Hadoop is dead. Long live Hadoop.

Though Gartner characterizes Hadoop adoption as "fairly anemic," investment in Hadoop remains robust, both in terms of customer dollars and developer code.

That is, if we define Hadoop in terms of its overarching ecosystem and not in terms of the once essential MapReduce component. Because once we peel away the MapReduce veneer, it becomes clear that Hadoop, the ecosystem that "keeps experimenting," as Cloudera co-founder Mike Olson describes it, is booming. Particularly if we focus on Spark, the most active Apache Software Foundation project ever.

And yet Spark, despite its apparently unstoppable rise, won't b ...

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