What does reduce action do in Spark

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Can anyone explain what does reduce action do in Spark?
Jul 4, 2019 in Apache Spark by kanika
 • 648 views

1 answer to this question.

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Hey,

Reduce action converts an RDD to a single value by applying recursively the provided (in argument) function on the elements of an RDD until only one value is left.

answered Jul 4, 2019 by Gitika
 • 65,770 points

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