http://www.hdfstutorial.com/input-file-formats-in-hadoop/

http://www.slideshare.net/HadoopSummit/file-format-benchmark-avro-json-orc-parquet

http://www.slideshare.net/StampedeCon/choosing-an-hdfs-data-storage-format-avro-vs-parquet-and-more-stampedecon-2015

https://blog.cloudera.com/blog/2016/04/benchmarking-apache-parquet-the-allstate-experience/

https://drill.apache.org/docs/parquet-format/

http://www.svds.com/how-to-choose-a-data-format/

http://www.svds.com/dataformats/