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https://issues.apache.org/jira/browse/SPARK-8596?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14615264#comment-14615264
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Shivaram Venkataraman commented on SPARK-8596:
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Hmm the problem is I'm not sure the ulimit applies across shells, which is why 
we were doing it in spark-env.sh. Hmm here are a couple of things

1. We could change it in the AMI in /etc/security/limits.conf
2. Does leaving it in there lead to any error or does it just print a warning 
statement ? If its just a warning, I'd say lets leave it in there. The ulimit 
used to be only needed for really large shuffles, so some of the RStudio use 
cases might work even without it.

> 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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