Airpal server SESSION_TIME_OUT

[saunakc]

I spun off a Hive cluster in EMR 5.1 and created external table via Putty connection using Hive command line. I am trying to launch the Airpal server from the CloudFormation template https://s3-external-1.amazonaws.com/emr.presto.airpal/scripts/deploy_airpal_env.json. The EC2 instance spun off successfully but the URL for airpal giving me a time out. I made the EMR master node security group allow port 8889 from Airpal EC2 host. Has anything change in the new version of the EMR 5.1 release or restriction on specific EC2 instance type? I can see the Presto port is LISTENing on 8889. Any help appreciated.