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Will Spark leave Hadoop behind?

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One thing you must note before starting your Hadoop certification course is that Hadoop is essentially a parallel data processing software framework that is being used for map/reduce functions. However, Spark is aimed to run on the top of Apache Hadoop, which is primarily used for real-time processing. Note that Spark is an alternative to Hadoop (For MapReduce) not a replacement. To know more about the differences, go through this blog on Hadoop vs. Spark.

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