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https://issues.apache.org/jira/browse/TEZ-1596?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14139601#comment-14139601
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Rajesh Balamohan commented on TEZ-1596:
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[~gopalv] - If you have the profiler output, can we drill one level down.
(This is to understand whether base64 encoding is expensive or the HMAC
generation).
> Secure Shuffle utils is extremely expensive for fast queries
> ------------------------------------------------------------
>
> Key: TEZ-1596
> URL: https://issues.apache.org/jira/browse/TEZ-1596
> Project: Apache Tez
> Issue Type: Bug
> Affects Versions: 0.6.0
> Reporter: Gopal V
> Attachments: shuffle-secure.png
>
>
> Generating the hash for YARN's secure shuffle is more expensive than the
> actual HTTP call once keep-alive is turned on.
> !shuffle-secure.png!
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