Amazon EMR configures Apache HBase on Amazon S3 to cache data in-memory and on-disk in your cluster, delivering faster performance from active compute nodes. You can quickly and easily scale out or scale in compute nodes without impacting your underlying storage, or terminate your cluster to save costs and quickly restore it in another Availability Zone.
Apache HBase with support for Amazon S3 is available on Amazon EMR release 5.2.0, and it can be launched using release label “emr-5.2.0” from the AWS Management Console, AWS CLI, or SDK.To use Amazon S3 as a data store, configure the storage mode and specify a root directory in your Apache HBase configuration. Also, it’s recommended to enable EMRFS consistent view . Please visit the Amazon EMR documentation for more information about Apache HBase on Amazon S3 .