Looking to build a BigData platform? Here is an infrastructural checklist that you should build:

• Scalable structured DB (PotsgreSQL is a good choice)
• Scalable unstructured DB (MongoDB)
• Streaming data (Apache Storm)
• In-memory data processing (Apache SparkSQL and RDD)
• Machine learning (Spark MLLIB)

Also Python and associated libraries: although its not a big-data tool in itself python is a great language with readily available packages to interact with most big-data tools.

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