We use Jira Studio. We have unit tests that require 2GB or more to run. All of the elastic bamboo AMI's we find in EC2 published by atlassian are 32 bit (ec2-describe-images -o 200193376361). In order to use an EC2 instsance with more than 2GB of menory we require a 64bit AMI.
Does atliassian provide such an AMI or do we have to create our own?
