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From "Dapeng Sun (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-10768) Optimize Hadoop RPC encryption performance
Date Fri, 03 Nov 2017 01:50:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-10768?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16236945#comment-16236945
] 

Dapeng Sun commented on HADOOP-10768:
-------------------------------------

Discussed with [~dian.fu], I would like to pick up this JIRA. I will uploaded a new patch
when I finished.

> Optimize Hadoop RPC encryption performance
> ------------------------------------------
>
>                 Key: HADOOP-10768
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10768
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: performance, security
>    Affects Versions: 3.0.0-alpha1
>            Reporter: Yi Liu
>            Assignee: Dian Fu
>            Priority: Major
>         Attachments: HADOOP-10768.001.patch, HADOOP-10768.002.patch, HADOOP-10768.003.patch,
Optimize Hadoop RPC encryption performance.pdf
>
>
> Hadoop RPC encryption is enabled by setting {{hadoop.rpc.protection}} to "privacy". It
utilized SASL {{GSSAPI}} and {{DIGEST-MD5}} mechanisms for secure authentication and data
protection. Even {{GSSAPI}} supports using AES, but without AES-NI support by default, so
the encryption is slow and will become bottleneck.
> After discuss with [~atm], [~tucu00] and [~umamaheswararao], we can do the same optimization
as in HDFS-6606. Use AES-NI with more than *20x* speedup.
> On the other hand, RPC message is small, but RPC is frequent and there may be lots of
RPC calls in one connection, we needs to setup benchmark to see real improvement and then
make a trade-off. 



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