Is java essential to learn Hadoop?

Is java essential to learn Hadoop?          As we all know that Hadoop is built in java. So, basics of java are used at some sectors in Hadoop. It doesn't mean that you should definitely have the complete knowledge regarding java in depth. There are many other concepts in Hadoop you can learn without the help of java, In Hadoop java is used to code on MapReduce.

                  Although you are not good at java programming but have good skills at SQL can also learn Hadoop. There are some concepts like:-

1. pig

2.Hive

1) pig

"pig is a high-level data flow language"

"It is a beheading framework for parallel         computation"

 "It is generally used by programmers and researchers"

2) Hive

"Hive provides ad-hoc querying and data summarization"

"It is a data warehouse infrastructure"

"It is mostly used by data analysts"

                             you can only need to learn pig latin and Hive SQL (HQL) in Hadoop. Both only needs SQL base. HQL is same as SQL that takes queries and changes them into MapReduce jobs.HQL is faster and permissive feature of SQL.

• These two concepts are very easy to learn.                                   
•  More than 80% of the Hadoop projects are depending on pig and hive. 
• Hadoop Online training Free Demo