Red Hat, Inc.

Red Hat Israel, Ltd.

Martin Vecera

Jiri Pechanec

Stefan Bunciak

Miroslav Jaros

Filip Nguyen

Radoslav Husar

Lukas Petrovicky

Jirí Pechanec

Lenka Vaskova

Pavel Macik

Marek Baluch

Certain aspects and features provide generation or simulation of sensory data that would otherwise come from Internet-of-things (IoT) sensors in reproducible and controllable way. Thus, the response of a system to very large numbers of sensors can be tested without acquiring and deploying a very large number of sensors for test and development purposes. In some examples, a processing device coupled to a network interface identifies a stored function of time describing a locally sensed property for a simulated sensor. The locally sensed property corresponds to at least one event taking place in a virtual environment. The processing device can determine values of an input variable produced by the stored function of time. The values can be wrapped in a communication protocol to produce messages that are transmitted over the network interface.

Sensory data generator

Systems and methods of the disclosure include: identifying, by a processing device, a plurality of services of a cloud computing environment, wherein each service of the plurality of services employs one or more virtual execution environments; generating a plurality of graphs, wherein each graph of the plurality of graphs represents a service of the plurality of services, wherein each graph comprises a plurality of nodes, such that each node represents a corresponding virtual execution environment of the one or more virtual execution environments employed by the service, and wherein each node is associated with a computing resource usage indicator reflecting a usage of a computing resource by the corresponding virtual execution environment; and determining, using the plurality of graphs, a set of servers for running the plurality of services.

Optimizing services deployment in a cloud computing environment

Parameters associated with a distributed network are received. A topology of a virtual network that corresponds to the distributed network is generated in view of the received parameters. The topology of the virtual network is configured to simulate the distributed network and a simulation of the distributed network is executed using the configured virtual network.

Virtual network layer for distributed systems

Responses of software applications to spatiotemporal events can be tested using simulated environments. In one example, a system can generate a simulated environment having simulated distributed devices positioned at various spatial locations in the simulated environment. The system can then simulate a spatiotemporal event propagating through the simulated environment by modifying a device simulation property of each simulated distributed device based on the spatiotemporal event and a respective spatial location of the simulated distributed device in the simulated environment. This can produce simulation outputs impacted by the spatiotemporal event. The system can then provide the simulation outputs as input to a target software application to test a response to the spatiotemporal event by the target software application.

Testing responses of software applications to spatiotemporal events using simulated environments

A mechanism for referencing a portion of a document. A method includes identifying, by a processing device of a user device, a portion of a document, the portion selected by a user of the user device. The method also includes displaying, by the processing device, the selected portion of the document as a graphical representation of an icon on the user device. The method also includes detecting, by the processing device, a reference to the icon displaying the selected portion of the document, the reference performed by the user. The method further includes providing, by the processing device, the referenced selected portion of the document associated with the icon to the user.

Referencing a portion of a document

An apparatus and a method for sending a message from an enterprise service bus (ESB) is described. A message is formed at an enterprise service bus (ESB) of a computer system. The message is transmitted from the ESB to different ESBs through a User Datagram Protocol (UDP) multicast.

UDP multicast over enterprise service bus

A method includes receiving a voice command, determining, by a processing device, a first loudness parameter associated with the voice command, generating a voice response to the voice command, and determining a target loudness parameter associated with the voice response in view of the first loudness parameter associated with the voice command.

Voice-controlled assistant volume control

A system and a method are disclosed for self-organizing ad-hoc workflow. In one implementation, the present disclosure describes a self-learning system that monitors input conditions and monitors user steps in executing the ad-hoc workflow. When a new user executes the ad-hoc workflow process, the system receives a group of values for a set of input parameters, determines whether the received group of values has a matching group of values in a database, locates groups of values in the database with at least one matching value of the received group of values, determines a closest match between the received group of values and the located groups of values in the database using importance weights of input parameters in the set of input parameters, and selects the workflow associated with the closest match of the received group of values.

Self-organizing workflow

An example method of preserving a modification to an internal state of a computer system includes applying an overlay on a target container. The overlay includes a set of events corresponding to a first set of modifications to a computer system. The method also includes after applying the overlay, receiving a set of user requests corresponding to a second set of modifications to the computer system. The method further includes changing, based on the set of user requests, the third set of internal states of the computer system to the fourth set of internal states. The method also includes removing the overlay from the target container, while preserving the second set of modifications to the computer system.

Preservation of modifications after overlay removal from a container

Systems and methods are disclosed for executing a clustered method at a cluster of nodes. An example method includes identifying an annotated class included in an application that is deployed on the cluster of nodes. An annotation of the class indicates that a clustered method associated with the annotated class is executed at each node in the cluster. The method also includes creating an instance of the annotated class and coordinating execution of the clustered method with one or more other nodes in the cluster. The method further includes executing, based on the coordinating, the clustered method using the respective node's instance of the annotated class.

Execution of a method at a cluster of nodes

A device includes a processor and a memory comprising machine readable instructions that when executed by the processor, cause the system to display information to a user through a display screen of the device, the display screen being positioned on a front side of the device, receive a first input from a first sensor placed on a left side of the device, the first input indicating a placement of at least one appendage along the first sensor, receive a second input from a second sensor placed on a right side of the device, the second input indicating a placement of at least one appendage along the second sensor, and execute a predefined function within an application running on the device, the predefined function being based on both the first input and the second input.

User interface for a device

A debugger executes on a computer system to receive a first debugging command from a client, where the first debugging command sets a first instruction in the reactive application to suspend execution of the reactive application, and where during execution of the reactive application the first instruction is triggered which suspends execution of the reactive application. Responsive to the execution of the reactive application being suspended, a system clock of the reactive application is replaced with a substitute clock and the substitute clock is paused. The debugger then receives a second debugging command, where the second debugging command triggers a second instruction in the reactive application to continue execution of the reactive application. Responsive to the execution of the reactive application being continued, clocking of the substitute clock is continued.

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Brno, Czechia

Martin Vecera