What is the difference between Apache Spark and Apache Arrow?

Question

What are the differences between Apache Arrow and Apache Spark? Will Apache Arrow replace Hadoop?

Answer 1

• Apache Arrow is a proposed in-memory data layer designed to back different analytical loads.
• Apache Spark is a storage agnostic cluster computing framework.

These two don't belong to the same category and don't compete with each other same as Arrow doesn't compete with Hadoop.