Michelangelo D'Agostino created SPARK-10157:
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             Summary: Add ability to specify s3 bootstrap script to spark-ec2
                 Key: SPARK-10157
                 URL: https://issues.apache.org/jira/browse/SPARK-10157
             Project: Spark
          Issue Type: Improvement
          Components: EC2
            Reporter: Michelangelo D'Agostino
            Priority: Minor


One of the nice features of using EMR to start spark clusters is that you can 
specify bootstrap actions to run on each node. This is useful for installing 
custom libraries, etc. However, you pay a per-node/per-hour premium for using 
EMR (https://aws.amazon.com/elasticmapreduce/pricing/).

This pull request adds the --bootstrap-script flag to the spark-ec2 script. 
This flag specifies an s3 path to a shell script. The script is downloaded and 
run on each node during the setup process. The flag can be specified multiple 
times for multiple bootstrap actions.



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