Social networks generate colossal amounts of data that have come to defy the use of conventional data-processing tools, so it's no wonder their engineering teams have built their own toolsets -- such as Facebook and its machine-learning tools.
Enter LinkedIn, now offering its own Apache-licensed, open-sourced data-processing solution: Pinot, a real-time analytics engine and datastore, designed to run at scale. Yes, Hadoop is one of its data sources, providing yet another option for those looking to perform SQL-style queries.
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