Jay Parikh, VP of infrastructure engineering at Facebook, says that real-time processing and graph analysis are the hottest areas of exploration at Facebook. Graph processing is where Facebook is innovating.

“Everything in Facebook is modeled as a social graph, and it’s a completely different way to model data than is used in the relational world,” Parikh explains. “We’re trying to develop more powerful ways to query the graph. MapReduce requires a lot of iteration and it’s non-intuitive.”

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