Apache Spark

Features

• Real time processing: it uses in memory computation, which makes it really fast.
• Generality: combines SQL, streaming and complex analytics
• Speed: 100x faster than Hadoop
• Deployment: easily deployed
• Ease of use: Application be written easily in java, scala, Python, R and SQL.
• Powerful caching: provides powerful cache system.

Questions:

1. How are spark and Hadoop connected? I thought its completely different big data platforms. While downloading it asked for Choose package type: Pre-built for Apache Hadoop 2.7, what is the meaning of this?

Data warehousing and Data management BigData