Abstract: A device executing an application in a distributed system may transmit a query for capabilities of one or more components in the distributed system to a capability service and receive a response. Based on the response, the device may determine whether a first capability criteria that is based on a first version of the application is met. If the first capability criteria is met, the device may execute the first version of the application. If the first capability is not met: the device may transmit a subscription request to subscribe to one or more particular capabilities; and optionally may determine a second version of the application for which a second capability criteria is met and execute the second version until receiving a notification to the subscription. The capability service may have a capability store that is updated upon a capability change in the one or more components in the system.

Abstract: A device executing an application in a distributed system may transmit a query for capabilities of one or more components in the distributed system to a capability service and receive a response. Based on the response, the device may determine whether a first capability criteria that is based on a first version of the application is met. If the first capability criteria is met, the device may execute the first version of the application. If the first capability is not met: the device may transmit a subscription request to subscribe to one or more particular capabilities; and optionally may determine a second version of the application for which a second capability criteria is met and execute the second version until receiving a notification to the subscription. The capability service may have a capability store that is updated upon a capability change in the one or more components in the system.

Abstract: This disclosure provides systems and methods for processing remote procedure calls (RPCs). A system can include a first service accessible via a first port and a second service accessible via a second port. The system can include an (RPC) broker coupled to each of the first port and the second port. The RPC broker can be configured to halt the second service at the second port and to restart the second service at a second redirect port. The RPC broker can also be configured to maintain a mapping associating the second port with the second redirect port.

Abstract: Systems for computing cluster management. A boot media source node is connected to a computing cluster. Boot image patching operations commence upon receiving, by the boot media source node, communications from at least one computing node of a plurality of computing nodes of the computing cluster. Such a communication comprises an indication of an address range of a requested segment of a boot image. The boot media source node retrieves a patch to be applied over the requested segment. The overlap range of the retrieved patch and the requested segment are calculated. The boot media source node processes the patch by allocating a segment in volatile memory of the server node, and forming an in-memory patched segment without storing the patched segment to non-volatile memory. The in-memory patched segment is delivered to the requestor and the boot media source node receives next segments from the same or different computing nodes.

Abstract: A computer-implemented method may include identifying a file that includes one or more data blocks stored within a storage device. The computer-implemented method may also include determining that the file has been accessed more frequently than one or more other files stored within the storage device and then tracking the number of times that at least one data block associated with the file is accessed in the storage device. The computer-implemented method may further include determining that the number of times that the data block associated with the file has been accessed in the storage device is above a predetermined threshold. In addition, the computer-implemented method may include caching the data block associated with the file in a caching mechanism to decrease the amount of time required to access the data block. Various other methods, systems, and computer-readable media are also disclosed.