Software

Efficient Filtering in Publish-Subscribe Systems Using Binary Decision Diagrams

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Executive Summary

Implicit invocation or publish-subscribe has become an important architectural style for large-scale system design and evolution. The publish-subscribe style facilitates developing large-scale systems by composing separately developed components because the style permits loose coupling between various components. One of the major bottlenecks in using publish-subscribe systems for very large scale systems is the efficiency of filtering incoming messages, i.e., matching of published events with event subscriptions. This is a very challenging problem because in a realistic publish subscribe system the number of subscriptions can be large. In this paper the authors present an approach for matching published events with subscriptions which scales to a large number of subscriptions.

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