366 results about "Daemon" patented technology

A computerized system and method for processing network content associated with multiple virtual domains. The processing may include anti-malware scanning and/or content filtering. The content associated with multiple domains may be processed in the same daemon process. In response to connection requests from virtual domains, the service process creates separate sockets to communicate with each virtual domain. A global configuration management module is used to provide configuration parameters for each session to the service process. A logging manager processes both the global logs and the logs from each virtual domain. Alternatively, the service process may initiate other service processes to handle incoming connections from one or more virtual domains, in order to better utilize resources in a multiple-CPU environment. Different service processes may be used to handle various aspects of content processes, for example one process may handle anti-malware scanning, while another process may handle content filtering.

A method, data processing system and computer program product provide scalable data synchronization for a virtual input/output server (VIOS) cluster and one or more registered callers. A first VIOS is commits as a primary node of the VIOS cluster and performs the functions of: registering one or more callers to receive notification from the first VIOS of specific events occurring within the cluster; receiving notification of an occurrence of one of the specific events; and in response to receiving notification of the specific events, a deamon of the first VIOS retrieving a message payload file from a message payload file directory within the shared VIOS DB and passing the message payload file to the API, which forwards/posts the relevant event notification information from the message payload file to the TCP socket of each registered caller.

The invention discloses a device management framework based on an android platform. The device management framework comprises an application program layer, a management service module, a management daemon process module, a function dynamic depot layer and an inner core drive layer, wherein the application program layer is used for realizing calling an interface of the device management framework; the management service module is used for converting the function interface into a command call, and transmitting a command by using a Local Socket client end of a Socket in an Android; the management daemon process module receives the command by using a Local Socket service end of the Socket in the Android, analyzes the command, and calls the function dynamic depot layer according to the analysis result; the function dynamic depot layer is used for packaging an interface which is interactive with the inner core drive layer; the inner core drive layer is used for providing a standard operation interface of a Linux operating system to be called by the function dynamic depot layer, and operating each hardware device.

A method for enabling dynamic response to I/O failure caused by an out-of-space condition in a file system hosted on a logical volume. An I/O failure response (FR) daemon is implemented to bridge operations between the Logical Volume Manager (LVM) executing in user space and I/O control functions executing in the kernel space. When the file system does not have sufficient space to complete an I/O, the I/O controller signals the I/O FR daemon, which executes the following sequence of operations: (1) alert the LVM that the file system requires additional space; (2) provide a notification to the application level about the resizing; and (3) re-start the I/O operation once the resizing operation completes. The LVM receives the alert and initiates an automatic expansion of the file system to include additional storage space from reserve space on the volume group. The I/O is completed once the expansion operation completes.

The invention relates to a method for rapidly deploying an extensible cluster. The method is implemented by using a modified DHCP server, a command line tool and a node daemon, wherein the modified DHCP server is responsible for distributing IP addresses and assigning TFTP server addresses for nodes to be deployed, intensively managing all nodes which are being deployed and are deployed successfully and preferentially selecting a node with the lightest load from the successfully deployed nodes while selecting a TFTP server; the command line tool can dynamically modify configuration information read in when the DHCP server starts so as to make use of hardware resources of the deployed nodes in a better way and perform a deploying process stably; the node daemon is downloaded from a main deployment server after the installation of a script in kickstart is completed, runs automatically and is responsible for reporting the state of the node daemon to the main deployment server, downloading a necessary file, starting TFTP and NFS services and the like. The method can adapt to the extension of cluster scale, achieves deployment effect which becomes more remarkable along with the extension of the cluster scale, has a flexible operation and controls an entire deployment process by configuring files or command lines.

The invention discloses a Daemon applied server and a remote control method, which belongs to the remote control field of computers. The Daemon applied server of the invention comprises an information receiving module, an information processing module and an information feedback module which are connected in turn, wherein the information receiving module is used to receive various request information in concurrency type from user ends, and various request information is sent to the information processing module according to the receiving sequence or priority level sequence, the information processing module is applied in utilizing system function to process mechanism response and process various request information of user ends, the information feedback module is used to return the request information processing results to client ends. The invention achieves type independence between client end requests and applied server operation systems, and meanwhile, the applied server which is provided by the invention has very excellent expandable property, automatic upgrading function, service agent mechanism and easy construction.

