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https://issues.apache.org/jira/browse/SPARK-6017?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14337780#comment-14337780
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Marcelo Vanzin commented on SPARK-6017:
---------------------------------------

ping [~adav] and [~rxin] who might have comments about the changes to the 
network code
ping [~tgraves] and [~sandyr] who might have comments about the Yarn side of 
things

> Provide transparent secure communication channel on Yarn
> --------------------------------------------------------
>
>                 Key: SPARK-6017
>                 URL: https://issues.apache.org/jira/browse/SPARK-6017
>             Project: Spark
>          Issue Type: Umbrella
>          Components: YARN
>            Reporter: Marcelo Vanzin
>         Attachments: secure_spark_on_yarn.pdf
>
>
> A quick description:
> Currently driver and executors communicate through an insecure channel, so 
> anyone can listen on the network and see what's going on. That prevents Spark 
> from adding some features securely (e.g. SPARK-5342, SPARK-5682) without 
> resorting to using internal Hadoop APIs.
> Spark 1.3.0 will add SSL support, but properly configuring SSL is not a 
> trivial task for operators, let alone users.
> In light of those, we should add a more transparent secure transport layer. 
> I've written a short spec to identify the areas in Spark that need work to 
> achieve this, and I'll attach the document to this issue shortly.
> Note I'm restricting things to Yarn currently, because as far as I know it's 
> the only cluster manager that provides the needed security features to 
> bootstrap the secure Spark transport. The design itself doesn't really rely 
> on Yarn per se, just on a secure way to distribute the initial secret (which 
> the Yarn/HDFS combo provides).



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