May 2017
Intermediate to advanced
294 pages
7h 33m
English
Content preview from Apache Spark 2.x Cookbook
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In-memory columnar format
As we saw in the previous chapter, file formats such as Parquet already use the columnar format; the same benefits are being realized with Spark using a columnar format in memory. Some of the benefits are as follows:
- Denser storage
- Compatibility with external already columnar formats, such as Parquet TensorFlow
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.