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https://issues.apache.org/jira/browse/SPARK-8596?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14613273#comment-14613273
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Shivaram Venkataraman commented on SPARK-8596:
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Some points that might be helpful

1. The `start-all.sh` should be automatically run on cluster startup. Users 
don't need to automatically run it
2. The Spark master URL is present in a file `/root/spark-ec2/cluster-url`. You 
can just read the file to get the value (no need to get the hostname from EC2 
etc.)
3. I think it should be fine to put this in a profile that gets picked up by 
RStudio. However I'd say we should not use .Rprofile as that may interfere with 
users using the /root/spark/bin/sparkR script ?


> Install and configure RStudio server on Spark EC2
> -------------------------------------------------
>
>                 Key: SPARK-8596
>                 URL: https://issues.apache.org/jira/browse/SPARK-8596
>             Project: Spark
>          Issue Type: Improvement
>          Components: EC2, SparkR
>            Reporter: Shivaram Venkataraman
>
> This will make it convenient for R users to use SparkR from their browsers 



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