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Parquet (http://parquet.io/) is an ecosystem wide columnar format for Hadoop. Read Demel made simple with Parquet for a good introduction to the format itself. At the time of this writing Parquet supports the follow engines and data descrption description languages:
Engines
- Apache Hive
- Apache Drill
- Cloudera Impala
- Apache Crunch
- Apache Pig
- Cascading
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