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From "Wei-Chiu Chuang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-10768) Optimize Hadoop RPC encryption performance
Date Sat, 12 May 2018 05:08:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-10768?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16472906#comment-16472906
] 

Wei-Chiu Chuang commented on HADOOP-10768:
------------------------------------------

Thanks [~yuzhihong@gmail.com] that was really useful. I spent whole night looking at HBase
Master log but couldn't figure out why. Then looked at RS log and immediately realized the
class name change caused reflection error.

> 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: Dapeng Sun
>            Priority: Major
>         Attachments: HADOOP-10768.001.patch, HADOOP-10768.002.patch, HADOOP-10768.003.patch,
HADOOP-10768.004.patch, HADOOP-10768.005.patch, HADOOP-10768.006.patch, HADOOP-10768.007.patch,
HADOOP-10768.008.patch, HADOOP-10768.009.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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