Abstract: Embodiments are directed to organizing computing nodes in a cluster federation and to reassigning roles in a cluster federation. In one scenario, a computer system identifies computing nodes that are to be part of a cluster federation which includes a master cluster and worker clusters. The computer system assigns a director role to a master node in the master cluster which governs decisions that affect consistency within the federation, and further assigns a leader role to at least one master node which monitors and controls other master nodes in the master cluster. The computer system assigns a worker agent role to a worker node which receives workload assignments from the master cluster, and further assigns a worker role to a worker node which processes the assigned workload. The organized cluster federation provides fault tolerance by allowing roles to be dynamically reassigned to computing nodes in different master and worker clusters.

Abstract: In one embodiment, a method includes serializing a data set into a binary package. The serializing includes, for each element of the data set, determining whether the element includes a predefined multi-bit element value. The serializing further includes encoding a lead byte comprising a data-type identifier and a value indicator. Responsive to a determination that the element includes the predefined multi-bit element value, the encoding of the lead byte comprises setting the value indicator to a preconfigured indicator of the predefined multi-bit element value, the preconfigured indicator requiring fewer bits to represent than the predefined multi-bit element value. Responsive to a determination that the element does not include the predefined multi-bit element value, the encoding of the lead byte comprises setting the value indicator to a preconfigured value-follows indicator.

Abstract: A method can include detecting a cadence-changing event for a stream of data, the stream of data being provided in chunks having associated chunk boundaries according to an established cadence. An adjusted chunk boundary can be established at a location corresponding to the cadence-changing event to replace a closest scheduled chunk boundary in the stream of data.

Abstract: A system and method for pushing live media to a client device in an adaptive streaming environment. In one aspect, a media server configured to transmit live media includes a storage unit for storing media segments of a live media programming stream, wherein the media segments are encoded at multiple bitrates identified in respective media presentation data structures associated therewith. A websocket interface is provided that is operative to facilitate a websocket session with the client device. One or more processors of the system are operative to execute service logic for pushing the media segments to the client device substantially in real time during the websocket session.

Abstract: The disclosure generally describes computer-implemented methods, computer program products, and systems for providing metadata-driven dynamic load balancing in multi-tenant systems. A computer-implemented method includes: identifying a request related to a model-based application executing in a multi-tenant system associated with a plurality of application servers and identifying at least one object in the model-based application associated with the request. At least one application server is identified as associated with a locally-cached version of a runtime version of the identified object, and a determination of a particular one of the identified application servers to send the identified request for processing is based on a combination of the availability of a locally-cached version of the runtime version at the particular application server and the server's processing load. The request is then sent to the determined application server for processing.

Abstract: Methods for stateless management of object properties and corresponding systems and computer-readable mediums. A method includes executing a presenter module that manages interactions with a user via a view module, and identifying a required object property for the presenter module. The method includes registering the required object property, by the presenter module, in a policy manager module as a property policy. The method includes building a request for a service based on the property policy, sending the request to the service, and receiving a response to the request from the service.

Abstract: A system, method and computer-readable storage devices for providing a climate data analytic services application programming interface. The system includes a programming library that enables client device software to invoke the capabilities of a climate data analytics system through requests to various services supported by the climate data analytics system, and also includes a client-side communications interface that enables the programming library's methods to interact with a climate data analytics system's server interface to obtain access to the capabilities of the system. In one implementation, the programming library is implemented in the Python programming language.

Abstract: Disclosed are a method and device for parsing MMS information. The method includes: determining the storage location information corresponding to a first keyword of the received MMS information; determining keyword information in the storage location corresponding to the storage location information; when the first keyword is identical to a second keyword in the determined keyword information, taking the keyword attribute of the keyword information as the keyword attribute corresponding to the first keyword; and parsing the MMS according to the keyword attribute corresponding to the first keyword. There is no need to conduct a large amount of comparisons when determining the keyword attribute corresponding to the keyword in MMS information according to the correlation between the storage location information and the keyword information, thus the parsing speed and response speed are increased, and the parsing efficiency improved.