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