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Description
The rapid growth of sense-and-respond applications and the emerging cloud computing model present a new challenge:
providing publish/subscribe as a scalable and elastic cloud service. This paper presents the BlueDove attribute based publish/subscribe service that seeks to address such a challenge. BlueDove uses a gossip-based one-hop overlay to organize
servers into a scalable cluster. It proactively exploits skewness in data distribution to achieve high performance. By assigning
each subscription to multiple servers through a multidimensional subscription space partitioning technique, it provides multiple candidate servers for each publication message. A message can be matched on any of its candidate servers with one hop
forwarding. The performance-aware forwarding in BlueDove ensures that the message is sent to the least loaded candidate
server for processing, leading to low latency and high throughput. The evaluation shows that BlueDove has a linear capacity
increase as the system scales up, adapts to sudden workload changes within tens of seconds, and achieves multifold higher
throughput than the techniques used in the existing enterprise and peer-to-peer pub/sub systems.