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https://issues.apache.org/jira/browse/HADOOP-13836?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15827893#comment-15827893
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Steve Loughran commented on HADOOP-13836:
-----------------------------------------
I don't personally know whether that 12% would go down well or not; I presume
it'd be up to the user. I do know SASL symmetric encryption has a performance
hit all of its own, which is why it is underused. It might be interesting to do
a test run with SASL=encrypt to see what the numbers show up there —maybe they
are even worse than the SSL values.
I'm not in a position to review the RPC code itself, as I'm scared of it. It's
one of those critical-part pieces of code which everyone treads with caution
around. I think you'll need [~daryn] [~sanjay.radia] and [~owen.omalley] to
look at it there. That said, the UML doc you've added does imply that this work
does include some cleanup of today's codebase ... this can only be welcome
> Securing Hadoop RPC using SSL
> -----------------------------
>
> Key: HADOOP-13836
> URL: https://issues.apache.org/jira/browse/HADOOP-13836
> Project: Hadoop Common
> Issue Type: New Feature
> Components: ipc
> Reporter: kartheek muthyala
> Assignee: kartheek muthyala
> Attachments: HADOOP-13836.patch, Secure IPC OSS Proposal-1.pdf,
> SecureIPC Performance Analysis-OSS.pdf
>
>
> Today, RPC connections in Hadoop are encrypted using Simple Authentication &
> Security Layer (SASL), with the Kerberos ticket based authentication or
> Digest-md5 checksum based authentication protocols. This proposal is about
> enhancing this cipher suite with SSL/TLS based encryption and authentication.
> SSL/TLS is a proposed Internet Engineering Task Force (IETF) standard, that
> provides data security and integrity across two different end points in a
> network. This protocol has made its way to a number of applications such as
> web browsing, email, internet faxing, messaging, VOIP etc. And supporting
> this cipher suite at the core of Hadoop would give a good synergy with the
> applications on top and also bolster industry adoption of Hadoop.
> The Server and Client code in Hadoop IPC should support the following modes
> of communication
> 1. Plain
> 2. SASL encryption with an underlying authentication
> 3. SSL based encryption and authentication (x509 certificate)
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