Hi - We (at Cloudera) just posted a blog on a performance comparison between EBS and S3 storage for Impala:
http://blog.cloudera.com/blog/2016/09/apache-impala-incubating-on-amazon-performance-and-cost-considerations-for-s3-vs-ebs/ This is a follow-on from our post on S3 support and performance in Impala: http://blog.cloudera.com/blog/2016/08/analytics-and-bi-on-amazon-s3-with-apache-impala-incubating/ Hope you find these interesting! Henry
