Nowsdays DAM solutions a Google, Facebook, LinkedIn, eBay, Amazon didnot use the traditional data warehouse products for dAM a Why? CAP theorem Different assumptions lead to different solutions a What? ◆ Massive parallism a Hadoop Map Reduce paradigm rhade a UC Berkeley shark/spark Soar k Lightning-fast cluster comput 2021/1/30 同济大学软件学院2021/1/30 7 Nowsdays DAM solutions ◼ Google, Facebook, LinkedIn, eBay, Amazon... didnot use the traditional data warehouse products for DAM. ◼ Why? CAP theorem ◆ Different assumptions lead to different solutions ◼ What? ◆ Massive parallism  Hadoop MapReduce paradigm  UC Berkeley shark/spark