What is RDD in spark

Question

Definition says:

RDD is immutable distributed collection of objects

I don\'t quite understand what does it mean. Is it like da

Answer 1

RDD is an Resilient Distributed Data Set. It is an core part of spark. It is an Low Level API of spark. DataFrame and DataSets are built on top of RDD. RDD are nothing but row level data i.e. sits on n number of executors. RDD's are immutable .means you cannot change the RDD. But you can create new RDD using Transformation and Actions