Which is better in term of speed Shark or Spark

Question

I am very confused about this two. I know shark is same as hive with 100x faster, work on spark. I want to know the main difference between spark and shark. Which is faster?

When I have to use spark or when shark?????

Answer 1

Spark is a framework for distributed data processing, you can write your code in Scala, Java, and Python. Shark was renamed to SparkSQL and it is some kind of SQL engine on top of Spark - you write SQL queries and they are executed using Spark framework.

Here's Spark programming guide: https://spark.apache.org/docs/latest/programming-guide.html 

Here's Spark SQL guide: https://spark.apache.org/docs/latest/sql-programming-guide.html

So if you write a Spark SQL query, it would be converted to Spark code and executed, which means that in general, you can write a Spark code that would work with the same speed or faster than Spark SQL query.

Hope it will answer your query to some extent.