithm, which is put forward by the invention, is designed for small-scale distributed crawlers and can ensure the load balance of each crawler node and ensure that crawler nodes have flexible scalability and fault tolerance.

The embodiments of the invention relate to the technical field of communications, and particularly relate to a data writing method and a relevant device for reducing the time delay of the data writing process. In the embodiments, after a server network card receives a data writing request command sent by a client server, on the one hand, the server network card directly analyzes the data writing request command, and returns a first data reading command to a client processor, so as to store data to be written into a storage area of the server network card; and on the other hand, the server network card transmits the data writing request command to the server, so that when a second data reading command returned by the server is received, the data to be written can be directly transmitted from the storage area of the server network card to a storage area pointed by a second target address.

When an SIP interface unit of a server apparatus receives an SIP message for call connection from a client apparatus and an SIP message analyzing unit can confirm that the SIP message is normal, a call controller recognizes that an RTP communication is carried out between the client apparatus and another client apparatus and instructs an encrypting capability management unit to determine RTP encrypting information which is used between the client apparatuses. The encrypting capability management unit determines the RTP encrypting information between these client apparatuses based on the instruction. With this arrangement, there can be provided a client-server distributed system that can realize an encrypting security function without requiring a certificate authentification function at a low cost in order to deliver an encrypting key as well as without necessity of holding or managing a certificate and preparing an authenticating server in a system.

An HTTP server is programmed to detect timed-out client requests by inferring states of its client-server connections. These connections, being full-duplex, can each be viewed as including a client-to-server channel and a server-to-client channel. The state of the server-to-client channel can be inferred by examining local server information to determine whether the client-to-server channel is still established. The server processes a request by a client if the inferred state indicates that the server-to-client channel is still established, and the server terminates the client request if the inferred state indicates that the server-to-client channel is no longer established. Consequently, the server does not expend resources by processing timed-out or dead client requests.

The invention discloses a distributed task scheduling method and system, belonging to the computer technical field. The method comprises the following steps: S1, after the client server starts up, alltasks are automatically scanned, a link is established with the intermediate server, and self-information and task information are reported to the intermediate server; S2, that intermediate server obtains the client server information and the task information, and splits a task into a plurality of independent sub-tasks according to the task configuration information, and distribute the task to each client server; S3, the client server executes the sub-tasks assigned by the intermediate server. Through integration of the task scheduling engine in the intermediate server, the dependency relationship of the tasks are conveniently managed. Through the intermediate server, a task is divided into several independent sub-tasks, and the client server is called to execute the assigned task items in parallel to achieve parallel scheduling.

When encryption information including an encryption rule, an encryption range, and an encryption key is input to a server apparatus from a local maintenance console in advance, the server apparatus stores the encryption information in an encryption information setting unit, creates an SIP request message including the encryption information, and transmits the SIP request message to a client apparatus. The client apparatus receives the SIP request message including the encryption information. If confirming normality of the encryption information, the client apparatus sets the encryption information therein. After completion of a setting of the encryption information, the client apparatus transmits a notification of the completion of the setting of the encryption information to the server apparatus. Upon receiving the notification of the completion of the setting of the encryption information, the server apparatus acknowledges the completion of the setting of the encryption information, sets the encryption information therein, transmits the notification of the completion of the setting of the encryption information to the local maintenance console, and causes the local maintenance console to display the completion of the setting of the encryption information.

The invention discloses an online retailer platform based on an ORM framework, comprising a purchase management server, a development management server, a client server, a distributed type transaction coordination server and a central processing server. The purchase management server is responsible for purchase information and performs classification management on the purchase data; the development management server performs development management on the online retailer platform; the client server presents information related to the product to the client according to search contents of the client; the distributed type transaction establishes a server state list which collects the operation states of the purchase management server, the development management server and the client server; the central processing server dynamically distributes the functions of the purchase management server, the development management server and the client server according to the operation state uploaded by the distributed transaction coordination server; and the development management server is based on the ORM frame structure. The online retailer platform based on ORM framework based on the ORM framework realizes the purpose that all servers of the online retailer platform operate equally.