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https://issues.apache.org/jira/browse/HADOOP-9421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13690510#comment-13690510
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Luke Lu commented on HADOOP-9421:
---------------------------------

bq. I'll just add it.

Thank you! It's important to note that we don't need to add the optimizations 
for this jira, which should focus on fixing the protocol. Once the protocol is 
fixed, we can explore new non-blocking client in different languages and enable 
a Cambrian explosion of new use cases! 

bq. REINITIATE is only supposed to happen when mech cache goes stale.

s/only//. System designer can make it happen rarely when mech cache is empty or 
stale and when serverId failover happens.
                
> 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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