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From "Daryn Sharp (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9421) Convert SASL to use ProtoBuf and add lengths for non-blocking processing
Date Fri, 21 Jun 2013 01:25:23 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13689940#comment-13689940
] 

Daryn Sharp commented on HADOOP-9421:
-------------------------------------

I know Luke means well, but an initial initiate will never be used after subsequent changes.
 The negotiate will always be required for IP failover and improved token selection.  The
approach is trying to over optimize and weakens the design.

I benched both patches, and Luke's token auth times are 1ms slower after 100 samples but let's
say they are the same. However, Luke's patch is 8-11ms slower with Kerberos than mine. It
also has a subset of the changes to make future changes compatible. 
                
> Convert SASL to use ProtoBuf and add lengths for non-blocking processing
> ------------------------------------------------------------------------
>
>                 Key: HADOOP-9421
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9421
>             Project: Hadoop Common
>          Issue Type: Sub-task
>    Affects Versions: 2.0.3-alpha
>            Reporter: Sanjay Radia
>            Assignee: Daryn Sharp
>            Priority: Blocker
>         Attachments: HADOOP-9421.patch, HADOOP-9421.patch, HADOOP-9421.patch, HADOOP-9421.patch,
HADOOP-9421.patch, HADOOP-9421.patch, HADOOP-9421.patch, HADOOP-9421.patch, HADOOP-9421-v2-demo.patch
>
>


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