[
https://issues.apache.org/jira/browse/HADOOP-10768?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16057643#comment-16057643
]
Daryn Sharp commented on HADOOP-10768:
--------------------------------------
Ok. The patch does appear to encrypt at the packet level, this is good.
Preliminary comments:
# The cipher options appears to be present in every packet. If so, it should
only be in the negotiate/initiate messages.
# Should use a custom sasl client/server that delegates to the actual sasl
instance. The ipc layer changes would be minimal and easier to maintain.
# Why not use javax cipher libraries? Any number of ciphers could be used now
and in the future w/o code change. The aes ciphers are supposed to use aes-ni
intrinsics when available.
> 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
> Attachments: HADOOP-10768.001.patch, HADOOP-10768.002.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.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
