Adv Spark Programming

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Which of the following is not right way of controlling number of partitions?


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4 Comments

Sujeet Pathak
 5 years ago 

please explain the answer

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Satyajit Das
 5 years ago 

I hope you know the usage of the map() function.

map() is a transformations opearations!
Map() operation applies to each element of RDD and it returns the result as new RDD after mapping. 

It won't create any partitions, 

All the best!

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Radhika Mathur
 5 years ago 

hashPartitioner and RangePartitioner are not really increasing or decreasing the number of partitions, are they? They are only repositioning data in multiple partitions. Please clarify this.

Thanks.

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Hrithik Sharma
 a year ago 

I think in "Adv Spark Programming - Custom Partitioner" from 3 partitions we made two partitions using hash partitioner.

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