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I'm not sure if this is the same thing, but there's also a new company called Hadapt (the commercialization of HadoopDB). It's about adapting Hadoop for real-time analytic SQL queries by putting local SQL dbs on the Hadoop nodes and then using the Hadoop plumbing. It's based on Daniel Abadi's research, he's a really smart guy.

The high-level difference is that anything Hadoop-based is oriented around "give me a job to run, I'll go crunch over the data, and spit the result back to you."

In "realtime" analysis, you tell the system "these are the queries I want you to run" and it continuously updates those with answers as data arrives.

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