What is spark etl?
Does spark replace hadoop?
Is cache an action in spark?
Why is spark so fast?
Is apache spark a database?
Do I need to learn scala for spark?
Is spark based on hadoop?
What is amazon spark?
What is spark context spark session?
What is difference between spark and hadoop?
Does spark use hive?
What is spark shuffle?
What causes breaker to spark?
Do I need to know scala to learn spark?
Does spark need hdfs?