Adaptive query processing in data stream management systems under limited memory resources
Fatima Farag, Moustafa A. Hammad, Reda Alhajj · 2010
Many data stream sources are prone to periods of spikes in volume as well as periods of delays and silence. Because peak load during a spike can be orders of magnitude higher than a typical load, fully provisioning data stream monitoring system with all needed resources is generally difficult to achieve. Furthermore, data stream sources are subject to network delays and congestions as they connect to a data stream monitoring system over shared communication channels. Careless management of delays and periods of silence will eventually drop system performance drastically.