Dynamic component placement in an event-driven component-oriented network data processing system

Abstract

Method, system and computer usable program code for dynamic component placement in an event processing system having producers, consumers, a plurality of nodes between the producers and the consumers, and a flow graph representing computational components to be executed between the producers and the consumers. A description of a change to the system is received. At each node, next-hop neighbor nodes for each consumer are identified. A routing value is assigned to each next-hop neighbor node for each consumer. Using the routing values in a context of the change, a performance cost of the system is estimated based on hypothetical changed placements of the computational components at nodes along paths from a producer to a consumer through the next-hop neighbor nodes for each consumer, and a changed placement of the computational components that minimizes performance cost of the system relative to the hypothetical changed placements is selected.