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A bootstrap action is a shell script stored in Amazon S3 that Amazon EMR executes on every node of your cluster.
Bootstrap actions execute as the hadoop user by default; they execute with root privileges if you use sudo.
From the Ruby EMR Command Line Interface you can reference a bootstrap action as follows:
--bootstrap-action "s3://myawsbucket/FileName" --args "arg1,arg2"For more information about EMR Bootstrap actions see DeveloperGuide
The code samples in this repository are meant to illustrate how to setup popular applications on Amazon EMR using bootstrap actions. They are not meant to be run in production and all users should carefully inspect code samples before running them.
Use at your own risk.