[GitHub] spark pull request: SPARK-2246: Add user-data option to EC2 script...

[pwendell <gi...@git.apache.org>]

Github user pwendell commented on the pull request:

    https://github.com/apache/spark/pull/1186#issuecomment-50972094
  
    Hey @douglaz - I looked around at the AWS API and it appears that this is a somewhat generic API (i.e. it doesn't necessarily have to contain a script).
    
    ```
    UserData - string - Optional - Optional data, specific to a user’s application, to provide in the launch request. All instances that collectively comprise the launch request have access to this data. User data is never returned through API responses.
    ```
    
    http://docs.aws.amazon.com/AWSSDKforPHP/latest/index.html#m=AmazonEC2/request_spot_instances
    
    I couldn't find much more information than this online. Is this something where a few specific AMI types interpret this as a script and execute it on start-up?



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