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

To compare RDD with scala collection, below are few differences

1. Same but runs on a cluster
2. Lazy in nature where scala collections are strict
3. RDD is always Immutable i.e., you can not change the state of the data in the collection
4. RDD are self recovered i.e., fault-tolerant