Hello Azeltov, thank you for the instructions. I've managed to start sandbox on an EC2 instance. Logged into Ambari however, it says Heartbeat lost against most services. See screenshot below. I believe I'm very close to exploring HDP Sandbox so any advice on this problem will be really helpful. Also I noticed on the hosts tab that the RAM allocated is 7.69GB. I've configured an m3.xlarge instance which has 15GB memory so how do I reallocate more memory to the sandbox? Thanks, Amit ... View more