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Comment on Ask HN: Does (or why does) anyone use MapReduce anymore?

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It definitely played its role in high lighting what most functionish coders already knew: that map/filter/reduce is an awesome model for data processing pipelines.

Huge caveat to this: systems like Hadoop accomplish the parallelization by adding keys, and those FP constructs don't broadly have this. It's better to think of it as parallel divide-and-conquer.

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