October 2015
Beginner to intermediate
254 pages
5h 31m
English
Content preview from Scala Data Analysis Cookbook (new)Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Loading JSON into DataFrames
JSON has become the most common text-based data representation format these days. In this recipe, we'll see how to load data represented as JSON into our DataFrame. To make it more interesting, let's have our JSON in HDFS instead of our local filesystem.
The Hadoop Distributed File System (HDFS) is a highly distributed filesystem that is both scalable and fault tolerant. It is a critical part of the Hadoop ecosystem and is inspired by the Google File System paper (http://research.google.com/archive/gfs.html). More details about the architecture and communication protocols on HDFS can be found at http://hadoop.apache.org/docs/r1.2.1/hdfs_design.html.
How to do it…
In this recipe, we'll see three subrecipes:
- How to create ...
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