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https://issues.apache.org/jira/browse/TEZ-1596?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gopal V updated TEZ-1596:
-------------------------
Attachment: TEZ-1596.hack.patch
shuffle-secure-drilldown.png
[~rajesh.balamohan]: the expensive code is in hadoop SecretManager, we end up
spinning 42 instances of HMACSha1.
!shuffle-secure-drilldown.png!
Badly written patch attached.
> 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: TEZ-1596.hack.patch, shuffle-secure-drilldown.png,
> 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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