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

摘要

A computer implemented method, computer program product, and computer readable storage medium for decentralizing loads in an event-driven system to minimize energy and cooling costs. This includes receiving a data fluid that processes a plurality of tasks at a plurality in the event-driven system, the system including stateful and stateless elements for processing events, the plurality of tasks consisting of the set 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 for their ability to be decommissioned when their current tasks are migrated to other nodes, while load balancing and energy efficiency parameters are met, and the expected decommissioning time brings advantages such as the cost of decommissioning and the later decommissioning Compensate restart. In addition, tasks investigate whether they are migrating to neighboring nodes to distribute the workload of the task processing and to reduce cooling costs.