[GitHub] incubator-spark pull request: Add c3 instance types to Spark EC2

[shivaram]

Github user shivaram commented on the pull request:

    https://github.com/apache/incubator-spark/pull/595#issuecomment-35017225
  
    LGTM - I wasn't able to figure out if c3 instances were pvm or hvm -- The 
EC2 wizard seem to suggest they are both, so I think this should be fine.