Decentralized load sharing to reduce energy and / or cooling costs in an event-driven system

摘要

Computer-implemented method, computer program product and computer-readable storage medium for the decentralized arrangement of loads in an event-controlled system in order to minimize energy and cooling costs. This includes receiving a flow of data that is processed by a plurality of tasks at a plurality in the event-driven system, the system containing stateful and stateless elements for processing events, the plurality of tasks being selected from the set consisting of hierarchical tasks (a task that depends on the output of another task), non-hierarchical tasks (a task that does not depend on the output of another task), and mixtures thereof. Nodes are examined to see if they can be decommissioned if their current tasks are migrated to other nodes while the load balancing and energy efficiency parameters are met and the expected duration of the decommissioning brings benefits that include the cost of the decommissioning and later Compensate for restart. In addition, tasks are examined to see whether they migrate to neighboring nodes in order to distribute the system load of task processing and to reduce cooling costs.