Abstract: Systems and methods are described for a streaming data processing system that defers processing of some data based on a determined importance of the data. A streaming data processing system can ingest a data stream that contains multiple events, and can extract data field values from individual events and process the data field values to determine event importance. The streaming data processing system can then do further processing and indexing of high importance events, and can generate a storage prefix for each low importance event that determines where to store the low importance event in a data storage system. The streaming data processing system can then process queries by retrieving the indexed high importance events, and can extract the data field values from a high importance event to determine the storage prefix for retrieving corresponding low importance events from the data storage system.

Abstract: A machine data validation system can track and validate the integrity of machine data generated by machines. The system can generate hashes for the items and batch hashes that can be validated using an immutable data store, such as a blockchain. The system can implement a tiered blockchain structure to efficiently store and reference the hashes to validate the machine data at different times or upon request from an end-user.

Abstract: The agricultural roller has three rolls mounted in a triangular overlapping operable configuration. The wing rolls are movable about a pair of spaced-apart transversal articulations between the wing roll frameworks and a central framework enclosing the central roll. The transversal articulations are positioned near a respective end of the central roll such that adjacent roll ends move up and down in unison. The central framework is also movable about a longitudinal articulation across the rear end of a trailer frame. The diameter of the central roll is larger than the diameter of wheels on the trailer frame such that the wheels are raisable off the ground when the rolls are deployed in an operable mode. In a towable configuration, the central roll is moved above the trailer frame and the wing rolls are moved above the central roll with their respective axes aligned forwardly.