How much Java knowledge is required for a Hadoop developer?

Do You Need Java To Learn Hadoop?

It’s True, Hadoop is built on Java. But you do not need to be a Java

programmer to work on Hadoop.

The Two important of Hadoop components endorse the fact that you can

work with Hadoop without having functional knowledge of Java

in Pig and Hive.

What is the future of Hadoop?

The future of Hadoop is bright. I say this because of the ecosystem.

The Applications that are used to built on top of Hadoop are catering to

almost every kind of use case.

The Adoption of Hadoop by organizations within their core data and teams

for the increase. The more the adoption are better to the future.

Which is better to learn as a newcomer, SQL or Big Data? Why?