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https://issues.apache.org/jira/browse/TEZ-1596?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14182456#comment-14182456
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Rajesh Balamohan edited comment on TEZ-1596 at 10/24/14 5:25 AM:
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[~gopalv], [~sseth] - Can you please review? Attaching profiler snapshot after
fix. Didn't observe the overhead anymore.
was (Author: rajesh.balamohan):
[~gopalv], [~sseth] - Can you please review?
> 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
> Assignee: Rajesh Balamohan
> Attachments: Shuffle_generateHash.png,
> Shuffle_generateHash_afterFix.png, TEZ-1596.2.patch, 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_generateHash.png!
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