The invention discloses a hardware counter virtualization-based performance analysis method for multiple virtual machines. The method comprises the following steps of: when performance analysis is performed on multiple virtual machines at the same time and the multiple virtual machines need to occupy hardware counters, if the total number of central processing unit (CPU) events analyzed by multiple virtual machines surpasses the number of the hardware counters, virtualizing the hardware counters so as to meet requirements, otherwise, not virtualizing the hardware counters; and acquiring sampling information on the manager layer of an Xen virtual machine through a sampling mechanism, distributing the information to buffer zones which correspond to the virtual machines and analyzing and processing the information by using user layer programs of the virtual machines so as to obtain corresponding analysis result and detailed performance information. A request, which is used for starting or stopping performance analysis, of each virtual machine is monitored by a background daemon, Xenstore is taken as a message sending mechanism among the virtual machines, virtualization of the hardware counters is realized by time-sharing multiplexing technology, convenience is brought to program performance analysis in a virtual environment, and analysis accuracy is ensured well.

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.

A method and apparatus are disclosed for browsing one or more Management Information Base (MIB) objects that are stored in a network device, such as a router or switch. In one embodiment, the network device receives a connection of a Web browser at an HTTP daemon and further receives a request from the Web browser to obtain the current value of the MIB variable. The request may be sent in a Hypertext Transfer Protocol (HTTP). The HTTP daemon passes the request to an HTTP-SNMP interface. The HTTP-SNMP interface creates an SNMP query for the current value of the MIB variable and sends the query to an SNMP daemon of the network device. The SNMP daemon obtains the current value of the variable from a MIB of the network device. The network device then returns the current value of the MIB variable to the Web browser which can display it.

Disclosed in the present invention are an inter-process communication method based on an application layer of Android and a basic application communication system. In accordance with a client/server communication mode, frame encapsulation applications for the mutual communication between system-level applications and user applications are created and virtualized as a client side; a daemon process IPC Service is created and virtualized as a server side; registration and binding of the IPC Service are completed through the applications, so as to achieve mutual communication among every application. Through the adoption of the technical solution of the present invention, a special communication mechanism can be rapidly and safely built during the inter-process communication of every application.

A method, system and computer program product for selecting an optimal transport protocol in a cloud computing environment. An application creates a socket to communicate with a destination Virtual Machine (VM). The application requests a daemon agent to query a virtual machine manager to determine if the destination VM is on the same hypervisor as the application. The daemon agent receives a VMCI address (“context ID”) and an indication of the hypervisor associated with the destination VM from the virtual machine manager. The daemon agent enables the transport layer to route traffic over the VMCI protocol to the destination VM using its context ID in response to the destination VM being on the same hypervisor as the application. In this manner, the application is able to route traffic using an optimal transport protocol, including VMCI, depending on peer hypervisor association without requiring any code modifications to the application.

The invention discloses a unified platform with a northbound interface, which comprises a NMS CORBA module, an EMS CORBA module, an EMS SNMP module, an EMS Adaper for NBI module and a unified daemon process module; wherein, the unified daemon process module is used for starting, guarding and closing the EMS Adaper for NBI module, the EMS SNMP module, the EMS CORBA module and the NMS CORBA module. The starting method of the unified platform is choosing an installation module according to the permission information obtained by the user, and then modifying the unified allocation file of the northbound interface after the successful installation to cause the unified platform with a northbound interface to start normally. The unified platform with a northbound interface of the invention provides a CORBA supported by the EMS and the NMS northbound interface function and a SNMP supported by the EMS and the NMS northbound interface function. The platform is simple in installation process which can be installed in one trial. Meanwhile, the starting parameter only depends on one unified allocation file, which decreases the complexity and error probability, reduces the cost and simplifies the configuration.

A system and associated method write data from an in-memory database to a disk database in an efficient manner and with a relatively short lag time. The integration of data from in-memory to disk is achieved by limiting the operations of the in-memory database to insert only. The system shortens lag time by reducing the number of transactions required to transfer data from in-memory database to disk memory. The system compiles into an RDBMS, knowledge about the structure of the in-memory database, and then uses the end of the transaction callbacks from the RDBMS to keep the in-memory database and the disk memory in synch. The RDBMS includes a daemon that runs periodically to find records in the in-memory database that have not yet been written to the RDBMS, and then writes the found records to the RDBMS as part of a single transaction. If the transaction completes successfully, the in-memory database is updated to reflect which records have been “flushed” to the RDBMS. If the transaction fails, no action is taken. The present system synchronizes the in-memory database with the RDBMS.

