Abstract
GAIAOS Event Manager is a distributed Event Service; based on CORBA Event Service with a centralized entry point, resulting in limited fault resilience and scalability. In this paper, we. have proposed a decentralized Event Service for GAIAOS through the use of DHT based structured overlay network to overcome these problems. The proposed architecture provides a completely distributed event communication mechanism without any centralized entry point. Incorporation of the structured overlay network in GAIAOS results in higher degree of fault resilience and scalability.