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https://issues.apache.org/jira/browse/SPARK-25023?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16568805#comment-16568805
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Thomas Graves commented on SPARK-25023:
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note some of this was already updated with
[https://github.com/apache/spark/pull/20742] but I think there are still a few
clarifications to make
> Clarify Spark security documentation
> ------------------------------------
>
> Key: SPARK-25023
> URL: https://issues.apache.org/jira/browse/SPARK-25023
> Project: Spark
> Issue Type: Bug
> Components: Documentation
> Affects Versions: 2.2.2
> Reporter: Thomas Graves
> Priority: Major
>
> I was reading through our deployment docs and security docs and its not clear
> at all what deployment modes support exactly what for security. I think we
> should clarify the deployments that security is off by default on all
> deployments. We may also want to clarify the types of communication used
> that would need to be secured. We may also want to clarify multi-tenant safe
> vs other things, like standalone mode for instance in my opinion is just note
> secure, we do talk about using spark.authenticate for a secret but all
> applications would use the same secret.
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