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https://issues.apache.org/jira/browse/SPARK-1903?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14006334#comment-14006334
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Andrew Ash commented on SPARK-1903:
-----------------------------------
Draft version here: https://github.com/apache/spark/pull/856
> Document Spark's network connections
> ------------------------------------
>
> Key: SPARK-1903
> URL: https://issues.apache.org/jira/browse/SPARK-1903
> Project: Spark
> Issue Type: Documentation
> Components: Documentation
> Affects Versions: 1.0.0
> Reporter: Andrew Ash
>
> For people who want to apply strict firewalls to the Spark cluster, knowing
> when and why what JVMs connect to what other JVMs on what ports would be
> super valuable.
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