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2. 14 June 2012. Motivation. Distributed information aggregationBuilding block for many large-scale applicationsExamples: Resource scheduling, File location, Multicast, etc.An important issue: when do you aggregate?Proactive (push): Aggregate on updates/writesE.g.: Astrolabe, GangliaReactive (
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1. Shruti: A Self-Tuning Hierarchical Aggregation System