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https://issues.apache.org/jira/browse/HADOOP-9421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13683963#comment-13683963
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Luke Lu commented on HADOOP-9421:
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bq. Given today's network speeds, I'm not going to fret over a handful of bytes
that greatly enhance the design of the authentication layer.
It's not the bytes but a whole new network/rpc round trip that can be easily
avoided. In WAN and/or when the network is busy the round trip latency can
easily be in hundreds of ms.
bq. That patch resulted in an average 1% penalty and a median 2% penalty to the
first RPC call using kerberos authentication - which translates to less than
10ms.
10ms / 1% means the total latency is 1 second! Something is not right here.
bq. I can likely erase it by removing the unnecessary connection context
I doubt it, the unnecessary connection context is in the noise compared with a
network/rpc round trip.
> 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
> Attachments: HADOOP-9421.patch, HADOOP-9421.patch, HADOOP-9421.patch,
> HADOOP-9421.patch, HADOOP-9421-v2-demo.patch
>
>
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