Is it possible to launch an EMR cluster into the private subnet of a scenario-2 VPC (http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_Scenario2.html) where a NAT instance is in the public subnet, and where each instance in the private subnet does not have a public IP?
On the one hand, I see "Additionally, you cannot use Amazon EMR through a Network Address Translation (NAT) device, but you can still use a NAT for other traffic in more complex scenarios." at http://docs.aws.amazon.com/ElasticMapReduce/latest/DeveloperGuide/emr-plan-vpc-subnet.html . We also see StackOverflow questions like Create EMR Cluster with No Public IP Addresses that indicate that private clusters are not supported. However, I now understand that S3 is a valid VPC endpoint, and I'm wondering if this has changed the story.
