Amazon EMR Release 6.2 now supports improved Apache HBase performance on Amazon S3, and Apache Hive ACID Transactions on HDFS and Amazon S3

Amazon EMR Release 6.2 now supports improved Apache HBase performance on Amazon S3 with persistent HFile tracking, and Apache Hive ACID transactions on HDFS and Amazon S3. EMR 6.2 contains performance improvements to EMR Runtime for Apache Spark, and PrestoDB performance improvements. 

Source:: Amazon AWS