How Spark Execute chaining vs no chaining statements

[Ashish Soni]

Hi All ,

What is difference between below in terms of execution to the cluster with
1 or more worker node

rdd.map(...).map(...)...map(..)

vs

val rdd1 = rdd.map(...)
val rdd2 = rdd1.map(...)
val rdd3 = rdd2.map(...)

Thanks,
Ashish