The invention discloses a user-mode file system reqeust processing method, including sending data write request to kernel daemon to make kernel daemon directly write data to be written into data file,and establishing mapping table according to mapping relation between accessed actual file and data file, sending data write request to kernel daemon to make kernel daemon directly write data to be written into data file, and sending data write request to kernel daemon; then using the kernel daemon to send a metadata write request to the kernel daemon so that the kernel daemon writes the established mapping table into the metadata file; if the request is an actual file read request, using the kernel daemon to send a metadata read request to the kernel daemon so that the kernel daemon reads themapping table from the metadata file; sending a data read request to the kernel daemon to cause the kernel daemon to read the requested data directly from the data file according to the read mappingtable. The invention can reduce the switching times between the user state and the kernel state in the process of reading/writing the data file, and improve the data transmission performance.

The invention discloses an improved mobile terminal application testing method and system. A computing device is connected with a plurality of mobile terminals for testing applications. The method comprises the steps that an Android debugging bridge (ADB) daemon process is deployed to each mobile terminal; an ADB service is deployed to the computing device, and a plurality of ADB client sides independent from the ADB service are deployed; the multiple ADB client sides correspond to the multiple ADB daemon processes on the multiple mobile terminals one to one; each ADB client side sends an instruction to the ADB daemon process on the corresponding mobile terminal through the ADB service; each ADB daemon process executes the received instruction and returns a result back to the ADB service. According to the technical scheme, the problem that an existing computing device cannot be stably connected with multiple mobile terminals can be effectively solved, and the testing efficiency and stability are greatly improved.

The embodiment of the invention discloses an automatic driving test method and device, computer equipment and a storage medium, and the method comprises the steps that parameters for testing an automatic driving program are set in response to a request for testing the automatic driving program in a first cloud service, wherein the parameters comprise scene data collected by a real vehicle when thereal vehicle drives on a road surface; a machine for testing the automatic driving program is selected from the second cloud service, and a daemon process runs in the machine; in the second cloud service, the daemon process reads the parameters from the first cloud service; and the daemon process simulates the operation object and executes automatic driving on the virtual vehicle in the scene data according to the parameters so as to test an automatic driving program. The real scene is used as the test scene, and the daemon process simulates the operation object to execute the test operation,so that the test process of the whole automatic driving program is closer to the real drive test process of automatic driving, and the obtained test result is more real and reliable.

The invention discloses a data access method and a system, which are applied to a Spark, the Spark integrates an LLAP daemon. The method comprises the following steps of: receiving a data query statement; using the Apache Ranger LLAP plug-in, the access control rules stored in the Ranger being obtained; obtaining a data access plan corresponding to the data query statement by using the LLAP daemon; using the LLAP daemon, the data access plan being executed according to the access control rules. A Spark in the invention utilizes an integrated LLAP daemon to read data, and through Apache Rangerto LLAP daemon access rights control, Spark data fine-grained access rights control then can be achieved to protect the security of Spark data fine-grained access.

The invention discloses an implementation method for a software watchdog based on message monitoring. The method mainly covers two parts, namely a software watchdog of an application process and a system watchdog, wherein the main core of the two parts is message monitoring, namely a method based on message interaction. The system watchdog starts with the system and is loaded in a way of a drive module, an interface which can be read and written by a monitoring process is created and is used for receiving a message of the monitoring process. The software watchdog of an application layer is used for implementation of a daemon process, the effects of the daemon process in the system are process monitoring and message distribution, all processes in the system register one watchdog message and establish a message connection channel with the daemon process, and the daemon process records status information of each process. According to the implementation method for the software watchdog based on message monitoring, the system state and the process state can be simultaneously monitored, so that the software system is more stable, compatible and reliable.

The invention discloses a multi-person cooperative interaction and perception method in a medical virtual reality training scene, and belongs to the field of interaction and perception. The method comprises the steps of constructing a multi-person collaborative virtual environment composed of a plurality of clients and a server; when the operation of a certain client causes the change of the spacecoordinates and direction of an object, the client side generates a Socket sub-process; data format information is sent to a server frame by frame, after a daemon process of the server receives the information, the data is sent to other clients in a UDP broadcasting mode; after the other clients receive the data, the latest spatial position or state change of the object is synchronously updated frame by frame, and the collaborative perception function of all the clients is achieved. According to the method, multiple users with different medical roles are supported to cooperatively operate andperceive in the same virtual operation scene at the same time, so that when any user operates the virtual object, the state and continuity change of the virtual object can be synchronized to other users in real time, and then mutual perception among the multiple users is realized. The method is suitable for the field of medical virtual reality training.